CVE-2026-99150

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-99150", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.396Z", "datePublished": "2026-10-28T10:35:05.753Z", "dateUpdated": "2026-10-30T12:42:17.152Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:42:17.152Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: don't drop the runtime PM reference twice in amdgpu_gpr\n\namdgpu_debugfs_gpr_read() drops its runtime PM reference right after\nreading the wave registers. When copying them to userspace fails, it\njumps to the err label, which drops the reference a second time. A read\ninto a bad buffer on Navi31 either steals a reference somebody else\nholds (power/runtime_usage goes from 1 to 0) or underflows the count:\n\n amdgpu 0000:03:00.0: Runtime PM usage count underflow!\n\nThe registers are already in the kernel buffer at that point, so finish\nthe hardware access first and copy the buffer with a single\ncopy_to_user() instead of the put_user() loop with its own error path.\n\n(cherry picked from commit 31035bbd74f7c3e10c163db875b8e67f8b50ee6a)"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c"], "versions": [{"version": "9eee152aab56d374edb9ad21b3db05f5cdda2fe6", "lessThan": "24c1f6e381d564e5f6893323cfe0264950358451", "status": "affected", "versionType": "git"}, {"version": "9eee152aab56d374edb9ad21b3db05f5cdda2fe6", "lessThan": "c333834b1b9cbb1021c954d29fa2373ac9e73499", "status": "affected", "versionType": "git"}, {"version": "9eee152aab56d374edb9ad21b3db05f5cdda2fe6", "lessThan": "eda6b57a83d942199a5947e73556fe918affad86", "status": "affected", "versionType": "git"}, {"version": "9eee152aab56d374edb9ad21b3db05f5cdda2fe6", "lessThan": "f9c0b333a5e44f734478ca8a7345f8b87d65ba7c", "status": "affected", "versionType": "git"}, {"version": "9eee152aab56d374edb9ad21b3db05f5cdda2fe6", "lessThan": "35aa048f242cade635f17924183c1df0ffe7a486", "status": "affected", "versionType": "git"}, {"version": "9eee152aab56d374edb9ad21b3db05f5cdda2fe6", "lessThan": "652b1f26125fe48aed5f4944698a85b457eef491", "status": "affected", "versionType": "git"}, {"version": "9eee152aab56d374edb9ad21b3db05f5cdda2fe6", "lessThan": "253555a9baccefffe1f6e5f2fe54363c7c01ebb9", "status": "affected", "versionType": "git"}, {"version": "9eee152aab56d374edb9ad21b3db05f5cdda2fe6", "lessThan": "de9f6bcdb44f0e410031002e2f103826ea6b6259", "status": "affected", "versionType": "git"}, {"version": "865e2dbadf6856c9219626fbd6154cac44e5fbca", "status": "affected", "versionType": "git"}, {"version": "5.8.2", "lessThan": "5.9", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c"], "versions": [{"version": "5.9", "status": "affected"}, {"version": "0", "lessThan": "5.9", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.273", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.224", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.191", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.161", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.115", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.59", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.13", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.9", "versionEndExcluding": "5.10.273"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.9", "versionEndExcluding": "5.15.224"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.9", "versionEndExcluding": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.9", "versionEndExcluding": "6.6.161"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.9", "versionEndExcluding": "6.12.115"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.9", "versionEndExcluding": "6.18.59"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.9", "versionEndExcluding": "7.2.13"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.9", "versionEndExcluding": "7.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/24c1f6e381d564e5f6893323cfe0264950358451"}, {"url": "https://git.kernel.org/stable/c/c333834b1b9cbb1021c954d29fa2373ac9e73499"}, {"url": "https://git.kernel.org/stable/c/eda6b57a83d942199a5947e73556fe918affad86"}, {"url": "https://git.kernel.org/stable/c/f9c0b333a5e44f734478ca8a7345f8b87d65ba7c"}, {"url": "https://git.kernel.org/stable/c/35aa048f242cade635f17924183c1df0ffe7a486"}, {"url": "https://git.kernel.org/stable/c/652b1f26125fe48aed5f4944698a85b457eef491"}, {"url": "https://git.kernel.org/stable/c/253555a9baccefffe1f6e5f2fe54363c7c01ebb9"}, {"url": "https://git.kernel.org/stable/c/de9f6bcdb44f0e410031002e2f103826ea6b6259"}], "title": "drm/amdgpu: don't drop the runtime PM reference twice in amdgpu_gpr", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "24c1f6e381d564e5f6893323cfe0264950358451", "status": "affected", "version": "9eee152aab56d374edb9ad21b3db05f5cdda2fe6", "versionType": "git"}, {"lessThan": "c333834b1b9cbb1021c954d29fa2373ac9e73499", "status": "affected", "version": "9eee152aab56d374edb9ad21b3db05f5cdda2fe6", "versionType": "git"}, {"lessThan": "eda6b57a83d942199a5947e73556fe918affad86", "status": "affected", "version": "9eee152aab56d374edb9ad21b3db05f5cdda2fe6", "versionType": "git"}, {"lessThan": "f9c0b333a5e44f734478ca8a7345f8b87d65ba7c", "status": "affected", "version": "9eee152aab56d374edb9ad21b3db05f5cdda2fe6", "versionType": "git"}, {"lessThan": "35aa048f242cade635f17924183c1df0ffe7a486", "status": "affected", "version": "9eee152aab56d374edb9ad21b3db05f5cdda2fe6", "versionType": "git"}, {"lessThan": "652b1f26125fe48aed5f4944698a85b457eef491", "status": "affected", "version": "9eee152aab56d374edb9ad21b3db05f5cdda2fe6", "versionType": "git"}, {"lessThan": "253555a9baccefffe1f6e5f2fe54363c7c01ebb9", "status": "affected", "version": "9eee152aab56d374edb9ad21b3db05f5cdda2fe6", "versionType": "git"}, {"lessThan": "de9f6bcdb44f0e410031002e2f103826ea6b6259", "status": "affected", "version": "9eee152aab56d374edb9ad21b3db05f5cdda2fe6", "versionType": "git"}, {"status": "affected", "version": "865e2dbadf6856c9219626fbd6154cac44e5fbca", "versionType": "git"}, {"lessThan": "5.9", "status": "affected", "version": "5.8.2", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.9"}, {"lessThan": "5.9", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.273", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.224", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.191", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.161", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.115", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.59", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.13", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: