CVE-2022-49827

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/gpu/drm/drm_internal.h"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "1d160dfb3fdf11ba9447e862c548447f91f4e74a", "status": "affected", "version": "5e6c2b4f916157e8f10d093d43e88b2a250d1774", "versionType": "git"}, {"lessThan": "e884a6c2d49a6c12761e5bed851e9fe93bd923a1", "status": "affected", "version": "5e6c2b4f916157e8f10d093d43e88b2a250d1774", "versionType": "git"}, {"lessThan": "3acd2016421b2e628acad65495d15493bf7a3bc3", "status": "affected", "version": "5e6c2b4f916157e8f10d093d43e88b2a250d1774", "versionType": "git"}, {"lessThan": "4979524f5a2a8210e87fde2f642b0dc060860821", "status": "affected", "version": "5e6c2b4f916157e8f10d093d43e88b2a250d1774", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/gpu/drm/drm_internal.h"], "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": "5.10.156", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.80", "versionType": "semver"}, {"lessThanOrEqual": "6.0.*", "status": "unaffected", "version": "6.0.10", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.1", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "169D89E4-6BEF-43D4-A0B5-35B3BA704553", "versionEndExcluding": "5.10.156", "versionStartIncluding": "5.9", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "51BBEF3B-79F5-4D4C-ADBA-F34DA0E2465C", "versionEndExcluding": "5.15.80", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "64F9ADD1-3ADB-4D66-A00F-4A83010B05F0", "versionEndExcluding": "6.0.10", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*", "matchCriteriaId": "E7E331DA-1FB0-4DEC-91AC-7DA69D461C11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*", "matchCriteriaId": "17F0B248-42CF-4AE6-A469-BB1BAE7F4705", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*", "matchCriteriaId": "E2422816-0C14-4B5E-A1E6-A9D776E5C49B", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*", "matchCriteriaId": "1C6E00FE-5FB9-4D20-A1A1-5A32128F9B76", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:*", "matchCriteriaId": "35B26BE4-43A6-4A36-A7F6-5B3F572D9186", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm: Fix potential null-ptr-deref in drm_vblank_destroy_worker()\n\ndrm_vblank_init() call drmm_add_action_or_reset() with\ndrm_vblank_init_release() as action. If __drmm_add_action() failed, will\ndirectly call drm_vblank_init_release() with the vblank whose worker is\nNULL. As the resule, a null-ptr-deref will happen in\nkthread_destroy_worker(). Add the NULL check before calling\ndrm_vblank_destroy_worker().\n\nBUG: null-ptr-deref\nKASAN: null-ptr-deref in range [0x0000000000000068-0x000000000000006f]\nCPU: 5 PID: 961 Comm: modprobe Not tainted 6.0.0-11331-gd465bff130bf-dirty\nRIP: 0010:kthread_destroy_worker+0x25/0xb0\n Call Trace:\n <TASK>\n drm_vblank_init_release+0x124/0x220 [drm]\n ? drm_crtc_vblank_restore+0x8b0/0x8b0 [drm]\n __drmm_add_action_or_reset+0x41/0x50 [drm]\n drm_vblank_init+0x282/0x310 [drm]\n vkms_init+0x35f/0x1000 [vkms]\n ? 0xffffffffc4508000\n ? lock_is_held_type+0xd7/0x130\n ? __kmem_cache_alloc_node+0x1c2/0x2b0\n ? lock_is_held_type+0xd7/0x130\n ? 0xffffffffc4508000\n do_one_initcall+0xd0/0x4f0\n ...