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(parent: a5806cd) | patch
ksmbd: fix stream write failure
authorNamjae Jeon <linkinjeon@kernel.org>
Thu, 8 May 2025 07:46:11 +0000 (16:46 +0900)
committerSteve French <stfrench@microsoft.com>
Tue, 20 May 2025 01:35:08 +0000 (20:35 -0500)
commit1f4bbedd4e5a69b01cde2cc21d01151ab2d0884f
treee406f678526e736fa173504be8136c15ec854418tree
parenta5806cd506af5a7c19bcd596e4708b5c464bfd21commit | diff
ksmbd: fix stream write failure

If there is no stream data in file, v_len is zero.
So, If position(*pos) is zero, stream write will fail
due to stream write position validation check.
This patch reorganize stream write position validation.

Fixes: 0ca6df4f40cf ("ksmbd: prevent out-of-bounds stream writes by validating *pos")
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
fs/smb/server/vfs.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)