{"id":"CVE-2025-37738","revision":null,"records":[{"revision":"70e116d1723645a4955218b5ab452062","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-37738","aliases":[],"title":"ext4: ignore xattrs past end","description":"In the Linux kernel, the following vulnerability has been resolved:\n\next4: ignore xattrs past end\n\nOnce inside 'ext4_xattr_inode_dec_ref_all' we should\nignore xattrs entries past the 'end' entry.\n\nThis fixes the following KASAN reported issue:\n\n==================================================================\nBUG: KASAN: slab-use-after-free in ext4_xattr_inode_dec_ref_all+0xb8c/0xe90\nRead of size 4 at addr ffff888012c120c4 by task repro/2065\n\nCPU: 1 UID: 0 PID: 2065 Comm: repro Not tainted 6.13.0-rc2+ #11\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014\nCall Trace:\n \n dump_stack_lvl+0x1fd/0x300\n ? tcp_gro_dev_warn+0x260/0x260\n ? _printk+0xc0/0x100\n ? read_lock_is_recursive+0x10/0x10\n ? irq_work_queue+0x72/0xf0\n ? __virt_addr_valid+0x17b/0x4b0\n print_address_description+0x78/0x390\n print_report+0x107/0x1f0\n ? __virt_addr_valid+0x17b/0x4b0\n ? __virt_addr_valid+0x3ff/0x4b0\n ? __phys_addr+0xb5/0x160\n ? ext4_xattr_inode_dec_ref_all+0xb8c/0xe90\n kasan_report+0xcc/0x100\n ? ext4_xattr_inode_dec_ref_all+0xb8c/0xe90\n ext4_xattr_inode_dec_ref_all+0xb8c/0xe90\n ? ext4_xattr_delete_inode+0xd30/0xd30\n ? __ext4_journal_ensure_credits+0x5f0/0x5f0\n ? __ext4_journal_ensure_credits+0x2b/0x5f0\n ? inode_update_timestamps+0x410/0x410\n ext4_xattr_delete_inode+0xb64/0xd30\n ? ext4_truncate+0xb70/0xdc0\n ? ext4_expand_extra_isize_ea+0x1d20/0x1d20\n ? __ext4_mark_inode_dirty+0x670/0x670\n ? ext4_journal_check_start+0x16f/0x240\n ? ext4_inode_is_fast_symlink+0x2f2/0x3a0\n ext4_evict_inode+0xc8c/0xff0\n ? ext4_inode_is_fast_symlink+0x3a0/0x3a0\n ? do_raw_spin_unlock+0x53/0x8a0\n ? ext4_inode_is_fast_symlink+0x3a0/0x3a0\n evict+0x4ac/0x950\n ? proc_nr_inodes+0x310/0x310\n ? trace_ext4_drop_inode+0xa2/0x220\n ? _raw_spin_unlock+0x1a/0x30\n ? iput+0x4cb/0x7e0\n do_unlinkat+0x495/0x7c0\n ? try_break_deleg+0x120/0x120\n ? 0xffffffff81000000\n ? __check_object_size+0x15a/0x210\n ? strncpy_from_user+0x13e/0x250\n ? getname_flags+0x1dc/0x530\n __x64_sys_unlinkat+0xc8/0xf0\n do_syscall_64+0x65/0x110\n entry_SYSCALL_64_after_hwframe+0x67/0x6f\nRIP: 0033:0x434ffd\nCode: 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 8\nRSP: 002b:00007ffc50fa7b28 EFLAGS: 00000246 ORIG_RAX: 0000000000000107\nRAX: ffffffffffffffda RBX: 00007ffc50fa7e18 RCX: 0000000000434ffd\nRDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000005\nRBP: 00007ffc50fa7be0 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001\nR13: 00007ffc50fa7e08 R14: 00000000004bbf30 R15: 0000000000000001\n \n\nThe buggy address belongs to the object at ffff888012c12000\n which belongs to the cache filp of size 360\nThe buggy address is located 196 bytes inside of\n freed 360-byte region [ffff888012c12000, ffff888012c12168)\n\nThe buggy address belongs to the physical page:\npage: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x12c12\nhead: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0\nflags: 0x40(head|node=0|zone=0)\npage_type: f5(slab)\nraw: 0000000000000040 ffff888000ad7640 ffffea0000497a00 dead000000000004\nraw: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000\nhead: 0000000000000040 ffff888000ad7640 ffffea0000497a00 dead000000000004\nhead: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000\nhead: 0000000000000001 ffffea00004b0481 