CVE-2021-46908 (GCVE-0-2021-46908)

Vulnerability from cvelistv5 – Published: 2024-02-27 06:53 – Updated: 2025-05-04 07:00
VLAI?
Title
bpf: Use correct permission flag for mixed signed bounds arithmetic
Summary
In the Linux kernel, the following vulnerability has been resolved: bpf: Use correct permission flag for mixed signed bounds arithmetic We forbid adding unknown scalars with mixed signed bounds due to the spectre v1 masking mitigation. Hence this also needs bypass_spec_v1 flag instead of allow_ptr_leaks.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 2c78ee898d8f10ae6fb2fa23a3fbaec96b1b7366 , < 4f3ff11204eac0ee23acf64deecb3bad7b0db0c6 (git)
Affected: 2c78ee898d8f10ae6fb2fa23a3fbaec96b1b7366 , < 4ccdc6c6cae38b91c871293fb0ed8c6845a61b51 (git)
Affected: 2c78ee898d8f10ae6fb2fa23a3fbaec96b1b7366 , < 9601148392520e2e134936e76788fc2a6371e7be (git)
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    Linux Linux Affected: 5.8
Unaffected: 0 , < 5.8 (semver)
Unaffected: 5.10.32 , ≤ 5.10.* (semver)
Unaffected: 5.11.16 , ≤ 5.11.* (semver)
Unaffected: 5.12 , ≤ * (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.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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