CVE-2023-53329 (GCVE-0-2023-53329)

Vulnerability from cvelistv5 – Published: 2025-09-16 16:12 – Updated: 2026-01-14 18:32
VLAI?
Title
workqueue: fix data race with the pwq->stats[] increment
Summary
In the Linux kernel, the following vulnerability has been resolved: workqueue: fix data race with the pwq->stats[] increment KCSAN has discovered a data race in kernel/workqueue.c:2598: [ 1863.554079] ================================================================== [ 1863.554118] BUG: KCSAN: data-race in process_one_work / process_one_work [ 1863.554142] write to 0xffff963d99d79998 of 8 bytes by task 5394 on cpu 27: [ 1863.554154] process_one_work (kernel/workqueue.c:2598) [ 1863.554166] worker_thread (./include/linux/list.h:292 kernel/workqueue.c:2752) [ 1863.554177] kthread (kernel/kthread.c:389) [ 1863.554186] ret_from_fork (arch/x86/kernel/process.c:145) [ 1863.554197] ret_from_fork_asm (arch/x86/entry/entry_64.S:312) [ 1863.554213] read to 0xffff963d99d79998 of 8 bytes by task 5450 on cpu 12: [ 1863.554224] process_one_work (kernel/workqueue.c:2598) [ 1863.554235] worker_thread (./include/linux/list.h:292 kernel/workqueue.c:2752) [ 1863.554247] kthread (kernel/kthread.c:389) [ 1863.554255] ret_from_fork (arch/x86/kernel/process.c:145) [ 1863.554266] ret_from_fork_asm (arch/x86/entry/entry_64.S:312) [ 1863.554280] value changed: 0x0000000000001766 -> 0x000000000000176a [ 1863.554295] Reported by Kernel Concurrency Sanitizer on: [ 1863.554303] CPU: 12 PID: 5450 Comm: kworker/u64:1 Tainted: G L 6.5.0-rc6+ #44 [ 1863.554314] Hardware name: ASRock X670E PG Lightning/X670E PG Lightning, BIOS 1.21 04/26/2023 [ 1863.554322] Workqueue: btrfs-endio btrfs_end_bio_work [btrfs] [ 1863.554941] ================================================================== lockdep_invariant_state(true); → pwq->stats[PWQ_STAT_STARTED]++; trace_workqueue_execute_start(work); worker->current_func(work); Moving pwq->stats[PWQ_STAT_STARTED]++; before the line raw_spin_unlock_irq(&pool->lock); resolves the data race without performance penalty. KCSAN detected at least one additional data race: [ 157.834751] ================================================================== [ 157.834770] BUG: KCSAN: data-race in process_one_work / process_one_work [ 157.834793] write to 0xffff9934453f77a0 of 8 bytes by task 468 on cpu 29: [ 157.834804] process_one_work (/home/marvin/linux/kernel/linux_torvalds/kernel/workqueue.c:2606) [ 157.834815] worker_thread (/home/marvin/linux/kernel/linux_torvalds/./include/linux/list.h:292 /home/marvin/linux/kernel/linux_torvalds/kernel/workqueue.c:2752) [ 157.834826] kthread (/home/marvin/linux/kernel/linux_torvalds/kernel/kthread.c:389) [ 157.834834] ret_from_fork (/home/marvin/linux/kernel/linux_torvalds/arch/x86/kernel/process.c:145) [ 157.834845] ret_from_fork_asm (/home/marvin/linux/kernel/linux_torvalds/arch/x86/entry/entry_64.S:312) [ 157.834859] read to 0xffff9934453f77a0 of 8 bytes by task 214 on cpu 7: [ 157.834868] process_one_work (/home/marvin/linux/kernel/linux_torvalds/kernel/workqueue.c:2606) [ 157.834879] worker_thread (/home/marvin/linux/kernel/linux_torvalds/./include/linux/list.h:292 /home/marvin/linux/kernel/linux_torvalds/kernel/workqueue.c:2752) [ 157.834890] kthread (/home/marvin/linux/kernel/linux_torvalds/kernel/kthread.c:389) [ 157.834897] ret_from_fork (/home/marvin/linux/kernel/linux_torvalds/arch/x86/kernel/process.c:145) [ 157.834907] ret_from_fork_asm (/home/marvin/linux/kernel/linux_torvalds/arch/x86/entry/entry_64.S:312) [ 157.834920] value changed: 0x000000000000052a -> 0x0000000000000532 [ 157.834933] Reported by Kernel Concurrency Sanitizer on: [ 157.834941] CPU: 7 PID: 214 Comm: kworker/u64:2 Tainted: G L 6.5.0-rc7-kcsan-00169-g81eaf55a60fc #4 [ 157.834951] Hardware name: ASRock X670E PG Lightning/X670E PG Lightning, BIOS 1.21 04/26/2023 [ 157.834958] Workqueue: btrfs-endio btrfs_end_bio_work [btrfs] [ 157.835567] ================================================================== in code: trace_workqueue_execute_end(work, worker->current_func); → pwq->stats[PWQ_STAT_COM ---truncated---
Severity ?
