{"id":"CVE-2025-68820","revision":null,"records":[{"revision":"ea88a9b5c3e74ff18d441018ebe9c445","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-68820","aliases":[],"title":"ext4: xattr: fix null pointer deref in ext4_raw_inode()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\next4: xattr: fix null pointer deref in ext4_raw_inode()\n\nIf ext4_get_inode_loc() fails (e.g. if it returns -EFSCORRUPTED),\niloc.bh will remain set to NULL. Since ext4_xattr_inode_dec_ref_all()\nlacks error checking, this will lead to a null pointer dereference\nin ext4_raw_inode(), called right after ext4_get_inode_loc().\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE.","state":0,"publishedAt":"2026-01-13T15:29:23.351+00:00","modifiedAt":"2026-10-19T18:15:10.329+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\": \"76c365fa7e2a8bb85f0190cdb4b8cdc99b2fdce3\",\n \"lessThan\": \"b72a3476f0c97d02f63a6e9fff127348d55436f6\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"f737418b6de31c962c7192777ee4018906975383\",\n \"lessThan\": \"3d8d22e75f7edfa0b30ff27330fd6a1285d594c3\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"cf9291a3449b04688b81e32621e88de8f4314b54\",\n \"lessThan\": \"190ad0f22ba49f1101182b80e3af50ca2ddfe72f\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"362a90cecd36e8a5c415966d0b75b04a0270e4dd\",\n \"lessThan\": \"b5d942922182e82724b7152cb998f540132885ec\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"eb59cc31b6ea076021d14b04e7faab1636b87d0e\",\n \"lessThan\": \"5b154e901fda2e98570b8f426a481f5740097dc2\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"c8e008b60492cf6fd31ef127aea6d02fd3d314cd\",\n \"lessThan\": \"ce5f54c065a4a7cbb92787f4f140917112350142\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"c8e008b60492cf6fd31ef127aea6d02fd3d314cd\",\n \"lessThan\": \"b97cb7d6a051aa6ebd57906df0e26e9e36c26d14\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"6aff941cb0f7d0c897c3698ad2e30672709135e3\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"3bc6317033f365ce578eb6039445fb66162722fd\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"836e625b03a666cf93ff5be328c8cb30336db872\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"5.10.237\",\n \"lessThan\": \"5.10.248\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.181\",\n \"lessThan\": \"5.15.198\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.135\",\n \"lessThan\": \"6.1.160\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.88\",\n \"lessThan\": \"6.6.120\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.24\",\n \"lessThan\": \"6.12.64\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.4.293\",\n \"lessThan\": \"5.5\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.13.12\",\n \"lessThan\": \"6.14\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.14.3\",\n \"lessThan\": \"6.15\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\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\": \"6.15\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"6.15\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.248\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.198\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.160\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.120\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.64\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18.3\",\n \"lessThanOrEqual\": \"6.18.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.19\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/b72a3476f0c97d02f63a6e9fff127348d55436f6","https://git.kernel.org/stable/c/3d8d22e75f7edfa0b30ff27330fd6a1285d594c3","https://git.kernel.org/stable/c/190ad0f22ba49f1101182b80e3af50ca2ddfe72f","https://git.kernel.org/stable/c/b5d942922182e82724b7152cb998f540132885ec","https://git.kernel.org/stable/c/5b154e901fda2e98570b8f426a481f5740097dc2","https://git.kernel.org/stable/c/ce5f54c065a4a7cbb92787f4f140917112350142","https://git.kernel.org/stable/c/b97cb7d6a051aa6ebd57906df0e26e9e36c26d14"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-68820","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-68820","identifiers":["CVE-2025-68820"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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