{"id":"CVE-2026-98779","state":"PUBLISHED","title":"drm/amdgpu: fix ACP MFD device leak on init failure","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: fix ACP MFD device leak on init failure\n\nacp_hw_init() registers ACP child devices with mfd_add_devices() before\nattaching them to the ACP power domain and initializing the hardware.\n\nIf attaching a child to the power domain fails, or if the ACP reset or\nclock enable operation times out, the failure path frees only the\nsource cell, resource, and platform-data allocations. The child\nplatform devices already registered by mfd_add_devices() remain\nregistered and are never released.\n\nRemove the children from the power domain and unregister the MFD\ndevices on failures that occur after mfd_add_devices() succeeds. Keep\nmfd_add_devices() failures on the existing cleanup path since the MFD\ncore already rolls back partially registered children itself.\n\nThe issue was identified by a static analysis tool I developed and\nconfirmed by manual review.\n\n(cherry picked from commit 63da68d6a2279ec945581c990c5a59a5ae8b5560)","publishedAt":"2026-10-18T15:48:16.729Z","updatedAt":"2026-10-30T12:39:46.267Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"25030321ba2860c56651429a4f28d94a6483d952","status":"affected","lessThan":"385ad314f1c096aae71fff516214bb312a6047fb","versionType":"git"},{"version":"25030321ba2860c56651429a4f28d94a6483d952","status":"affected","lessThan":"7b7f770f48be77ce38e93216983dcdf1ea3a42ba","versionType":"git"},{"version":"25030321ba2860c56651429a4f28d94a6483d952","status":"affected","lessThan":"65ef6645982ccde16a7bc98d025eb80f5fab47f6","versionType":"git"},{"version":"25030321ba2860c56651429a4f28d94a6483d952","status":"affected","lessThan":"d700c26ed64bd3c26e4aa7679b9d5f3333c3747a","versionType":"git"},{"version":"25030321ba2860c56651429a4f28d94a6483d952","status":"affected","lessThan":"2b9a53940a2bc063ea4cd09ee49220a503a0170c","versionType":"git"},{"version":"25030321ba2860c56651429a4f28d94a6483d952","status":"affected","lessThan":"587469076e4ffb617f7ad1a0c4a13072a3e87113","versionType":"git"},{"version":"25030321ba2860c56651429a4f28d94a6483d952","status":"affected","lessThan":"abf854513bc19e6e24d45353ac99ec5627ee0acc","versionType":"git"},{"version":"25030321ba2860c56651429a4f28d94a6483d952","status":"affected","lessThan":"f0013046151b7467e62c471c1c83d63ea255799c","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.6","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":"7.2.10","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/amd/amdgpu/amdgpu_acp.c"]}],"references":["https://git.kernel.org/stable/c/385ad314f1c096aae71fff516214bb312a6047fb","https://git.kernel.org/stable/c/7b7f770f48be77ce38e93216983dcdf1ea3a42ba","https://git.kernel.org/stable/c/65ef6645982ccde16a7bc98d025eb80f5fab47f6","https://git.kernel.org/stable/c/d700c26ed64bd3c26e4aa7679b9d5f3333c3747a","https://git.kernel.org/stable/c/2b9a53940a2bc063ea4cd09ee49220a503a0170c","https://git.kernel.org/stable/c/587469076e4ffb617f7ad1a0c4a13072a3e87113","https://git.kernel.org/stable/c/abf854513bc19e6e24d45353ac99ec5627ee0acc","https://git.kernel.org/stable/c/f0013046151b7467e62c471c1c83d63ea255799c"],"weaknesses":[],"ingestedAt":"2026-10-30T13:00:06.648Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98779.json","commit":"cb14bf1b43b0c9f05f7f40eae2246263fd430780","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98779","state":"PUBLISHED","datePublished":"2026-10-18T15:48:16.729Z","dateUpdated":"2026-10-30T12:39:46.267Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.369Z"},"containers":{"cna":{"title":"drm/amdgpu: fix ACP MFD device leak on init failure","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: fix ACP MFD device leak on init failure\n\nacp_hw_init() registers ACP child devices with mfd_add_devices() before\nattaching them to the ACP power domain and initializing the hardware.\n\nIf attaching a child to the power domain fails, or if the ACP reset or\nclock enable operation times out, the failure path frees only the\nsource cell, resource, and platform-data allocations. The child\nplatform devices already registered by mfd_add_devices() remain\nregistered and are never released.\n\nRemove the children from the power domain and unregister the MFD\ndevices on failures that occur after mfd_add_devices() succeeds. Keep\nmfd_add_devices() failures on the existing cleanup path since the MFD\ncore already rolls back partially registered children itself.\n\nThe issue was identified by a static analysis tool I developed and\nconfirmed by manual review.\n\n(cherry picked from commit 63da68d6a2279ec945581c990c5a59a5ae8b5560)"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"25030321ba2860c56651429a4f28d94a6483d952","status":"affected","lessThan":"385ad314f1c096aae71fff516214bb312a6047fb","versionType":"git"},{"version":"25030321ba2860c56651429a4f28d94a6483d952","status":"affected","lessThan":"7b7f770f48be77ce38e93216983dcdf1ea3a42ba","versionType":"git"},{"version":"25030321ba2860c56651429a4f28d94a6483d952","status":"affected","lessThan":"65ef6645982ccde16a7bc98d025eb80f5fab47f6","versionType":"git"},{"version":"25030321ba2860c56651429a4f28d94a6483d952","status":"affected","lessThan":"d700c26ed64bd3c26e4aa7679b9d5f3333c3747a","versionType":"git"},{"version":"25030321ba2860c56651429a4f28d94a6483d952","status":"affected","lessThan":"2b9a53940a2bc063ea4cd09ee49220a503a0170c","versionType":"git"},{"version":"25030321ba2860c56651429a4f28d94a6483d952","status":"affected","lessThan":"587469076e4ffb617f7ad1a0c4a13072a3e87113","versionType":"git"},{"version":"25030321ba2860c56651429a4f28d94a6483d952","status":"affected","lessThan":"abf854513bc19e6e24d45353ac99ec5627ee0acc","versionType":"git"},{"version":"25030321ba2860c56651429a4f28d94a6483d952","status":"affected","lessThan":"f0013046151b7467e62c471c1c83d63ea255799c","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.6","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":"7.2.10","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/amd/amdgpu/amdgpu_acp.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/385ad314f1c096aae71fff516214bb312a6047fb"},{"url":"https://git.kernel.org/stable/c/7b7f770f48be77ce38e93216983dcdf1ea3a42ba"},{"url":"https://git.kernel.org/stable/c/65ef6645982ccde16a7bc98d025eb80f5fab47f6"},{"url":"https://git.kernel.org/stable/c/d700c26ed64bd3c26e4aa7679b9d5f3333c3747a"},{"url":"https://git.kernel.org/stable/c/2b9a53940a2bc063ea4cd09ee49220a503a0170c"},{"url":"https://git.kernel.org/stable/c/587469076e4ffb617f7ad1a0c4a13072a3e87113"},{"url":"https://git.kernel.org/stable/c/abf854513bc19e6e24d45353ac99ec5627ee0acc"},{"url":"https://git.kernel.org/stable/c/f0013046151b7467e62c471c1c83d63ea255799c"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-30T12:39:46.267Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"5.10.273"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"5.15.224"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.1.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.12.113"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.18.56"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"7.2.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}