CVE-2025-68336

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-68336", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-16T14:48:05.297Z", "datePublished": "2025-12-22T16:14:13.425Z", "dateUpdated": "2026-10-16T15:09:43.012Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:10:54.280Z"}, "descriptions": [{"lang": "en", "value": "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."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:N - An unauthenticated remote peer can open and terminate concurrent TCP/445 connections to an enabled ksmbd server; its per-connection kthreads exit through do_exit(), tasklist_lock, and do_raw_write_lock().\nAC:L - The attacker controls both sides of the race using simultaneous connections and can repeat attempts until it occurs, without requiring victim-controlled state.\nPR:N - Ksmbd creates connection-handler threads before SMB authentication, so the remote attacker requires neither an account nor kernel privileges.\nUI:N - Once the server is listening, remote connections trigger the complete vulnerable path without victim interaction.\nS:U - A resulting kernel panic or lockup affects the same host security authority and does not cross a virtualization or sandbox boundary.\nC:N - The race concerns in-bounds debug owner bookkeeping and provides no memory-disclosure or arbitrary-read primitive.\nI:N - The actual rwlock and protected data are not corrupted; the fix only annotates existing reads and does not address an overwrite, use-after-free, or control-flow primitive.\nA:H - On DEBUG_SPINLOCK and KCSAN builds, repeated races can generate reports that panic through panic_on_warn or deadlock the console, causing complete system unavailability."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/locking/spinlock_debug.c"], "versions": [{"version": "1a365e822372ba24c9da0822bc583894f6f3d821", "lessThan": "8e5b2cf10844402054b52b489b525dc30cc16908", "status": "affected", "versionType": "git"}, {"version": "1a365e822372ba24c9da0822bc583894f6f3d821", "lessThan": "c228cb699a07a5f2d596d186bc5c314c99bb8bbf", "status": "affected", "versionType": "git"}, {"version": "1a365e822372ba24c9da0822bc583894f6f3d821", "lessThan": "93bd23524d63deb80fb85beb2e43fafeb1043d0f", "status": "affected", "versionType": "git"}, {"version": "1a365e822372ba24c9da0822bc583894f6f3d821", "lessThan": "39d2ef113416f1a4205b03fb0aa2e428d1412c77", "status": "affected", "versionType": "git"}, {"version": "1a365e822372ba24c9da0822bc583894f6f3d821", "lessThan": "b163a5e8c703201c905d6ec7920ed79d167e8442", "status": "affected", "versionType": "git"}, {"version": "1a365e822372ba24c9da0822bc583894f6f3d821", "lessThan": "16b3590c0e1e615757dade098c8fbc0d4f040c76", "status": "affected", "versionType": "git"}, {"version": "1a365e822372ba24c9da0822bc583894f6f3d821", "lessThan": "396a9270a7b90886be501611b13aa636f2e8c703", "status": "affected", "versionType": "git"}, {"version": "1a365e822372ba24c9da0822bc583894f6f3d821", "lessThan": "c14ecb555c3ee80eeb030a4e46d00e679537f03a", "status": "affected", "versionType": "git"}, {"version": "3106fb78d3579c8e9c9b3040f7f7841981919624", "status": "affected", "versionType": "git"}, {"version": "c0911024ff927ba5c4786b507004cb615be1d776", "status": "affected", "versionType": "git"}, {"version": "09226e5c38639437565af01e6009a9286a351d04", "status": "affected", "versionType": "git"}, {"version": "c7673f01604fa722b9d7c1e29e17cec1b8ae09c5", "status": "affected", "versionType": "git"}, {"version": "c120c3dbeb76305235c8e557f84d9e2d7d0f5933", "status": "affected", "versionType": "git"}, {"version": "4.4.209", "lessThan": "4.5", "status": "affected", "versionType": "semver"}, {"version": "4.9.209", "lessThan": "4.10", "status": "affected", "versionType": "semver"}, {"version": "4.14.164", "lessThan": "4.15", "status": "affected", "versionType": "semver"}, {"version": "4.19.95", "lessThan": "4.20", "status": "affected", "versionType": "semver"}, {"version": "5.4.11", "lessThan": "5.5", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/locking/spinlock_debug.c"], "versions": [{"version": "5.5", "status": "affected"}, {"version": "0", "lessThan": "5.5", "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": "6.12.62", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.17.12", "lessThanOrEqual": "6.17.