CVE-2024-53049

{"id": "CVE-2024-53049", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "[email protected]", "cvssData": {"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"}, "impactScore": 3.6, "exploitabilityScore": 1.8}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"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"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2024-11-19T18:15:25.190", "references": [{"url": "https://git.kernel.org/stable/c/2b059d0d1e624adc6e69a754bc48057f8bf459dc", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/79aea7dfd98fbbf282d1408fc21849fc9a677768", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nslub/kunit: fix a WARNING due to unwrapped __kmalloc_cache_noprof\n\n'modprobe slub_kunit' will have a warning as shown below. The root cause\nis that __kmalloc_cache_noprof was directly used, which resulted in no\nalloc_tag being allocated. This caused current->alloc_tag to be null,\nleading to a warning in alloc_tag_add_check.\n\nLet's add an alloc_hook layer to __kmalloc_cache_noprof specifically\nwithin lib/slub_kunit.c, which is the only user of this internal slub\nfunction outside kmalloc implementation itself.\n\n[58162.947016] WARNING: CPU: 2 PID: 6210 at\n./include/linux/alloc_tag.h:125 alloc_tagging_slab_alloc_hook+0x268/0x27c\n[58162.957721] Call trace:\n[58162.957919] alloc_tagging_slab_alloc_hook+0x268/0x27c\n[58162.958286] __kmalloc_cache_noprof+0x14c/0x344\n[58162.958615] test_kmalloc_redzone_access+0x50/0x10c [slub_kunit]\n[58162.959045] kunit_try_run_case+0x74/0x184 [kunit]\n[58162.959401] kunit_generic_run_threadfn_adapter+0x2c/0x4c [kunit]\n[58162.959841] kthread+0x10c/0x118\n[58162.960093] ret_from_fork+0x10/0x20\n[58162.960363] ---[ end trace 0000000000000000 ]---"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: slub/kunit: se corrige una ADVERTENCIA debido a que __kmalloc_cache_noprof sin encapsular 'modprobe slub_kunit' tendr\u00e1 una advertencia como la que se muestra a continuaci\u00f3n. La causa principal es que se utiliz\u00f3 __kmalloc_cache_noprof directamente, lo que result\u00f3 en que no se asignara alloc_tag. Esto provoc\u00f3 que current->alloc_tag fuera nulo, lo que gener\u00f3 una advertencia en alloc_tag_add_check. Agreguemos una capa alloc_hook a __kmalloc_cache_noprof espec\u00edficamente dentro de lib/slub_kunit.c, que es el \u00fanico usuario de esta funci\u00f3n slub interna fuera de la implementaci\u00f3n de kmalloc en s\u00ed. [58162.947016] ADVERTENCIA: CPU: 2 PID: 6210 en ./include/linux/alloc_tag.h:125 alloc_tagging_slab_alloc_hook+0x268/0x27c [58162.957721] Rastreo de llamadas: [58162.957919] alloc_tagging_slab_alloc_hook+0x268/0x27c [58162.958286] __kmalloc_cache_noprof+0x14c/0x344 [58162.958615] test_kmalloc_redzone_access+0x50/0x10c [slub_kunit] [58162.959045] kunit_try_run_case+0x74/0x184 [kunit] [58162.959401] kunit_generic_run_threadfn_adapter+0x2c/0x4c [kunit] [58162.959841] kthread+0x10c/0x118 [58162.960093] ret_from_fork+0x10/0x20 [58162.960363] ---[ fin de seguimiento 0000000000000000 ]---"}], "lastModified": "2025-10-01T21:16:22.043", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "386941FE-51A4-4893-9EC3-054AD3863E8D", "versionEndExcluding": "6.11.7", "versionStartIncluding": "6.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7F361E1D-580F-4A2D-A509-7615F73167A1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "925478D0-3E3D-4E6F-ACD5-09F28D5DF82C"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3C95E234-D335-4B6C-96BF-E2CEBD8654ED"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E0F717D8-3014-4F84-8086-0124B2111379"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "24DBE6C7-2AAE-4818-AED2-E131F153D2FA"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}