CVE-2022-42703

MediumCVSS 5.5/10Last modified Oct 14, 2026

Description

mm/rmap.c in the Linux kernel before 5.19.7 has a use-after-free related to leaf anon_vma double reuse.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-416

Affected software

Vendor	Product	Versions
n/a	n/a	n/a
Siemens	SIMATIC S7-1500 TM MFP - GNU/Linux subsystem	< V1.1

References

https://bugs.chromium.org/p/project-zero/issues/detail?id=2351Exploit, Mailing List, Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.7Mailing List, Patch, Vendor Advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2555283eb40df89945557273121e9393ef9b542bMailing List, Patch, Vendor Advisory
https://github.com/torvalds/linux/commit/2555283eb40df89945557273121e9393ef9b542bPatch, Third Party Advisory
https://googleprojectzero.blogspot.com/2022/12/exploiting-CVE-2022-42703-bringing-back-the-stack-attack.htmlExploit, Technical Description, Third Party Advisory
https://bugs.chromium.org/p/project-zero/issues/detail?id=2351Exploit, Mailing List, Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.7Mailing List, Patch, Vendor Advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2555283eb40df89945557273121e9393ef9b542bMailing List, Patch, Vendor Advisory
https://github.com/torvalds/linux/commit/2555283eb40df89945557273121e9393ef9b542bPatch, Third Party Advisory
https://googleprojectzero.blogspot.com/2022/12/exploiting-CVE-2022-42703-bringing-back-the-stack-attack.htmlExploit, Technical Description, Third Party Advisory
https://cert-portal.siemens.com/productcert/html/ssa-794697.html
https://cert-portal.siemens.com/productcert/html/ssa-831302.html

Timeline

Published: Oct 9, 2022
Last modified: Oct 14, 2026
NVD status: Modified

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