CVE-2024-53160 (GCVE-0-2024-53160)

Vulnerability from cvelistv5 – Published: 2024-12-24 11:29 – Updated: 2026-05-11 20:51
VLAI
Title
rcu/kvfree: Fix data-race in __mod_timer / kvfree_call_rcu
Summary
In the Linux kernel, the following vulnerability has been resolved: rcu/kvfree: Fix data-race in __mod_timer / kvfree_call_rcu KCSAN reports a data race when access the krcp->monitor_work.timer.expires variable in the schedule_delayed_monitor_work() function: <snip> BUG: KCSAN: data-race in __mod_timer / kvfree_call_rcu read to 0xffff888237d1cce8 of 8 bytes by task 10149 on cpu 1: schedule_delayed_monitor_work kernel/rcu/tree.c:3520 [inline] kvfree_call_rcu+0x3b8/0x510 kernel/rcu/tree.c:3839 trie_update_elem+0x47c/0x620 kernel/bpf/lpm_trie.c:441 bpf_map_update_value+0x324/0x350 kernel/bpf/syscall.c:203 generic_map_update_batch+0x401/0x520 kernel/bpf/syscall.c:1849 bpf_map_do_batch+0x28c/0x3f0 kernel/bpf/syscall.c:5143 __sys_bpf+0x2e5/0x7a0 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5739 x64_sys_call+0x2625/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:322 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f write to 0xffff888237d1cce8 of 8 bytes by task 56 on cpu 0: __mod_timer+0x578/0x7f0 kernel/time/timer.c:1173 add_timer_global+0x51/0x70 kernel/time/timer.c:1330 __queue_delayed_work+0x127/0x1a0 kernel/workqueue.c:2523 queue_delayed_work_on+0xdf/0x190 kernel/workqueue.c:2552 queue_delayed_work include/linux/workqueue.h:677 [inline] schedule_delayed_monitor_work kernel/rcu/tree.c:3525 [inline] kfree_rcu_monitor+0x5e8/0x660 kernel/rcu/tree.c:3643 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0x483/0x9a0 kernel/workqueue.c:3310 worker_thread+0x51d/0x6f0 kernel/workqueue.c:3391 kthread+0x1d1/0x210 kernel/kthread.c:389 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 56 Comm: kworker/u8:4 Not tainted 6.12.0-rc2-syzkaller-00050-g5b7c893ed5ed #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: events_unbound kfree_rcu_monitor <snip> kfree_rcu_monitor() rearms the work if a "krcp" has to be still offloaded and this is done without holding krcp->lock, whereas the kvfree_call_rcu() holds it. Fix it by acquiring the "krcp->lock" for kfree_rcu_monitor() so both functions do not race anymore.
Severity
4.7 (Medium)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 8fc5494ad5face62747a3937db66b00db1e5d80b , < 967a0e61910825d1fad009d836a6cb41f7402395 (git)
Affected: 8fc5494ad5face62747a3937db66b00db1e5d80b , < 05b8ea1f16667f07c8e5843fb4bde3e49d49ead8 (git)
Affected: 8fc5494ad5face62747a3937db66b00db1e5d80b , < 5ced426d97ce84299ecfcc7bd8b38f975fd11089 (git)
Affected: 8fc5494ad5face62747a3937db66b00db1e5d80b , < a23da88c6c80e41e0503e0b481a22c9eea63f263 (git)
Create a notification for this product.
