378 lines
19 KiB
JSON
378 lines
19 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2025-68336",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2025-12-16T14:48:05.297Z",
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"datePublished": "2025-12-22T16:14:13.425Z",
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"dateUpdated": "2026-10-16T15:09:43.012Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T12:10:54.280Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"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."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"baseScore": 7.5,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"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."
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}
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]
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"kernel/locking/spinlock_debug.c"
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],
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"versions": [
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{
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"version": "1a365e822372ba24c9da0822bc583894f6f3d821",
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"lessThan": "8e5b2cf10844402054b52b489b525dc30cc16908",
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"status": "affected",
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},
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{
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"version": "c7673f01604fa722b9d7c1e29e17cec1b8ae09c5",
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},
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{
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"version": "c120c3dbeb76305235c8e557f84d9e2d7d0f5933",
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"status": "affected",
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{
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"version": "4.4.209",
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"lessThan": "4.5",
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"status": "affected",
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},
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{
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"version": "4.9.209",
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},
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{
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"version": "4.14.164",
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{
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"version": "5.4.11",
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"status": "affected",
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}
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]
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{
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"kernel/locking/spinlock_debug.c"
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],
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"version": "0",
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"status": "unaffected",
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{
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"version": "5.10.248",
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},
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{
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{
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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},
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{
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"version": "6.6.120",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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},
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{
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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},
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{
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"version": "6.17.12",
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"lessThanOrEqual": "6.17.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.1",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.19",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/8e5b2cf10844402054b52b489b525dc30cc16908"
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},
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{
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"url": "https://git.kernel.org/stable/c/c228cb699a07a5f2d596d186bc5c314c99bb8bbf"
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},
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{
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"url": "https://git.kernel.org/stable/c/93bd23524d63deb80fb85beb2e43fafeb1043d0f"
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},
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{
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"url": "https://git.kernel.org/stable/c/39d2ef113416f1a4205b03fb0aa2e428d1412c77"
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},
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{
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"url": "https://git.kernel.org/stable/c/b163a5e8c703201c905d6ec7920ed79d167e8442"
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},
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{
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"url": "https://git.kernel.org/stable/c/16b3590c0e1e615757dade098c8fbc0d4f040c76"
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},
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{
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"url": "https://git.kernel.org/stable/c/396a9270a7b90886be501611b13aa636f2e8c703"
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},
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{
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"url": "https://git.kernel.org/stable/c/c14ecb555c3ee80eeb030a4e46d00e679537f03a"
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}
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],
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"title": "locking/spinlock/debug: Fix data-race in do_raw_write_lock",
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"x_generator": {
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{
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"metrics": [
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"type": "ssvc",
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"content": {
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"id": "CVE-2025-68336",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "yes"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-10-16T15:04:42.942439Z"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"dateUpdated": "2026-10-16T15:09:43.012Z"
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}
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}
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]
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}
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} |