CVE-2026-46185

Name	CVE-2026-46185
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	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-4665-1, DLA-4671-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
linux (PTS)	bullseye	5.10.223-1	fixed
	bullseye (security)	5.10.259-1	fixed
	bookworm	6.1.170-3	vulnerable
	bookworm (security)	6.1.176-1	fixed
	trixie	6.12.86-1	vulnerable
	trixie (security)	6.12.95-1	fixed
	forky	7.0.13-1	fixed
	sid	7.1.3-1	fixed
linux-6.1 (PTS)	bullseye (security)	6.1.176-1~deb11u1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin
linux	source	bullseye	(not affected)
linux	source	bookworm	6.1.176-1	DLA-4665-1
linux	source	trixie	6.12.88-1
linux	source	(unstable)	7.0.7-1
linux-6.1	source	bullseye	6.1.176-1~deb11u1	DLA-4671-1

[bullseye] - linux <not-affected> (Vulnerable code not present)
https://git.kernel.org/linus/d62b8d236fab503c6fec1d3e9a38bea71feaca20 (7.1-rc3)