\n do_syscall_64+0x35/0x80\n entry_SYSCALL_64_after_hwframe+0x46/0xb0"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm: Se corrige la posible desreferencia PTR nula en la llamada drm_vblank_destroy_worker(). drm_vblank_init() llama a drmm_add_action_or_reset() con la acci\u00f3n drm_vblank_init_release(). Si __drmm_add_action() falla, se llamar\u00e1 directamente a drm_vblank_init_release() con el vblank cuyo trabajador sea NULL. Como resultado, se producir\u00e1 una desreferencia PTR nula en kthread_destroy_worker(). Se a\u00f1ade la comprobaci\u00f3n de valores NULL antes de llamar a drm_vblank_destroy_worker(). ERROR: null-ptr-deref KASAN: null-ptr-deref en el rango [0x0000000000000068-0x000000000000006f] CPU: 5 PID: 961 Comm: modprobe No contaminado 6.0.0-11331-gd465bff130bf-dirty RIP: 0010:kthread_destroy_worker+0x25/0xb0 Seguimiento de llamadas: drm_vblank_init_release+0x124/0x220 [drm] ? drm_crtc_vblank_restore+0x8b0/0x8b0 [drm] __drmm_add_action_or_reset+0x41/0x50 [drm] drm_vblank_init+0x282/0x310 [drm] vkms_init+0x35f/0x1000 [vkms] ? 0xffffffffc4508000 ? lock_is_held_type+0xd7/0x130 ? __kmem_cache_alloc_node+0x1c2/0x2b0 ? lock_is_held_type+0xd7/0x130 ? 0xffffffffc4508000 do_one_initcall+0xd0/0x4f0 ... do_syscall_64+0x35/0x80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 "}], "id": "CVE-2022-49827", "lastModified": "2026-11-05T20:17:14.913", "metrics": {"cvssMetricV31": [{"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"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-49827", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-05T19:50:08.629890Z", "version": "2.0.3"}}]}, "published": "2025-05-01T15:16:06.150", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1d160dfb3fdf11ba9447e862c548447f91f4e74a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3acd2016421b2e628acad65495d15493bf7a3bc3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4979524f5a2a8210e87fde2f642b0dc060860821"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e884a6c2d49a6c12761e5bed851e9fe93bd923a1"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: drm: Fix potential null-ptr-deref in drm_vblank_destroy_worker()", "id": "2363409", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2363409"}, "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"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndrm: Fix potential null-ptr-deref in drm_vblank_destroy_worker()\ndrm_vblank_init() call drmm_add_action_or_reset() with\ndrm_vblank_init_release() as action. If __drmm_add_action() failed, will\ndirectly call drm_vblank_init_release() with the vblank whose worker is\nNULL. As the resule, a null-ptr-deref will happen in\nkthread_destroy_worker(). Add the NULL check before calling\ndrm_vblank_destroy_worker().\nBUG: null-ptr-deref\nKASAN: null-ptr-deref in range [0x0000000000000068-0x000000000000006f]\nCPU: 5 PID: 961 Comm: modprobe Not tainted 6.0.0-11331-gd465bff130bf-dirty\nRIP: 0010:kthread_destroy_worker+0x25/0xb0\nCall Trace:\n<TASK>\ndrm_vblank_init_release+0x124/0x220 [drm]\n? drm_crtc_vblank_restore+0x8b0/0x8b0 [drm]\n__drmm_add_action_or_reset+0x41/0x50 [drm]\ndrm_vblank_init+0x282/0x310 [drm]\nvkms_init+0x35f/0x1000 [vkms]\n? 0xffffffffc4508000\n? lock_is_held_type+0xd7/0x130\n? __kmem_cache_alloc_node+0x1c2/0x2b0\n? lock_is_held_type+0xd7/0x130\n? 0xffffffffc4508000\ndo_one_initcall+0xd0/0x4f0\n...\ndo_syscall_64+0x35/0x80\nentry_SYSCALL_64_after_hwframe+0x46/0xb0"], "name": "CVE-2022-49827", "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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "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"}], "public_date": "2025-05-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49827\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49827\nhttps://lore.kernel.org/linux-cve-announce/2025050135-CVE-2022-49827-f7bc@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-07-12T16:01:17.001442+00:00", "updated": "2025-07-12T16:01:17.001590+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}