High · published May 1, 2024
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().
| Product | Versions | Fixed in |
|---|---|---|
| linux/linux_kernel | ≥ 5.15, < 5.15.159 | 5.15.159 |
| linux/linux_kernel | ≥ 5.16, < 6.1.88 | 6.1.88 |
| linux/linux_kernel | ≥ 6.2, < 6.6.29 | 6.6.29 |
| linux/linux_kernel | ≥ 6.7, < 6.8.8 | 6.8.8 |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |