CVE-2022-48740 (GCVE-0-2022-48740)

Vulnerability from cvelistv5 – Published: 2024-06-20 11:13 – Updated: 2026-05-11 18:46
VLAI?
Title
selinux: fix double free of cond_list on error paths
Summary
In the Linux kernel, the following vulnerability has been resolved: selinux: fix double free of cond_list on error paths On error path from cond_read_list() and duplicate_policydb_cond_list() the cond_list_destroy() gets called a second time in caller functions, resulting in NULL pointer deref. Fix this by resetting the cond_list_len to 0 in cond_list_destroy(), making subsequent calls a noop. Also consistently reset the cond_list pointer to NULL after freeing. [PM: fix line lengths in the description]
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 60abd3181db29ea81742106cc0ac2e27fd05b418 , < f446089a268c8fc6908488e991d28a9b936293db (git)
Affected: 60abd3181db29ea81742106cc0ac2e27fd05b418 , < 70caa32e6d81f45f0702070c0e4dfe945e92fbd7 (git)
Affected: 60abd3181db29ea81742106cc0ac2e27fd05b418 , < 7ed9cbf7ac0d4ed86b356e1b944304ae9ee450d4 (git)
Affected: 60abd3181db29ea81742106cc0ac2e27fd05b418 , < 186edf7e368c40d06cf727a1ad14698ea67b74ad (git)
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Linux Linux Affected: 5.7
Unaffected: 0 , < 5.7 (semver)
Unaffected: 5.10.99 , ≤ 5.10.* (semver)
Unaffected: 5.15.22 , ≤ 5.15.* (semver)
Unaffected: 5.16.8 , ≤ 5.16.* (semver)
Unaffected: 5.17 , ≤ * (original_commit_for_fix)
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}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.