{"id":"CVE-2025-37823","revision":null,"records":[{"revision":"6033a2fdebcd488f8f43f739bf791fbe","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-37823","aliases":[],"title":"net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too\n\nSimilarly to the previous patch, we need to safe guard hfsc_dequeue()\ntoo. But for this one, we don't have a reliable reproducer.","state":0,"publishedAt":"2025-05-08T06:26:16.839+00:00","modifiedAt":"2026-10-15T21:52:01.491+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 \"net/sched/sch_hfsc.c\"\n ],\n \"versions\": [\n {\n \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\n \"lessThan\": \"68f256305ceb426d545a0dc31f83c2ab1d211a1e\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\n \"lessThan\": \"2f46d14919c39528c6e540ebc43f90055993eedc\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\n \"lessThan\": \"da7936518996d290e2fcfcaf6cd7e15bfd87804a\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\n \"lessThan\": \"11bccb054c1462fb069219f8e98e97a5a730758e\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\n \"lessThan\": \"76c4c22c2437d3d3880efc0f62eca06ef078d290\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\n \"lessThan\": \"c6f035044104c6ff656f4565cd22938dc892528c\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\n \"lessThan\": \"c6936266f8bf98a53f28ef9a820e6a501e946d09\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\n \"lessThan\": \"6ccbda44e2cc3d26fd22af54c650d6d5d801addf\",\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 \"net/sched/sch_hfsc.c\"\n ],\n \"versions\": [\n {\n \"version\": \"2.6.12\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"2.6.12\",\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\": \"6.1.136\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.89\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.26\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.14.5\",\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/68f256305ceb426d545a0dc31f83c2ab1d211a1e","https://git.kernel.org/stable/c/2f46d14919c39528c6e540ebc43f90055993eedc","https://git.kernel.org/stable/c/da7936518996d290e2fcfcaf6cd7e15bfd87804a","https://git.kernel.org/stable/c/11bccb054c1462fb069219f8e98e97a5a730758e","https://git.kernel.org/stable/c/76c4c22c2437d3d3880efc0f62eca06ef078d290","https://git.kernel.org/stable/c/c6f035044104c6ff656f4565cd22938dc892528c","https://git.kernel.org/stable/c/c6936266f8bf98a53f28ef9a820e6a501e946d09","https://git.kernel.org/stable/c/6ccbda44e2cc3d26fd22af54c650d6d5d801addf"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-37823","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-37823","identifiers":["CVE-2025-37823"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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