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authorHoward Chung <howardchung@google.com>2021-02-03 15:09:29 +0800
committerMarcel Holtmann <marcel@holtmann.org>2021-02-03 14:32:46 +0100
commitb1810febda94cae09e1095d02fad3be00ce93b6d (patch)
treebc2fff79b3c9407fcd5d30a301f00976247068c4 /arch/csky
parentde71a6cb4bf24d8993b9ca90d1ddb131b60251a1 (diff)
Bluetooth: Fix crash in mgmt_add_adv_patterns_monitor_complete
If hci_add_adv_monitor is a pending command(e.g. forward to msft_add_monitor_pattern), it is possible that mgmt_add_adv_patterns_monitor_complete gets called before cmd->user_data gets set, which will cause a crash when we try to get the moniter handle through cmd->user_data in mgmt_add_adv_patterns_monitor_complete. This moves the cmd->user_data assignment earlier than hci_add_adv_monitor. RIP: 0010:mgmt_add_adv_patterns_monitor_complete+0x82/0x187 [bluetooth] Code: 1e bf 03 00 00 00 be 52 00 00 00 4c 89 ea e8 9e e4 02 00 49 89 c6 48 85 c0 0f 84 06 01 00 00 48 89 5d b8 4c 89 fb 4d 8b 7e 30 <41> 0f b7 47 18 66 89 45 c0 45 84 e4 75 5a 4d 8b 56 28 48 8d 4d c8 RSP: 0018:ffffae81807dbcb8 EFLAGS: 00010286 RAX: ffff91c4bdf723c0 RBX: 0000000000000000 RCX: ffff91c4e5da5b80 RDX: ffff91c405680000 RSI: 0000000000000052 RDI: ffff91c49d654c00 RBP: ffffae81807dbd00 R08: ffff91c49fb157e0 R09: ffff91c49fb157e0 R10: 000000000002a4f0 R11: ffffffffc0819cfd R12: 0000000000000000 R13: ffff91c405680000 R14: ffff91c4bdf723c0 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff91c4ea300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000018 CR3: 0000000133612002 CR4: 00000000003606e0 Call Trace: ? msft_le_monitor_advertisement_cb+0x111/0x141 [bluetooth] hci_event_packet+0x425e/0x631c [bluetooth] ? printk+0x59/0x73 ? __switch_to_asm+0x41/0x70 ? msft_le_set_advertisement_filter_enable_cb+0xa6/0xa6 [bluetooth] ? bt_dbg+0xb4/0xbb [bluetooth] ? __switch_to_asm+0x41/0x70 hci_rx_work+0x101/0x319 [bluetooth] process_one_work+0x257/0x506 worker_thread+0x10d/0x284 kthread+0x14c/0x154 ? process_one_work+0x506/0x506 ? kthread_blkcg+0x2c/0x2c ret_from_fork+0x1f/0x40 Reviewed-by: Miao-chen Chou <mcchou@chromium.org> Reviewed-by: Manish Mandlik <mmandlik@chromium.org> Reviewed-by: Archie Pusaka <apusaka@chromium.org> Signed-off-by: Howard Chung <howardchung@google.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'arch/csky')
0 files changed, 0 insertions, 0 deletions