CVE-2026-46185
smb/client: fix out-of-bounds read in symlink_data()
CVSS Score
9.1
EPSS Score
0.0%
EPSS Percentile
15th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | May 28, 2026 |
| Last Updated | Jun 1, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
76894f3e2f71177747b8b4763fb180e800279585 < 2be11faf79e49fb8250a181ff0b4d2b2f084af83 76894f3e2f71177747b8b4763fb180e800279585 < ef6495d4df6e7af8f3de67e65150881c880f696c 76894f3e2f71177747b8b4763fb180e800279585 < 15dc0a4de743a1aaa7b859b3aea79f08c695396c 76894f3e2f71177747b8b4763fb180e800279585 < b8c8a704f0bc133deb171f6aeb6f3a684203e212 76894f3e2f71177747b8b4763fb180e800279585 < b9561402489d41149f63e001a74384863b7b30a6 76894f3e2f71177747b8b4763fb180e800279585 < d62b8d236fab503c6fec1d3e9a38bea71feaca20 2d046892a493d9760c35fdaefc3017f27f91b621 6.0.16 < 6.1
Linux / Linux
6.1
References
git.kernel.org: https://git.kernel.org/stable/c/2be11faf79e49fb8250a181ff0b4d2b2f084af83 git.kernel.org: https://git.kernel.org/stable/c/ef6495d4df6e7af8f3de67e65150881c880f696c git.kernel.org: https://git.kernel.org/stable/c/15dc0a4de743a1aaa7b859b3aea79f08c695396c git.kernel.org: https://git.kernel.org/stable/c/b8c8a704f0bc133deb171f6aeb6f3a684203e212 git.kernel.org: https://git.kernel.org/stable/c/b9561402489d41149f63e001a74384863b7b30a6 git.kernel.org: https://git.kernel.org/stable/c/d62b8d236fab503c6fec1d3e9a38bea71feaca20