don't drop the runtime PM reference twice in amdgpu_gpr\n\namdgpu_debugfs_gpr_read() drops its runtime PM reference right after\nreading the wave registers. When copying them to userspace fails, it\njumps to the err label, which drops the reference a second time. A read\ninto a bad buffer on Navi31 either steals a reference somebody else\nholds (power/runtime_usage goes from 1 to 0) or underflows the count:\n\n amdgpu 0000:03:00.0: Runtime PM usage count underflow!\n\nThe registers are already in the kernel buffer at that point, so finish\nthe hardware access first and copy the buffer with a single\ncopy_to_user() instead of the put_user() loop with its own error path.\n\n(cherry picked from commit 31035bbd74f7c3e10c163db875b8e67f8b50ee6a)"}], "id": "CVE-2026-99150", "lastModified": "2026-10-30T13:21:48.737", "metrics": {}, "published": "2026-10-28T11:17:35.097", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/24c1f6e381d564e5f6893323cfe0264950358451"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/253555a9baccefffe1f6e5f2fe54363c7c01ebb9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/35aa048f242cade635f17924183c1df0ffe7a486"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/652b1f26125fe48aed5f4944698a85b457eef491"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c333834b1b9cbb1021c954d29fa2373ac9e73499"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/de9f6bcdb44f0e410031002e2f103826ea6b6259"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/eda6b57a83d942199a5947e73556fe918affad86"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f9c0b333a5e44f734478ca8a7345f8b87d65ba7c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: kernel: Denial of Service via double reference count drop in amdgpu debugfs", "id": "2562737", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2562737"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-911", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndrm/amdgpu: don't drop the runtime PM reference twice in amdgpu_gpr\namdgpu_debugfs_gpr_read() drops its runtime PM reference right after\nreading the wave registers. When copying them to userspace fails, it\njumps to the err label, which drops the reference a second time. A read\ninto a bad buffer on Navi31 either steals a reference somebody else\nholds (power/runtime_usage goes from 1 to 0) or underflows the count:\namdgpu 0000:03:00.0: Runtime PM usage count underflow!\nThe registers are already in the kernel buffer at that point, so finish\nthe hardware access first and copy the buffer with a single\ncopy_to_user() instead of the put_user() loop with its own error path.\n(cherry picked from commit 31035bbd74f7c3e10c163db875b8e67f8b50ee6a)", "A flaw was found in the Linux kernel's AMD GPU driver. When an error occurs while copying register data to user space during a debugfs read operation, the driver improperly releases a runtime Power Management (PM) reference twice. A local user could exploit this flaw by providing an invalid memory buffer, triggering a reference count underflow that may cause system instability or a Denial of Service (DoS)."], "name": "CVE-2026-99150", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-10-28T10:35:05Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-99150\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-99150\nhttps://git.kernel.org/stable/c/253555a9baccefffe1f6e5f2fe54363c7c01ebb9\nhttps://git.kernel.org/stable/c/652b1f26125fe48aed5f4944698a85b457eef491\nhttps://git.kernel.org/stable/c/de9f6bcdb44f0e410031002e2f103826ea6b6259"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9eee152aab56d374edb9ad21b3db05f5cdda2fe6,652b1f26125fe48aed5f4944698a85b457eef491)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9eee152aab56d374edb9ad21b3db05f5cdda2fe6,253555a9baccefffe1f6e5f2fe54363c7c01ebb9)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9eee152aab56d374edb9ad21b3db05f5cdda2fe6,de9f6bcdb44f0e410031002e2f103826ea6b6259)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "865e2dbadf6856c9219626fbd6154cac44e5fbca"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[5.8.2,5.9)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "5.9"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,5.9)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.59,6.18.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2.13,7.2.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9eee152aab56d374edb9ad21b3db05f5cdda2fe6,652b1f26125fe48aed5f4944698a85b457eef491)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9eee152aab56d374edb9ad21b3db05f5cdda2fe6,253555a9baccefffe1f6e5f2fe54363c7c01ebb9)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9eee152aab56d374edb9ad21b3db05f5cdda2fe6,de9f6bcdb44f0e410031002e2f103826ea6b6259)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "865e2dbadf6856c9219626fbd6154cac44e5fbca"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[5.8.2,5.9)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "5.9"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,5.9)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.59,6.18.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2.13,7.2.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-10-28T12:15:14.880941+00:00", "updated": "2026-10-30T05:45:07.045505+00:00", "vendors": ["linux", "linux$PRODUCT$linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-911"]}