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

CVE-2022-49033
MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.25 % · percentile 16 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: btrfs: qgroup: fix sleep from invalid context bug in btrfs_qgroup_inherit() Syzkaller reported BUG as follows: BUG: sleeping function called from invalid context at include/linux/sched/mm.h:274 Call Trace: <TASK> dump_stack_lvl+0xcd/0x134 __might_resched.cold+0x222/0x26b kmem_cache_alloc+0x2e7/0x3c0 update_qgroup_limit_item+0xe1/0x390 btrfs_qgroup_inherit+0x147b/0x1ee0 create_subvol+0x4eb/0x1710 btrfs_mksubvol+0xfe5/0x13f0 __btrfs_ioctl_snap_create+0x2b0/0x430 btrfs_ioctl_snap_create_v2+0x25a/0x520 btrfs_ioctl+0x2a1c/0x5ce0 __x64_sys_ioctl+0x193/0x200 do_syscall_64+0x35/0x80 Fix this by calling qgroup_dirty() on @dstqgroup, and update limit item in btrfs_run_qgroups() later outside of the spinlock context.

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected e8c8541ac379709db8d2339e1cb720469fc2cd8f < 89840b12c8fad7200eb6478525c13261512c01be ; affected e8c8541ac379709db8d2339e1cb720469fc2cd8f < 3c98e91be6aea4c7acf09da6eb0c107ea9186bb5 ; affected e8c8541ac379709db8d2339e1cb720469fc2cd8f < f4b930a1602b05e77fee31f9616599b25e910a86 ; affected e8c8541ac379709db8d2339e1cb720469fc2cd8f < 8eb912af525042a7365295eb62f6d5270c2a6462 ; affected e8c8541ac379709db8d2339e1cb720469fc2cd8f < 01d7c41eac9129fba80d8aed0060caab4a7dbe09 ; affected e8c8541ac379709db8d2339e1cb720469fc2cd8f < 044da1a371a0da579e805e89c96865f62d8f6f69
Linux · Linuxaffected 4.1 ; unaffected 0 < 4.1 ; unaffected 4.9.335 ≤ 4.9.* ; unaffected 4.14.301 ≤ 4.14.* ; unaffected 4.19.268 ≤ 4.19.* ; unaffected 5.4.226 ≤ 5.4.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD