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CVE-2026-98871

Unknown

Last modified

CVE-2026-98871 is a vulnerability of currently unknown severity. 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..

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.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 7364a6fbca45f826952ea932699fb2171d06ee73, < 8e7e06ee7c2938ee3fa31a61cc5289a45c8c13f1; >= 7364a6fbca45f826952ea932699fb2171d06ee73, < ffd3a3df92be697eb78118a146c6a5d5e6c1f724; >= 7364a6fbca45f826952ea932699fb2171d06ee73, < 364f3841bc22c72b6e2cb72a1e3c91c9c8fc1ef4; >= 7364a6fbca45f826952ea932699fb2171d06ee73, < b0e7ec0dab242c5e480121ba12400d0513e37ca2
LinuxLinux6.9

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-98871?
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.
How severe is CVE-2026-98871?
Severity scoring for CVE-2026-98871 is pending analysis.
How do I fix CVE-2026-98871?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST