CVE-2024-50173

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Get the ptdev object from the scheduler instead."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The vulnerable code is the panthor GPU scheduler tick worker, reached only through DRM ioctls on `/dev/dri/renderD*` (GROUP_CREATE/GROUP_SUBMIT). There is no network or remote path to the panthor scheduler.\nAC:L - There is no race to win and no memory-layout condition outside the attacker's influence; the bogus `group` pointer is deterministic (a fixed negative offset from the on-stack tick context) and the attacker fully controls invocation of the scheduler tick by submitting GPU work and provoking queue faults, CSG timeouts and reset handling.\nPR:L - All panthor ioctls are marked `DRM_RENDER_ALLOW`, requiring neither DRM master nor any capability, so any local unprivileged process with render-node access (the default for desktop/Chromebook/Android GPU clients and sandboxed renderers) can reach the path.\nUI:N - The attacker's own process drives group creation and job submission; the scheduler tick work runs asynchronously with no action required from any other user.\nS:U - The stale pointer read and resulting fault occur in kernel context within the same security authority; no VM, IOMMU or sandbox boundary is crossed.\nC:H - The garbage value loaded from stale kernel stack is dereferenced as a `struct panthor_device *` and a string is read through `->base.dev` and printed via printk, disclosing kernel memory contents into the kernel log; the attacker can influence stack residue to steer that read.\nI:H - Consuming an uninitialized pointer as a live device object corrupts kernel control flow into `dev_driver_string()`/`dev_name()` on attacker-influenceable stack residue, which is not a bounded read and is treated as exploitable memory corruption rather than a contained fault.\nA:H - Dereferencing the bogus `group->ptdev` value reliably produces an oops/panic in the GPU scheduler worker while holding `sched->lock`, wedging the GPU scheduler and crashing the kernel."}]}], "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": "d72f049087d4f973f6332b599c92177e718107de", "lessThan": "ac2ca5e5148a0d4d78ac01c2d8348d0757c7367f", "status": "affected", "versionType": "git"}, {"version": "d72f049087d4f973f6332b599c92177e718107de", "lessThan": "3bde05794497d5f426d4ea2ecb9868bf7721fb24", "status": "affected", "versionType": "git"}, {"version": "d72f049087d4f973f6332b599c92177e718107de", "lessThan": "282864cc5d3f144af0cdea1868ee2dc2c5110f0d", "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": "6.10", "status": "affected"}, {"version": "0", "lessThan": "6.10", "status": "unaffected", "versionType": "semver"}, {"version": "6.10.14", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.11.3", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12", "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": "6.10", "versionEndExcluding": "6.10.14"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "6.11.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "6.12"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/ac2ca5e5148a0d4d78ac01c2d8348d0757c7367f"}, {"url": "https://git.kernel.org/stable/c/3bde05794497d5f426d4ea2ecb9868bf7721fb24"}, {"url": "https://git.kernel.org/stable/c/282864cc5d3f144af0cdea1868ee2dc2c5110f0d"}], "title": "drm/panthor: Fix access to uninitialized variable in tick_ctx_cleanup()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2024-50173", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-10-01T20:19:28.113788Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-908", "description": "CWE-908 Use of Uninitialized Resource"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T20:27:10.747Z"}}]}}

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Get the ptdev object from the scheduler instead."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/panthor: Se corrige el acceso a una variable no inicializada en tick_ctx_cleanup() La variable de grupo no se puede usar para recuperar ptdev en nuestro segundo bucle, porque apunta a list_head iterado previamente, no a un grupo v\u00e1lido. En su lugar, obtenga el objeto ptdev del programador."}], "id": "CVE-2024-50173", "lastModified": "2026-08-04T11:21:28.520", "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": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-50173", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-10-01T20:19:28.113788Z", "version": "2.0.3"}}]}, "published": "2024-11-08T06:15:14.840", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/282864cc5d3f144af0cdea1868ee2dc2c5110f0d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3bde05794497d5f426d4ea2ecb9868bf7721fb24"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ac2ca5e5148a0d4d78ac01c2d8348d0757c7367f"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-908"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-908"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

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