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
2026-05-15T11:54:49.557666595Z
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

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
4.1.0
Fixed
4.9.335
Type
ECOSYSTEM
Events
Introduced
4.10.0
Fixed
4.14.301
Type
ECOSYSTEM
Events
Introduced
4.15.0
Fixed
4.19.268
Type
ECOSYSTEM
Events
Introduced
4.20.0
Fixed
5.4.226
Type
ECOSYSTEM
Events
Introduced
5.5.0
Fixed
5.10.158
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.82
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.0.12

Database specific

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