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.1", "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": "5.5", "versionEndExcluding": "5.10.248"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "5.15.198"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.1.160"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.6.120"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.12.62"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.17.12"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.18.1"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.19"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.4.209"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9.209"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14.164"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19.95"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4.11"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/8e5b2cf10844402054b52b489b525dc30cc16908"}, {"url": "https://git.kernel.org/stable/c/c228cb699a07a5f2d596d186bc5c314c99bb8bbf"}, {"url": "https://git.kernel.org/stable/c/93bd23524d63deb80fb85beb2e43fafeb1043d0f"}, {"url": "https://git.kernel.org/stable/c/39d2ef113416f1a4205b03fb0aa2e428d1412c77"}, {"url": "https://git.kernel.org/stable/c/b163a5e8c703201c905d6ec7920ed79d167e8442"}, {"url": "https://git.kernel.org/stable/c/16b3590c0e1e615757dade098c8fbc0d4f040c76"}, {"url": "https://git.kernel.org/stable/c/396a9270a7b90886be501611b13aa636f2e8c703"}, {"url": "https://git.kernel.org/stable/c/c14ecb555c3ee80eeb030a4e46d00e679537f03a"}], "title": "locking/spinlock/debug: Fix data-race in do_raw_write_lock", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-68336", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-16T15:04:42.942439Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-16T15:09:43.012Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-68336", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-16T15:04:42.942439Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-16T15:04:43.754Z"}}], "cna": {"title": "locking/spinlock/debug: Fix data-race in do_raw_write_lock", "metrics": [{"cvssV3_1": {"version": "3.1", "baseScore": 7.5, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}, "scenarios": [{"lang": "en", "value": "AV:N - An unauthenticated remote peer can open and terminate concurrent TCP/445 connections to an enabled ksmbd server; its per-connection kthreads exit through do_exit(), tasklist_lock, and do_raw_write_lock().\nAC:L - The attacker controls both sides of the race using simultaneous connections and can repeat attempts until it occurs, without requiring victim-controlled state.\nPR:N - Ksmbd creates connection-handler threads before SMB authentication, so the remote attacker requires neither an account nor kernel privileges.\nUI:N - Once the server is listening, remote connections trigger the complete vulnerable path without victim interaction.\nS:U - A resulting kernel panic or lockup affects the same host security authority and does not cross a virtualization or sandbox boundary.\nC:N - The race concerns in-bounds debug owner bookkeeping and provides no memory-disclosure or arbitrary-read primitive.\nI:N - The actual rwlock and protected data are not corrupted; the fix only annotates existing reads and does not address an overwrite, use-after-free, or control-flow primitive.\nA:H - On DEBUG_SPINLOCK and KCSAN builds, repeated races can generate reports that panic through panic_on_warn or deadlock the console, causing complete system unavailability."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "1a365e822372ba24c9da0822bc583894f6f3d821", "lessThan": "8e5b2cf10844402054b52b489b525dc30cc16908", "versionType": "git"}, {"status": "affected", "version": "1a365e822372ba24c9da0822bc583894f6f3d821", "lessThan": "c228cb699a07a5f2d596d186bc5c314c99bb8bbf", "versionType": "git"}, {"status": "affected", "version": "1a365e822372ba24c9da0822bc583894f6f3d821", "lessThan": "93bd23524d63deb80fb85beb2e43fafeb1043d0f", "versionType": "git"}, {"status": "affected", "version": "1a365e822372ba24c9da0822bc583894f6f3d821", "lessThan": "39d2ef113416f1a4205b03fb0aa2e428d1412c77", "versionType": "git"}, {"status": "affected", "version": "1a365e822372ba24c9da0822bc583894f6f3d821", "lessThan": "b163a5e8c703201c905d6ec7920ed79d167e8442", "versionType": "git"}, {"status": "affected", "version": "1a365e822372ba24c9da0822bc583894f6f3d821", "lessThan": "16b3590c0e1e615757dade098c8fbc0d4f040c76", "versionType": "git"}, {"status": "affected", "version": "1a365e822372ba24c9da0822bc583894f6f3d821", "lessThan": "396a9270a7b90886be501611b13aa636f2e8c703", "versionType": "git"}, {"status": "affected", "version": "1a365e822372ba24c9da0822bc583894f6f3d821", "lessThan": "c14ecb555c3ee80eeb030a4e46d00e679537f03a", "versionType": "git"}, {"status": "affected", "version": "3106fb78d3579c8e9c9b3040f7f7841981919624", "versionType": "git"}, {"status": "affected", "version": "c0911024ff927ba5c4786b507004cb615be1d776", "versionType": "git"}, {"status": "affected", "version": "09226e5c38639437565af01e6009a9286a351d04", "versionType": "git"}, {"status": "affected", "version": "c7673f01604fa722b9d7c1e29e17cec1b8ae09c5", "versionType": "git"}, {"status": "affected", "version": "c120c3dbeb76305235c8e557f84d9e2d7d0f5933", "versionType": "git"}, {"status": "affected", "version": "4.4.209", "lessThan": "4.5", "versionType": "semver"}, {"status": "affected", "version": "4.9.209", "lessThan": "4.10", "versionType": "semver"}, {"status": "affected", "version": "4.14.164", "lessThan": "4.15", "versionType": "semver"}, {"status": "affected", "version": "4.19.95", "lessThan": "4.20", "versionType": "semver"}, {"status": "affected", "version": "5.4.11", "lessThan": "5.5", "versionType": "semver"}], "programFiles": ["kernel/locking/spinlock_debug.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.5"}, {"status": "unaffected", "version": "0", "lessThan": "5.5", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.248", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.198", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.160", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.120", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.62", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.17.12", "versionType": "semver", "lessThanOrEqual": "6.17.*"}, {"status": "unaffected", "version": "6.18.1", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "6.19", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["kernel/locking/spinlock_debug.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/8e5b2cf10844402054b52b489b525dc30cc16908"}, {"url": "https://git.kernel.org/stable/c/c228cb699a07a5f2d596d186bc5c314c99bb8bbf"}, {"url": "https://git.kernel.org/stable/c/93bd23524d63deb80fb85beb2e43fafeb1043d0f"}, {"url": "https://git.kernel.org/stable/c/39d2ef113416f1a4205b03fb0aa2e428d1412c77"}, {"url": "https://git.kernel.org/stable/c/b163a5e8c703201c905d6ec7920ed79d167e8442"}, {"url": "https://git.kernel.org/stable/c/16b3590c0e1e615757dade098c8fbc0d4f040c76"}, {"url": "https://git.kernel.org/stable/c/396a9270a7b90886be501611b13aa636f2e8c703"}, {"url": "https://git.kernel.org/stable/c/c14ecb555c3ee80eeb030a4e46d00e679537f03a"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "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."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.248", "versionStartIncluding": "5.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.198", "versionStartIncluding": "5.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": 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"versionStartIncluding": "4.9.209"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "4.14.164"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "4.19.95"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "5.4.11"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:10:54.280Z"}}}, "cveMetadata": {"cveId": "CVE-2025-68336", "state": "PUBLISHED", "dateUpdated": "2026-10-16T15:09:43.012Z", "dateReserved": "2025-12-16T14:48:05.297Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2025-12-22T16:14:13.425Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["kernel/locking/spinlock_debug.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "8e5b2cf10844402054b52b489b525dc30cc16908", "status": "affected", "version": "1a365e822372ba24c9da0822bc583894f6f3d821", "versionType": "git"}, {"lessThan": "c228cb699a07a5f2d596d186bc5c314c99bb8bbf", "status": "affected", "version": "1a365e822372ba24c9da0822bc583894f6f3d821", "versionType": "git"}, {"lessThan": "93bd23524d63deb80fb85beb2e43fafeb1043d0f", "status": "affected", "version": "1a365e822372ba24c9da0822bc583894f6f3d821", "versionType": "git"}, {"lessThan": "39d2ef113416f1a4205b03fb0aa2e428d1412c77", "status": "affected", "version": "1a365e822372ba24c9da0822bc583894f6f3d821", "versionType": "git"}, {"lessThan": "b163a5e8c703201c905d6ec7920ed79d167e8442", "status": "affected", "version": "1a365e822372ba24c9da0822bc583894f6f3d821", "versionType