ffffffffffffffff 0000000000000000\nhead: 0000000000000002 0000000000000000 00000000ffffffff 0000000000000000\npage dumped because: kasan: bad access detected\n\nMemory state around the buggy address:\n ffff888012c11f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n ffff888012c12000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb\n> ffff888012c12080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb\n ^\n ffff888012c12100: fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc\n ffff888012c12180: fc fc fc fc fc fc fc fc fc\n---truncated---","state":0,"publishedAt":"2025-05-01T12:55:47.981+00:00","modifiedAt":"2026-10-15T21:51:59.138+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"unaffected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"fs/ext4/xattr.c\"\n ],\n \"versions\": [\n {\n \"version\": \"e50e5129f384ae282adebfb561189cdb19b81cee\",\n \"lessThan\": \"6aff941cb0f7d0c897c3698ad2e30672709135e3\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"e50e5129f384ae282adebfb561189cdb19b81cee\",\n \"lessThan\": \"76c365fa7e2a8bb85f0190cdb4b8cdc99b2fdce3\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"e50e5129f384ae282adebfb561189cdb19b81cee\",\n \"lessThan\": \"f737418b6de31c962c7192777ee4018906975383\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"e50e5129f384ae282adebfb561189cdb19b81cee\",\n \"lessThan\": \"cf9291a3449b04688b81e32621e88de8f4314b54\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"e50e5129f384ae282adebfb561189cdb19b81cee\",\n \"lessThan\": \"362a90cecd36e8a5c415966d0b75b04a0270e4dd\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"e50e5129f384ae282adebfb561189cdb19b81cee\",\n \"lessThan\": \"eb59cc31b6ea076021d14b04e7faab1636b87d0e\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"e50e5129f384ae282adebfb561189cdb19b81cee\",\n \"lessThan\": \"3bc6317033f365ce578eb6039445fb66162722fd\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"e50e5129f384ae282adebfb561189cdb19b81cee\",\n \"lessThan\": \"836e625b03a666cf93ff5be328c8cb30336db872\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"e50e5129f384ae282adebfb561189cdb19b81cee\",\n \"lessThan\": \"c8e008b60492cf6fd31ef127aea6d02fd3d314cd\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"affected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"fs/ext4/xattr.c\"\n ],\n \"versions\": [\n {\n \"version\": \"4.13\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"4.13\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.4.293\",\n \"lessThanOrEqual\": \"5.4.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.237\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.181\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.135\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.88\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.24\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.13.12\",\n \"lessThanOrEqual\": \"6.13.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.14.3\",\n \"lessThanOrEqual\": \"6.14.