accel/ivpu: Fix signed integer truncation in IPC receive

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Summary

CVECVE-2026-53202
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-25 09:16:37 UTC
Updated2026-06-25 09:16:37 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: accel/ivpu: Fix signed integer truncation in IPC receive Fix potential buffer overflow where firmware-supplied data_size is cast to signed int before being used in min_t(). Large unsigned values (>= 0x80000000) become negative, causing unsigned wraparound and oversized memcpy operations that can overflow the stack buffer. Change min_t(int, ...) to min() as both values are unsigned and can be handled by min() without explicit cast.

Risk And Classification

EPSS: 0.001930000 probability, percentile 0.092070000 (date 2026-06-25)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 3b434a3445fff3149128db0169da864d67057325 4788556d4dd9d717037e385de178974e9649231d git Not specified
CNA Linux Linux affected 3b434a3445fff3149128db0169da864d67057325 45cb105b8642c65e9be286f7058e92314efe7ea3 git Not specified
CNA Linux Linux affected 3b434a3445fff3149128db0169da864d67057325 2821bf2b79e47f87e1dbdd9d25c78240965a97d6 git Not specified
CNA Linux Linux affected 3b434a3445fff3149128db0169da864d67057325 d9faef564438d1e4579c692c046603e7ada7bdf4 git Not specified
CNA Linux Linux affected 6.8 Not specified
CNA Linux Linux unaffected 6.8 semver Not specified
CNA Linux Linux unaffected 6.12.94 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.36 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.13 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/4788556d4dd9d717037e385de178974e9649231d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/2821bf2b79e47f87e1dbdd9d25c78240965a97d6 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/d9faef564438d1e4579c692c046603e7ada7bdf4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/45cb105b8642c65e9be286f7058e92314efe7ea3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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