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CVE-2026-99177

KVM: SEV: Fix page dirtying in sev_gmem_post_populate()

N/A
Published: October 28, 2026 at 10:35 AM UTC
Updated: October 28, 2026 at 11:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Fix page dirtying in sev_gmem_post_populate() set_page_dirty() requires that the caller holds some kind of lock to ensure that the page's mapping does not concurrently go away. That is not the case for a random page we got from get_user_pages_fast(), so use set_page_dirty_lock(). [sean: tag for stable]

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
90%
7.297cd21d57e9bd2da79845178d9250cfd19289cd4
Vendor states this is fixed in 7.2.13 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Source: cverecord
https://git.kernel.org/stable/c/184382f9852d433af21de96c334ecf43b8414ed8
Source: cverecord
https://git.kernel.org/stable/c/97818b2fa7082e940ddd36dab12a68615300e798

Quick Info

StatusRECEIVED

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