CVE-2026-98727

Name	CVE-2026-98727
Description	In the Linux kernel, the following vulnerability has been resolved: nvme-multipath: set BLK_FEAT_ZONED only after the zone info is known The namespace head is marked zoned at allocation time based only on the command set identifier. If the zone info query reports a zero zone size, the path namespace is registered without zoned limits while the head still advertises the zoned capability with a zone size of zero, and reporting zones or writing to the head then shifts by ilog2(0). Drop the zoned feature from the head allocation and let the head limits refresh stack it in from the path namespace instead.
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-4850-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
linux (PTS)	bookworm	6.1.176-1	fixed
	bookworm (security)	6.1.190-1	fixed
	trixie	6.12.107-1	vulnerable
	trixie (security)	6.12.115-2	fixed
	forky	7.2.15-1	fixed
	sid	7.3.3-1	fixed
linux-6.12 (PTS)	bookworm (security)	6.12.113-1~deb12u1	fixed

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

Package	Type	Release	Fixed Version	Origin
linux	source	bookworm	(not affected)
linux	source	trixie	6.12.113-1
linux	source	(unstable)	7.2.10-1
linux-6.12	source	bookworm	6.12.113-1~deb12u1	DLA-4850-1

[bookworm] - linux <not-affected> (Vulnerable code not present)
https://git.kernel.org/linus/4a5e49ba0abb8b4328d6318c9aef0c0121f95507 (7.3-rc6)