{"id":"CVE-2026-98781","state":"PUBLISHED","title":"drm/mediatek: Fix pdev reference leak in mtk_drm_bind()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/mediatek: Fix pdev reference leak in mtk_drm_bind()\n\nWhen the device is not the mmsys master, mtk_drm_bind() returns early\nafter taking a reference on the disp-mutex device via\nof_find_device_by_node(), without ever dropping it: mtk_drm_unbind()\nonly puts mutex_dev for the master. Drop the reference before returning\nfrom the non-master path.","publishedAt":"2026-10-18T15:48:18.590Z","updatedAt":"2026-10-21T12:56:55.059Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1ef7ed48356cd5f9af2b7671956991b658d8c2ba","status":"affected","lessThan":"4a0ae61067671f556eeaf5ea4e59a1db63163d70","versionType":"git"},{"version":"1ef7ed48356cd5f9af2b7671956991b658d8c2ba","status":"affected","lessThan":"4a8f9cad0fced77b36b297c67c42730c9cb32ec6","versionType":"git"},{"version":"1ef7ed48356cd5f9af2b7671956991b658d8c2ba","status":"affected","lessThan":"b84f1386d84b3a73f73ebb416a3f97c5d64a8ab3","versionType":"git"},{"version":"1ef7ed48356cd5f9af2b7671956991b658d8c2ba","status":"affected","lessThan":"cb3e0244514d13507c6048777e1d0277e611cf6c","versionType":"git"},{"version":"1ef7ed48356cd5f9af2b7671956991b658d8c2ba","status":"affected","lessThan":"3753e34b73fcbe2a2edbe984614a008a261697ef","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/mediatek/mtk_drm_drv.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.4","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.4","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":"7.2.10","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/mediatek/mtk_drm_drv.c"]}],"references":["https://git.kernel.org/stable/c/4a0ae61067671f556eeaf5ea4e59a1db63163d70","https://git.kernel.org/stable/c/4a8f9cad0fced77b36b297c67c42730c9cb32ec6","https://git.kernel.org/stable/c/b84f1386d84b3a73f73ebb416a3f97c5d64a8ab3","https://git.kernel.org/stable/c/cb3e0244514d13507c6048777e1d0277e611cf6c","https://git.kernel.org/stable/c/3753e34b73fcbe2a2edbe984614a008a261697ef"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98781.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98781","state":"PUBLISHED","datePublished":"2026-10-18T15:48:18.590Z","dateUpdated":"2026-10-21T12:56:55.059Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.369Z"},"containers":{"cna":{"title":"drm/mediatek: Fix pdev reference leak in mtk_drm_bind()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/mediatek: Fix pdev reference leak in mtk_drm_bind()\n\nWhen the device is not the mmsys master, mtk_drm_bind() returns early\nafter taking a reference on the disp-mutex device via\nof_find_device_by_node(), without ever dropping it: mtk_drm_unbind()\nonly puts mutex_dev for the master. Drop the reference before returning\nfrom the non-master path."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1ef7ed48356cd5f9af2b7671956991b658d8c2ba","status":"affected","lessThan":"4a0ae61067671f556eeaf5ea4e59a1db63163d70","versionType":"git"},{"version":"1ef7ed48356cd5f9af2b7671956991b658d8c2ba","status":"affected","lessThan":"4a8f9cad0fced77b36b297c67c42730c9cb32ec6","versionType":"git"},{"version":"1ef7ed48356cd5f9af2b7671956991b658d8c2ba","status":"affected","lessThan":"b84f1386d84b3a73f73ebb416a3f97c5d64a8ab3","versionType":"git"},{"version":"1ef7ed48356cd5f9af2b7671956991b658d8c2ba","status":"affected","lessThan":"cb3e0244514d13507c6048777e1d0277e611cf6c","versionType":"git"},{"version":"1ef7ed48356cd5f9af2b7671956991b658d8c2ba","status":"affected","lessThan":"3753e34b73fcbe2a2edbe984614a008a261697ef","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/mediatek/mtk_drm_drv.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.4","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.4","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":"7.2.10","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/mediatek/mtk_drm_drv.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/4a0ae61067671f556eeaf5ea4e59a1db63163d70"},{"url":"https://git.kernel.org/stable/c/4a8f9cad0fced77b36b297c67c42730c9cb32ec6"},{"url":"https://git.kernel.org/stable/c/b84f1386d84b3a73f73ebb416a3f97c5d64a8ab3"},{"url":"https://git.kernel.org/stable/c/cb3e0244514d13507c6048777e1d0277e611cf6c"},{"url":"https://git.kernel.org/stable/c/3753e34b73fcbe2a2edbe984614a008a261697ef"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-21T12:56:55.059Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.12.113"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.18.56"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"7.2.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}