CVE-2022-49053 (GCVE-0-2022-49053)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:54 – Updated: 2025-05-21 08:44
VLAI?
Title
scsi: target: tcmu: Fix possible page UAF
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: target: tcmu: Fix possible page UAF tcmu_try_get_data_page() looks up pages under cmdr_lock, but it does not take refcount properly and just returns page pointer. When tcmu_try_get_data_page() returns, the returned page may have been freed by tcmu_blocks_release(). We need to get_page() under cmdr_lock to avoid concurrent tcmu_blocks_release().
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: 141685a39151aea95eb56562d2953e919c6c73da , < d7c5d79e50be6e06b669141e3db1f977a0dd4e8e (git)
Affected: 141685a39151aea95eb56562d2953e919c6c73da , < e3e0e067d5b34e4a68e3cc55f8eebc413f56f8ed (git)
Affected: 141685a39151aea95eb56562d2953e919c6c73da , < fb7a5115422fbd6a4d505e8844f1ef5529f10489 (git)
Affected: 141685a39151aea95eb56562d2953e919c6c73da , < aec36b98a1bbaa84bfd8299a306e4c12314af626 (git)
Affected: 141685a39151aea95eb56562d2953e919c6c73da , < b7f3b5d70c834f49f7d87a2f2ed1c6284d9a0322 (git)
Affected: 141685a39151aea95eb56562d2953e919c6c73da , < a9564d84ed9f6ee71017d062d0d2182154294a4b (git)
Affected: 141685a39151aea95eb56562d2953e919c6c73da , < a6968f7a367f128d120447360734344d5a3d5336 (git)
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    Linux Linux Affected: 4.12
Unaffected: 0 , < 4.12 (semver)
Unaffected: 4.14.276 , ≤ 4.14.* (semver)
Unaffected: 4.19.239 , ≤ 4.19.* (semver)
Unaffected: 5.4.190 , ≤ 5.4.* (semver)
Unaffected: 5.10.112 , ≤ 5.10.* (semver)
Unaffected: 5.15.35 , ≤ 5.15.* (semver)
Unaffected: 5.17.4 , ≤ 5.17.* (semver)
Unaffected: 5.18 , ≤ * (original_commit_for_fix)
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Sightings

Author Source Type Date

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.