Linux Linux Affected: 6.3
Unaffected: 0 , < 6.3 (semver)
Unaffected: 6.6.64 , ≤ 6.6.* (semver)
Unaffected: 6.11.11 , ≤ 6.11.* (semver)
Unaffected: 6.12.2 , ≤ 6.12.* (semver)
Unaffected: 6.13 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrcu/kvfree: Fix data-race in __mod_timer / kvfree_call_rcu\n\nKCSAN reports a data race when access the krcp-\u003emonitor_work.timer.expires\nvariable in the schedule_delayed_monitor_work() function:\n\n\u003csnip\u003e\nBUG: KCSAN: data-race in __mod_timer / kvfree_call_rcu\n\nread to 0xffff888237d1cce8 of 8 bytes by task 10149 on cpu 1:\n schedule_delayed_monitor_work kernel/rcu/tree.c:3520 [inline]\n kvfree_call_rcu+0x3b8/0x510 kernel/rcu/tree.c:3839\n trie_update_elem+0x47c/0x620 kernel/bpf/lpm_trie.c:441\n bpf_map_update_value+0x324/0x350 kernel/bpf/syscall.c:203\n generic_map_update_batch+0x401/0x520 kernel/bpf/syscall.c:1849\n bpf_map_do_batch+0x28c/0x3f0 kernel/bpf/syscall.c:5143\n __sys_bpf+0x2e5/0x7a0\n __do_sys_bpf kernel/bpf/syscall.c:5741 [inline]\n __se_sys_bpf kernel/bpf/syscall.c:5739 [inline]\n __x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5739\n x64_sys_call+0x2625/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:322\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nwrite to 0xffff888237d1cce8 of 8 bytes by task 56 on cpu 0:\n __mod_timer+0x578/0x7f0 kernel/time/timer.c:1173\n add_timer_global+0x51/0x70 kernel/time/timer.c:1330\n __queue_delayed_work+0x127/0x1a0 kernel/workqueue.c:2523\n queue_delayed_work_on+0xdf/0x190 kernel/workqueue.c:2552\n queue_delayed_work include/linux/workqueue.h:677 [inline]\n schedule_delayed_monitor_work kernel/rcu/tree.c:3525 [inline]\n kfree_rcu_monitor+0x5e8/0x660 kernel/rcu/tree.c:3643\n process_one_work kernel/workqueue.c:3229 [inline]\n process_scheduled_works+0x483/0x9a0 kernel/workqueue.c:3310\n worker_thread+0x51d/0x6f0 kernel/workqueue.c:3391\n kthread+0x1d1/0x210 kernel/kthread.c:389\n ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244\n\nReported by Kernel Concurrency Sanitizer on:\nCPU: 0 UID: 0 PID: 56 Comm: kworker/u8:4 Not tainted 6.12.0-rc2-syzkaller-00050-g5b7c893ed5ed #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024\nWorkqueue: events_unbound kfree_rcu_monitor\n\u003csnip\u003e\n\nkfree_rcu_monitor() rearms the work if a \"krcp\" has to be still\noffloaded and this is done without holding krcp-\u003elock, whereas\nthe kvfree_call_rcu() holds it.\n\nFix it by acquiring the \"krcp-\u003elock\" for kfree_rcu_monitor() so\nboth functions do not race anymore."
        }
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        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "references": [
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          "url": "https://git.kernel.org/stable/c/967a0e61910825d1fad009d836a6cb41f7402395"
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          "url": "https://git.kernel.org/stable/c/05b8ea1f16667f07c8e5843fb4bde3e49d49ead8"
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          "url": "https://git.kernel.org/stable/c/a23da88c6c80e41e0503e0b481a22c9eea63f263"
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    "datePublished": "2024-12-24T11:29:00.964Z",
    "dateReserved": "2024-11-19T17:17:25.002Z",
    "dateUpdated": "2026-05-11T20:51:59.781Z",
    "state": "PUBLISHED"
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    "epss": {
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      "date": "2026-06-05",
      "epss": "0.00013",
      "percentile": "0.02368"
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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-53160\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-12-24T12:15:24.340\",\"lastModified\":\"2025-10-01T21:16:38.163\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nrcu/kvfree: Fix data-race in __mod_timer / kvfree_call_rcu\\n\\nKCSAN reports a data race when access the krcp-\u003emonitor_work.timer.expires\\nvariable in the schedule_delayed_monitor_work() function:\\n\\n\u003csnip\u003e\\nBUG: KCSAN: data-race in __mod_timer / kvfree_call_rcu\\n\\nread to 0xffff888237d1cce8 of 8 bytes by task 10149 on cpu 1:\\n schedule_delayed_monitor_work kernel/rcu/tree.c:3520 [inline]\\n kvfree_call_rcu+0x3b8/0x510 kernel/rcu/tree.c:3839\\n trie_update_elem+0x47c/0x620 kernel/bpf/lpm_trie.c:441\\n bpf_map_update_value+0x324/0x350 kernel/bpf/syscall.c:203\\n generic_map_update_batch+0x401/0x520 kernel/bpf/syscall.c:1849\\n bpf_map_do_batch+0x28c/0x3f0 kernel/bpf/syscall.c:5143\\n __sys_bpf+0x2e5/0x7a0\\n __do_sys_bpf kernel/bpf/syscall.c:5741 [inline]\\n __se_sys_bpf kernel/bpf/syscall.c:5739 [inline]\\n __x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5739\\n x64_sys_call+0x2625/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:322\\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\\n