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.15\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/6aff941cb0f7d0c897c3698ad2e30672709135e3","https://git.kernel.org/stable/c/76c365fa7e2a8bb85f0190cdb4b8cdc99b2fdce3","https://git.kernel.org/stable/c/f737418b6de31c962c7192777ee4018906975383","https://git.kernel.org/stable/c/cf9291a3449b04688b81e32621e88de8f4314b54","https://git.kernel.org/stable/c/362a90cecd36e8a5c415966d0b75b04a0270e4dd","https://git.kernel.org/stable/c/eb59cc31b6ea076021d14b04e7faab1636b87d0e","https://git.kernel.org/stable/c/3bc6317033f365ce578eb6039445fb66162722fd","https://git.kernel.org/stable/c/836e625b03a666cf93ff5be328c8cb30336db872","https://git.kernel.org/stable/c/c8e008b60492cf6fd31ef127aea6d02fd3d314cd"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-37738","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-37738","identifiers":["CVE-2025-37738"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-09T13:04:36.1502744+00:00","complete":true,"records":1769,"lastAttemptAt":"2026-11-09T13:04:36.1502744+00:00","lastSuccessAt":"2026-11-09T13:04:36.3089681+00:00","error":null,"lastVerifiedAt":"2026-11-09T13:04:36.3089715+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-24e6fde7b744113daefb8f6135035fb8a5c69c9617c9c0d40574a0376532ffd3-bce548cb9713389d6cc2da20d64478978e569c118d9e3817d5449036d2c96da4","complete":true,"records":421424,"lastAttemptAt":"2026-11-09T13:02:24.4919458+00:00","lastSuccessAt":"2026-11-09T13:02:24.4462956+00:00","error":null,"lastVerifiedAt":"2026-11-09T13:02:24.4919458+00:00","snapshotPublishedAt":"2026-11-09T12:31:22+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-b76e3ccc849343a5ba0ff79061dc619e","complete":false,"records":13655,"lastAttemptAt":"2026-11-09T13:09:25.364588+00:00","lastSuccessAt":"2026-11-09T13:09:25.4303168+00:00","error":null,"lastVerifiedAt":"2026-11-09T13:09:25.4303168+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-09T13:04:36.1502744+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-09T13:04:36.1502744+00:00","lastSuccessAt":"2026-11-09T13:04:36.3096956+00:00","error":null,"lastVerifiedAt":"2026-11-09T13:04:36.3096959+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-fec5a400f2004099a6ceb2e015ba7713","complete":true,"records":13667,"lastAttemptAt":"2026-11-09T13:04:37.3410735+00:00","lastSuccessAt":"2026-11-09T13:04:37.338+00:00","error":null,"lastVerifiedAt":"2026-11-09T13:04:37.338+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13707,"expectedIdentifiers":13707,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-980593e6977a6d1b4fb1eed5a1ffe88a468736f89f0a06f710924ad59132c023","complete":true,"records":9914,"lastAttemptAt":"2026-11-09T13:04:36.0102403+00:00","lastSuccessAt":"2026-11-08T11:07:07.068788+00:00","error":null,"lastVerifiedAt":"2026-11-09T13:04:36.0102403+00:00","snapshotPublishedAt":"2026-11-08T11:02:46+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-fde804134ecdda0ddd5ff5c26ee1fff5a6fa659311f7ef2e51c6ad54964db0e2","complete":true,"records":1971,"lastAttemptAt":"2026-11-09T13:02:24.6845928+00:00","lastSuccessAt":"2026-11-06T19:03:17.0399903+00:00","error":null,"lastVerifiedAt":"2026-11-09T13:02:24.6845928+00:00","snapshotPublishedAt":"2026-11-06T18:17:57+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-c905fa1bd26c7b261e77cc7202a86dc766ff31c2b096b501f3bf44f561e34970","complete":true,"records":3063,"lastAttemptAt":"2026-11-09T13:04:36.1177843+00:00","lastSuccessAt":"2026-11-09T12:02:21.7931207+00:00","error":null,"lastVerifiedAt":"2026-11-09T13:04:36.1177843+00:00","snapshotPublishedAt":"2026-11-09T11:18:00+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-3e30324623f4d042faeccbd22ff1ab0b99d8d436d702bf285b288cefe802b265","complete":true,"records":231298,"lastAttemptAt":"2026-11-09T13:04:35.8866798+00:00","lastSuccessAt":"2026-11-09T13:04:34.5744206+00:00","error":null,"lastVerifiedAt":"2026-11-09T13:04:35.8866798+00:00","snapshotPublishedAt":"2026-11-09T12:33:12+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}