CVE-2022-49168 (GCVE-0-2022-49168)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:55 – Updated: 2026-01-19 12:17
VLAI?
Title
btrfs: do not clean up repair bio if submit fails
Summary
In the Linux kernel, the following vulnerability has been resolved: btrfs: do not clean up repair bio if submit fails The submit helper will always run bio_endio() on the bio if it fails to submit, so cleaning up the bio just leads to a variety of use-after-free and NULL pointer dereference bugs because we race with the endio function that is cleaning up the bio. Instead just return BLK_STS_OK as the repair function has to continue to process the rest of the pages, and the endio for the repair bio will do the appropriate cleanup for the page that it was given.
Severity ?
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 6c387ab20db15f2bd448f7c508e2638101b16ea1 , < e7e1d15d2bd8c373cf621614ddd17971a2132713 (git)
Affected: 6c387ab20db15f2bd448f7c508e2638101b16ea1 , < 7170875083254b51fcc5d67f96640977083f481e (git)
Affected: 6c387ab20db15f2bd448f7c508e2638101b16ea1 , < e76c78c48902dae6fa612749f59162bca0a79e0b (git)
Affected: 6c387ab20db15f2bd448f7c508e2638101b16ea1 , < d1cb11fb45ebbb1e7dfe5e9038b32ea72c184b14 (git)
Affected: 6c387ab20db15f2bd448f7c508e2638101b16ea1 , < 8cbc3001a3264d998d6b6db3e23f935c158abd4d (git)
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    Linux Linux Affected: 3.18
Unaffected: 0 , < 3.18 (semver)
Unaffected: 5.10.248 , ≤ 5.10.* (semver)
Unaffected: 5.15.184 , ≤ 5.15.* (semver)
Unaffected: 5.16.19 , ≤ 5.16.* (semver)
Unaffected: 5.17.2 , ≤ 5.17.* (semver)
Unaffected: 5.18 , ≤ * (original_commit_for_fix)
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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.