{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-38347",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-04-16T04:51:24.006Z",
        "datePublished": "2025-07-10T08:15:14.907Z",
        "dateUpdated": "2026-05-12T12:04:50.639Z"
    },
    "containers": {
        "cna": {
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                "shortName": "Linux",
                "dateUpdated": "2026-05-11T21:26:14.063Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to do sanity check on ino and xnid\n\nsyzbot reported a f2fs bug as below:\n\nINFO: task syz-executor140:5308 blocked for more than 143 seconds.\n      Not tainted 6.14.0-rc7-syzkaller-00069-g81e4f8d68c66 #0\n\"echo 0 > /proc/sys/kernel/hung_task_timeout_secs\" disables this message.\ntask:syz-executor140 state:D stack:24016 pid:5308  tgid:5308  ppid:5306   task_flags:0x400140 flags:0x00000006\nCall Trace:\n <TASK>\n context_switch kernel/sched/core.c:5378 [inline]\n __schedule+0x190e/0x4c90 kernel/sched/core.c:6765\n __schedule_loop kernel/sched/core.c:6842 [inline]\n schedule+0x14b/0x320 kernel/sched/core.c:6857\n io_schedule+0x8d/0x110 kernel/sched/core.c:7690\n folio_wait_bit_common+0x839/0xee0 mm/filemap.c:1317\n __folio_lock mm/filemap.c:1664 [inline]\n folio_lock include/linux/pagemap.h:1163 [inline]\n __filemap_get_folio+0x147/0xb40 mm/filemap.c:1917\n pagecache_get_page+0x2c/0x130 mm/folio-compat.c:87\n find_get_page_flags include/linux/pagemap.h:842 [inline]\n f2fs_grab_cache_page+0x2b/0x320 fs/f2fs/f2fs.h:2776\n __get_node_page+0x131/0x11b0 fs/f2fs/node.c:1463\n read_xattr_block+0xfb/0x190 fs/f2fs/xattr.c:306\n lookup_all_xattrs fs/f2fs/xattr.c:355 [inline]\n f2fs_getxattr+0x676/0xf70 fs/f2fs/xattr.c:533\n __f2fs_get_acl+0x52/0x870 fs/f2fs/acl.c:179\n f2fs_acl_create fs/f2fs/acl.c:375 [inline]\n f2fs_init_acl+0xd7/0x9b0 fs/f2fs/acl.c:418\n f2fs_init_inode_metadata+0xa0f/0x1050 fs/f2fs/dir.c:539\n f2fs_add_inline_entry+0x448/0x860 fs/f2fs/inline.c:666\n f2fs_add_dentry+0xba/0x1e0 fs/f2fs/dir.c:765\n f2fs_do_add_link+0x28c/0x3a0 fs/f2fs/dir.c:808\n f2fs_add_link fs/f2fs/f2fs.h:3616 [inline]\n f2fs_mknod+0x2e8/0x5b0 fs/f2fs/namei.c:766\n vfs_mknod+0x36d/0x3b0 fs/namei.c:4191\n unix_bind_bsd net/unix/af_unix.c:1286 [inline]\n unix_bind+0x563/0xe30 net/unix/af_unix.c:1379\n __sys_bind_socket net/socket.c:1817 [inline]\n __sys_bind+0x1e4/0x290 net/socket.c:1848\n __do_sys_bind net/socket.c:1853 [inline]\n __se_sys_bind net/socket.c:1851 [inline]\n __x64_sys_bind+0x7a/0x90 net/socket.c:1851\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nLet's dump and check metadata of corrupted inode, it shows its xattr_nid\nis the same to its i_ino.\n\ndump.f2fs -i 3 chaseyu.img.raw\ni_xattr_nid                             [0x       3 : 3]\n\nSo that, during mknod in the corrupted directory, it tries to get and\nlock inode page twice, result in deadlock.\n\n- f2fs_mknod\n - f2fs_add_inline_entry\n  - f2fs_get_inode_page --- lock dir's inode page\n   - f2fs_init_acl\n    - f2fs_acl_create(dir,..)\n     - __f2fs_get_acl\n      - f2fs_getxattr\n       - lookup_all_xattrs\n        - __get_node_page --- try to lock dir's inode page\n\nIn order to fix this, let's add sanity check on ino and xnid."
                }
            ],
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                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/f2fs/inode.c"
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                            "lessThan": "44e904a1ad09e84039058dcbbb1b9ea5b8d7d75d",
                            "status": "affected",
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                            "status": "affected",
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                            "lessThan": "c4029044cc408b149e63db7dc8617a0783a3f10d",
                            "status": "affected",
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                            "status": "affected",
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                            "lessThan": "061cf3a84bde038708eb0f1d065b31b7c2456533",
                            "status": "affected",
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                    ]
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                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/f2fs/inode.c"
                    ],
                    "versions": [
                        {
                            "version": "3.8",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "3.8",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.297",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.241",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.190",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.149",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.95",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.35",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.15.4",
                            "lessThanOrEqual": "6.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.16",
                            "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": "3.8",
                                    "versionEndExcluding": "5.4.297"
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                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                {
                    "url": "https://git.kernel.org/stable/c/061cf3a84bde038708eb0f1d065b31b7c2456533"
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            "title": "f2fs: fix to do sanity check on ino and xnid",
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                "engine": "bippy-1.2.0"
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                "title": "CVE Program Container",
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                        "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
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