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| author | Qianchang Zhao <pioooooooooip@gmail.com> | 2025-10-22 09:27:47 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-10-29 16:10:32 +0300 |
| commit | 867ffd9d67285612da3f0498ca618297f8e41f01 (patch) | |
| tree | 7e142ada3ffa8fc3566b1745268f3795c9b4ba0f /scripts/gdb/linux/utils.py | |
| parent | 1caa8b999d01a7e860a6fa6e639898cb29a50613 (diff) | |
| download | linux-867ffd9d67285612da3f0498ca618297f8e41f01.tar.xz | |
ksmbd: transport_ipc: validate payload size before reading handle
commit 6f40e50ceb99fc8ef37e5c56e2ec1d162733fef0 upstream.
handle_response() dereferences the payload as a 4-byte handle without
verifying that the declared payload size is at least 4 bytes. A malformed
or truncated message from ksmbd.mountd can lead to a 4-byte read past the
declared payload size. Validate the size before dereferencing.
This is a minimal fix to guard the initial handle read.
Fixes: 0626e6641f6b ("cifsd: add server handler for central processing and tranport layers")
Cc: stable@vger.kernel.org
Reported-by: Qianchang Zhao <pioooooooooip@gmail.com>
Signed-off-by: Qianchang Zhao <pioooooooooip@gmail.com>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'scripts/gdb/linux/utils.py')
0 files changed, 0 insertions, 0 deletions