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10 daysMerge tag 'net-6.12-rc8' of ↵Linus Torvalds5-1/+189
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Paolo Abeni: "Including fixes from bluetooth. Quite calm week. No new regression under investigation. Current release - regressions: - eth: revert "igb: Disable threaded IRQ for igb_msix_other" Current release - new code bugs: - bluetooth: btintel: direct exception event to bluetooth stack Previous releases - regressions: - core: fix data-races around sk->sk_forward_alloc - netlink: terminate outstanding dump on socket close - mptcp: error out earlier on disconnect - vsock: fix accept_queue memory leak - phylink: ensure PHY momentary link-fails are handled - eth: mlx5: - fix null-ptr-deref in add rule err flow - lock FTE when checking if active - eth: dwmac-mediatek: fix inverted handling of mediatek,mac-wol Previous releases - always broken: - sched: fix u32's systematic failure to free IDR entries for hnodes. - sctp: fix possible UAF in sctp_v6_available() - eth: bonding: add ns target multicast address to slave device - eth: mlx5: fix msix vectors to respect platform limit - eth: icssg-prueth: fix 1 PPS sync" * tag 'net-6.12-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (38 commits) net: sched: u32: Add test case for systematic hnode IDR leaks selftests: bonding: add ns multicast group testing bonding: add ns target multicast address to slave device net: ti: icssg-prueth: Fix 1 PPS sync stmmac: dwmac-intel-plat: fix call balance of tx_clk handling routines net: Make copy_safe_from_sockptr() match documentation net: stmmac: dwmac-mediatek: Fix inverted handling of mediatek,mac-wol ipmr: Fix access to mfc_cache_list without lock held samples: pktgen: correct dev to DEV net: phylink: ensure PHY momentary link-fails are handled mptcp: pm: use _rcu variant under rcu_read_lock mptcp: hold pm lock when deleting entry mptcp: update local address flags when setting it net: sched: cls_u32: Fix u32's systematic failure to free IDR entries for hnodes. MAINTAINERS: Re-add cancelled Renesas driver sections Revert "igb: Disable threaded IRQ for igb_msix_other" Bluetooth: btintel: Direct exception event to bluetooth stack Bluetooth: hci_core: Fix calling mgmt_device_connected virtio/vsock: Improve MSG_ZEROCOPY error handling vsock: Fix sk_error_queue memory leak ...
10 daysnet: sched: u32: Add test case for systematic hnode IDR leaksAlexandre Ferrieux1-0/+24
Add a tdc test case to exercise the just-fixed systematic leak of IDR entries in u32 hnode disposal. Given the IDR in question is confined to the range [1..0x7FF], it is sufficient to create/delete the same filter 2048 times to fill it up and get a nonzero exit status from "tc filter add". Signed-off-by: Alexandre Ferrieux <alexandre.ferrieux@orange.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Reviewed-by: Victor Nogueira <victor@mojatatu.com> Link: https://patch.msgid.link/20241113100428.360460-1-alexandre.ferrieux@orange.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
10 daysselftests: bonding: add ns multicast group testingHangbin Liu1-1/+53
Add a test to make sure the backup slaves join correct multicast group when arp_validate enabled and ns_ip6_target is set. Here is the result: TEST: arp_validate (active-backup ns_ip6_target arp_validate 0) [ OK ] TEST: arp_validate (join mcast group) [ OK ] TEST: arp_validate (active-backup ns_ip6_target arp_validate 1) [ OK ] TEST: arp_validate (join mcast group) [ OK ] TEST: arp_validate (active-backup ns_ip6_target arp_validate 2) [ OK ] TEST: arp_validate (join mcast group) [ OK ] TEST: arp_validate (active-backup ns_ip6_target arp_validate 3) [ OK ] TEST: arp_validate (join mcast group) [ OK ] TEST: arp_validate (active-backup ns_ip6_target arp_validate 4) [ OK ] TEST: arp_validate (join mcast group) [ OK ] TEST: arp_validate (active-backup ns_ip6_target arp_validate 5) [ OK ] TEST: arp_validate (join mcast group) [ OK ] TEST: arp_validate (active-backup ns_ip6_target arp_validate 6) [ OK ] TEST: arp_validate (join mcast group) [ OK ] Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
11 daysMerge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfLinus Torvalds1-4/+28
Pull bpf fixes from Daniel Borkmann: - Fix a mismatching RCU unlock flavor in bpf_out_neigh_v6 (Jiawei Ye) - Fix BPF sockmap with kTLS to reject vsock and unix sockets upon kTLS context retrieval (Zijian Zhang) - Fix BPF bits iterator selftest for s390x (Hou Tao) * tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: bpf: Fix mismatched RCU unlock flavour in bpf_out_neigh_v6 bpf: Add sk_is_inet and IS_ICSK check in tls_sw_has_ctx_tx/rx selftests/bpf: Use -4095 as the bad address for bits iterator
11 daysMerge tag 'mm-hotfixes-stable-2024-11-12-16-39' of ↵Linus Torvalds1-0/+7
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull misc fixes from Andrew Morton: "10 hotfixes, 7 of which are cc:stable. 7 are MM, 3 are not. All singletons" * tag 'mm-hotfixes-stable-2024-11-12-16-39' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: mm: swapfile: fix cluster reclaim work crash on rotational devices selftests: hugetlb_dio: fixup check for initial conditions to skip in the start mm/thp: fix deferred split queue not partially_mapped: fix mm/gup: avoid an unnecessary allocation call for FOLL_LONGTERM cases nommu: pass NULL argument to vma_iter_prealloc() ocfs2: fix UBSAN warning in ocfs2_verify_volume() nilfs2: fix null-ptr-deref in block_dirty_buffer tracepoint nilfs2: fix null-ptr-deref in block_touch_buffer tracepoint mm: page_alloc: move mlocked flag clearance into free_pages_prepare() mm: count zeromap read and set for swapout and swapin
12 daysMerge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds4-7/+9
