CVE-2025-22100

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There is no network-reachable path into this GPU driver.\nAC:L - The attacker controls both sides of the race, spinning one thread on read() of its own fdinfo while another thread loops GROUP_CREATE/GROUP_DESTROY, so the window can be hit repeatedly and at will. Groups with no submitted jobs are freed synchronously on destroy, making the window wide and reproducible.\nPR:L - Both the GROUP_CREATE and GROUP_DESTROY ioctls are DRM_RENDER_ALLOW, requiring no DRM master or authentication, and any process can read its own /proc/self/fdinfo. On Android, Chromebooks and embedded Mali-CSF systems ordinary unprivileged apps hold render-node access.\nUI:N - The attacking process performs every step itself \u2014 opening the render node, creating and destroying the group, and reading its own fdinfo. No victim action is involved.\nS:U - The use-after-free corrupts kernel slab memory within the same security authority; there is no VM, IOMMU or sandbox boundary crossed.\nC:H - The loop reads two u64 fields out of the freed panthor_group and the values are printed straight back to userspace as drm-cycles-panthor/drm-engine-panthor, leaking reallocated heap contents including potential kernel pointers, and a UAF generally yields an arbitrary-read primitive via heap grooming.\nI:H - The loop body writes into the freed object \u2014 mutex_lock/unlock on group->fdinfo.lock plus zeroing of the data fields \u2014 corrupting whatever structure reuses the slab, which is a classic path to control-flow hijack via heap spraying.\nA:H - Dereferencing and locking a freed mutex reliably produces a kernel oops or panic, and the corrupted lock state can additionally hang tasks waiting on it."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/panthor/panthor_sched.c"], "versions": [{"version": "e16635d88fa07ba5801aa9e57ad7fe3c053234e4", "lessThan": "6d98c83ad67e7bd86a47494fd6c3863e7bb26db9", "status": "affected", "versionType": "git"}, {"version": "e16635d88fa07ba5801aa9e57ad7fe3c053234e4", "lessThan": "e9d45f42a64a400adba59ee83d03e6db662530b4", "status": "affected", "versionType": "git"}, {"version": "e16635d88fa07ba5801aa9e57ad7fe3c053234e4", "lessThan": "0590c94c3596d6c1a3d549ae611366f2ad4e1d8d", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/panthor/panthor_sched.c"], "versions": [{"version": "6.13", "status": "affected"}, {"version": "0", "lessThan": "6.13", "status": "unaffected", "versionType": "semver"}, {"version": "6.13.11", "lessThanOrEqual": "6.13.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.14.2", "lessThanOrEqual": "6.14.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.15", "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": "6.13", "versionEndExcluding": "6.13.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "6.14.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "6.15"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/6d98c83ad67e7bd86a47494fd6c3863e7bb26db9"}, {"url": "https://git.kernel.org/stable/c/e9d45f42a64a400adba59ee83d03e6db662530b4"}, {"url": "https://git.kernel.org/stable/c/0590c94c3596d6c1a3d549ae611366f2ad4e1d8d"}], "title": "drm/panthor: Fix race condition when gathering fdinfo group samples", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/gpu/drm/panthor/panthor_sched.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "6d98c83ad67e7bd86a47494fd6c3863e7bb26db9", "status": "affected", "version": "e16635d88fa07ba5801aa9e57ad7fe3c053234e4", "versionType": "git"}, {"lessThan": "e9d45f42a64a400adba59ee83d03e6db662530b4", "status": "affected", "version": "e16635d88fa07ba5801aa9e57ad7fe3c053234e4", "versionType": "git"}, {"lessThan": "0590c94c3596d6c1a3d549ae611366f2ad4e1d8d", "status": "affected", "version": "e16635d88fa07ba5801aa9e57ad7fe3c053234e4", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/gpu/drm/panthor/panthor_sched.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.13"}, {"lessThan": "6.13", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.13.*", "status": "unaffected", "version": "6.13.11", "versionType": "semver"}, {"lessThanOrEqual": "6.14.*", "status": "unaffected", "version": "6.14.2", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.15", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E7E864B0-8C00-4679-BA55-659B4C9C3AD3", "versionEndExcluding": "6.13.11", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "FADAE5D8-4808-442C-B218-77B2CE8780A0", "versionEndExcluding": "6.14.2", "versionStartIncluding": "6.14", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panthor: Fix race condition when gathering fdinfo group samples\n\nCommit e16635d88fa0 (\"drm/panthor: add DRM fdinfo support\") failed to\nprotect access to groups with an xarray lock, which could lead to\nuse-after-free errors."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/panthor: Se corrige la condici\u00f3n de ejecuci\u00f3n al recopilar muestras del grupo fdinfo. El commit e16635d88fa0 (\"drm/panthor: agregar soporte fdinfo de DRM\") no pudo proteger el acceso a grupos con un bloqueo de matriz x, lo que podr\u00eda provocar errores de use-after-free."}], "id": "CVE-2025-22100", "lastModified": "2026-07-30T06:22:12.860", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 4.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-04-16T15:16:04.363", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0590c94c3596d6c1a3d549ae611366f2ad4e1d8d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6d98c83ad67e7bd86a47494fd6c3863e7bb26db9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e9d45f42a64a400adba59ee83d03e6db662530b4"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-362"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: drm/panthor: Fix race condition when gathering fdinfo group samples", "id": "2360280", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2360280"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-362", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndrm/panthor: Fix race condition when gathering fdinfo group samples\nCommit e16635d88fa0 (\"drm/panthor: add DRM fdinfo support\") failed to\nprotect access to groups with an xarray lock, which could lead to\nuse-after-free errors."], "name": "CVE-2025-22100", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-04-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-22100\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-22100\nhttps://lore.kernel.org/linux-cve-announce/2025041620-CVE-2025-22100-a7e4@gregkh/T"], "threat_severity": "Moderate"}

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