CVE-2026-46185
9.1 CRITICALIn the Linux kernel, the following vulnerability has been resolved: smb/client: fix out-of-bounds read in symlink_data() Since smb2_che...
Published: 2026-05-28 · Last updated: 2026-06-11
Severity and scoring
- CVSS
- 9.1 CRITICAL
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- CWE
- CWE-125
Affected products
| Vendor | Product |
|---|---|
| linux | linux_kernel |
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.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-46185
- [Patch]https://git.kernel.org/stable/c/15dc0a4de743a1aaa7b859b3aea79f08c695396c
- [Patch]https://git.kernel.org/stable/c/2be11faf79e49fb8250a181ff0b4d2b2f084af83
- [Patch]https://git.kernel.org/stable/c/b8c8a704f0bc133deb171f6aeb6f3a684203e212
- [Patch]https://git.kernel.org/stable/c/b9561402489d41149f63e001a74384863b7b30a6
- [Patch]https://git.kernel.org/stable/c/d62b8d236fab503c6fec1d3e9a38bea71feaca20
- [Patch]https://git.kernel.org/stable/c/ef6495d4df6e7af8f3de67e65150881c880f696c
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