4.7 (Medium)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 725e8ec59c56c65fb92e343c10a8842cd0d4f194 , < ce55024f28589b0012fa2c6b5748ec5a180b7fbe (git)
Affected: 725e8ec59c56c65fb92e343c10a8842cd0d4f194 , < fe48ba7daefe75bbbefa2426deddc05f2d530d2d (git)
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    Linux Linux Affected: 6.5
Unaffected: 0 , < 6.5 (semver)
Unaffected: 6.5.3 , ≤ 6.5.* (semver)
Unaffected: 6.6 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nworkqueue: fix data race with the pwq-\u003estats[] increment\n\nKCSAN has discovered a data race in kernel/workqueue.c:2598:\n\n[ 1863.554079] ==================================================================\n[ 1863.554118] BUG: KCSAN: data-race in process_one_work / process_one_work\n\n[ 1863.554142] write to 0xffff963d99d79998 of 8 bytes by task 5394 on cpu 27:\n[ 1863.554154] process_one_work (kernel/workqueue.c:2598)\n[ 1863.554166] worker_thread (./include/linux/list.h:292 kernel/workqueue.c:2752)\n[ 1863.554177] kthread (kernel/kthread.c:389)\n[ 1863.554186] ret_from_fork (arch/x86/kernel/process.c:145)\n[ 1863.554197] ret_from_fork_asm (arch/x86/entry/entry_64.S:312)\n\n[ 1863.554213] read to 0xffff963d99d79998 of 8 bytes by task 5450 on cpu 12:\n[ 1863.554224] process_one_work (kernel/workqueue.c:2598)\n[ 1863.554235] worker_thread (./include/linux/list.h:292 kernel/workqueue.c:2752)\n[ 1863.554247] kthread (kernel/kthread.c:389)\n[ 1863.554255] ret_from_fork (arch/x86/kernel/process.c:145)\n[ 1863.554266] ret_from_fork_asm (arch/x86/entry/entry_64.S:312)\n\n[ 1863.554280] value changed: 0x0000000000001766 -\u003e 0x000000000000176a\n\n[ 1863.554295] Reported by Kernel Concurrency Sanitizer on:\n[ 1863.554303] CPU: 12 PID: 5450 Comm: kworker/u64:1 Tainted: G             L     6.5.0-rc6+ #44\n[ 1863.554314] Hardware name: ASRock X670E PG Lightning/X670E PG Lightning, BIOS 1.21 04/26/2023\n[ 1863.554322] Workqueue: btrfs-endio btrfs_end_bio_work [btrfs]\n[ 1863.554941] ==================================================================\n\n    lockdep_invariant_state(true);\n\u2192   pwq-\u003estats[PWQ_STAT_STARTED]++;\n    trace_workqueue_execute_start(work);\n    worker-\u003ecurrent_func(work);\n\nMoving pwq-\u003estats[PWQ_STAT_STARTED]++; before the line\n\n    raw_spin_unlock_irq(\u0026pool-\u003elock);\n\nresolves the data race without performance penalty.\n\nKCSAN detected at least one additional data race:\n\n[  157.834751] ==================================================================\n[  157.834770] BUG: KCSAN: data-race in process_one_work / process_one_work\n\n[  157.834793] write to 0xffff9934453f77a0 of 8 bytes by task 468 on cpu 29:\n[  157.834804] process_one_work (/home/marvin/linux/kernel/linux_torvalds/kernel/workqueue.c:2606)\n[  157.834815] worker_thread (/home/marvin/linux/kernel/linux_torvalds/./include/linux/list.h:292 /home/marvin/linux/kernel/linux_torvalds/kernel/workqueue.c:2752)\n[  157.834826] kthread (/home/marvin/linux/kernel/linux_torvalds/kernel/kthread.c:389)\n[  157.834834] ret_from_fork (/home/marvin/linux/kernel/linux_torvalds/arch/x86/kernel/process.c:145)\n[  157.834845] ret_from_fork_asm (/home/marvin/linux/kernel/linux_torvalds/arch/x86/entry/entry_64.S:312)\n\n[  157.834859] read to 0xffff9934453f77a0 of 8 bytes by