CVE-2024-49855 (GCVE-0-2024-49855)

Vulnerability from cvelistv5 – Published: 2024-10-21 12:18 – Updated: 2025-11-03 22:22
VLAI?
Title
nbd: fix race between timeout and normal completion
Summary
In the Linux kernel, the following vulnerability has been resolved: nbd: fix race between timeout and normal completion If request timetout is handled by nbd_requeue_cmd(), normal completion has to be stopped for avoiding to complete this requeued request, other use-after-free can be triggered. Fix the race by clearing NBD_CMD_INFLIGHT in nbd_requeue_cmd(), meantime make sure that cmd->lock is grabbed for clearing the flag and the requeue.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 2895f1831e911ca87d4efdf43e35eb72a0c7e66e , < 9c25faf72d780a9c71081710cd48759d61ff6e9b (git)
Affected: 2895f1831e911ca87d4efdf43e35eb72a0c7e66e , < 6e73b946a379a1dfbb62626af93843bdfb53753d (git)
Affected: 2895f1831e911ca87d4efdf43e35eb72a0c7e66e , < 5236ada8ebbd9e7461f17477357582f5be4f46f7 (git)
Affected: 2895f1831e911ca87d4efdf43e35eb72a0c7e66e , < 9a74c3e6c0d686c26ba2aab66d15ddb89dc139cc (git)
Affected: 2895f1831e911ca87d4efdf43e35eb72a0c7e66e , < c9ea57c91f03bcad415e1a20113bdb2077bcf990 (git)
Affected: cdf62c535a9bfd5ff0eef4b91669da39d8abc0c3 (git)
Affected: 5171ef20bae852ff38f4cfdb368bcdcc744776d0 (git)
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    Linux Linux Affected: 5.19
Unaffected: 0 , < 5.19 (semver)
Unaffected: 6.1.113 , ≤ 6.1.* (semver)
Unaffected: 6.6.54 , ≤ 6.6.* (semver)
Unaffected: 6.10.13 , ≤ 6.10.* (semver)
Unaffected: 6.11.2 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
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  • 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.
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  • 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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