CVE-2022-49033

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Source
https://cve.org/CVERecord?id=CVE-2022-49033
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49033.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-49033
Downstream
Related
Published
2024-10-21T20:06:36.566Z
Modified
2026-03-20T12:22:07.771853Z
Summary
btrfs: qgroup: fix sleep from invalid context bug in btrfs_qgroup_inherit()
Details

In the Linux kernel, the following vulnerability has been resolved:

btrfs: qgroup: fix sleep from invalid context bug in btrfsqgroupinherit()

Syzkaller reported BUG as follows:

BUG: sleeping function called from invalid context at include/linux/sched/mm.h:274 Call Trace: <TASK> dumpstacklvl+0xcd/0x134 __mightresched.cold+0x222/0x26b kmemcachealloc+0x2e7/0x3c0 updateqgrouplimititem+0xe1/0x390 btrfsqgroupinherit+0x147b/0x1ee0 createsubvol+0x4eb/0x1710 btrfsmksubvol+0xfe5/0x13f0 __btrfsioctlsnapcreate+0x2b0/0x430 btrfsioctlsnapcreatev2+0x25a/0x520 btrfsioctl+0x2a1c/0x5ce0 __x64sysioctl+0x193/0x200 dosyscall64+0x35/0x80

Fix this by calling qgroupdirty() on @dstqgroup, and update limit item in btrfsrun_qgroups() later outside of the spinlock context.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49033.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
e8c8541ac379709db8d2339e1cb720469fc2cd8f
Fixed
89840b12c8fad7200eb6478525c13261512c01be
Fixed
3c98e91be6aea4c7acf09da6eb0c107ea9186bb5
Fixed
f4b930a1602b05e77fee31f9616599b25e910a86
Fixed
8eb912af525042a7365295eb62f6d5270c2a6462
Fixed
01d7c41eac9129fba80d8aed0060caab4a7dbe09
Fixed
044da1a371a0da579e805e89c96865f62d8f6f69
Fixed
588ae4fdd8b11788a797776b10d6c44ae12bc133
Fixed
f7e942b5bb35d8e3af54053d19a6bf04143a3955

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49033.json"