{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2025-68740", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-68740", "idYear": 2025, "status": "PUBLISHED", "publishedAt": "2025-12-24T12:09:37.971Z", "updatedAt": "2026-06-16T19:20:31.026Z", "importedAt": "2026-10-24T01:57:44.935Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "ima: Handle error code returned by ima_filter_rule_match()", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nima: Handle error code returned by ima_filter_rule_match()\n\nIn ima_match_rules(), if ima_filter_rule_match() returns -ENOENT due to\nthe rule being NULL, the function incorrectly skips the 'if (!rc)' check\nand sets 'result = true'. The LSM rule is considered a match, causing\nextra files to be measured by IMA.\n\nThis issue can be reproduced in the following scenario:\nAfter unloading the SELinux policy module via 'semodule -d', if an IMA\nmeasurement is triggered before ima_lsm_rules is updated,\nin ima_match_rules(), the first call to ima_filter_rule_match() returns\n-ESTALE. This causes the code to enter the 'if (rc == -ESTALE &&\n!rule_reinitialized)' block, perform ima_lsm_copy_rule() and retry. In\nima_lsm_copy_rule(), since the SELinux module has been removed, the rule\nbecomes NULL, and the second call to ima_filter_rule_match() returns\n-ENOENT. This bypasses the 'if (!rc)' check and results in a false match.\n\nCall trace:\n selinux_audit_rule_match+0x310/0x3b8\n security_audit_rule_match+0x60/0xa0\n ima_match_rules+0x2e4/0x4a0\n ima_match_policy+0x9c/0x1e8\n ima_get_action+0x48/0x60\n process_measurement+0xf8/0xa98\n ima_bprm_check+0x98/0xd8\n security_bprm_check+0x5c/0x78\n search_binary_handler+0x6c/0x318\n exec_binprm+0x58/0x1b8\n bprm_execve+0xb8/0x130\n do_execveat_common.isra.0+0x1a8/0x258\n __arm64_sys_execve+0x48/0x68\n invoke_syscall+0x50/0x128\n el0_svc_common.constprop.0+0xc8/0xf0\n do_el0_svc+0x24/0x38\n el0_svc+0x44/0x200\n el0t_64_sync_handler+0x100/0x130\n el0t_64_sync+0x3c8/0x3d0\n\nFix this by changing 'if (!rc)' to 'if (rc <= 0)' to ensure that error\ncodes like -ENOENT do not bypass the check and accidentally result in a\nsuccessful match.", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "4af4662fa4a9dc62289c580337ae2506339c4729", "status": "affected", "versionType": "git", "lessThan": "d14e0ec6a6828ee0dffa163fb5d513c9a21f0a51" }, { "version": "4af4662fa4a9dc62289c580337ae2506339c4729", "status": "affected", "versionType": "git", "lessThan": "f2f4627b74c120fcdd8e1db93bc91f9bbaf46f85" }, { "version": "4af4662fa4a9dc62289c580337ae2506339c4729", "status": "affected", "versionType": "git", "lessThan": "88cd5fbf5869731be8fc6f7cecb4e0d6ab3d8749" }, { "version": "4af4662fa4a9dc62289c580337ae2506339c4729", "status": "affected", "versionType": "git", "lessThan": "cca3e7df3c0f99542033657ba850b9a6d27f8784" }, { "version": "4af4662fa4a9dc62289c580337ae2506339c4729", "status": "affected", "versionType": "git", "lessThan": "c2238d487a640ae3511e1b6f4640ab27ce10d7f6" }, { "version": "4af4662fa4a9dc62289c580337ae2506339c4729", "status": "affected", "versionType": "git", "lessThan": "de4431faf308d0c533cb386f5fa9af009bc86158" }, { "version": "4af4662fa4a9dc62289c580337ae2506339c4729", "status": "affected", "versionType": "git", "lessThan": "32952c4f4d1b2deb30dce72ba109da808a9018e1" }, { "version": "4af4662fa4a9dc62289c580337ae2506339c4729", "status": "affected", "versionType": "git", "lessThan": "738c9738e690f5cea24a3ad6fd2d9a323cf614f6" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "2.6.30", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "2.6.30" }, { "version": "5.10.248", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.198", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.160", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.6.120", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.12.63", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.12.*" }, { "version": "6.17.13", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.17.*" }, { "version": "6.18.2", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.18.*" }, { "version": "6.19", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }