CVE-2022-50490 (GCVE-0-2022-50490)

Vulnerability from cvelistv5 – Published: 2025-10-04 15:43 – Updated: 2025-10-04 15:43
VLAI?
Title
bpf: Propagate error from htab_lock_bucket() to userspace
Summary
In the Linux kernel, the following vulnerability has been resolved: bpf: Propagate error from htab_lock_bucket() to userspace In __htab_map_lookup_and_delete_batch() if htab_lock_bucket() returns -EBUSY, it will go to next bucket. Going to next bucket may not only skip the elements in current bucket silently, but also incur out-of-bound memory access or expose kernel memory to userspace if current bucket_cnt is greater than bucket_size or zero. Fixing it by stopping batch operation and returning -EBUSY when htab_lock_bucket() fails, and the application can retry or skip the busy batch as needed.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 20b6cc34ea74b6a84599c1f8a70f3315b56a1883 , < 0e13425104903970a5ede853082d3bbb4edec6f3 (git)
Affected: 20b6cc34ea74b6a84599c1f8a70f3315b56a1883 , < 6bfee6eb3d6b96ae730a542909dd22b5f9f50d58 (git)
Affected: 20b6cc34ea74b6a84599c1f8a70f3315b56a1883 , < 4f1f39a8f1ce1b24fee6852d7dcd704ce7c4334d (git)
Affected: 20b6cc34ea74b6a84599c1f8a70f3315b56a1883 , < 66a7a92e4d0d091e79148a4c6ec15d1da65f4280 (git)
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    Linux Linux Affected: 5.11
Unaffected: 0 , < 5.11 (semver)
Unaffected: 5.15.75 , ≤ 5.15.* (semver)
Unaffected: 5.19.17 , ≤ 5.19.* (semver)
Unaffected: 6.0.3 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (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.
  • 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.