Pull kvm fixes from Paolo Bonzini: "x86 and selftests fixes. x86: - When emulating a guest TLB flush for a nested guest, flush vpid01, not vpid02, if L2 is active but VPID is disabled in vmcs12, i.e. if L2 and L1 are sharing VPID '0' (from L1's perspective). - Fix a bug in the SNP initialization flow where KVM would return '0' to userspace instead of -errno on failure. - Move the Intel PT virtualization (i.e. outputting host trace to host buffer and guest trace to guest buffer) behind CONFIG_BROKEN. - Fix memory leak on failure of KVM_SEV_SNP_LAUNCH_START - Fix a bug where KVM fails to inject an interrupt from the IRR after KVM_SET_LAPIC. Selftests: - Increase the timeout for the memslot performance selftest to avoid false failures on arm64 and nested x86 platforms. - Fix a goof in the guest_memfd selftest where a for-loop initialized a bit mask to zero instead of BIT(0). - Disable strict aliasing when building KVM selftests to prevent the compiler from treating things like "u64 *" to "uint64_t *" cases as undefined behavior, which can lead to nasty, hard to debug failures. - Force -march=x86-64-v2 for KVM x86 selftests if and only if the uarch is supported by the compiler. - Fix broken compilation of kvm selftests after a header sync in tools/" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: VMX: Bury Intel PT virtualization (guest/host mode) behind CONFIG_BROKEN KVM: x86: Unconditionally set irr_pending when updating APICv state kvm: svm: Fix gctx page leak on invalid inputs KVM: selftests: use X86_MEMTYPE_WB instead of VMX_BASIC_MEM_TYPE_WB KVM: SVM: Propagate error from snp_guest_req_init() to userspace KVM: nVMX: Treat vpid01 as current if L2 is active, but with VPID disabled KVM: selftests: Don't force -march=x86-64-v2 if it's unsupported KVM: selftests: Disable strict aliasing KVM: selftests: fix unintentional noop test in guest_memfd_test.c KVM: selftests: memslot_perf_test: increase guest sync timeout
12 daysselftests: hugetlb_dio: fixup check for initial conditions to skip in the startDonet Tom1-0/+7
This test verifies that a hugepage, used as a user buffer for DIO operations, is correctly freed upon unmapping. To test this, we read the count of free hugepages before and after the mmap, DIO, and munmap operations, then check if the free hugepage count is the same. Reading free hugepages before the test was removed by commit 0268d4579901 ('selftests: hugetlb_dio: check for initial conditions to skip at the start'), causing the test to always fail. This patch adds back reading the free hugepages before starting the test. With this patch, the tests are now passing. Test results without this patch: ./tools/testing/selftests/mm/hugetlb_dio TAP version 13 1..4 # No. Free pages before allocation : 0 # No. Free pages after munmap : 100 not ok 1 : Huge pages not freed! # No. Free pages before allocation : 0 # No. Free pages after munmap : 100 not ok 2 : Huge pages not freed! # No. Free pages before allocation : 0 # No. Free pages after munmap : 100 not ok 3 : Huge pages not freed! # No. Free pages before allocation : 0 # No. Free pages after munmap : 100 not ok 4 : Huge pages not freed! # Totals: pass:0 fail:4 xfail:0 xpass:0 skip:0 error:0 Test results with this patch: /tools/testing/selftests/mm/hugetlb_dio TAP version 13 1..4 # No. Free pages before allocation : 100 # No. Free pages after munmap : 100 ok 1 : Huge pages freed successfully ! # No. Free pages before allocation : 100 # No. Free pages after munmap : 100 ok 2 : Huge pages freed successfully ! # No. Free pages before allocation : 100 # No. Free pages after munmap : 100 ok 3 : Huge pages freed successfully ! # No. Free pages before allocation : 100 # No. Free pages after munmap : 100 ok 4 : Huge pages freed successfully ! # Totals: pass:4 fail:0 xfail:0 xpass:0 skip:0 error:0 Link: https://lkml.kernel.org/r/20241110064903.23626-1-donettom@linux.ibm.com Fixes: 0268d4579901 ("selftests: hugetlb_dio: check for initial conditions to skip in the start") Signed-off-by: Donet Tom <donettom@linux.ibm.com> Cc: Muhammad Usama Anjum <usama.anjum@collabora.com> Cc: Shuah Khan <shuah@kernel.org> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
13 daysMerge tag 'sched_ext-for-6.12-rc7-fixes' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext Pull sched_ext fixes from Tejun Heo: - The fair sched class currently has a bug where its balance() returns true telling the sched core that it has tasks to run but then NULL from pick_task(). This makes sched core call sched_ext's pick_task() without preceding balance() which can lead to stalls in partial mode. For now, work around by detecting the condition and forcing the CPU to go through another scheduling cycle. - Add a missing newline to an error message and fix drgn introspection tool which went out of sync. * tag 'sched_ext-for-6.12-rc7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext: sched_ext: Handle cases where pick_task_scx() is called without preceding balance_scx() sched_ext: Update scx_show_state.py to match scx_ops_bypass_depth's new type sched_ext: Add a missing newline at the end of an error message
13 daysMerge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds1-1/+1
Pull virtio fixes from Michael Tsirkin: "Several small bugfixes all over the place" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: vdpa/mlx5: Fix error path during device add vp_vdpa: fix id_table array not null terminated error virtio_pci: Fix admin vq cleanup by using correct info pointer vDPA/ifcvf: Fix pci_read_config_byte() return code handling Fix typo in vringh_test.c vdpa: solidrun: Fix UB bug with devres vsock/virtio: Initialization of the dangling pointer occurring in vsk->trans
14 daysMerge tag 'mm-hotfixes-stable-2024-11-09-22-40' of ↵Linus Torvalds1-7/+12
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull misc fixes from Andrew Morton: "20 hotfixes, 14 of which are cc:stable. Three affect DAMON. Lorenzo's five-patch series to address the mmap_region error handling is here also. Apart from that, various singletons" * tag 'mm-hotfixes-stable-2024-11-09-22-40' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: mailmap: add entry for Thorsten Blum ocfs2: remove entry once instead of null-ptr-dereference in ocfs2_xa_remove() signal: restore the override_rlimit logic fs/proc: fix compile warning about variable 'vmcore_mmap_ops' ucounts: fix counter leak in inc_rlimit_get_ucounts() selftests: hugetlb_dio: check for initial conditions to skip in the start mm: fix docs for the kernel parameter ``thp_anon=`` mm/damon/core: avoid overflow in damon_feed_loop_next_input() mm/damon/core: handle zero schemes apply interval mm/damon/core: handle zero {aggregation,ops_update} intervals mm/mlock: set the correct prev on failure objpool: fix to make percpu slot allocation more robust mm/page_alloc: keep track of free highatomic mm: resolve faulty mmap_region() error path behaviour mm: refactor arch_calc_vm_flag_bits() and arm64 MTE handling mm: refactor map_deny_write_exec() mm: unconditionally close VMAs on error mm: avoid unsafe VMA hook invocation when error arises on mmap hook mm/thp: fix deferred split unqueue naming and locking mm/thp: fix deferred split queue not partially_mapped
2024-11-09selftests: net: add netlink-dumps to .gitignoreJakub Kicinski1-0/+1
Commit 55d42a0c3f9c ("selftests: net: add a test for closing a netlink socket ith dump in progress") added a new test but did not add it to gitignore. Reviewed-by: Joe Damato <jdamato@fastly.com> Link: https://patch.msgid.link/20241108004731.2979878-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-11-08Merge tag 'thermal-6.12-rc7' of ↵Linus Torvalds2-1/+5
