CVE-2024-42311

{"id": "CVE-2024-42311", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "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": "2024-08-17T09:15:11.147", "references": [{"url": "https://git.kernel.org/stable/c/10f7163bfb5f8b4e0c9c05a939f20b8540e33c65", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/26a2ed107929a855155429b11e1293b83e6b2a8b", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/4a52861cd76e79f1a593beb23d096523eb9732c2", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/58d83fc160505a7009c39dec64effaac5129b971", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/9c4e40b9b731220f9464975e49da75496e3865c4", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/d3493d6f0dfb1ab5225b62faa77732983f2187a1", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/d55aae5c1730d6b70d5d8eaff00113cd34772ea3", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f7316b2b2f11cf0c6de917beee8d3de728be24db", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-908"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhfs: fix to initialize fields of hfs_inode_info after hfs_alloc_inode()\n\nSyzbot reports uninitialized value access issue as below:\n\nloop0: detected capacity change from 0 to 64\n=====================================================\nBUG: KMSAN: uninit-value in hfs_revalidate_dentry+0x307/0x3f0 fs/hfs/sysdep.c:30\n hfs_revalidate_dentry+0x307/0x3f0 fs/hfs/sysdep.c:30\n d_revalidate fs/namei.c:862 [inline]\n lookup_fast+0x89e/0x8e0 fs/namei.c:1649\n walk_component fs/namei.c:2001 [inline]\n link_path_walk+0x817/0x1480 fs/namei.c:2332\n path_lookupat+0xd9/0x6f0 fs/namei.c:2485\n filename_lookup+0x22e/0x740 fs/namei.c:2515\n user_path_at_empty+0x8b/0x390 fs/namei.c:2924\n user_path_at include/linux/namei.h:57 [inline]\n do_mount fs/namespace.c:3689 [inline]\n __do_sys_mount fs/namespace.c:3898 [inline]\n __se_sys_mount+0x66b/0x810 fs/namespace.c:3875\n __x64_sys_mount+0xe4/0x140 fs/namespace.c:3875\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x63/0x6b\n\nBUG: KMSAN: uninit-value in hfs_ext_read_extent fs/hfs/extent.c:196 [inline]\nBUG: KMSAN: uninit-value in hfs_get_block+0x92d/0x1620 fs/hfs/extent.c:366\n hfs_ext_read_extent fs/hfs/extent.c:196 [inline]\n hfs_get_block+0x92d/0x1620 fs/hfs/extent.c:366\n block_read_full_folio+0x4ff/0x11b0 fs/buffer.c:2271\n hfs_read_folio+0x55/0x60 fs/hfs/inode.c:39\n filemap_read_folio+0x148/0x4f0 mm/filemap.c:2426\n do_read_cache_folio+0x7c8/0xd90 mm/filemap.c:3553\n do_read_cache_page mm/filemap.c:3595 [inline]\n read_cache_page+0xfb/0x2f0 mm/filemap.c:3604\n read_mapping_page include/linux/pagemap.h:755 [inline]\n hfs_btree_open+0x928/0x1ae0 fs/hfs/btree.c:78\n hfs_mdb_get+0x260c/0x3000 fs/hfs/mdb.c:204\n hfs_fill_super+0x1fb1/0x2790 fs/hfs/super.c:406\n mount_bdev+0x628/0x920 fs/super.c:1359\n hfs_mount+0xcd/0xe0 fs/hfs/super.c:456\n legacy_get_tree+0x167/0x2e0 fs/fs_context.c:610\n vfs_get_tree+0xdc/0x5d0 fs/super.c:1489\n do_new_mount+0x7a9/0x16f0 fs/namespace.c:3145\n path_mount+0xf98/0x26a0 fs/namespace.c:3475\n do_mount fs/namespace.c:3488 [inline]\n __do_sys_mount fs/namespace.c:3697 [inline]\n __se_sys_mount+0x919/0x9e0 fs/namespace.c:3674\n __ia32_sys_mount+0x15b/0x1b0 fs/namespace.c:3674\n do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]\n __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178\n do_fast_syscall_32+0x37/0x80 arch/x86/entry/common.c:203\n do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:246\n entry_SYSENTER_compat_after_hwframe+0x70/0x82\n\nUninit was created at:\n __alloc_pages+0x9a6/0xe00 mm/page_alloc.c:4590\n __alloc_pages_node include/linux/gfp.h:238 [inline]\n alloc_pages_node include/linux/gfp.h:261 [inline]\n alloc_slab_page mm/slub.c:2190 [inline]\n allocate_slab mm/slub.c:2354 [inline]\n new_slab+0x2d7/0x1400 mm/slub.c:2407\n ___slab_alloc+0x16b5/0x3970 mm/slub.c:3540\n __slab_alloc mm/slub.c:3625 [inline]\n __slab_alloc_node mm/slub.c:3678 [inline]\n slab_alloc_node mm/slub.c:3850 [inline]\n kmem_cache_alloc_lru+0x64d/0xb30 mm/slub.c:3879\n alloc_inode_sb include/linux/fs.h:3018 [inline]\n hfs_alloc_inode+0x5a/0xc0 fs/hfs/super.c:165\n alloc_inode+0x83/0x440 fs/inode.c:260\n new_inode_pseudo fs/inode.c:1005 [inline]\n new_inode+0x38/0x4f0 fs/inode.c:1031\n hfs_new_inode+0x61/0x1010 fs/hfs/inode.c:186\n hfs_mkdir+0x54/0x250 fs/hfs/dir.c:228\n vfs_mkdir+0x49a/0x700 fs/namei.c:4126\n do_mkdirat+0x529/0x810 fs/namei.c:4149\n __do_sys_mkdirat fs/namei.c:4164 [inline]\n __se_sys_mkdirat fs/namei.c:4162 [inline]\n __x64_sys_mkdirat+0xc8/0x120 fs/namei.c:4162\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x63/0x6b\n\nIt missed to initialize .tz_secondswest, .cached_start and .cached_blocks\nfields in struct hfs_inode_info after hfs_alloc_inode(), fix it."}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: hfs: correcci\u00f3n para inicializar campos de hfs_inode_info despu\u00e9s de hfs_alloc_inode() Syzbot informa un problema de acceso a valores no inicializados como se muestra a continuaci\u00f3n: loop0: cambio de capacidad detectado de 0 a 64 ======== ============================================== ERROR: KMSAN: uninit -valor en hfs_revalidate_dentry+0x307/0x3f0 fs/hfs/sysdep.c:30 hfs_revalidate_dentry+0x307/0x3f0 fs/hfs/sysdep.c:30 d_revalidate fs/namei.c:862 [en l\u00ednea] lookup_fast+0x89e/0x8e0 nombrei .c:1649 walk_component fs/namei.c:2001 [en l\u00ednea] link_path_walk+0x817/0x1480 fs/namei.c:2332 path_lookupat+0xd9/0x6f0 fs/namei.c:2485 filename_lookup+0x22e/0x740 fs/namei.c: 2515 user_path_at_empty+0x8b/0x390 fs/namei.c:2924 user_path_at include/linux/namei.h:57 [en l\u00ednea] do_mount fs/namespace.c:3689 [en l\u00ednea] __do_sys_mount fs/namespace.c:3898 [en l\u00ednea] __se_sys_mount+ 0x66b/0x810 fs/namespace.c:3875 __x64_sys_mount+0xe4/0x140 fs/namespace.c:3875 do_syscall_x64 arch/x86/entry/common.c:52 [en l\u00ednea] do_syscall_64+0xcf/0x1e0 arch/x86/entry/common. c:83 Entry_SYSCALL_64_after_hwframe+0x63/0x6b ERROR: KMSAN: valor uninit en hfs_ext_read_extent fs/hfs/extent.c:196 [en l\u00ednea] ERROR: KMSAN: valor uninit en hfs_get_block+0x92d/0x1620 fs/hfs/extent.c: 366 hfs_ext_read_extent fs/hfs/extent.c:196 [en l\u00ednea] hfs_get_block+0x92d/0x1620 fs/hfs/extent.c:366 block_read_full_folio+0x4ff/0x11b0 fs/buffer.c:2271 hfs_read_folio+0x55/0x60 s/inodo .c:39 filemap_read_folio+0x148/0x4f0 mm/filemap.c:2426 do_read_cache_folio+0x7c8/0xd90 mm/filemap.c:3553 do_read_cache_page mm/filemap.c:3595 [en l\u00ednea] read_cache_page+0xfb/0x2f0 mm/filemap.c: 3604 read_mapping_page include/linux/pagemap.h:755 [en l\u00ednea] hfs_btree_open+0x928/0x1ae0 