Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Fix possible deadlock in SEV init failure path __sev_platform_init_handle_init_ex_path() calls rmp_mark_pages_firmware() with locked=false while the parent function of init_ex_path already acquired the sev_cmd_mutex. In the case of an RMPUPDATE failure for any page after the first, the cleanup path would invoke reclaim pages which would result in a deadlock in sev_do_cmd. Pass locked=true to honor the lock status of the parent function.
References
- https://git.kernel.org/stable/c/364f3841bc22c72b6e2cb72a1e3c91c9c8fc1ef4
- https://git.kernel.org/stable/c/8e7e06ee7c2938ee3fa31a61cc5289a45c8c13f1
- https://git.kernel.org/stable/c/b0e7ec0dab242c5e480121ba12400d0513e37ca2
- https://git.kernel.org/stable/c/ffd3a3df92be697eb78118a146c6a5d5e6c1f724
FAQ
What is CVE-2026-98871?
CVE-2026-98871 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Fix possible deadlock in SEV init failure path __sev_platform_init_handle_init_ex_path() calls rmp_mark_pages_firmwa...
How severe is CVE-2026-98871?
CVSS scoring is not yet available for CVE-2026-98871. Check NVD for updates.
Is there a patch for CVE-2026-98871?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.