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull thermal control fixes from Rafael Wysocki: "These fix one issue in the qcom lmh thermal driver, a DT handling issue in the thermal core and two issues in the userspace thermal library: - Allow tripless thermal zones defined in a DT to be registered in accordance with the thermal DT bindings (Icenowy Zheng) - Annotate LMH IRQs with lockdep classes to prevent lockdep from reporting a possible recursive locking issue that cannot really occur (Dmitry Baryshkov) - Improve the thermal library "make clean" to remove a leftover symbolic link created during compilation and fix the sampling handler invocation in that library to pass the correct pointer to it (Emil Dahl Juhl, zhang jiao)" * tag 'thermal-6.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: thermal/of: support thermal zones w/o trips subnode tools/lib/thermal: Remove the thermal.h soft link when doing make clean tools/lib/thermal: Fix sampling handler context ptr thermal/drivers/qcom/lmh: Remove false lockdep backtrace
2024-11-08KVM: selftests: use X86_MEMTYPE_WB instead of VMX_BASIC_MEM_TYPE_WBJohn Sperbeck1-1/+1
In 08a7d2525511 ("tools arch x86: Sync the msr-index.h copy with the kernel sources"), VMX_BASIC_MEM_TYPE_WB was removed. Use X86_MEMTYPE_WB instead. Fixes: 08a7d2525511 ("tools arch x86: Sync the msr-index.h copy with the kernel sources") Signed-off-by: John Sperbeck <jsperbeck@google.com> Message-ID: <20241106034031.503291-1-jsperbeck@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-11-08Merge tag 'kvm-x86-fixes-6.12-rcN' of https://github.com/kvm-x86/linux into HEADPaolo Bonzini3-6/+8
KVM x86 and selftests fixes for 6.12: - Increase the timeout for the memslot performance selftest to avoid false failures on arm64 and nested x86 platforms. - Fix a goof in the guest_memfd selftest where a for-loop initialized a bit mask to zero instead of BIT(0). - Disable strict aliasing when building KVM selftests to prevent the compiler from treating things like "u64 *" to "uint64_t *" cases as undefined behavior, which can lead to nasty, hard to debug failures. - Force -march=x86-64-v2 for KVM x86 selftests if and only if the uarch is supported by the compiler. - When emulating a guest TLB flush for a nested guest, flush vpid01, not vpid02, if L2 is active but VPID is disabled in vmcs12, i.e. if L2 and L1 are sharing VPID '0' (from L1's perspective). - Fix a bug in the SNP initialization flow where KVM would return '0' to userspace instead of -errno on failure.
2024-11-07selftests: hugetlb_dio: check for initial conditions to skip in the startMuhammad Usama Anjum1-7/+12
The test should be skipped if initial conditions aren't fulfilled in the start instead of failing and outputting non-compliant TAP logs. This kind of failure pollutes the results. The initial conditions are: - The test should only execute if /tmp file can be allocated. - The test should only execute if huge pages are free. Before: TAP version 13 1..4 Bail out! Error opening file : Read-only file system (30) # Planned tests != run tests (4 != 0) # Totals: pass:0 fail:0 xfail:0 xpass:0 skip:0 error:0 After: TAP version 13 1..0 # SKIP Unable to allocate file: Read-only file system Link: https://lkml.kernel.org/r/20241101141557.3159432-1-usama.anjum@collabora.com Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com> Fixes: 3a103b5315b7 ("selftest: mm: Test if hugepage does not get leaked during __bio_release_pages()") Cc: Muhammad Usama Anjum <usama.anjum@collabora.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Donet Tom <donettom@linux.ibm.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-11-07selftests: net: add a test for closing a netlink socket ith dump in progressJakub Kicinski2-0/+111
Close a socket with dump in progress. We need a dump which generates enough info not to fit into a single skb. Policy dump fits the bill. Use the trick discovered by syzbot for keeping a ref on the socket longer than just close, with mqueue. TAP version 13 1..3 # Starting 3 tests from 1 test cases. # RUN global.test_sanity ... # OK global.test_sanity ok 1 global.test_sanity # RUN global.close_in_progress ... # OK global.close_in_progress ok 2 global.close_in_progress # RUN global.close_with_ref ... # OK global.close_with_ref ok 3 global.close_with_ref # PASSED: 3 / 3 tests passed. # Totals: pass:3 fail:0 xfail:0 xpass:0 skip:0 error:0 Note that this test is not expected to fail but rather crash the kernel if we get the cleanup wrong. Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://patch.msgid.link/20241106015235.2458807-2-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-11-06Merge tag 'tracefs-v6.12-rc6' of ↵Linus Torvalds3-13/+129
git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull tracefs fixes from Steven Rostedt: "Fix tracefs mount options. Commit 78ff64081949 ("vfs: Convert tracefs to use the new mount API") broke the gid setting when set by fstab or other mount utility. It is ignored when it is set. Fix the code so that it recognises the option again and will honor the settings on mount at boot up. Update the internal documentation and create a selftest to make sure it doesn't break again in the future" * tag 'tracefs-v6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: tracing/selftests: Add tracefs mount options test tracing: Document tracefs gid mount option tracing: Fix tracefs mount options
2024-11-06Fix typo in vringh_test.cShivam Chaudhary1-1/+1
Corrected minor typo in tools/virtio/vringh_test.c: - Fixed "retreives" to "retrieves" Signed-off-by: Shivam Chaudhary <cvam0000@gmail.com> Message-Id: <20241008145204.478749-1-cvam0000@gmail.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-11-05selftests/bpf: Use -4095 as the bad address for bits iteratorHou Tao1-4/+28
As reported by Byeonguk, the bad_words test in verifier_bits_iter.c occasionally fails on s390 host. Quoting Ilya's explanation: s390 kernel runs in a completely separate address space, there is no user/kernel split at TASK_SIZE. The same address may be valid in both the kernel and the user address spaces, there is no way to tell by looking at it. The config option related to this property is ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE. Also, unfortunately, 0 is a valid address in the s390 kernel address space. Fix the issue by using -4095 as the bad address for bits iterator, as suggested by Ilya. Verify that bpf_iter_bits_new() returns -EINVAL for NULL address and -EFAULT for bad address. Fixes: ebafc1e535db ("selftests/bpf: Add three test cases for bits_iter") Reported-by: Byeonguk Jeong <jungbu2855@gmail.com> Closes: https://lore.kernel.org/bpf/ZycSXwjH4UTvx-Cn@ub22/ Signed-off-by: Hou Tao <houtao1@huawei.com> Acked-by: Ilya Leoshkevich <iii@linux.ibm.com> Link: https://lore.kernel.org/r/20241105043057.3371482-1-houtao@huaweicloud.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-11-05sched_ext: Update scx_show_state.py to match scx_ops_bypass_depth's new typeTejun Heo1-1/+1
