CVE-2025-38653

Name	CVE-2025-38653
Description	In the Linux kernel, the following vulnerability has been resolved: proc: use the same treatment to check proc_lseek as ones for proc_read_iter et.al Check pde->proc_ops->proc_lseek directly may cause UAF in rmmod scenario. It's a gap in proc_reg_open() after commit 654b33ada4ab("proc: fix UAF in proc_get_inode()"). Followed by AI Viro's suggestion, fix it in same manner.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

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)	5.10.237-1	fixed
	bookworm	6.1.148-1	fixed
	bookworm (security)	6.1.147-1	vulnerable
	trixie	6.12.43-1	fixed
	trixie (security)	6.12.41-1	vulnerable
	forky, sid	6.16.7-1	fixed

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

Package	Type	Release	Fixed Version
linux	source	bullseye	(not affected)
linux	source	bookworm	6.1.148-1
linux	source	trixie	6.12.43-1
linux	source	(unstable)	6.16.3-1

[bullseye] - linux <not-affected> (Vulnerable code not present)
https://git.kernel.org/linus/ff7ec8dc1b646296f8d94c39339e8d3833d16c05 (6.17-rc1)