vhost: move vdpa group bound check to vhost_vdpa

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Summary

CVECVE-2026-43248
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-06 12:16:45 UTC
Updated2026-05-06 13:07:51 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: vhost: move vdpa group bound check to vhost_vdpa Remove duplication by consolidating these here. This reduces the posibility of a parent driver missing them. While we're at it, fix a bug in vdpa_sim where a valid ASID can be assigned to a group equal to ngroups, causing an out of bound write.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected bda324fd037a6b0d44da5699574ce741ca161bc4 ddb57354634b6ba851b79da45f1de42c646f27d0 git Not specified
CNA Linux Linux affected bda324fd037a6b0d44da5699574ce741ca161bc4 7441d35d14d9a3d66d925d90cb73c75394e6d454 git Not specified
CNA Linux Linux affected bda324fd037a6b0d44da5699574ce741ca161bc4 406db68f9cb976a8ddfafd631197264f2307e9c9 git Not specified
CNA Linux Linux affected bda324fd037a6b0d44da5699574ce741ca161bc4 cd025c1e876b4e262e71398236a1550486a73ede git Not specified
CNA Linux Linux affected 5.19 Not specified
CNA Linux Linux unaffected 5.19 semver Not specified
CNA Linux Linux unaffected 6.12.75 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.16 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.6 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/cd025c1e876b4e262e71398236a1550486a73ede 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/406db68f9cb976a8ddfafd631197264f2307e9c9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7441d35d14d9a3d66d925d90cb73c75394e6d454 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/ddb57354634b6ba851b79da45f1de42c646f27d0 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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