0e7ffff1b811 ("scx: Fix raciness in scx_ops_bypass()") converted scx_ops_bypass_depth from an atomic to an int. Update scx_show_state.py accordingly. Signed-off-by: Tejun Heo <tj@kernel.org> Fixes: 0e7ffff1b811 ("scx: Fix raciness in scx_ops_bypass()")
2024-11-04KVM: selftests: Don't force -march=x86-64-v2 if it's unsupportedSean Christopherson1-0/+2
Force -march=x86-64-v2 to avoid SSE/AVX instructions if and only if the uarch definition is supported by the compiler, e.g. gcc 7.5 only supports x86-64. Fixes: 9a400068a158 ("KVM: selftests: x86: Avoid using SSE/AVX instructions") Cc: Vitaly Kuznetsov <vkuznets@redhat.com> Reviewed-and-tested-by: Vitaly Kuznetsov <vkuznets@redhat.com> Link: https://lore.kernel.org/r/20241031045333.1209195-1-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>
2024-11-04KVM: selftests: Disable strict aliasingSean Christopherson1-4/+4
Disable strict aliasing, as has been done in the kernel proper for decades (literally since before git history) to fix issues where gcc will optimize away loads in code that looks 100% correct, but is _technically_ undefined behavior, and thus can be thrown away by the compiler. E.g. arm64's vPMU counter access test casts a uint64_t (unsigned long) pointer to a u64 (unsigned long long) pointer when setting PMCR.N via u64p_replace_bits(), which gcc-13 detects and optimizes away, i.e. ignores the result and uses the original PMCR. The issue is most easily observed by making set_pmcr_n() noinline and wrapping the call with printf(), e.g. sans comments, for this code: printf("orig = %lx, next = %lx, want = %lu\n", pmcr_orig, pmcr, pmcr_n); set_pmcr_n(&pmcr, pmcr_n); printf("orig = %lx, next = %lx, want = %lu\n", pmcr_orig, pmcr, pmcr_n); gcc-13 generates: 0000000000401c90 <set_pmcr_n>: 401c90: f9400002 ldr x2, [x0] 401c94: b3751022 bfi x2, x1, #11, #5 401c98: f9000002 str x2, [x0] 401c9c: d65f03c0 ret 0000000000402660 <test_create_vpmu_vm_with_pmcr_n>: 402724: aa1403e3 mov x3, x20 402728: aa1503e2 mov x2, x21 40272c: aa1603e0 mov x0, x22 402730: aa1503e1 mov x1, x21 402734: 940060ff bl 41ab30 <_IO_printf> 402738: aa1403e1 mov x1, x20 40273c: 910183e0 add x0, sp, #0x60 402740: 97fffd54 bl 401c90 <set_pmcr_n> 402744: aa1403e3 mov x3, x20 402748: aa1503e2 mov x2, x21 40274c: aa1503e1 mov x1, x21 402750: aa1603e0 mov x0, x22 402754: 940060f7 bl 41ab30 <_IO_printf> with the value stored in [sp + 0x60] ignored by both printf() above and in the test proper, resulting in a false failure due to vcpu_set_reg() simply storing the original value, not the intended value. $ ./vpmu_counter_access Random seed: 0x6b8b4567 orig = 3040, next = 3040, want = 0 orig = 3040, next = 3040, want = 0 ==== Test Assertion Failure ==== aarch64/vpmu_counter_access.c:505: pmcr_n == get_pmcr_n(pmcr) pid=71578 tid=71578 errno=9 - Bad file descriptor 1 0x400673: run_access_test at vpmu_counter_access.c:522 2 (inlined by) main at vpmu_counter_access.c:643 3 0x4132d7: __libc_start_call_main at libc-start.o:0 4 0x413653: __libc_start_main at ??:0 5 0x40106f: _start at ??:0 Failed to update PMCR.N to 0 (received: 6) Somewhat bizarrely, gcc-11 also exhibits the same behavior, but only if set_pmcr_n() is marked noinline, whereas gcc-13 fails even if set_pmcr_n() is inlined in its sole caller. Cc: stable@vger.kernel.org Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116912 Signed-off-by: Sean Christopherson <seanjc@google.com>
2024-11-04KVM: selftests: fix unintentional noop test in guest_memfd_test.cPatrick Roy1-1/+1
The loop in test_create_guest_memfd_invalid() that is supposed to test that nothing is accepted as a valid flag to KVM_CREATE_GUEST_MEMFD was initializing `flag` as 0 instead of BIT(0). This caused the loop to immediately exit instead of iterating over BIT(0), BIT(1), ... . Fixes: 8a89efd43423 ("KVM: selftests: Add basic selftest for guest_memfd()") Signed-off-by: Patrick Roy <roypat@amazon.co.uk> Reviewed-by: James Gowans <jgowans@amazon.com> Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com> Link: https://lore.kernel.org/r/20241024095956.3668818-1-roypat@amazon.co.uk Signed-off-by: Sean Christopherson <seanjc@google.com>
2024-11-04KVM: selftests: memslot_perf_test: increase guest sync timeoutMaxim Levitsky1-1/+1
When memslot_perf_test is run nested, first iteration of test_memslot_rw_loop testcase, sometimes takes more than 2 seconds due to build of shadow page tables. Following iterations are fast. To be on the safe side, bump the timeout to 10 seconds. Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com> Tested-by: Liam Merwick <liam.merwick@oracle.com> Reviewed-by: Liam Merwick <liam.merwick@oracle.com> Link: https://lore.kernel.org/r/20241004220153.287459-1-mlevitsk@redhat.com Signed-off-by: Sean Christopherson <seanjc@google.com>
2024-11-04tools/lib/thermal: Remove the thermal.h soft link when doing make cleanzhang jiao1-1/+3
Run "make -C tools thermal" can create a soft link for thermal.h in tools/include/uapi/linux. Just rm it when make clean. Signed-off-by: zhang jiao <zhangjiao2@cmss.chinamobile.com> Link: https://lore.kernel.org/r/20240912045031.18426-1-zhangjiao2@cmss.chinamobile.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2024-11-04tools/lib/thermal: Fix sampling handler context ptrEmil Dahl Juhl1-0/+2
The sampling handler, provided by the user alongside a void* context, was invoked with an internal structure instead of the user context. Correct the invocation of the sampling handler to pass the user context pointer instead. Note that the approach taken is similar to that in events.c, and will reduce the chances of this mistake happening if additional sampling callbacks are added. Fixes: 47c4b0de080a ("tools/lib/thermal: Add a thermal library") Signed-off-by: Emil Dahl Juhl <emdj@bang-olufsen.dk> Link: https://lore.kernel.org/r/20241015171826.170154-1-emdj@bang-olufsen.dk Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2024-11-03Merge tag 'mm-hotfixes-stable-2024-11-03-10-50' of ↵Linus Torvalds2-5/+8