task 214 on cpu 7:\n[  157.834868] process_one_work (/home/marvin/linux/kernel/linux_torvalds/kernel/workqueue.c:2606)\n[  157.834879] worker_thread (/home/marvin/linux/kernel/linux_torvalds/./include/linux/list.h:292 /home/marvin/linux/kernel/linux_torvalds/kernel/workqueue.c:2752)\n[  157.834890] kthread (/home/marvin/linux/kernel/linux_torvalds/kernel/kthread.c:389)\n[  157.834897] ret_from_fork (/home/marvin/linux/kernel/linux_torvalds/arch/x86/kernel/process.c:145)\n[  157.834907] ret_from_fork_asm (/home/marvin/linux/kernel/linux_torvalds/arch/x86/entry/entry_64.S:312)\n\n[  157.834920] value changed: 0x000000000000052a -\u003e 0x0000000000000532\n\n[  157.834933] Reported by Kernel Concurrency Sanitizer on:\n[  157.834941] CPU: 7 PID: 214 Comm: kworker/u64:2 Tainted: G             L     6.5.0-rc7-kcsan-00169-g81eaf55a60fc #4\n[  157.834951] Hardware name: ASRock X670E PG Lightning/X670E PG Lightning, BIOS 1.21 04/26/2023\n[  157.834958] Workqueue: btrfs-endio btrfs_end_bio_work [btrfs]\n[  157.835567] ==================================================================\n\nin code:\n\n        trace_workqueue_execute_end(work, worker-\u003ecurrent_func);\n\u2192       pwq-\u003estats[PWQ_STAT_COM\n---truncated---"
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          "url": "https://git.kernel.org/stable/c/ce55024f28589b0012fa2c6b5748ec5a180b7fbe"
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        {
          "url": "https://git.kernel.org/stable/c/fe48ba7daefe75bbbefa2426deddc05f2d530d2d"
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      "title": "workqueue: fix data race with the pwq-\u003estats[] increment",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53329",
    "datePublished": "2025-09-16T16:12:05.196Z",
    "dateReserved": "2025-09-16T16:08:59.564Z",
    "dateUpdated": "2026-01-14T18:32:59.529Z",
    "state": "PUBLISHED"
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  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53329\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-09-16T17:15:39.207\",\"lastModified\":\"2026-01-14T19:16:27.577\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nworkqueue: fix data race with the pwq-\u003estats[] increment\\n\\nKCSAN has discovered a data race in kernel/workqueue.c:2598:\\n\\n[ 1863.554079] ==================================================================\\n[ 1863.554118] BUG: KCSAN: data-race in process_one_work / process_one_work\\n\\n[ 1863.554142] write to 0xffff963d99d79998 of 8 bytes by task 5394 on cpu 27:\\n[ 1863.554154] process_one_work (kernel/workqueue.c:2598)\\n[ 1863.554166] worker_thread (./include/linux/list.h:292 kernel/workqueue.c:2752)\\n[ 1863.554177] kthread (kernel/kthread.c:389)\\n[ 1863.554186] ret_from_fork (arch/x86/kernel/process.c:145)\\n[ 1863.554197] ret_from_fork_asm (arch/x86/entry/entry_64.S:312)\\n\\n[ 1863.554213] read to 0xffff963d99d79998 of 8 bytes by task 5450 on cpu 12:\\n[ 1863.554224] process_one_work (kernel/workqueue.c:2598)\\n[ 1863.554235] worker_thread (./include/linux/list.h:292 kernel/workqueue.c:2752)\\n[ 1863.554247] kthread (kernel/kthread.c:389)\\n[ 1863.554255] ret_from_fork (arch/x86/kernel/process.c:145)\\n[ 1863.554266] ret_from_fork_asm (arch/x86/entry/entry_64.S:312)\\n\\n[ 