smb: client: fix potential OOB in smb2_dump_detail()

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Validate SMB message with ->check_message() before calling
->calc_smb_size().

This fixes CVE-2023-6610.

Reported-by: j51569436@gmail.com
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218219
Cc; stable@vger.kernel.org
Signed-off-by: Paulo Alcantara <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>

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Paulo Alcantara 2023-12-19 13:10:31 -03:00 • committed by Steve French

parent b50492b05f

commit 567320c46a

2 changed files with 19 additions and 17 deletions

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30

fs/smb/client/smb2misc.c

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6

fs/smb/client/smb2ops.c

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