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull misc fixes from Andrew Morton: "17 hotfixes. 9 are cc:stable. 13 are MM and 4 are non-MM. The usual collection of singletons - please see the changelogs" * tag 'mm-hotfixes-stable-2024-11-03-10-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: mm: multi-gen LRU: use {ptep,pmdp}_clear_young_notify() mm: multi-gen LRU: remove MM_LEAF_OLD and MM_NONLEAF_TOTAL stats mm, mmap: limit THP alignment of anonymous mappings to PMD-aligned sizes mm: shrinker: avoid memleak in alloc_shrinker_info .mailmap: update e-mail address for Eugen Hristev vmscan,migrate: fix page count imbalance on node stats when demoting pages mailmap: update Jarkko's email addresses mm: allow set/clear page_type again nilfs2: fix potential deadlock with newly created symlinks Squashfs: fix variable overflow in squashfs_readpage_block kasan: remove vmalloc_percpu test tools/mm: -Werror fixes in page-types/slabinfo mm, swap: avoid over reclaim of full clusters mm: fix PSWPIN counter for large folios swap-in mm: avoid VM_BUG_ON when try to map an anon large folio to zero page. mm/codetag: fix null pointer check logic for ref and tag mm/gup: stop leaking pinned pages in low memory conditions
2024-11-03Merge tag 'usb-6.12-rc6' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB / Thunderbolt fixes from Greg KH: "Here are some small USB and Thunderbolt driver fixes for 6.12-rc6 that have been sitting in my tree this week. Included in here are the following: - thunderbolt driver fixes for reported issues - USB typec driver fixes - xhci driver fixes for reported problems - dwc2 driver revert for a broken change - usb phy driver fix - usbip tool fix All of these have been in linux-next this week with no reported issues" * tag 'usb-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: usb: typec: tcpm: restrict SNK_WAIT_CAPABILITIES_TIMEOUT transitions to non self-powered devices usb: phy: Fix API devm_usb_put_phy() can not release the phy usb: typec: use cleanup facility for 'altmodes_node' usb: typec: fix unreleased fwnode_handle in typec_port_register_altmodes() usb: typec: qcom-pmic-typec: fix missing fwnode removal in error path usb: typec: qcom-pmic-typec: use fwnode_handle_put() to release fwnodes usb: acpi: fix boot hang due to early incorrect 'tunneled' USB3 device links Revert "usb: dwc2: Skip clock gating on Broadcom SoCs" xhci: Fix Link TRB DMA in command ring stopped completion event xhci: Use pm_runtime_get to prevent RPM on unsupported systems usbip: tools: Fix detach_port() invalid port error path thunderbolt: Honor TMU requirements in the domain when setting TMU mode thunderbolt: Fix KASAN reported stack out-of-bounds read in tb_retimer_scan()
2024-11-01Merge tag 'linux_kselftest-fixes-6.12-rc6' of ↵Linus Torvalds3-2/+22
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull Kselftest fixes from Shuah Khan: - fix syntax error in frequency calculation arithmetic expression in intel_pstate run.sh - add missing cpupower dependency check intel_pstate run.sh - fix idmap_mount_tree_invalid test failure due to incorrect argument - fix watchdog-test run leaving the watchdog timer enabled causing system reboot. With this fix, the test disables the watchdog timer when it gets terminated with SIGTERM, SIGKILL, and SIGQUIT in addition to SIGINT * tag 'linux_kselftest-fixes-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests/watchdog-test: Fix system accidentally reset after watchdog-test selftests/intel_pstate: check if cpupower is installed selftests/intel_pstate: fix operand expected error selftests/mount_setattr: fix idmap_mount_tree_invalid failed to run
2024-11-01Merge tag 'cxl-fixes-6.12-rc6' of ↵Linus Torvalds2-92/+109
git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl Pull cxl fixes from Ira Weiny: "The bulk of these fixes center around an initialization order bug reported by Gregory Price and some additional fall out from the debugging effort. In summary, cxl_acpi and cxl_mem race and previously worked because of a bus_rescan_devices() while testing without modules built in. Unfortunately with modules built in the rescan would fail due to the cxl_port driver being registered late via the build order. Furthermore it was found bus_rescan_devices() did not guarantee a probe barrier which CXL was expecting. Additional fixes to cxl-test and decoder allocation came along as they were found in this debugging effort. The other fixes are pretty minor but one affects trace point data seen by user space. Summary: - Fix crashes when running with cxl-test code - Fix Trace DRAM Event Record field decodes - Fix module/built in initialization order errors - Fix use after free on decoder shutdowns - Fix out of order decoder allocations - Improve cxl-test to better reflect real world systems" * tag 'cxl-fixes-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: cxl/test: Improve init-order fidelity relative to real-world systems cxl/port: Prevent out-of-order decoder allocation cxl/port: Fix use-after-free, permit out-of-order decoder shutdown cxl/acpi: Ensure ports ready at cxl_acpi_probe() return cxl/port: Fix cxl_bus_rescan() vs bus_rescan_devices() cxl/port: Fix CXL port initialization order when the subsystem is built-in cxl/events: Fix Trace DRAM Event Record cxl/core: Return error when cxl_endpoint_gather_bandwidth() handles a non-PCI device
2024-11-01tracing/selftests: Add tracefs mount options testKalesh Singh3-13/+129
Add a selftest to check that the tracefs gid mount option is applied correctly. ./ftracetest test.d/00basic/mount_options.tc Use the new readme string "[gid=<gid>] as a requirement and also update test_ownership.tc requirements to use this. Cc: Eric Sandeen <sandeen@redhat.com> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Ali Zahraee <ahzahraee@gmail.com> Cc: Christian Brauner <brauner@kernel.org> Cc: David Howells <dhowells@redhat.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Link: https://lore.kernel.org/20241030171928.4168869-4-kaleshsingh@google.com Signed-off-by: Kalesh Singh <kaleshsingh@google.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2024-10-31Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfLinus Torvalds5-58/+191
Pull bpf fixes from Daniel Borkmann: - Fix BPF verifier to force a checkpoint when the program's jump history becomes too long (Eduard Zingerman) - Add several fixes to the BPF bits iterator addressing issues like memory leaks and overflow problems (Hou Tao) - Fix an out-of-bounds write in trie_get_next_key (Byeonguk Jeong) - Fix BPF test infra's LIVE_FRAME frame update after a page has been recycled (Toke Høiland-Jørgensen) - Fix BPF verifier and undo the 40-bytes extra stack space for bpf_fastcall patterns due to various bugs (Eduard Zingerman) - Fix a BPF sockmap race condition which could trigger a NULL pointer dereference in sock_map_link_update_prog (Cong Wang) - Fix tcp_bpf_recvmsg_parser to retrieve seq_copied from tcp_sk under the socket lock (Jiayuan Chen) * tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: bpf, test_run: Fix LIVE_FRAME frame update after a page has been recycled selftests/bpf: Add three test cases for bits_iter bpf: Use __u64 to save the bits in bits iterator bpf: Check the validity of nr_words in bpf_iter_bits_new() bpf: Add bpf_mem_alloc_check_size() helper bpf: Free dynamically allocated bits in bpf_iter_bits_destroy() bpf: disallow 40-bytes extra stack for bpf_fastcall patterns selftests/bpf: Add test for trie_get_next_key() bpf: Fix out-of-bounds write in trie_get_next_key() selftests/bpf: Test with a very short loop bpf: Force checkpoint when jmp history is too long bpf: fix filed access without lock sock_map: fix a NULL pointer dereference in sock_map_link_update_prog()
