{ "data_version": "4.0", "data_type": "CVE", "data_format": "MITRE", "CVE_data_meta": { "ID": "CVE-2024-42311", "ASSIGNER": "cve@kernel.org", "STATE": "PUBLIC" }, "description": { "description_data": [ { "lang": "eng", "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." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "affects": { "vendor": { "vendor_data": [ { "vendor_name": "Linux", "product": { "product_data": [ { "product_name": "Linux", "version": { "version_data": [ { "version_affected": "<", "version_name": "1da177e4c3f4", "version_value": "f7316b2b2f11" }, { "version_value": "not down converted", "x_cve_json_5_version_data": { "versions": [ { "version": "4.19.320", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.4.282", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.10.224", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.15.165", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.1.103", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.6.44", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.10.3", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.11", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ], "defaultStatus": "affected" } } ] } } ] } } ] } }, "references": { "reference_data": [ { "url": "https://git.kernel.org/stable/c/f7316b2b2f11cf0c6de917beee8d3de728be24db", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/f7316b2b2f11cf0c6de917beee8d3de728be24db" }, { "url": "https://git.kernel.org/stable/c/4a52861cd76e79f1a593beb23d096523eb9732c2", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/4a52861cd76e79f1a593beb23d096523eb9732c2" }, { "url": "https://git.kernel.org/stable/c/10f7163bfb5f8b4e0c9c05a939f20b8540e33c65", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/10f7163bfb5f8b4e0c9c05a939f20b8540e33c65" }, { "url": "https://git.kernel.org/stable/c/d55aae5c1730d6b70d5d8eaff00113cd34772ea3", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/d55aae5c1730d6b70d5d8eaff00113cd34772ea3" }, { "url": "https://git.kernel.org/stable/c/58d83fc160505a7009c39dec64effaac5129b971", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/58d83fc160505a7009c39dec64effaac5129b971" }, { "url": "https://git.kernel.org/stable/c/9c4e40b9b731220f9464975e49da75496e3865c4", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/9c4e40b9b731220f9464975e49da75496e3865c4" }, { "url": "https://git.kernel.org/stable/c/d3493d6f0dfb1ab5225b62faa77732983f2187a1", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/d3493d6f0dfb1ab5225b62faa77732983f2187a1" }, { "url": "https://git.kernel.org/stable/c/26a2ed107929a855155429b11e1293b83e6b2a8b", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/26a2ed107929a855155429b11e1293b83e6b2a8b" } ] }, "generator": { "engine": "bippy-c9c4e1df01b2" } }