CVE-2021-46991 (GCVE-0-2021-46991)

Vulnerability from cvelistv5 – Published: 2024-02-28 08:13 – Updated: 2025-05-04 07:01
VLAI?
Title
i40e: Fix use-after-free in i40e_client_subtask()
Summary
In the Linux kernel, the following vulnerability has been resolved: i40e: Fix use-after-free in i40e_client_subtask() Currently the call to i40e_client_del_instance frees the object pf->cinst, however pf->cinst->lan_info is being accessed after the free. Fix this by adding the missing return. Addresses-Coverity: ("Read from pointer after free")
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 7b0b1a6d0ac983ce1928432285d0222d4fb7c38b , < c1322eaeb8af0d8985b5cc5fa759140fa0e57b84 (git)
Affected: 7b0b1a6d0ac983ce1928432285d0222d4fb7c38b , < d718c15a2bf9ae082d5ae4d177fb19ef23cb4132 (git)
Affected: 7b0b1a6d0ac983ce1928432285d0222d4fb7c38b , < 829a713450b8fb127cbabfc1244c1d8179ec5107 (git)
Affected: 7b0b1a6d0ac983ce1928432285d0222d4fb7c38b , < 4ebc10aa7cd17fd9857dedac69600465c9dd16d1 (git)
Affected: 7b0b1a6d0ac983ce1928432285d0222d4fb7c38b , < 1fd5d262e7442192ac7611ff1597a36c5b044323 (git)
Affected: 7b0b1a6d0ac983ce1928432285d0222d4fb7c38b , < 38318f23a7ef86a8b1862e5e8078c4de121960c3 (git)
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    Linux Linux Affected: 4.16
Unaffected: 0 , < 4.16 (semver)
Unaffected: 4.19.191 , ≤ 4.19.* (semver)
Unaffected: 5.4.120 , ≤ 5.4.* (semver)
Unaffected: 5.10.38 , ≤ 5.10.* (semver)
Unaffected: 5.11.22 , ≤ 5.11.* (semver)
Unaffected: 5.12.5 , ≤ 5.12.* (semver)
Unaffected: 5.13 , ≤ * (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.



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