do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83\\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\\n\\nwrite to 0xffff888237d1cce8 of 8 bytes by task 56 on cpu 0:\\n __mod_timer+0x578/0x7f0 kernel/time/timer.c:1173\\n add_timer_global+0x51/0x70 kernel/time/timer.c:1330\\n __queue_delayed_work+0x127/0x1a0 kernel/workqueue.c:2523\\n queue_delayed_work_on+0xdf/0x190 kernel/workqueue.c:2552\\n queue_delayed_work include/linux/workqueue.h:677 [inline]\\n schedule_delayed_monitor_work kernel/rcu/tree.c:3525 [inline]\\n kfree_rcu_monitor+0x5e8/0x660 kernel/rcu/tree.c:3643\\n process_one_work kernel/workqueue.c:3229 [inline]\\n process_scheduled_works+0x483/0x9a0 kernel/workqueue.c:3310\\n worker_thread+0x51d/0x6f0 kernel/workqueue.c:3391\\n kthread+0x1d1/0x210 kernel/kthread.c:389\\n ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147\\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244\\n\\nReported by Kernel Concurrency Sanitizer on:\\nCPU: 0 UID: 0 PID: 56 Comm: kworker/u8:4 Not tainted 6.12.0-rc2-syzkaller-00050-g5b7c893ed5ed #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024\\nWorkqueue: events_unbound kfree_rcu_monitor\\n\u003csnip\u003e\\n\\nkfree_rcu_monitor() rearms the work if a \\\"krcp\\\" has to be still\\noffloaded and this is done without holding krcp-\u003elock, whereas\\nthe kvfree_call_rcu() holds it.\\n\\nFix it by acquiring the \\\"krcp-\u003elock\\\" for kfree_rcu_monitor() so\\nboth functions do not race anymore.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: rcu/kvfree: Se corrigi\u00f3 la ejecuci\u00f3n de datos en __mod_timer / kvfree_call_rcu KCSAN informa una ejecuci\u00f3n de datos al acceder a la variable krcp-\u0026gt;monitor_work.timer.expires en la funci\u00f3n Schedule_delayed_monitor_work():   BUG: KCSAN: data-race in __mod_timer / kvfree_call_rcu read to 0xffff888237d1cce8 of 8 bytes by task 10149 on cpu 1: schedule_delayed_monitor_work kernel/rcu/tree.c:3520 [inline] kvfree_call_rcu+0x3b8/0x510 kernel/rcu/tree.c:3839 trie_update_elem+0x47c/0x620 kernel/bpf/lpm_trie.c:441 bpf_map_update_value+0x324/0x350 kernel/bpf/syscall.c:203 generic_map_update_batch+0x401/0x520 kernel/bpf/syscall.c:1849 bpf_map_do_batch+0x28c/0x3f0 kernel/bpf/syscall.c:5143 __sys_bpf+0x2e5/0x7a0 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5739 x64_sys_call+0x2625/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:322 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f write to 0xffff888237d1cce8 of 8 bytes by task 56 on cpu 0: __mod_timer+0x578/0x7f0 kernel/time/timer.c:1173 add_timer_global+0x51/0x70 kernel/time/timer.c:1330 __queue_delayed_work+0x127/0x1a0 kernel/workqueue.c:2523 queue_delayed_work_on+0xdf/0x190 kernel/workqueue.c:2552 queue_delayed_work include/linux/workqueue.h:677 [inline] schedule_delayed_monitor_work kernel/rcu/tree.c:3525 [inline] kfree_rcu_monitor+0x5e8/0x660 kernel/rcu/tree.c:3643 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0x483/0x9a0 kernel/workqueue.c:3310 worker_thread+0x51d/0x6f0 kernel/workqueue.c:3391 kthread+0x1d1/0x210 kernel/kthread.c:389 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 56 Comm: kworker/u8:4 Not tainted 6.12.0-rc2-syzkaller-00050-g5b7c893ed5ed #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: events_unbound kfree_rcu_monitor  kfree_rcu_monitor()  rearma el trabajo si se produce un \\\"krcp\\\" todav\u00eda tiene que estar descargado y esto se hace sin mantener krcp-\u0026gt;lock, mientras que kvfree_call_rcu() lo mantiene. Solucionarlo adquiriendo el \\\"krcp-\u0026gt;lock\\\" para kfree_rcu_monitor() para que ambas funciones ya no funcionen.\"}],\"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\":\"6.3\",\"versionEndExcluding\":\"6.6.64\",\"matchCriteriaId\":\"EC9D57B7-484D-412B-9962-8850DC0C6F66\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.11.11\",\"matchCriteriaId\":\"21434379-192D-472F-9B54-D45E3650E893\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.12\",\"versionEndExcluding\":\"6.12.2\",\"matchCriteriaId\":\"D8882B1B-2ABC-4838-AC1D-DBDBB5764776\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/05b8ea1f16667f07c8e5843fb4bde3e49d49ead8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5ced426d97ce84299ecfcc7bd8b38f975fd11089\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/967a0e61910825d1fad009d836a6cb41f7402395\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a23da88c6c80e41e0503e0b481a22c9eea63f263\",\"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-2024-53160\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-10-01T20:09:26.019462Z\"}}}], \"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\": \"2025-10-01T15:36:11.633Z\"}}], \"cna\": {\"title\": \"rcu/kvfree: Fix data-race in __mod_timer / kvfree_call_rcu\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"8fc5494ad5face62747a3937db66b00db1e5d80b\", \"lessThan\": \"967a0e61910825d1fad009d836a6cb41f7402395\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"8fc5494ad5face62747a3937db66b00db1e5d80b\", \"lessThan\": \"05b8ea1f16667f07c8e5843fb4bde3e49d49ead8\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"8fc5494ad5face62747a3937db66b00db1e5d80b\", \"lessThan\": \"5ced426d97ce84299ecfcc7bd8b38f975fd11089\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"8fc5494ad5face62747a3937db66b00db1e5d80b\", \"lessThan\": \"a23da88c6c80e41e0503e0b481a22c9eea63f263\", \"versionType\": \"git\"}], \"programFiles\": [\"kernel/rcu/tree.