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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-08 18:48:34 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-08 18:48:34 -0700 |
| commit | 583090b1b8232e6eae243a9009699666153a13a9 (patch) | |
| tree | d263fd03fe39bf183ef3281dbd9b35b4e6b2dc90 | |
| parent | 3fdd47c3b40ac48e6e6e5904cf24d12e6e073a96 (diff) | |
| parent | e0894cd618e420d7bacebadcd26b7193780332e2 (diff) | |
Merge tag 'block5.9-2020-10-08' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"A few fixes that should go into this release:
- NVMe controller error path reference fix (Chaitanya)
- Fix regression with IBM partitions on non-dasd devices (Christoph)
- Fix a missing clear in the compat CDROM packet structure (Peilin)"
* tag 'block5.9-2020-10-08' of git://git.kernel.dk/linux-block:
partitions/ibm: fix non-DASD devices
nvme-core: put ctrl ref when module ref get fail
block/scsi-ioctl: Fix kernel-infoleak in scsi_put_cdrom_generic_arg()
| -rw-r--r-- | block/partitions/ibm.c | 7 | ||||
| -rw-r--r-- | block/scsi_ioctl.c | 1 | ||||
| -rw-r--r-- | drivers/nvme/host/core.c | 4 |
3 files changed, 7 insertions, 5 deletions
diff --git a/block/partitions/ibm.c b/block/partitions/ibm.c index d6e18df9c53c..4b044e620d35 100644 --- a/block/partitions/ibm.c +++ b/block/partitions/ibm.c @@ -305,8 +305,6 @@ int ibm_partition(struct parsed_partitions *state) if (!disk->fops->getgeo) goto out_exit; fn = symbol_get(dasd_biodasdinfo); - if (!fn) - goto out_exit; blocksize = bdev_logical_block_size(bdev); if (blocksize <= 0) goto out_symbol; @@ -326,7 +324,7 @@ int ibm_partition(struct parsed_partitions *state) geo->start = get_start_sect(bdev); if (disk->fops->getgeo(bdev, geo)) goto out_freeall; - if (fn(disk, info)) { + if (!fn || fn(disk, info)) { kfree(info); info = NULL; } @@ -370,7 +368,8 @@ out_nolab: out_nogeo: kfree(info); out_symbol: - symbol_put(dasd_biodasdinfo); + if (fn) + symbol_put(dasd_biodasdinfo); out_exit: return res; } diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c index ef722f04f88a..72108404718f 100644 --- a/block/scsi_ioctl.c +++ b/block/scsi_ioctl.c @@ -651,6 +651,7 @@ struct compat_cdrom_generic_command { compat_int_t stat; compat_caddr_t sense; unsigned char data_direction; + unsigned char pad[3]; compat_int_t quiet; compat_int_t timeout; compat_caddr_t reserved[1]; diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 8f9d61e0729f..893e29624c16 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -3265,8 +3265,10 @@ static int nvme_dev_open(struct inode *inode, struct file *file) } nvme_get_ctrl(ctrl); - if (!try_module_get(ctrl->ops->module)) + if (!try_module_get(ctrl->ops->module)) { + nvme_put_ctrl(ctrl); return -EINVAL; + } file->private_data = ctrl; return 0; |