drm/xe/vm: Fix BO prefetch with CONSULT_MEM_ADVISE_PREF_LOC
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 6.18.44, 7.1.6
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/xe/vm: Fix BO prefetch with CONSULT_MEM_ADVISE_PREF_LOC When prefetch region is DRM_XE_CONSULT_MEM_ADVISE_PREF_LOC for a BO VMA, the code used it as an index into region_to_mem_type[], causing an out-of-bounds access since the value is -1. Resolve the preferred location for BO VMAs directly: local VRAM on dGFX (using the BO's tile placement) or system memory on iGPU. Discovered using AI-assisted static analysis confirmed by Intel Product Security. v2: -Fix null dereference (cherry picked from commit d9a4906ac03be9f6ed3f3b45c56c866b867fd75b)
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Linux Linux
From c1bb69a2e8e2d55c3725e304d8b8fd189ee43fbe · fixed in d256dac008d1d9e6378aa1a5454e89a8292d174c; From c1bb69a2e8e2d55c3725e304d8b8fd189ee43fbe · fixed in c4affa4e8bc8086b4d3e8d6cf1055a624f813d72; From c1bb69a2e8e2d55c3725e304d8b8fd189ee43fbe · fixed in 7bc597ce74bab4153b2009c92eccf889e9d74044
- Linux Linux
6.18
- KernelLinux
From 6.18.0 · fixed in 6.18.44; From 6.19.0 · fixed in 7.1.6