CVE-2026-23112

Name	CVE-2026-23112
Description	In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec nvmet_tcp_build_pdu_iovec() could walk past cmd->req.sg when a PDU length or offset exceeds sg_cnt and then use bogus sg->length/offset values, leading to _copy_to_iter() GPF/KASAN. Guard sg_idx, remaining entries, and sg->length/offset before building the bvec.
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-4498-1, DLA-4499-1, DSA-6141-1, DSA-6163-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
linux (PTS)	bullseye	5.10.223-1	vulnerable
	bullseye (security)	5.10.251-1	fixed
	bookworm	6.1.159-1	vulnerable
	bookworm (security)	6.1.164-1	fixed
	trixie	6.12.73-1	fixed
	trixie (security)	6.12.74-2	fixed
	forky	6.19.6-2	fixed
	sid	6.19.8-1	fixed
linux-6.1 (PTS)	bullseye (security)	6.1.164-1~deb11u1	fixed

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

Package	Type	Release	Fixed Version	Origin
linux	source	bullseye	5.10.251-1	DLA-4498-1
linux	source	bookworm	6.1.164-1	DSA-6163-1
linux	source	trixie	6.12.73-1	DSA-6141-1
linux	source	(unstable)	6.18.10-1
linux-6.1	source	bullseye	6.1.164-1~deb11u1	DLA-4499-1

https://git.kernel.org/linus/52a0a98549344ca20ad81a4176d68d28e3c05a5c (6.19)