fs/hfs/btree.c:78 hfs_mdb_get+0x260c/0x3000 fs/hfs/mdb.c:204 hfs_fill_super+0x1fb1/0x2790 fs/ hfs /super.c:406 mount_bdev+0x628/0x920 fs/super.c:1359 hfs_mount+0xcd/0xe0 fs/hfs/super.c:456 Legacy_get_tree+0x167/0x2e0 fs/fs_context.c:610 vfs_get_tree+0xdc/0x5d0 fs /super.c:1489 do_new_mount+0x7a9/0x16f0 fs/namespace.c:3145 path_mount+0xf98/0x26a0 fs/namespace.c:3475 do_mount fs/namespace.c:3488 [en l\u00ednea] __do_sys_mount fs/namespace.c:3697 [ en l\u00ednea] __se_sys_mount+0x919/0x9e0 fs/namespace.c:3674 __ia32_sys_mount+0x15b/0x1b0 fs/namespace.c:3674 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [en l\u00ednea] 2/0x100 arco/x86/ Entry/common.c:178 do_fast_syscall_32+0x37/0x80 arch/x86/entry/common.c:203 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:246 Entry_SYSENTER_compat_after_hwframe+0x70/0x82 Uninit se cre\u00f3 en: __alloc_pages +0x9a6/0xe00 mm/page_alloc.c:4590 __alloc_pages_node include/linux/gfp.h:238 [en l\u00ednea] alloc_pages_node include/linux/gfp.h:261 [en l\u00ednea] alloc_slab_page mm/slub.c:2190 [en l\u00ednea] allocate_slab mm /slub.c:2354 [en l\u00ednea] new_slab+0x2d7/0x1400 mm/slub.c:2407 ___slab_alloc+0x16b5/0x3970 mm/slub.c:3540 __slab_alloc mm/slub.c:3625 [en l\u00ednea] __slab_alloc_node mm/slub.c :3678 [en l\u00ednea] slab_alloc_node mm/slub.c:3850 [en l\u00ednea] kmem_cache_alloc_lru+0x64d/0xb30 mm/slub.c:3879 alloc_inode_sb include/linux/fs.h:3018 [en l\u00ednea] hfs_alloc_inode+0x5a/0xc0 fs/hfs/ super.c:165 alloc_inode+0x83/0x440 fs/inode.c:260 new_inode_pseudo fs/inode.c:1005 [en l\u00ednea] new_inode+0x38/0x4f0 fs/inode.c:1031 hfs_new_inode+0x61/0x1010 fs/hfs/inode .c:186 hfs_mkdir+0x54/0x250 fs/hfs/dir.c:228 vfs_mkdir+0x49a/0x700 fs/namei.c:4126 do_mkdirat+0x529/0x810 fs/namei.c:4149 __do_sys_mkdirat fs/namei.c:416 4 [en l\u00ednea] __se_sys_mkdirat fs/namei.c:4162 [en l\u00ednea] __x64_sys_mkdirat+0xc8/0x120 fs/namei.c:4162 do_syscall_x64 arch/x86/entry/common.c:52 [en l\u00ednea] do_syscall_64+0xcf/0x1e0 arch/x86 / Entry/common.c:83 Entry_SYSCALL_64_after_hwframe+0x63/0x6b No pudo inicializar los campos .tz_segundoswest, .cached_start y .cached_blocks en la estructura hfs_inode_info despu\u00e9s de hfs_alloc_inode(), solucionelo."}], "lastModified": "2024-09-03T17:38:24.210", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0B4EF915-550B-45E5-B2CA-648FEACD60FC", "versionEndExcluding": "4.19.320"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A8961D98-9ACF-4188-BA88-44038B14BC28", "versionEndExcluding": "5.4.282", "versionStartIncluding": "4.20"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5CCEDF13-293D-4E64-B501-4409D0365AFE", "versionEndExcluding": "5.10.224", "versionStartIncluding": "5.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B4E2B568-3171-41DE-B519-F2B1A3600D94", "versionEndExcluding": "5.15.165", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E45EAC72-8329-4F99-8276-86AF9BB3496A", "versionEndExcluding": "6.1.103", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CC912330-6B41-4C6B-99AF-F3857FBACB6A", "versionEndExcluding": "6.6.44", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "92D388F2-1EAF-4CFA-AC06-5B26D762EA7D", "versionEndExcluding": "6.10.3", "versionStartIncluding": "6.7"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}