1863.554280] value changed: 0x0000000000001766 -\u003e 0x000000000000176a\\n\\n[ 1863.554295] Reported by Kernel Concurrency Sanitizer on:\\n[ 1863.554303] CPU: 12 PID: 5450 Comm: kworker/u64:1 Tainted: G             L     6.5.0-rc6+ #44\\n[ 1863.554314] Hardware name: ASRock X670E PG Lightning/X670E PG Lightning, BIOS 1.21 04/26/2023\\n[ 1863.554322] Workqueue: btrfs-endio btrfs_end_bio_work [btrfs]\\n[ 1863.554941] ==================================================================\\n\\n    lockdep_invariant_state(true);\\n\u2192   pwq-\u003estats[PWQ_STAT_STARTED]++;\\n    trace_workqueue_execute_start(work);\\n    worker-\u003ecurrent_func(work);\\n\\nMoving pwq-\u003estats[PWQ_STAT_STARTED]++; before the line\\n\\n    raw_spin_unlock_irq(\u0026pool-\u003elock);\\n\\nresolves the data race without performance penalty.\\n\\nKCSAN detected at least one additional data race:\\n\\n[  157.834751] ==================================================================\\n[  157.834770] BUG: KCSAN: data-race in process_one_work / process_one_work\\n\\n[  157.834793] write to 0xffff9934453f77a0 of 8 bytes by task 468 on cpu 29:\\n[  157.834804] process_one_work (/home/marvin/linux/kernel/linux_torvalds/kernel/workqueue.c:2606)\\n[  157.834815] worker_thread (/home/marvin/linux/kernel/linux_torvalds/./include/linux/list.h:292 /home/marvin/linux/kernel/linux_torvalds/kernel/workqueue.c:2752)\\n[  157.834826] kthread (/home/marvin/linux/kernel/linux_torvalds/kernel/kthread.c:389)\\n[  157.834834] ret_from_fork (/home/marvin/linux/kernel/linux_torvalds/arch/x86/kernel/process.c:145)\\n[  157.834845] ret_from_fork_asm (/home/marvin/linux/kernel/linux_torvalds/arch/x86/entry/entry_64.S:312)\\n\\n[  157.834859] read to 0xffff9934453f77a0 of 8 bytes by task 214 on cpu 7:\\n[  157.834868] process_one_work (/home/marvin/linux/kernel/linux_torvalds/kernel/workqueue.c:2606)\\n[  157.834879] worker_thread (/home/marvin/linux/kernel/linux_torvalds/./include/linux/list.h:292 /home/marvin/linux/kernel/linux_torvalds/kernel/workqueue.c:2752)\\n[  157.834890] kthread (/home/marvin/linux/kernel/linux_torvalds/kernel/kthread.c:389)\\n[  157.834897] ret_from_fork (/home/marvin/linux/kernel/linux_torvalds/arch/x86/kernel/process.c:145)\\n[  157.834907] ret_from_fork_asm (/home/marvin/linux/kernel/linux_torvalds/arch/x86/entry/entry_64.S:312)\\n\\n[  157.834920] value changed: 0x000000000000052a -\u003e 0x0000000000000532\\n\\n[  157.834933] Reported by Kernel Concurrency Sanitizer on:\\n[  157.834941] CPU: 7 PID: 214 Comm: kworker/u64:2 Tainted: G             L     6.5.0-rc7-kcsan-00169-g81eaf55a60fc #4\\n[  157.834951] Hardware name: ASRock X670E PG Lightning/X670E PG Lightning, BIOS 1.21 04/26/2023\\n[  157.834958] Workqueue: btrfs-endio btrfs_end_bio_work [btrfs]\\n[  157.835567] ==================================================================\\n\\nin code:\\n\\n        trace_workqueue_execute_end(work, worker-\u003ecurrent_func);\\n\u2192       