Към съдържанието
Търсене

CVE-2026-46032: Linux

Няма оценка

CVSS

Няма данни

Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

Няма потвърждение

Атакува се

Няма данни

Време до експлоатация

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Triple fault if restore host CR3 fails on nested #VMEXIT If loading L1's CR3 fails on a nested #VMEXIT, nested_svm_vmexit() returns an error code that is ignored by most callers, and continues to run L1 with corrupted state. A sane recovery is not possible in this case, and HW behavior is to cause a shutdown. Inject a triple fault instead, and do not return early from nested_svm_vmexit(). Continue cleaning up the vCPU state (e.g. clear pending exceptions), to handle the failure as gracefully as possible. From the APM: Upon #VMEXIT, the processor performs the following actions in order to return to the host execution context: ... if (illegal host state loaded, or exception while loading host state) shutdown else execute first host instruction following the VMRUN Remove the return value of nested_svm_vmexit(), which is mostly unchecked anyway.

    Засегнати продукти

    • Linux Linux: d82aaef9c88aa27bce63751d6d6329920b1fe8da преди e6318570a9b4e137b0b744832b920b38bb069561; d82aaef9c88aa27bce63751d6d6329920b1fe8da преди 2e661773890e6ba6b16064fad961da3dd311be43; d82aaef9c88aa27bce63751d6d6329920b1fe8da преди af79992ecdb6817970d757fb5d853b8d9b55a0d6; d82aaef9c88aa27bce63751d6d6329920b1fe8da преди b0eb0a8959ac2b808eb11548d002fe1f9b5650cc; d82aaef9c88aa27bce63751d6d6329920b1fe8da преди 9a738cf170a4a2332ea3a15e23ec65b5757fe4a1; d82aaef9c88aa27bce63751d6d6329920b1fe8da преди 5d291ef0585ed880ed4dd71ea1a5965e0a65fb53
    • Linux Linux: 5.9; преди 5.9; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.114 до 6.12.*; 6.18.57 до 6.18.*; 7.0.4 до 7.0.*; от 7.1 нататък

    История

    • 27 май 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-46032: Linux | freedomonline.bg