CVE-2018-16884

Name	CVE-2018-16884
Description	A flaw was found in the Linux kernel's NFS41+ subsystem. NFS41+ shares mounted in different network namespaces at the same time can make bc_svc_process() use wrong back-channel IDs and cause a use-after-free vulnerability. Thus a malicious container user can cause a host kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-1731-1, DLA-1771-1

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)	5.10.226-1	fixed
	bookworm	6.1.115-1	fixed
	bookworm (security)	6.1.112-1	fixed
	trixie	6.11.9-1	fixed
	sid	6.11.10-1	fixed

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

Package	Type	Release	Fixed Version	Origin
linux	source	jessie	3.16.64-1	DLA-1731-1
linux	source	stretch	4.9.161-1
linux	source	(unstable)	4.19.16-1
linux-4.9	source	jessie	4.9.168-1~deb8u1	DLA-1771-1

https://patchwork.kernel.org/cover/10733767/
https://patchwork.kernel.org/patch/10733769/
https://bugzilla.redhat.com/show_bug.cgi?id=1660375