pwq-\u003estats[PWQ_STAT_COM\\n---truncated---\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":4.7,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.0,\"impactScore\":3.6},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":4.7,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.0,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-362\"}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-362\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.5\",\"versionEndExcluding\":\"6.5.3\",\"matchCriteriaId\":\"880C803A-BEAE-4DA0-8A59-AC023F7B4EE3\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/ce55024f28589b0012fa2c6b5748ec5a180b7fbe\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/fe48ba7daefe75bbbefa2426deddc05f2d530d2d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 4.7, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"HIGH\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-53329\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-01-14T18:29:38.457870Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-362\", \"description\": \"CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization (\u0027Race Condition\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-01-14T18:29:34.479Z\"}}], \"cna\": {\"title\": \"workqueue: fix data race with the pwq-\u003estats[] increment\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"725e8ec59c56c65fb92e343c10a8842cd0d4f194\", \"lessThan\": \"ce55024f28589b0012fa2c6b5748ec5a180b7fbe\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"725e8ec59c56c65fb92e343c10a8842cd0d4f194\", \"lessThan\": \"fe48ba7daefe75bbbefa2426deddc05f2d530d2d\", \"versionType\": \"git\"}], \"programFiles\": [\"kernel/workqueue.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.5\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.5\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.5.3\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.5.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"kernel/workqueue.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/ce55024f28589b0012fa2c6b5748ec5a180b7fbe\"}, {\"url\": \"https://git.kernel.org/stable/c/fe48ba7daefe75bbbefa2426deddc05f2d530d2d\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nworkqueue: fix data race with the pwq-\u003estats[] increment\\n\\nKCSAN has discovered a data race in kernel/workqueue.c:2598:\\n\\n[ 1863.554079] ==================================================================\\n[ 1863.554118] BUG: KCSAN: data-race in process_one_work / process_one_work\\n\\n[ 1863.554142] write to 0xffff963d99d79998 of 8 bytes by task 5394 on cpu 27:\\n[ 1863.554154] process_one_work (kernel/workqueue.c:2598)\\n[ 1863.554166] worker_thread (./include/linux/list.h:292 kernel/workqueue.c:2752)\\n[ 1863.554177] kthread (kernel/kthread.c:389)\\n[ 1863.554186] ret_from_fork (arch/x86/kernel/process.c:145)\\n[ 1863.554197] ret_from_fork_asm (arch/x86/entry/entry_64.S:312)\\n\\n[ 1863.554213] read to 0xffff963d99d79998 of 8 bytes by task 5450 on cpu 12:\\n[ 1863.554224] process_one_work (kernel/workqueue.c:2598)\\n[ 1863.554235] worker_thread (./include/linux/list.h:292 kernel/workqueue.c:2752)\\n[ 1863.554247] kthread (kernel/kthread.c:389)\\n[ 1863.554255] ret_from_fork (arch/x86/kernel/process.c:145)\\n[ 1863.554266] ret_from_fork_asm (arch/x86/entry/entry_64.S:312)\\n\\n[ 1863.554280] value changed: 0x0000000000001766 -\u003e 0x000000000000176a\\n\\n[ 1863.554295] Reported by Kernel Concurrency Sanitizer on:\\n[ 1863.554303] CPU: 12 PID: 5450 Comm: kworker/u64:1 Tainted: G             L     6.5.0-rc6+ #44\\n[ 1863.554314] Hardware name: ASRock