{"id":"CVE-2026-93179","state":"PUBLISHED","title":"drm/amd/powerplay: fix VoltageObjectInfo zero-stride loop and OOB read","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/powerplay: fix VoltageObjectInfo zero-stride loop and OOB read\n\nReject voltage objects whose usSize is smaller than the header or would\nadvance the cursor past the table end, preventing an infinite loop or\nheap OOB read when the VBIOS supplies a malformed VoltageObjectInfo table.","publishedAt":"2026-09-17T16:12:07.307Z","updatedAt":"2026-10-30T12:36:17.392Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"c82baa28184356a75c0157129f88af42b2e7b695","status":"affected","lessThan":"ed84504713e8357f33693f638fda68fc98f0c9d2","versionType":"git"},{"version":"c82baa28184356a75c0157129f88af42b2e7b695","status":"affected","lessThan":"86644d37d2b388854b2cfd4d4f57b3d84a57154b","versionType":"git"},{"version":"c82baa28184356a75c0157129f88af42b2e7b695","status":"affected","lessThan":"e5b3c485ef911358752a3abbf3705d05d0eafd7a","versionType":"git"},{"version":"c82baa28184356a75c0157129f88af42b2e7b695","status":"affected","lessThan":"574af7c61f2bed37baa3b60669e428d24d2c9ae8","versionType":"git"},{"version":"c82baa28184356a75c0157129f88af42b2e7b695","status":"affected","lessThan":"203ffe648948ca3c2f55b21118945a7a6d0884aa","versionType":"git"},{"version":"c82baa28184356a75c0157129f88af42b2e7b695","status":"affected","lessThan":"0a6c9b3801903b6db91f3cbf148646b501dbded3","versionType":"git"},{"version":"c82baa28184356a75c0157129f88af42b2e7b695","status":"affected","lessThan":"83c680de6d41d627c077dedb24f89d9e5be0e2a2","versionType":"git"},{"version":"c82baa28184356a75c0157129f88af42b2e7b695","status":"affected","lessThan":"5d3cc8e388464f485d0944b87b8f9426e637d082","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppatomctrl.c","drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppatomfwctrl.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.5","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.5","versionType":"semver"},{"version":"5.10.273","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.224","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.113","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.56","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppatomctrl.c","drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppatomfwctrl.c"]}],"references":["https://git.kernel.org/stable/c/ed84504713e8357f33693f638fda68fc98f0c9d2","https://git.kernel.org/stable/c/86644d37d2b388854b2cfd4d4f57b3d84a57154b","https://git.kernel.org/stable/c/e5b3c485ef911358752a3abbf3705d05d0eafd7a","https://git.kernel.org/stable/c/574af7c61f2bed37baa3b60669e428d24d2c9ae8","https://git.kernel.org/stable/c/203ffe648948ca3c2f55b21118945a7a6d0884aa","https://git.kernel.org/stable/c/0a6c9b3801903b6db91f3cbf148646b501dbded3","https://git.kernel.org/stable/c/83c680de6d41d627c077dedb24f89d9e5be0e2a2","https://git.kernel.org/stable/c/5d3cc8e388464f485d0944b87b8f9426e637d082"],"weaknesses":[],"ingestedAt":"2026-10-30T12:56:04.490Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/93xxx/CVE-2026-93179.json","commit":"1f312381e38164a43607eebab851b151dd16861e","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93179","state":"PUBLISHED","datePublished":"2026-09-17T16:12:07.307Z","dateUpdated":"2026-10-30T12:36:17.392Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-17T16:02:15.091Z"},"containers":{"cna":{"title":"drm/amd/powerplay: fix VoltageObjectInfo zero-stride loop and OOB read","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/powerplay: fix VoltageObjectInfo zero-stride loop and OOB read\n\nReject voltage objects whose usSize is smaller than the header or would\nadvance the cursor past the table end, preventing an infinite loop or\nheap OOB read when the VBIOS supplies a malformed VoltageObjectInfo table."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"c82baa28184356a75c0157129f88af42b2e7b695","status":"affected","lessThan":"ed84504713e8357f33693f638fda68fc98f0c9d2","versionType":"git"},{"version":"c82baa28184356a75c0157129f88af42b2e7b695","status":"affected","lessThan":"86644d37d2b388854b2cfd4d4f57b3d84a57154b","versionType":"git"},{"version":"c82baa28184356a75c0157129f88af42b2e7b695","status":"affected","lessThan":"e5b3c485ef911358752a3abbf3705d05d0eafd7a","versionType":"git"},{"version":"c82baa28184356a75c0157129f88af42b2e7b695","status":"affected","lessThan":"574af7c61f2bed37baa3b60669e428d24d2c9ae8","versionType":"git"},{"version":"c82baa28184356a75c0157129f88af42b2e7b695","status":"affected","lessThan":"203ffe648948ca3c2f55b21118945a7a6d0884aa","versionType":"git"},{"version":"c82baa28184356a75c0157129f88af42b2e7b695","status":"affected","lessThan":"0a6c9b3801903b6db91f3cbf148646b501dbded3","versionType":"git"},{"version":"c82baa28184356a75c0157129f88af42b2e7b695","status":"affected","lessThan":"83c680de6d41d627c077dedb24f89d9e5be0e2a2","versionType":"git"},{"version":"c82baa28184356a75c0157129f88af42b2e7b695","status":"affected","lessThan":"5d3cc8e388464f485d0944b87b8f9426e637d082","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppatomctrl.c","drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppatomfwctrl.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.5","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.5","versionType":"semver"},{"version":"5.10.273","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.224","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.113","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.56","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppatomctrl.c","drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppatomfwctrl.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/ed84504713e8357f33693f638fda68fc98f0c9d2"},{"url":"https://git.kernel.org/stable/c/86644d37d2b388854b2cfd4d4f57b3d84a57154b"},{"url":"https://git.kernel.org/stable/c/e5b3c485ef911358752a3abbf3705d05d0eafd7a"},{"url":"https://git.kernel.org/stable/c/574af7c61f2bed37baa3b60669e428d24d2c9ae8"},{"url":"https://git.kernel.org/stable/c/203ffe648948ca3c2f55b21118945a7a6d0884aa"},{"url":"https://git.kernel.org/stable/c/0a6c9b3801903b6db91f3cbf148646b501dbded3"},{"url":"https://git.kernel.org/stable/c/83c680de6d41d627c077dedb24f89d9e5be0e2a2"},{"url":"https://git.kernel.org/stable/c/5d3cc8e388464f485d0944b87b8f9426e637d082"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-30T12:36:17.392Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.5","versionEndExcluding":"5.10.273"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.5","versionEndExcluding":"5.15.224"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.5","versionEndExcluding":"6.1.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.5","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.5","versionEndExcluding":"6.12.113"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.5","versionEndExcluding":"6.18.56"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.5","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.5","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}