CVE-2026-46185

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.

CVSS 3.1

9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

EPSS

0.5% chance of exploitation in the next 30 days; higher than 44% of CVEs (scores of 2026-10-25)

CWE

CWE-125

Published

2026-05-28

Modified

2026-10-19

Record from

the NVD, synced 2026-10-21

Affected

• linux:linux_kernel

References

• https://git.kernel.org/stable/c/15dc0a4de743a1aaa7b859b3aea79f08c695396c
• https://git.kernel.org/stable/c/2be11faf79e49fb8250a181ff0b4d2b2f084af83
• https://git.kernel.org/stable/c/b8c8a704f0bc133deb171f6aeb6f3a684203e212
• https://git.kernel.org/stable/c/b9561402489d41149f63e001a74384863b7b30a6
• https://git.kernel.org/stable/c/d62b8d236fab503c6fec1d3e9a38bea71feaca20

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