{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2025-68740", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-24T10:30:51.030Z", "datePublished": "2025-12-24T12:09:37.971Z", "dateUpdated": "2026-06-16T19:20:31.026Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T21:52:25.762Z" }, "descriptions": [ { "lang": "en", "value": "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": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "security/integrity/ima/ima_policy.c" ], "versions": [ { "version": "4af4662fa4a9dc62289c580337ae2506339c4729", "lessThan": "d14e0ec6a6828ee0dffa163fb5d513c9a21f0a51", "status": "affected", "versionType": "git" }, { "version": "4af4662fa4a9dc62289c580337ae2506339c4729", "lessThan": "f2f4627b74c120fcdd8e1db93bc91f9bbaf46f85", "status": "affected", "versionType": "git" }, { "version": "4af4662fa4a9dc62289c580337ae2506339c4729", "lessThan": "88cd5fbf5869731be8fc6f7cecb4e0d6ab3d8749", "status": "affected", "versionType": "git" }, { "version": "4af4662fa4a9dc62289c580337ae2506339c4729", "lessThan": "cca3e7df3c0f99542033657ba850b9a6d27f8784", "status": "affected", "versionType": "git" }, { "version": "4af4662fa4a9dc62289c580337ae2506339c4729", "lessThan": "c2238d487a640ae3511e1b6f4640ab27ce10d7f6", "status": "affected", "versionType": "git" }, { "version": "4af4662fa4a9dc62289c580337ae2506339c4729", "lessThan": "de4431faf308d0c533cb386f5fa9af009bc86158", "status": "affected", "versionType": "git" }, { "version": "4af4662fa4a9dc62289c580337ae2506339c4729", "lessThan": "32952c4f4d1b2deb30dce72ba109da808a9018e1", "status": "affected", "versionType": "git" }, { "version": "4af4662fa4a9dc62289c580337ae2506339c4729", "lessThan": "738c9738e690f5cea24a3ad6fd2d9a323cf614f6", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "security/integrity/ima/ima_policy.c" ], "versions": [ { "version": "2.6.30", "status": "affected" }, { "version": "0", "lessThan": "2.6.30", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.248", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.198", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.160", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.120", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.63", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.17.13", "lessThanOrEqual": "6.17.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.2", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.19", "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": "2.6.30", "versionEndExcluding": "5.10.248" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "5.15.198" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "6.1.160" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "6.6.120" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "6.12.63" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "6.17.13" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "6.18.2" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "6.19" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/d14e0ec6a6828ee0dffa163fb5d513c9a21f0a51" }, { "url": "https://git.kernel.org/stable/c/f2f4627b74c120fcdd8e1db93bc91f9bbaf46f85" }, { "url": "https://git.kernel.org/stable/c/88cd5fbf5869731be8fc6f7cecb4e0d6ab3d8749" }, { "url": "https://git.kernel.org/stable/c/cca3e7df3c0f99542033657ba850b9a6d27f8784" }, { "url": "https://git.kernel.org/stable/c/c2238d487a640ae3511e1b6f4640ab27ce10d7f6" }, { "url": "https://git.kernel.org/stable/c/de4431faf308d0c533cb386f5fa9af009bc86158" }, { "url": "https://git.kernel.org/stable/c/32952c4f4d1b2deb30dce72ba109da808a9018e1" }, { "url": "https://git.kernel.org/stable/c/738c9738e690f5cea24a3ad6fd2d9a323cf614f6" } ], "title": "ima: Handle error code returned by ima_filter_rule_match()", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-06-16T19:20:20.279928Z", "id": "CVE-2025-68740", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-16T19:20:31.026Z" } } ] } }