Description
In the Linux kernel, the following vulnerability has been resolved: accel/qaic: Add overflow check to remap_pfn_range during mmap The call to remap_pfn_range in qaic_gem_object_mmap is susceptible to (re)mapping beyond the VMA if the BO is too large. This can cause use after free issues when munmap() unmaps only the VMA region and not the additional mappings. To prevent this, check the remaining size of the VMA before remapping and truncate the remapped length if sg->length is too large. [jhugo: fix braces from checkpatch --strict]
Affected products
linux: linux kernel
References5
- git.kernel.org/stable/c/8c795012d0e06b7740e40319b86ff8d2a435098d Patch
- git.kernel.org/stable/c/8dd6edbe26770df147136c3f2ac976c873b82650 Patch
- git.kernel.org/stable/c/97a8e89cdef36207a8776edc03d6931763a06ad0 Patch
- git.kernel.org/stable/c/9baafc2fea096279e75480f93fd5942e8336b510 Patch
- git.kernel.org/stable/c/aa16b2bc0f02709919e2435f531406531e5bcc69 Patch
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 3 · as of 14 November 2026
- CWE
- CWE-416
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