2024-10-31Merge tag 'net-6.12-rc6' of ↵Linus Torvalds10-21/+197
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Paolo Abeni: "Including fixes from WiFi, bluetooth and netfilter. No known new regressions outstanding. Current release - regressions: - wifi: mt76: do not increase mcu skb refcount if retry is not supported Current release - new code bugs: - wifi: - rtw88: fix the RX aggregation in USB 3 mode - mac80211: fix memory corruption bug in struct ieee80211_chanctx Previous releases - regressions: - sched: - stop qdisc_tree_reduce_backlog on TC_H_ROOT - sch_api: fix xa_insert() error path in tcf_block_get_ext() - wifi: - revert "wifi: iwlwifi: remove retry loops in start" - cfg80211: clear wdev->cqm_config pointer on free - netfilter: fix potential crash in nf_send_reset6() - ip_tunnel: fix suspicious RCU usage warning in ip_tunnel_find() - bluetooth: fix null-ptr-deref in hci_read_supported_codecs - eth: mlxsw: add missing verification before pushing Tx header - eth: hns3: fixed hclge_fetch_pf_reg accesses bar space out of bounds issue Previous releases - always broken: - wifi: mac80211: do not pass a stopped vif to the driver in .get_txpower - netfilter: sanitize offset and length before calling skb_checksum() - core: - fix crash when config small gso_max_size/gso_ipv4_max_size - skip offload for NETIF_F_IPV6_CSUM if ipv6 header contains extension - mptcp: protect sched with rcu_read_lock - eth: ice: fix crash on probe for DPLL enabled E810 LOM - eth: macsec: fix use-after-free while sending the offloading packet - eth: stmmac: fix unbalanced DMA map/unmap for non-paged SKB data - eth: hns3: fix kernel crash when 1588 is sent on HIP08 devices - eth: mtk_wed: fix path of MT7988 WO firmware" * tag 'net-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (70 commits) net: hns3: fix kernel crash when 1588 is sent on HIP08 devices net: hns3: fixed hclge_fetch_pf_reg accesses bar space out of bounds issue net: hns3: initialize reset_timer before hclgevf_misc_irq_init() net: hns3: don't auto enable misc vector net: hns3: Resolved the issue that the debugfs query result is inconsistent. net: hns3: fix missing features due to dev->features configuration too early net: hns3: fixed reset failure issues caused by the incorrect reset type net: hns3: add sync command to sync io-pgtable net: hns3: default enable tx bounce buffer when smmu enabled netfilter: nft_payload: sanitize offset and length before calling skb_checksum() net: ethernet: mtk_wed: fix path of MT7988 WO firmware selftests: forwarding: Add IPv6 GRE remote change tests mlxsw: spectrum_ipip: Fix memory leak when changing remote IPv6 address mlxsw: pci: Sync Rx buffers for device mlxsw: pci: Sync Rx buffers for CPU mlxsw: spectrum_ptp: Add missing verification before pushing Tx header net: skip offload for NETIF_F_IPV6_CSUM if ipv6 header contains extension Bluetooth: hci: fix null-ptr-deref in hci_read_supported_codecs netfilter: nf_reject_ipv6: fix potential crash in nf_send_reset6() netfilter: Fix use-after-free in get_info() ...
2024-10-31Merge tag 'nf-24-10-31' of ↵Paolo Abeni1-3/+3
git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf Pablo Neira Ayuso says: ==================== The following patchset contains Netfilter fixes for net: 1) Remove unused parameters in conntrack_dump_flush.c used by selftests, from Liu Jing. 2) Fix possible UaF when removing xtables module via getsockopt() interface, from Dong Chenchen. 3) Fix potential crash in nf_send_reset6() reported by syzkaller. From Eric Dumazet 4) Validate offset and length before calling skb_checksum() in nft_payload, otherwise hitting BUG() is possible. netfilter pull request 24-10-31 * tag 'nf-24-10-31' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf: netfilter: nft_payload: sanitize offset and length before calling skb_checksum() netfilter: nf_reject_ipv6: fix potential crash in nf_send_reset6() netfilter: Fix use-after-free in get_info() selftests: netfilter: remove unused parameter ==================== Link: https://patch.msgid.link/ Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-10-30tools/mm: -Werror fixes in page-types/slabinfoWladislav Wiebe2-5/+8
Commit e6d2c436ff693 ("tools/mm: allow users to provide additional cflags/ldflags") passes now CFLAGS to Makefile. With this, build systems with default -Werror enabled found: slabinfo.c:1300:25: error: ignoring return value of 'chdir' declared with attribute 'warn_unused_result' [-Werror=unused-result]                          chdir("..");                          ^~~~~~~~~~~ page-types.c:397:35: error: format '%lu' expects argument of type 'long unsigned int', but argument 2 has type 'uint64_t' {aka 'long long unsigned int'} [-Werror=format=]                          printf("%lu\t", mapcnt0);                                  ~~^     ~~~~~~~ .. Fix page-types by using PRIu64 for uint64_t prints and check in slabinfo for return code on chdir(".."). Link: https://lkml.kernel.org/r/c1ceb507-94bc-461c-934d-c19b77edd825@gmail.com Fixes: e6d2c436ff69 ("tools/mm: allow users to provide additional cflags/ldflags") Signed-off-by: Wladislav Wiebe <wladislav.kw@gmail.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Herton R. Krzesinski <herton@redhat.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-10-30selftests: forwarding: Add IPv6 GRE remote change testsIdo Schimmel7-0/+164
Test that after changing the remote address of an ip6gre net device traffic is forwarded as expected. Test with both flat and hierarchical topologies and with and without an input / output keys. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Petr Machata <petrm@nvidia.com> Link: https://patch.msgid.link/02b05246d2cdada0cf2fccffc0faa8a424d0f51b.1729866134.git.petrm@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-10-30Merge tag 'perf-tools-fixes-for-v6.12-2-2024-10-30' of ↵Linus Torvalds18-51/+174
