CVE-2026-46185
CRITICALsmb/client: fix out-of-bounds read in symlink_data()
Title source: cnaDescription
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.
References (6)
Core 6
Core References
Scores
CVSS v3
9.1
EPSS
0.0052
EPSS Percentile
39.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Details
CWE
CWE-125
Status
published
Products (19)
Linux/Linux
< 6.1
Linux/Linux
2d046892a493d9760c35fdaefc3017f27f91b621
Linux/Linux
6.0.16 - 6.1
Linux/Linux
6.1
Linux/Linux
6.1.175 - 6.1.*
Linux/Linux
6.12.88 - 6.12.*
Linux/Linux
6.18.30 - 6.18.*
Linux/Linux
6.6.140 - 6.6.*
Linux/Linux
7.0.7 - 7.0.*
Linux/Linux
7.1
... and 9 more
Published
May 28, 2026
Tracked Since
May 28, 2026