": "git"}, {"lessThan": "16b3590c0e1e615757dade098c8fbc0d4f040c76", "status": "affected", "version": "1a365e822372ba24c9da0822bc583894f6f3d821", "versionType": "git"}, {"lessThan": "396a9270a7b90886be501611b13aa636f2e8c703", "status": "affected", "version": "1a365e822372ba24c9da0822bc583894f6f3d821", "versionType": "git"}, {"lessThan": "c14ecb555c3ee80eeb030a4e46d00e679537f03a", "status": "affected", "version": "1a365e822372ba24c9da0822bc583894f6f3d821", "versionType": "git"}, {"status": "affected", "version": "3106fb78d3579c8e9c9b3040f7f7841981919624", "versionType": "git"}, {"status": "affected", "version": "c0911024ff927ba5c4786b507004cb615be1d776", "versionType": "git"}, {"status": "affected", "version": "09226e5c38639437565af01e6009a9286a351d04", "versionType": "git"}, {"status": "affected", "version": "c7673f01604fa722b9d7c1e29e17cec1b8ae09c5", "versionType": "git"}, {"status": "affected", "version": "c120c3dbeb76305235c8e557f84d9e2d7d0f5933", "versionType": "git"}, {"lessThan": "4.5", "status": "affected", "version": "4.4.209", "versionType": "semver"}, {"lessThan": "4.10", "status": "affected", "version": "4.9.209", "versionType": "semver"}, {"lessThan": "4.15", "status": "affected", "version": "4.14.164", "versionType": "semver"}, {"lessThan": "4.20", "status": "affected", "version": "4.19.95", "versionType": "semver"}, {"lessThan": "5.5", "status": "affected", "version": "5.4.11", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["kernel/locking/spinlock_debug.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.5"}, {"lessThan": "5.5", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.248", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.198", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.160", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.120", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.62", "versionType": "semver"}, {"lessThanOrEqual": "6.17.*", "status": "unaffected", "version": "6.17.12", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.1", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.19", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "En el kernel de Linux, se ha corregido la siguiente vulnerabilidad:\\n\\nlocking/spinlock/debug: Fix data-race in do_raw_write_lock\\n\\nInformes de KCSAN:\\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 -mayor que 0x00000001\\n\\nReportado por Kernel Concurrency Sanitizer el:\\nCPU: 0 PID: 1103 Comm: kworker/u4:1 6.1.111\\n\\nEl commit 1a365e822372 (\\\u201clocking/spinlock/debug: Fix various data races\\\u201d) ha abordado la mayor parte de estas carreras, pero parece no ser consistente/no estar completo.\\n\\n>Desde do_raw_write_lock() solo la parte debug_write_lock_after() se ha\\nconvertido a WRITE_ONCE(), pero la parte debug_write_lock_before() no.\\nHazlo ahora."}], "id": "CVE-2025-68336", "lastModified": "2026-10-19T21:10:00.160", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-68336", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T15:04:42.942439Z", "version": "2.0.3"}}]}, "published": "2025-12-22T17:16:01.357", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/16b3590c0e1e615757dade098c8fbc0d4f040c76"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/396a9270a7b90886be501611b13aa636f2e8c703"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/39d2ef113416f1a4205b03fb0aa2e428d1412c77"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8e5b2cf10844402054b52b489b525dc30cc16908"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/93bd23524d63deb80fb85beb2e43fafeb1043d0f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b163a5e8c703201c905d6ec7920ed79d167e8442"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c14ecb555c3ee80eeb030a4e46d00e679537f03a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c228cb699a07a5f2d596d186bc5c314c99bb8bbf"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Deferred"}

{"bugzilla": {"description": "kernel: locking/spinlock/debug: Fix data-race in do_raw_write_lock", "id": "2424337", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2424337"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2025-68336", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-12-22T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-68336\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-68336\nhttps://lore.kernel.org/linux-cve-announce/2025122220-CVE-2025-68336-0253@gregkh/T"], "threat_severity": "Low"}

{}