git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools Pull perf tools fixes from Arnaldo Carvalho de Melo: - Update more header copies with the kernel sources, including const.h, msr-index.h, arm64's cputype.h, kvm's, bits.h and unaligned.h - The return from 'write' isn't a pid, fix cut'n'paste error in 'perf trace' - Fix up the python binding build on architectures without HAVE_KVM_STAT_SUPPORT - Add some more bounds checks to augmented_raw_syscalls.bpf.c (used to collect syscall pointer arguments in 'perf trace') to make the resulting bytecode to pass the kernel BPF verifier, allowing us to go back accepting clang 12.0.1 as the minimum version required for compiling BPF sources - Add __NR_capget for x86 to fix a regression on running perf + intel PT (hw tracing) as non-root setting up the capabilities as described in https://www.kernel.org/doc/html/latest/admin-guide/perf-security.html - Fix missing syscalltbl in non-explicitly listed architectures, noticed on ARM 32-bit, that still needs a .tbl generator for the syscall id<->name tables, should be added for v6.13 - Handle 'perf test' failure when handling broken DWARF for ASM files * tag 'perf-tools-fixes-for-v6.12-2-2024-10-30' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: perf cap: Add __NR_capget to arch/x86 unistd tools headers: Update the linux/unaligned.h copy with the kernel sources tools headers arm64: Sync arm64's cputype.h with the kernel sources tools headers: Synchronize {uapi/}linux/bits.h with the kernel sources tools arch x86: Sync the msr-index.h copy with the kernel sources perf python: Fix up the build on architectures without HAVE_KVM_STAT_SUPPORT perf test: Handle perftool-testsuite_probe failure due to broken DWARF tools headers UAPI: Sync kvm headers with the kernel sources perf trace: Fix non-listed archs in the syscalltbl routines perf build: Change the clang check back to 12.0.1 perf trace augmented_raw_syscalls: Add more checks to pass the verifier perf trace augmented_raw_syscalls: Add extra array index bounds checking to satisfy some BPF verifiers perf trace: The return from 'write' isn't a pid tools headers UAPI: Sync linux/const.h with the kernel headers
2024-10-30selftests/bpf: Add three test cases for bits_iterHou Tao1-3/+58
Add more test cases for bits iterator: (1) huge word test Verify the multiplication overflow of nr_bits in bits_iter. Without the overflow check, when nr_words is 67108865, nr_bits becomes 64, causing bpf_probe_read_kernel_common() to corrupt the stack. (2) max word test Verify correct handling of maximum nr_words value (511). (3) bad word test Verify early termination of bits iteration when bits iterator initialization fails. Also rename bits_nomem to bits_too_big to better reflect its purpose. Signed-off-by: Hou Tao <houtao1@huawei.com> Link: https://lore.kernel.org/r/20241030100516.3633640-6-houtao@huaweicloud.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-10-30selftests: netfilter: remove unused parameterLiu Jing1-3/+3
err is never used, remove it. Signed-off-by: Liu Jing <liujing@cmss.chinamobile.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2024-10-29bpf: disallow 40-bytes extra stack for bpf_fastcall patternsEduard Zingerman1-55/+0
Hou Tao reported an issue with bpf_fastcall patterns allowing extra stack space above MAX_BPF_STACK limit. This extra stack allowance is not integrated properly with the following verifier parts: - backtracking logic still assumes that stack can't exceed MAX_BPF_STACK; - bpf_verifier_env->scratched_stack_slots assumes only 64 slots are available. Here is an example of an issue with precision tracking (note stack slot -8 tracked as precise instead of -520): 0: (b7) r1 = 42 ; R1_w=42 1: (b7) r2 = 42 ; R2_w=42 2: (7b) *(u64 *)(r10 -512) = r1 ; R1_w=42 R10=fp0 fp-512_w=42 3: (7b) *(u64 *)(r10 -520) = r2 ; R2_w=42 R10=fp0 fp-520_w=42 4: (85) call bpf_get_smp_processor_id#8 ; R0_w=scalar(...) 5: (79) r2 = *(u64 *)(r10 -520) ; R2_w=42 R10=fp0 fp-520_w=42 6: (79) r1 = *(u64 *)(r10 -512) ; R1_w=42 R10=fp0 fp-512_w=42 7: (bf) r3 = r10 ; R3_w=fp0 R10=fp0 8: (0f) r3 += r2 mark_precise: frame0: last_idx 8 first_idx 0 subseq_idx -1 mark_precise: frame0: regs=r2 stack= before 7: (bf) r3 = r10 mark_precise: frame0: regs=r2 stack= before 6: (79) r1 = *(u64 *)(r10 -512) mark_precise: frame0: regs=r2 stack= before 5: (79) r2 = *(u64 *)(r10 -520) mark_precise: frame0: regs= stack=-8 before 4: (85) call bpf_get_smp_processor_id#8 mark_precise: frame0: regs= stack=-8 before 3: (7b) *(u64 *)(r10 -520) = r2 mark_precise: frame0: regs=r2 stack= before 2: (7b) *(u64 *)(r10 -512) = r1 mark_precise: frame0: regs=r2 stack= before 1: (b7) r2 = 42 9: R2_w=42 R3_w=fp42 9: (95) exit This patch disables the additional allowance for the moment. Also, two test cases are removed: - bpf_fastcall_max_stack_ok: it fails w/o additional stack allowance; - bpf_fastcall_max_stack_fail: this test is no longer necessary, stack size follows regular rules, pattern invalidation is checked by other test cases. Reported-by: Hou Tao <houtao@huaweicloud.com> Closes: https://lore.kernel.org/bpf/20241023022752.172005-1-houtao@huaweicloud.com/ Fixes: 5b5f51bff1b6 ("bpf: no_caller_saved_registers attribute for helper calls") Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> Acked-by: Andrii Nakryiko <andrii@kernel.org> Tested-by: Hou Tao <houtao1@huawei.com> Link: https://lore.kernel.org/r/20241029193911.1575719-1-eddyz87@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-10-29Merge tag 'sched_ext-for-6.12-rc5-fixes' of ↵Linus Torvalds23-88/+102
git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext Pull sched_ext fixes from Tejun Heo: - Instances of scx_ops_bypass() could race each other leading to misbehavior. Fix by protecting the operation with a spinlock. - selftest and userspace header fixes * tag 'sched_ext-for-6.12-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext: sched_ext: Fix enq_last_no_enq_fails selftest sched_ext: Make cast_mask() inline scx: Fix raciness in scx_ops_bypass() scx: Fix exit selftest to use custom DSQ sched_ext: Fix function pointer type mismatches in BPF selftests selftests/sched_ext: add order-only dependency of runner.o on BPFOBJ
2024-10-29selftests/bpf: Add test for trie_get_next_key()Byeonguk Jeong1-0/+109
Add a test for out-of-bounds write in trie_get_next_key() when a full path from root to leaf exists and bpf_map_get_next_key() is called with the leaf node. It may crashes the kernel on failure, so please run in a VM. Signed-off-by: Byeonguk Jeong <jungbu2855@gmail.com> Acked-by: Hou Tao <houtao1@huawei.com> Link: https://lore.kernel.org/r/Zxx4ep78tsbeWPVM@localhost.localdomain Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-10-29selftests/bpf: Test with a very short loopEduard Zingerman2-0/+24
