9.1
Critical
CVE-2026-46185 In the Linux kernel, the following vulnerability has been resolved: smb/client: fix out-of-bounds read in symlink_data()…
Description
In the Linux kernel, the following vulnerability has been resolved: smb/client: fix out-of-bounds read in symlink_data() Since smb2_check_message() returns success without length validation for the symlink error response, in symlink_data() it is possible for iov->iov_len to be smaller than sizeof(struct smb2_err_rsp). If the buffer only contains the base SMB2 header (64 bytes), accessing err->ErrorContextCount (at offset 66) or err->ByteCount later in symlink_data() will cause an out-of-bounds read.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux 7.1 | earliest → < 7.1 | 7.1 |
| Linux 7.0 | earliest → < 7.0.7 | 7.0.7 |
| Linux 6.18 | earliest → < 6.18.30 | 6.18.30 |
| Linux 6.12 | earliest → < 6.12.88 | 6.12.88 |
| Linux 6.6 | earliest → < 6.6.140 | 6.6.140 |
| Linux | 6.1 | 6.1.175 |
| SIMATIC S7-1500 TM MFP - GNU/Linux subsystem | Versions not published |
References
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
Timeline
- Published
- Last modified
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