Vulnerability CVE-2024-26980
Published: 2024-05-01

Description:
In the Linux kernel, the following vulnerability has been resolved:

ksmbd: fix slab-out-of-bounds in smb2_allocate_rsp_buf

If ->ProtocolId is SMB2_TRANSFORM_PROTO_NUM, smb2 request size
validation could be skipped. if request size is smaller than
sizeof(struct smb2_query_info_req), slab-out-of-bounds read can happen in
smb2_allocate_rsp_buf(). This patch allocate response buffer after
decrypting transform request. smb3_decrypt_req() will validate transform
request size and avoid slab-out-of-bound in smb2_allocate_rsp_buf().

 References:
https://git.kernel.org/stable/c/b80ba648714e6d790d69610cf14656be222d0248
https://git.kernel.org/stable/c/3160d9734453a40db248487f8204830879c207f1
https://git.kernel.org/stable/c/0977f89722eceba165700ea384f075143f012085
https://git.kernel.org/stable/c/c119f4ede3fa90a9463f50831761c28f989bfb20
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