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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-31677

crypto: af_alg - limit RX SG extraction by receive buffer budget

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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 - limit RX SG extraction by receive buffer budget Make af_alg_get_rsgl() limit each RX scatterlist extraction to the remaining receive buffer budget. af_alg_get_rsgl() currently uses af_alg_readable() only as a gate before extracting data into the RX scatterlist. Limit each extraction to the remaining af_alg_rcvbuf(sk) budget so that receive-side accounting matches the amount of data attached to the request. If skcipher cannot obtain enough RX space for at least one chunk while more data remains to be processed, reject the recvmsg call instead of rounding the request length down to zero.

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

  • e870456d8e7c8d57c059ea479b5aadbb55ff4c3a to < 960c56743988d8ce9ff9b5d770dbeb5f64823a23affected
  • e870456d8e7c8d57c059ea479b5aadbb55ff4c3a to < 7e345de2e69475430af85e09210795d8eb8e719caffected
  • e870456d8e7c8d57c059ea479b5aadbb55ff4c3a to < 9bf3e6ccfdcfe56ae3190d1ae987dacf1cfef4f9affected
  • e870456d8e7c8d57c059ea479b5aadbb55ff4c3a to < 07c6f6ffe29009426f0bd4d3cfbb6308b8ea8453affected
  • e870456d8e7c8d57c059ea479b5aadbb55ff4c3a to < 4a264b2614c73c96666e196bbabe0cead52bdba7affected
  • e870456d8e7c8d57c059ea479b5aadbb55ff4c3a to < 8eceab19eba9dcbfd2a0daec72e1bf48aa100170affected

Linux Linux

Default version status: affected

  • 4.14affected
  • 0 to < 4.14unaffected
  • 6.1.191 to ≤ 6.1.*unaffected
  • 6.6.160 to ≤ 6.6.*unaffected
  • 6.12.83 to ≤ 6.12.*unaffected
  • 6.18.24 to ≤ 6.18.*unaffected
  • 6.19.14 to ≤ 6.19.*unaffected
  • 7.0 to ≤ *unaffected

References