vt: add permission check for KDSKBMETA ioctl

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-74676
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-22 16:16:41 UTC
Updated2026-08-22 16:16:41 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: vt: add permission check for KDSKBMETA ioctl KDSKBMETA modifies keyboard meta mode but lacks the !perm check that all other keyboard setter ioctls in vt_k_ioctl() enforce, allowing a process to change meta mode on a non-controlling console without authorization.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 9f8cbaf4b774694dcc292e60509762483ebfd9ae git Not specified
CNA Linux Linux affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 ddc4a8303347114e945b9e6e81b81d77855f7358 git Not specified
CNA Linux Linux affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 1c5b67a1e2cb7d78dab321280f330b056e3bf437 git Not specified
CNA Linux Linux affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 d8ead5083b203d12b8319e7cb29cc6b8836e813f git Not specified
CNA Linux Linux affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 4671c3b79e337bbae28c2d79023dc642df012bde git Not specified
CNA Linux Linux affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 a1c31e026c93e378e297a8df8328983d3013a59f git Not specified
CNA Linux Linux affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 7bf32337a7103ccb686cbd240324bf26225ef2d6 git Not specified
CNA Linux Linux affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 a7ad0034453ba4c353f9b8f810ee2569de33d283 git Not specified
CNA Linux Linux affected 5.10.265 semver Not specified
CNA Linux Linux affected 5.15.216 semver Not specified
CNA Linux Linux affected 6.1.183 semver Not specified
CNA Linux Linux affected 6.6.152 semver Not specified
CNA Linux Linux affected 6.12.104 semver Not specified
CNA Linux Linux affected 6.18.45 semver Not specified
CNA Linux Linux affected 7.1.9 semver Not specified
CNA Linux Linux unaffected 5.10.265 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.216 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.183 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.152 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.104 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.45 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.9 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/a7ad0034453ba4c353f9b8f810ee2569de33d283 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/d8ead5083b203d12b8319e7cb29cc6b8836e813f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/a1c31e026c93e378e297a8df8328983d3013a59f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/9f8cbaf4b774694dcc292e60509762483ebfd9ae 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7bf32337a7103ccb686cbd240324bf26225ef2d6 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/4671c3b79e337bbae28c2d79023dc642df012bde 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/1c5b67a1e2cb7d78dab321280f330b056e3bf437 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/ddc4a8303347114e945b9e6e81b81d77855f7358 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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