CVE-2026-99006

HIGHCVSS 7.8/10EPSS 0.16%

Last modified

CVE-2026-99006 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: drm/i915/gem: Prevent overstepping exec array boundary It is possible for eb_relocate_parse_slow() to call kvfree() on entries outside the original exec array during following scenario inside eb_relocate_parse_slow(): 1) eb_copy_relocations() allocates as many as eb->buffer_count copies for exec entries; 2) eb_parse() appends up to two VMAs, right after incrementing eb->buffer_count; 3) cleanup under "out" label uses this incremented buffer_count to release relocation pointers from exec array via kvfree(), not from VMA array. To amend this problem, ensure that relocation cleanup uses the original exec object count, excluding the VMAs appended by the command parser. (cherry picked from commit 2a0158925fb943c7ba8f3216e2734952128defc9). EPSS estimates a 0.16% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: drm/i915/gem: Prevent overstepping exec array boundary It is possible for eb_relocate_parse_slow() to call kvfree() on entries outside the original exec array during following scenario inside eb_relocate_parse_slow(): 1) eb_copy_relocations() allocates as many as eb->buffer_count copies for exec entries; 2) eb_parse() appends up to two VMAs, right after incrementing eb->buffer_count; 3) cleanup under "out" label uses this incremented buffer_count to release relocation pointers from exec array via kvfree(), not from VMA array. To amend this problem, ensure that relocation cleanup uses the original exec object count, excluding the VMAs appended by the command parser. (cherry picked from commit 2a0158925fb943c7ba8f3216e2734952128defc9)

Metrics

EPSS Probability
0.16%

5.5th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

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

VendorProductVersions
LinuxLinux>= 8e4ba491b0ba6fef69270d3c4e48fc517096ef41, < 7bed07cb4daa610cd6d92d9e72a575275a99ed54; >= 8e4ba491b0ba6fef69270d3c4e48fc517096ef41, < cf42a445bd5036c30d57ae65b041b8b17dfef7b0; >= 8e4ba491b0ba6fef69270d3c4e48fc517096ef41, < 859e52356f913806e5c1ee5d2022b7aeda0a784a; >= 8e4ba491b0ba6fef69270d3c4e48fc517096ef41, < 24c04e80c35ff36947366f6deafddb522eea080c; >= 8e4ba491b0ba6fef69270d3c4e48fc517096ef41, < b1c357131fc467c579f65e9a9d1fdc1a6273ae1d; >= 8e4ba491b0ba6fef69270d3c4e48fc517096ef41, < 152fb5083b9333a1cb8629572f9e0f276a404ba6; >= 8e4ba491b0ba6fef69270d3c4e48fc517096ef41, < 72d5cbb10d4916a3f8ef9da516c5c0634aca8439; >= 8e4ba491b0ba6fef69270d3c4e48fc517096ef41, < ebe162db655881a38de43301151ff7ac940602b5
LinuxLinux5.10

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-99006?
In the Linux kernel, the following vulnerability has been resolved: drm/i915/gem: Prevent overstepping exec array boundary It is possible for eb_relocate_parse_slow() to call kvfree() on entries outside the original exec array during following scenario inside eb_relocate_parse_slow(): 1) eb_copy_relocations() allocates as many as eb->buffer_count copies for exec entries; 2) eb_parse() appends up to two VMAs, right after incrementing eb->buffer_count; 3) cleanup under "out" label uses this incremented buffer_count to release relocation pointers from exec array via kvfree(), not from VMA array. To amend this problem, ensure that relocation cleanup uses the original exec object count, excluding the VMAs appended by the command parser. (cherry picked from commit 2a0158925fb943c7ba8f3216e2734952128defc9)
How severe is CVE-2026-99006?
CVE-2026-99006 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.16% probability of exploitation in the next 30 days.
How do I fix CVE-2026-99006?
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