{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-50173", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-10-21T19:36:19.963Z", "datePublished": "2024-11-08T05:23:55.847Z", "dateUpdated": "2026-08-05T11:42:15.864Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:42:15.864Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panthor: Fix access to uninitialized variable in tick_ctx_cleanup()\n\nThe group variable can't be used to retrieve ptdev in our second loop,\nbecause it points to the previously iterated list_head, not a valid\ngroup. 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" } } ] } }