{"id":"CVE-2025-68336","revision":null,"records":[{"revision":"028bc3a424a1449588430e6b7e9d1e61","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-68336","aliases":[],"title":"locking/spinlock/debug: Fix data-race in do_raw_write_lock","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nlocking/spinlock/debug: Fix data-race in do_raw_write_lock\n\nKCSAN reports:\n\nBUG: KCSAN: data-race in do_raw_write_lock / do_raw_write_lock\n\nwrite (marked) to 0xffff800009cf504c of 4 bytes by task 1102 on cpu 1:\n do_raw_write_lock+0x120/0x204\n _raw_write_lock_irq\n do_exit\n call_usermodehelper_exec_async\n ret_from_fork\n\nread to 0xffff800009cf504c of 4 bytes by task 1103 on cpu 0:\n do_raw_write_lock+0x88/0x204\n _raw_write_lock_irq\n do_exit\n call_usermodehelper_exec_async\n ret_from_fork\n\nvalue changed: 0xffffffff -> 0x00000001\n\nReported by Kernel Concurrency Sanitizer on:\nCPU: 0 PID: 1103 Comm: kworker/u4:1 6.1.111\n\nCommit 1a365e822372 (\"locking/spinlock/debug: Fix various data races\") has\nadressed most of these races, but seems to be not consistent/not complete.\n\n>From do_raw_write_lock() only debug_write_lock_after() part has been\nconverted to WRITE_ONCE(), but not debug_write_lock_before() part.\nDo it now.","state":0,"publishedAt":"2025-12-22T16:14:13.425+00:00","modifiedAt":"2026-10-16T15:09:43.012+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 \"kernel/locking/spinlock_debug.c\"\n ],\n \"versions\": [\n {\n \"version\": \"1a365e822372ba24c9da0822bc583894f6f3d821\",\n \"lessThan\": \"8e5b2cf10844402054b52b489b525dc30cc16908\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"1a365e822372ba24c9da0822bc583894f6f3d821\",\n \"lessThan\": \"c228cb699a07a5f2d596d186bc5c314c99bb8bbf\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"1a365e822372ba24c9da0822bc583894f6f3d821\",\n \"lessThan\": \"93bd23524d63deb80fb85beb2e43fafeb1043d0f\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"1a365e822372ba24c9da0822bc583894f6f3d821\",\n \"lessThan\": \"39d2ef113416f1a4205b03fb0aa2e428d1412c77\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"1a365e822372ba24c9da0822bc583894f6f3d821\",\n \"lessThan\": \"b163a5e8c703201c905d6ec7920ed79d167e8442\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"1a365e822372ba24c9da0822bc583894f6f3d821\",\n \"lessThan\": \"16b3590c0e1e615757dade098c8fbc0d4f040c76\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"1a365e822372ba24c9da0822bc583894f6f3d821\",\n \"lessThan\": \"396a9270a7b90886be501611b13aa636f2e8c703\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"1a365e822372ba24c9da0822bc583894f6f3d821\",\n \"lessThan\": \"c14ecb555c3ee80eeb030a4e46d00e679537f03a\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"3106fb78d3579c8e9c9b3040f7f7841981919624\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"c0911024ff927ba5c4786b507004cb615be1d776\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"09226e5c38639437565af01e6009a9286a351d04\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"c7673f01604fa722b9d7c1e29e17cec1b8ae09c5\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"c120c3dbeb76305235c8e557f84d9e2d7d0f5933\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"4.4.209\",\n \"lessThan\": \"4.5\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"4.9.209\",\n \"lessThan\": \"4.10\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"4.14.164\",\n \"lessThan\": \"4.15\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"4.19.95\",\n \"lessThan\": \"4.20\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.4.11\",\n \"lessThan\": \"5.5\",\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 \"kernel/locking/spinlock_debug.c\"\n ],\n \"versions\": [\n {\n \"version\": \"5.5\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"5.5\",\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\": \"6.12.62\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.17.12\",\n \"lessThanOrEqual\": \"6.17.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18.1\",\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":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/8e5b2cf10844402054b52b489b525dc30cc16908","https://git.kernel.org/stable/c/c228cb699a07a5f2d596d186bc5c314c99bb8bbf","https://git.kernel.org/stable/c/93bd23524d63deb80fb85beb2e43fafeb1043d0f","https://git.kernel.org/stable/c/39d2ef113416f1a4205b03fb0aa2e428d1412c77","https://git.kernel.org/stable/c/b163a5e8c703201c905d6ec7920ed79d167e8442","https://git.kernel.org/stable/c/16b3590c0e1e615757dade098c8fbc0d4f040c76","https://git.kernel.org/stable/c/396a9270a7b90886be501611b13aa636f2e8c703","https://git.kernel.org/stable/c/c14ecb555c3ee80eeb030a4e46d00e679537f03a"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-68336","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-68336","identifiers":["CVE-2025-68336"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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