{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-42123", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-07-29T15:50:41.179Z", "datePublished": "2024-07-30T07:46:15.130Z", "dateUpdated": "2026-08-05T11:35:48.609Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:35:48.609Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: fix double free err_addr pointer warnings\n\nIn amdgpu_umc_bad_page_polling_timeout, the amdgpu_umc_handle_bad_pages\nwill be run many times so that double free err_addr in some special case.\nSo set the err_addr to NULL to avoid the warnings." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The vulnerable path is reached only through local GPU access — a compute job on /dev/kfd + /dev/dri/renderD* raising a per-PASID poison-consumption interrupt, or the driver's own page-retirement kthread. No network or adjacent-network input reaches amdgpu_umc_handle_bad_pages().\nAC:H - Triggering requires a real uncorrectable ECC/poison event in GPU HBM and, on a later poll iteration, amdgpu_dpm_get_ecc_info() returning a value other than 0 or -EOPNOTSUPP so that neither allocation branch runs — both conditions are hardware/firmware state the attacker cannot manufacture. The ~100-iteration polling loop gives many attempts per event, but the initiating hardware fault remains outside attacker control.\nPR:L - The consumption side is driven by an unprivileged userspace compute process — event_interrupt_poison_consumption_v11() dispatches on the job's PASID, and /dev/kfd and /dev/dri/renderD* are routinely granted to the render group on ML/HPC and multi-tenant GPU nodes and inside GPU containers. Root is not required (the debugfs ras_ctrl injection interface is merely a more reliable alternate route, and is itself created with world-writable S_IWUGO mode bits).\nUI:N - The double free happens autonomously inside the RAS interrupt handler and the amdgpu_ras_page_retirement_thread kthread once the poison event occurs. No victim action of any kind is needed.\nS:U - The corruption is confined to the host kernel's slab allocator, within the same security authority. The SR-IOV VF branch of amdgpu_umc_poison_handler() bypasses this code entirely, so no guest-to-host or IOMMU boundary is crossed.\nC:H - Beyond the generic UAF read primitive from a double free, there is a concrete disclosure path: the stale err_addr is passed to amdgpu_ras_add_bad_pages() with a persisted err_addr_cnt, copying freed slab contents into con->eh_data->bps, which are then persisted to the RAS EEPROM and readable by any local user through the S_IRUGO gpu_vram_bad_pages sysfs binary attribute.\nI:H - Freeing the same kcalloc'd object twice corrupts the SLUB freelist and, if the object is reallocated between the two frees, releases a live in-use allocation — a standard route to a controlled arbitrary-write primitive. The stale-pointer data additionally drives amdgpu_vram_mgr_reserve_range() and permanent RAS EEPROM writes with garbage retired-page addresses.\nA:H - With CONFIG_SLAB_FREELIST_HARDENED or SLUB debug the double free is detected and panics/BUGs immediately; without it the resulting freelist corruption and use-after-free crash the kernel. Either way the outcome is a full denial of service, compounded by the mode-2 GPU reset already in flight on this path." } ] } ], "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_umc.c" ], "versions": [ { "version": "d38ceaf99ed015f2a0b9af3499791bd3a3daae21", "lessThan": "8e24beb3c2b08a4763f920399a9cc577ed440a1a", "status": "affected", "versionType": "git" }, { "version": "d38ceaf99ed015f2a0b9af3499791bd3a3daae21", "lessThan": "506c245f3f1cd989cb89811a7f06e04ff8813a0d", "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/amd/amdgpu/amdgpu_umc.c" ], "versions": [ { "version": "4.2", "status": "affected" }, { "version": "0", "lessThan": "4.2", "status": "unaffected", "versionType": "semver" }, { "version": "6.9.9", "lessThanOrEqual": "6.9.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.10", "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": "4.2", "versionEndExcluding": "6.9.9" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "6.10" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/8e24beb3c2b08a4763f920399a9cc577ed440a1a" }, { "url": "https://git.kernel.org/stable/c/506c245f3f1cd989cb89811a7f06e04ff8813a0d" } ], "title": "drm/amdgpu: fix double free err_addr pointer warnings", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T04:54:32.545Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/8e24beb3c2b08a4763f920399a9cc577ed440a1a", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/506c245f3f1cd989cb89811a7f06e04ff8813a0d", "tags": [ "x_transferred" ] } ] }, { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2024-42123", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-09-10T16:16:50.921873Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:33:04.953Z" } } ] } }