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CVE PROGRAM SOURCE RECORDUnscored

CVE-2025-40022

crypto: af_alg - Fix incorrect boolean values in af_alg_ctx

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: af_alg - Fix incorrect boolean values in af_alg_ctx Commit 1b34cbbf4f01 ("crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg") changed some fields from bool to 1-bit bitfields of type u32. However, some assignments to these fields, specifically 'more' and 'merge', assign values greater than 1. These relied on C's implicit conversion to bool, such that zero becomes false and nonzero becomes true. With a 1-bit bitfields of type u32 instead, mod 2 of the value is taken instead, resulting in 0 being assigned in some cases when 1 was intended. Fix this by restoring the bool type.

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

  • 0f28c4adbc4a97437874c9b669fd7958a8c6d6ce to < 3a21698ace915a445bce2d0dcfc84b6d2199baf7affected
  • e4c1ec11132ec466f7362a95f36a506ce4dc08c9 to < d382d6daf0184490f366562469a5673f65ee2662affected
  • 1f323a48e9b5ebfe6dc7d130fdf5c3c0e92a07c8 to < 54506c6335690f4ef1b9f154e34f5a604c72c1edaffected
  • 7c4491b5644e3a3708f3dbd7591be0a570135b84 to < 8703940bd30b5ad94408d28d7192db2491cd3592affected
  • 9aee87da5572b3a14075f501752e209801160d3d to < 316b090c2fee964c307a634fecc7df269664b158affected
  • 45bcf60fe49b37daab1acee57b27211ad1574042 to < fbe96bd25423e61273d8831e995260b429d850b6affected
  • 1b34cbbf4f011a121ef7b2d7d6e6920a036d5285 to < d0ca0df179c4b21e2a6c4a4fb637aa8fa14575cbaffected

Linux Linux

Default version status: unaffected

  • 6.1.154 to < 6.1.155affected
  • 6.6.108 to < 6.6.109affected
  • 6.12.49 to < 6.12.50affected
  • 6.16.9 to < 6.16.10affected

References