CVE-2026-31677 | BDVDB-2026-329039 Detail
LinuxLinux
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.
Impact#
No impact statement in the source data.
Weaknesses#
No weakness recorded in the source data.
References#
- https://git.kernel.org/stable/c/960c56743988d8ce9ff9b5d770dbeb5f64823a23
- https://git.kernel.org/stable/c/7e345de2e69475430af85e09210795d8eb8e719c
- https://git.kernel.org/stable/c/9bf3e6ccfdcfe56ae3190d1ae987dacf1cfef4f9
- https://git.kernel.org/stable/c/07c6f6ffe29009426f0bd4d3cfbb6308b8ea8453
- https://git.kernel.org/stable/c/4a264b2614c73c96666e196bbabe0cead52bdba7
- https://git.kernel.org/stable/c/8eceab19eba9dcbfd2a0daec72e1bf48aa100170
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.