The test added is a simplified reproducer from syzbot report [1]. If verifier does not insert checkpoint somewhere inside the loop, verification of the program would take a very long time. This would happen because mark_chain_precision() for register r7 would constantly trace jump history of the loop back, processing many iterations for each mark_chain_precision() call. [1] https://lore.kernel.org/bpf/670429f6.050a0220.49194.0517.GAE@google.com/ Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20241029172641.1042523-2-eddyz87@gmail.com
2024-10-29selftests: netfilter: nft_flowtable.sh: make first pass deterministicFlorian Westphal1-18/+21
The CI occasionaly encounters a failing test run. Example: # PASS: ipsec tunnel mode for ns1/ns2 # re-run with random mtus: -o 10966 -l 19499 -r 31322 # PASS: flow offloaded for ns1/ns2 [..] # FAIL: ipsec tunnel ... counter 1157059 exceeds expected value 878489 This script will re-exec itself, on the second run, random MTUs are chosen for the involved links. This is done so we can cover different combinations (large mtu on client, small on server, link has lowest mtu, etc). Furthermore, file size is random, even for the first run. Rework this script and always use the same file size on initial run so that at least the first round can be expected to have reproducible behavior. Second round will use random mtu/filesize. Raise the failure limit to that of the file size, this should avoid all errneous test errors. Currently, first fin will remove the offload, so if one peer is already closing remaining data is handled by classic path, which result in larger-than-expected counter and a test failure. Given packet path also counts tcp/ip headers, in case offload is completely broken this test will still fail (as expected). The test counter limit could be made more strict again in the future once flowtable can keep a connection in offloaded state until FINs in both directions were seen. Signed-off-by: Florian Westphal <fw@strlen.de> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20241022152324.13554-1-fw@strlen.de Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-10-28selftests/mm: fix deadlock for fork after pthread_create with atomic_boolEdward Liaw1-0/+5
Some additional synchronization is needed on Android ARM64; we see a deadlock with pthread_create when the parent thread races forward before the child has a chance to start doing work. Link: https://lkml.kernel.org/r/20241018171734.2315053-4-edliaw@google.com Fixes: cff294582798 ("selftests/mm: extend and rename uffd pagemap test") Signed-off-by: Edward Liaw <edliaw@google.com> Cc: Ryan Roberts <ryan.roberts@arm.com> Cc: Peter Xu <peterx@redhat.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-10-28Revert "selftests/mm: replace atomic_bool with pthread_barrier_t"Edward Liaw3-12/+10
This reverts commit e61ef21e27e8deed8c474e9f47f4aa7bc37e138c. uffd_poll_thread may be called by other tests that do not initialize the pthread_barrier, so this approach is not correct. This will revert to using atomic_bool instead. Link: https://lkml.kernel.org/r/20241018171734.2315053-3-edliaw@google.com Fixes: e61ef21e27e8 ("selftests/mm: replace atomic_bool with pthread_barrier_t") Signed-off-by: Edward Liaw <edliaw@google.com> Cc: Ryan Roberts <ryan.roberts@arm.com> Cc: Peter Xu <peterx@redhat.com> Cc: Shuah Khan <shuah@kernel.org> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-10-28Revert "selftests/mm: fix deadlock for fork after pthread_create on ARM"Edward Liaw1-7/+0
Patch series "selftests/mm: revert pthread_barrier change" On Android arm, pthread_create followed by a fork caused a deadlock in the case where the fork required work to be completed by the created thread. The previous patches incorrectly assumed that the parent would always initialize the pthread_barrier for the child thread. This reverts the change and replaces the fix for wp-fork-with-event with the original use of atomic_bool. This patch (of 3): This reverts commit e142cc87ac4ec618f2ccf5f68aedcd6e28a59d9d. fork_event_consumer may be called by other tests that do not initialize the pthread_barrier, so this approach is not correct. The subsequent patch will revert to using atomic_bool instead. Link: https://lkml.kernel.org/r/20241018171734.2315053-1-edliaw@google.com Link: https://lkml.kernel.org/r/20241018171734.2315053-2-edliaw@google.com Fixes: e142cc87ac4e ("fix deadlock for fork after pthread_create on ARM") Signed-off-by: Edward Liaw <edliaw@google.com> Cc: Ryan Roberts <ryan.roberts@arm.com> Cc: Peter Xu <peterx@redhat.com> Cc: Shuah Khan <shuah@kernel.org> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-10-28tools: testing: add expand-only mode VMA testLorenzo Stoakes1-0/+40
Add a test to assert that VMG_FLAG_JUST_EXPAND functions as expected - that is, when the VMA iterator is positioned at the previous VMA and no VMAs proceed it, we observe an expansion with all state as expected. Explicitly place a prior VMA that would otherwise fail this test if the mode were not enabled (as it would traverse to the previous-previous VMA). Link: https://lkml.kernel.org/r/d2f88330254a6448092412bf7dfe077a579ab0dc.1729174352.git.lorenzo.stoakes@oracle.com Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Cc: Jann Horn <jannh@google.com> Cc: kernel test robot <oliver.sang@intel.com> Cc: Liam R. Howlett <Liam.Howlett@Oracle.com> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-10-28selftests/watchdog-test: Fix system accidentally reset after watchdog-testLi Zhijian1-0/+6
When running watchdog-test with 'make run_tests', the watchdog-test will be terminated by a timeout signal(SIGTERM) due to the test timemout. And then, a system reboot would happen due to watchdog not stop. see the dmesg as below: ``` [ 1367.185172] watchdog: watchdog0: watchdog did not stop! ``` Fix it by registering more signals(including SIGTERM) in watchdog-test, where its signal handler will stop the watchdog. After that # timeout 1 ./watchdog-test Watchdog Ticking Away! . Stopping watchdog ticks... Link: https://lore.kernel.org/all/20241029031324.482800-1-lizhijian@fujitsu.com/ Signed-off-by: Li Zhijian <lizhijian@fujitsu.com> Reviewed-by: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2024-10-29usbip: tools: Fix detach_port() invalid port error pathZongmin Zhou1-0/+1
The detach_port() doesn't return error when detach is attempted on an invalid port. Fixes: 40ecdeb1a187 ("usbip: usbip_detach: fix to check for invalid ports") Cc: stable@vger.kernel.org Reviewed-by: Hongren Zheng <i@zenithal.me> Reviewed-by: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: Zongmin Zhou <zhouzongmin@kylinos.cn> Link: https://lore.kernel.org/r/20241024022700.1236660-1-min_halo@163.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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