Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: replace hardcoded hdr2_len with offsetof() in smb2_calc_max_out_buf_len() After this commit (e2b76ab8b5c9 "ksmbd: add support for read compound"), response buffer management was changed to use dynamic iov array. In the new design, smb2_calc_max_out_buf_len() expects the second argument (hdr2_len) to be the offset of ->Buffer field in the response structure, not a hardcoded magic number. Fix the remaining call sites to use the correct offsetof() value.
Product status
f2283680a80571ca82d710bc6ecd8f8beac67d63 (git) before 70b4c414889492c522b6e4331562360f49be2361
9f297df20d93411c0b4ddad7f88ba04a7cd36e77 (git) before 9a7166f0ef8cbb7bb48dd05e2471d995566003f5
e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d (git) before c3a89e3ec1ccf64fa6a34e391e1581ebbcba8683
e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d (git) before 6aef1765d6807e0f027cd87f6ac973eb0879a46d
e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d (git) before 80824c7e527b70cf9039534e60aff592e8f209d1
e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d (git) before 4cb537ae4f37d7d0f617815ed4bed7173fb50861
e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d (git) before 0e55f63dd08f09651d39e1b709a91705a8a0ddcb
6.6
Any version before 6.6
5.15.203 (semver)
6.1.168 (semver)
6.6.131 (semver)
6.12.80 (semver)
6.18.21 (semver)
6.19.11 (semver)
7.0 (original_commit_for_fix)
References
git.kernel.org/...c/70b4c414889492c522b6e4331562360f49be2361
git.kernel.org/...c/9a7166f0ef8cbb7bb48dd05e2471d995566003f5
git.kernel.org/...c/c3a89e3ec1ccf64fa6a34e391e1581ebbcba8683
git.kernel.org/...c/6aef1765d6807e0f027cd87f6ac973eb0879a46d
git.kernel.org/...c/80824c7e527b70cf9039534e60aff592e8f209d1
git.kernel.org/...c/4cb537ae4f37d7d0f617815ed4bed7173fb50861
git.kernel.org/...c/0e55f63dd08f09651d39e1b709a91705a8a0ddcb