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CVE PROGRAM SOURCE RECORD7.1 High

CVE-2021-46908

bpf: Use correct permission flag for mixed signed bounds arithmetic

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Status
Published
Published
Updated
Assigning organization
Linux

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 2c78ee898d8f10ae6fb2fa23a3fbaec96b1b7366 to < 4f3ff11204eac0ee23acf64deecb3bad7b0db0c6affected
  • 2c78ee898d8f10ae6fb2fa23a3fbaec96b1b7366 to < 4ccdc6c6cae38b91c871293fb0ed8c6845a61b51affected
  • 2c78ee898d8f10ae6fb2fa23a3fbaec96b1b7366 to < 9601148392520e2e134936e76788fc2a6371e7beaffected

Linux Linux

Default version status: affected

  • 5.8affected
  • 0 to < 5.8unaffected
  • 5.10.32 to ≤ 5.10.*unaffected
  • 5.11.16 to ≤ 5.11.*unaffected
  • 5.12 to ≤ *unaffected

References