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.
Product status
e870456d8e7c8d57c059ea479b5aadbb55ff4c3a (git) before 9bf3e6ccfdcfe56ae3190d1ae987dacf1cfef4f9
e870456d8e7c8d57c059ea479b5aadbb55ff4c3a (git) before 07c6f6ffe29009426f0bd4d3cfbb6308b8ea8453
e870456d8e7c8d57c059ea479b5aadbb55ff4c3a (git) before 4a264b2614c73c96666e196bbabe0cead52bdba7
e870456d8e7c8d57c059ea479b5aadbb55ff4c3a (git) before 8eceab19eba9dcbfd2a0daec72e1bf48aa100170
4.14
Any version before 4.14
6.12.83 (semver)
6.18.24 (semver)
6.19.14 (semver)
7.0 (original_commit_for_fix)
References
git.kernel.org/...c/9bf3e6ccfdcfe56ae3190d1ae987dacf1cfef4f9
git.kernel.org/...c/07c6f6ffe29009426f0bd4d3cfbb6308b8ea8453
git.kernel.org/...c/4a264b2614c73c96666e196bbabe0cead52bdba7
git.kernel.org/...c/8eceab19eba9dcbfd2a0daec72e1bf48aa100170