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.3\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.3\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.6.64\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.11.11\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.11.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12.2\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.12.*\"}, {\"status\": \"unaffected\", \"version\": \"6.13\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"kernel/rcu/tree.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/967a0e61910825d1fad009d836a6cb41f7402395\"}, {\"url\": \"https://git.kernel.org/stable/c/05b8ea1f16667f07c8e5843fb4bde3e49d49ead8\"}, {\"url\": \"https://git.kernel.org/stable/c/5ced426d97ce84299ecfcc7bd8b38f975fd11089\"}, {\"url\": \"https://git.kernel.org/stable/c/a23da88c6c80e41e0503e0b481a22c9eea63f263\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nrcu/kvfree: Fix data-race in __mod_timer / kvfree_call_rcu\\n\\nKCSAN reports a data race when access the krcp-\u003emonitor_work.timer.expires\\nvariable in the schedule_delayed_monitor_work() function:\\n\\n\u003csnip\u003e\\nBUG: KCSAN: data-race in __mod_timer / kvfree_call_rcu\\n\\nread to 0xffff888237d1cce8 of 8 bytes by task 10149 on cpu 1:\\n schedule_delayed_monitor_work kernel/rcu/tree.c:3520 [inline]\\n kvfree_call_rcu+0x3b8/0x510 kernel/rcu/tree.c:3839\\n trie_update_elem+0x47c/0x620 kernel/bpf/lpm_trie.c:441\\n bpf_map_update_value+0x324/0x350 kernel/bpf/syscall.c:203\\n generic_map_update_batch+0x401/0x520 kernel/bpf/syscall.c:1849\\n bpf_map_do_batch+0x28c/0x3f0 kernel/bpf/syscall.c:5143\\n __sys_bpf+0x2e5/0x7a0\\n __do_sys_bpf kernel/bpf/syscall.c:5741 [inline]\\n __se_sys_bpf kernel/bpf/syscall.c:5739 [inline]\\n __x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5739\\n x64_sys_call+0x2625/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:322\\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\\n do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83\\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\\n\\nwrite to 0xffff888237d1cce8 of 8 bytes by task 56 on cpu 0:\\n __mod_timer+0x578/0x7f0 kernel/time/timer.c:1173\\n add_timer_global+0x51/0x70 kernel/time/timer.c:1330\\n __queue_delayed_work+0x127/0x1a0 kernel/workqueue.c:2523\\n queue_delayed_work_on+0xdf/0x190 kernel/workqueue.c:2552\\n queue_delayed_work include/linux/workqueue.h:677 [inline]\\n schedule_delayed_monitor_work kernel/rcu/tree.c:3525 [inline]\\n kfree_rcu_monitor+0x5e8/0x660 kernel/rcu/tree.c:3643\\n process_one_work kernel/workqueue.c:3229 [inline]\\n process_scheduled_works+0x483/0x9a0 kernel/workqueue.c:3310\\n worker_thread+0x51d/0x6f0 kernel/workqueue.c:3391\\n kthread+0x1d1/0x210 kernel/kthread.c:389\\n ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147\\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244\\n\\nReported by Kernel Concurrency Sanitizer on:\\nCPU: 0 UID: 0 PID: 56 Comm: kworker/u8:4 Not tainted 6.12.0-rc2-syzkaller-00050-g5b7c893ed5ed #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024\\nWorkqueue: events_unbound kfree_rcu_monitor\\n\u003csnip\u003e\\n\\nkfree_rcu_monitor() rearms the work if a \\\"krcp\\\" has to be still\\noffloaded and this is done without holding krcp-\u003elock, whereas\\nthe kvfree_call_rcu() holds it.\\n\\nFix it by acquiring the \\\"krcp-\u003elock\\\" for kfree_rcu_monitor() so\\nboth functions do not race anymore.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.64\", \"versionStartIncluding\": \"6.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11.11\", \"versionStartIncluding\": \"6.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.2\", \"versionStartIncluding\": \"6.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.13\", \"versionStartIncluding\": \"6.3\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T20:51:59.781Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-53160\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T20:51:59.781Z\", \"dateReserved\": \"2024-11-19T17:17:25.002Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-12-24T11:29:00.964Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.