CVE-2022-49720 block: Fix handling of offline queues in blk_mq_alloc_request_hctx()

In the Linux kernel, the following vulnerability has been resolved: block: Fix handling of offline queues in blkmqallocrequesthctx This patch prevents that test nvme/004 triggers the following: UBSAN: array-index-out-of-bounds in block/blk-mq.h:135:9 index 512 is out of range for type 'long...

CVE-2022-49720 block: Fix handling of offline queues in blk_mq_alloc_request_hctx()

In the Linux kernel, the following vulnerability has been resolved: block: Fix handling of offline queues in blkmqallocrequesthctx This patch prevents that test nvme/004 triggers the following: UBSAN: array-index-out-of-bounds in block/blk-mq.h:135:9 index 512 is out of range for type 'long...

CVE-2022-49708 ext4: fix bug_on ext4_mb_use_inode_pa

In the Linux kernel, the following vulnerability has been resolved: ext4: fix bugon ext4mbuseinodepa Hulk Robot reported a BUGON: ================================================================== kernel BUG at fs/ext4/mballoc.c:3211! ... RIP: 0010:ext4mbmarkdiskspaceused.cold+0x85/0x136f ... Cal...

CVE-2022-49694 block: disable the elevator int del_gendisk

In the Linux kernel, the following vulnerability has been resolved: block: disable the elevator int delgendisk The elevator is only used for file system requests, which are stopped in delgendisk. Move disabling the elevator and freeing the scheduler tags to the end of delgendisk instead of doing...

CVE-2022-49550 fs/ntfs3: provide block_invalidate_folio to fix memory leak

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: provide blockinvalidatefolio to fix memory leak The ntfs3 filesystem lacks the 'invalidatefolio' method and it causes memory leak. If you write to the filesystem and then unmount it, the cached written data are not free...

CVE-2022-49406

In the Linux kernel, the following vulnerability has been resolved: block: Fix potential deadlock in blkiarangesysfsshow When being read, a sysfs attribute is already protected against removal with the kobject node active reference counter. As a result, in blkiarangesysfsshow, there is no need to...

CVE-2022-49377

In the Linux kernel, the following vulnerability has been resolved: blk-mq: don't touch -tagset in blkmqgetsqhctx blkmqrunhwqueues could be run when there isn't queued request and after queue is cleaned up, at that time tagset is freed, because tagset lifetime is covered by driver, and often free...

CVE-2022-49363 f2fs: fix to do sanity check on block address in f2fs_do_zero_range()

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on block address in f2fsdozerorange As Yanming reported in bugzilla: https://bugzilla.kernel.org/showbug.cgi?id=215894 I have encountered a bug in F2FS file system in kernel v5.17. I have uploaded the...

CVE-2022-49363

CVE-2022-49363 concerns a vulnerability in the Linux kernel’s F2FS filesystem. Public descriptions and related advisories (Astra Linux, Unity Linux, OSV, NVD, Red Hat, etc.) confirm the root issue: after fuzzing, inode block mappings could become inconsistent with the SIT (Segment Information Tab...

CVE-2022-49363

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on block address in f2fsdozerorange As Yanming reported in bugzilla: https://bugzilla.kernel.org/showbug.cgi?id=215894 I have encountered a bug in F2FS file system in kernel v5.17. I have uploaded the...

CVE-2022-49360

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on totaldatablocks As Yanming reported in bugzilla: https://bugzilla.kernel.org/showbug.cgi?id=215916 The kernel message is shown below: kernel BUG at fs/f2fs/segment.c:2560! Call Trace:...

CVE-2022-49347 ext4: fix bug_on in ext4_writepages

In the Linux kernel, the following vulnerability has been resolved: ext4: fix bugon in ext4writepages we got issue as follows: EXT4-fs error device loop0: ext4mbgeneratebuddy:1141: group 0, block bitmap and bg descriptor inconsistent: 25 vs 31513 free cls ------------ cut here ------------ kernel...

CVE-2022-49318 f2fs: remove WARN_ON in f2fs_is_valid_blkaddr

In the Linux kernel, the following vulnerability has been resolved: f2fs: remove WARNON in f2fsisvalidblkaddr Syzbot triggers two WARNs in f2fsisvalidblkaddr and isbitmapvalid. For example, in f2fsisvalidblkaddr, if type is DATAGENERICENHANCE or DATAGENERICENHANCEREAD, it invokes WARNON if blkadd...

CVE-2022-49300 nbd: fix race between nbd_alloc_config() and module removal

In the Linux kernel, the following vulnerability has been resolved: nbd: fix race between nbdallocconfig and module removal When nbd module is being removing, nbdallocconfig may be called concurrently by nbdgenlconnect, although trymoduleget will return false, but nbdallocconfig doesn't handle it...

CVE-2022-49295 nbd: call genl_unregister_family() first in nbd_cleanup()

In the Linux kernel, the following vulnerability has been resolved: nbd: call genlunregisterfamily first in nbdcleanup Otherwise there may be race between module removal and the handling of netlink command, which can lead to the oops as shown below: BUG: kernel NULL pointer dereference, address:...

CVE-2022-49266

In the Linux kernel, the following vulnerability has been resolved: block: fix rq-qos breakage from skipping rqqosdonebio a647a524a467 "block: don't call rqqosops-donebio if the bio isn't tracked" made bioendio skip rqqosdonebio if BIOTRACKED is not set. While this fixed a potential oops, it also...

CVE-2022-49259

In the Linux kernel, the following vulnerability has been resolved: block: don't delete queue kobject before its children kobjects aren't supposed to be deleted before their child kobjects are deleted. Apparently this is usually benign; however, a WARN will be triggered if one of the child kobjec...

CVE-2022-49179 block, bfq: don't move oom_bfqq

In the Linux kernel, the following vulnerability has been resolved: block, bfq: don't move oombfqq Our test report a UAF: 2073.019181 ================================================================== 2073.019188 BUG: KASAN: use-after-free in bfqputasyncbfqq+0xa0/0x168 2073.019191 Write of size 8...

CVE-2022-49178

CVE-2022-49178 affects the Linux kernel memstick driver (memstick/mspro_block). The issue relates to how read-only devices are handled in the mspro_block code path. Root cause: improper propagation of the read-only state through the block layer during open, leading to a potential reference leak w...

CVE-2022-49174 ext4: fix ext4_mb_mark_bb() with flex_bg with fast_commit

In the Linux kernel, the following vulnerability has been resolved: ext4: fix ext4mbmarkbb with flexbg with fastcommit In case of flexbg feature which is by default enabled, extents for any given inode might span across blocks from two different block group. ext4mbmarkbb only reads the bufferhead...