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
linux: linux kernel
References6
- git.kernel.org/stable/c/07c6f6ffe29009426f0bd4d3cfbb6308b8ea8453 Patch
- git.kernel.org/stable/c/4a264b2614c73c96666e196bbabe0cead52bdba7 Patch
- git.kernel.org/stable/c/8eceab19eba9dcbfd2a0daec72e1bf48aa100170 Patch
- git.kernel.org/stable/c/9bf3e6ccfdcfe56ae3190d1ae987dacf1cfef4f9 Patch
- git.kernel.org/stable/c/7e345de2e69475430af85e09210795d8eb8e719c
- git.kernel.org/stable/c/960c56743988d8ce9ff9b5d770dbeb5f64823a23
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 5 · as of 13 November 2026
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