X670E PG Lightning/X670E PG Lightning, BIOS 1.21 04/26/2023\\n[ 1863.554322] Workqueue: btrfs-endio btrfs_end_bio_work [btrfs]\\n[ 1863.554941] ==================================================================\\n\\n    lockdep_invariant_state(true);\\n\\u2192   pwq-\u003estats[PWQ_STAT_STARTED]++;\\n    trace_workqueue_execute_start(work);\\n    worker-\u003ecurrent_func(work);\\n\\nMoving pwq-\u003estats[PWQ_STAT_STARTED]++; before the line\\n\\n    raw_spin_unlock_irq(\u0026pool-\u003elock);\\n\\nresolves the data race without performance penalty.\\n\\nKCSAN detected at least one additional data race:\\n\\n[  157.834751] ==================================================================\\n[  157.834770] BUG: KCSAN: data-race in process_one_work / process_one_work\\n\\n[  157.834793] write to 0xffff9934453f77a0 of 8 bytes by task 468 on cpu 29:\\n[  157.834804] process_one_work (/home/marvin/linux/kernel/linux_torvalds/kernel/workqueue.c:2606)\\n[  157.834815] worker_thread (/home/marvin/linux/kernel/linux_torvalds/./include/linux/list.h:292 /home/marvin/linux/kernel/linux_torvalds/kernel/workqueue.c:2752)\\n[  157.834826] kthread (/home/marvin/linux/kernel/linux_torvalds/kernel/kthread.c:389)\\n[  157.834834] ret_from_fork (/home/marvin/linux/kernel/linux_torvalds/arch/x86/kernel/process.c:145)\\n[  157.834845] ret_from_fork_asm (/home/marvin/linux/kernel/linux_torvalds/arch/x86/entry/entry_64.S:312)\\n\\n[  157.834859] read to 0xffff9934453f77a0 of 8 bytes by task 214 on cpu 7:\\n[  157.834868] process_one_work (/home/marvin/linux/kernel/linux_torvalds/kernel/workqueue.c:2606)\\n[  157.834879] worker_thread (/home/marvin/linux/kernel/linux_torvalds/./include/linux/list.h:292 /home/marvin/linux/kernel/linux_torvalds/kernel/workqueue.c:2752)\\n[  157.834890] kthread (/home/marvin/linux/kernel/linux_torvalds/kernel/kthread.c:389)\\n[  157.834897] ret_from_fork (/home/marvin/linux/kernel/linux_torvalds/arch/x86/kernel/process.c:145)\\n[  157.834907] ret_from_fork_asm (/home/marvin/linux/kernel/linux_torvalds/arch/x86/entry/entry_64.S:312)\\n\\n[  157.834920] value changed: 0x000000000000052a -\u003e 0x0000000000000532\\n\\n[  157.834933] Reported by Kernel Concurrency Sanitizer on:\\n[  157.834941] CPU: 7 PID: 214 Comm: kworker/u64:2 Tainted: G             L     6.5.0-rc7-kcsan-00169-g81eaf55a60fc #4\\n[  157.834951] Hardware name: ASRock X670E PG Lightning/X670E PG Lightning, BIOS 1.21 04/26/2023\\n[  157.834958] Workqueue: btrfs-endio btrfs_end_bio_work [btrfs]\\n[  157.835567] ==================================================================\\n\\nin code:\\n\\n        trace_workqueue_execute_end(work, worker-\u003ecurrent_func);\\n\\u2192       pwq-\u003estats[PWQ_STAT_COM\\n---truncated---\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.5.3\", \"versionStartIncluding\": \"6.5\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6\", \"versionStartIncluding\": \"6.5\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-09-16T16:12:05.196Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-53329\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-14T18:32:59.529Z\", \"dateReserved\": \"2025-09-16T16:08:59.564Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-09-16T16:12:05.196Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.