CVE-2023-21102

Name	CVE-2023-21102
Description	In __efi_rt_asm_wrapper of efi-rt-wrapper.S, there is a possible bypass of shadow stack protection due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-260821414References: Upstream kernel
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)

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)	6.1.180-1	fixed
	trixie	6.12.94-1	fixed
	trixie (security)	6.12.107-1	fixed
	forky	7.1.12-1	fixed
	sid	7.1.13-1	fixed

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

Package	Type	Release	Fixed Version
linux	source	buster	(not affected)
linux	source	bullseye	5.10.178-1
linux	source	(unstable)	6.1.8-1

Notes

[buster] - linux <not-affected> (Vulnerable code not present)
https://source.android.com/docs/security/bulletin/2023-05-01
https://git.kernel.org/linus/ff7a167961d1b97e0e205f245f806e564d3505e7 (6.2-rc1)
https://git.kernel.org/linus/18bba1843fc7f264f58c9345d00827d082f9c558 (6.2-rc4)