{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-01T23:01:47.042","vulnerabilities":[{"cve":{"id":"CVE-2024-49976","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2024-10-21T18:15:18.353","lastModified":"2024-10-25T20:14:03.387","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ntracing/timerlat: Drop interface_lock in stop_kthread()\n\nstop_kthread() is the offline callback for \"trace/osnoise:online\", since\ncommit 5bfbcd1ee57b (\"tracing/timerlat: Add interface_lock around clearing\nof kthread in stop_kthread()\"), the following ABBA deadlock scenario is\nintroduced:\n\nT1                            | T2 [BP]               | T3 [AP]\nosnoise_hotplug_workfn()      | work_for_cpu_fn()     | cpuhp_thread_fun()\n                              |   _cpu_down()         |   osnoise_cpu_die()\n  mutex_lock(&interface_lock) |                       |     stop_kthread()\n                              |     cpus_write_lock() |       mutex_lock(&interface_lock)\n  cpus_read_lock()            |     cpuhp_kick_ap()   |\n\nAs the interface_lock here in just for protecting the \"kthread\" field of\nthe osn_var, use xchg() instead to fix this issue. Also use\nfor_each_online_cpu() back in stop_per_cpu_kthreads() as it can take\ncpu_read_lock() again."},{"lang":"es","value":"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tracing/timerlat: eliminar interface_lock en stop_kthread() stop_kthread() es la devolución de llamada fuera de línea para \"trace/osnoise:online\", desde el commit 5bfbcd1ee57b (\"tracing/timerlat: agregar interface_lock alrededor de la limpieza de kthread en stop_kthread()\"), se introduce el siguiente escenario de bloqueo ABBA: T1 | T2 [BP] | T3 [AP] osnoise_hotplug_workfn() | work_for_cpu_fn() | cpuhp_thread_fun() | _cpu_down() | osnoise_cpu_die() mutex_lock(&interface_lock) | | stop_kthread() | cpus_write_lock() | mutex_lock(&interface_lock) cpus_read_lock() | cpuhp_kick_ap() | Como interface_lock aquí solo sirve para proteger el campo \"kthread\" de osn_var, utilice xchg() en su lugar para solucionar este problema. Utilice también for_each_online_cpu() en stop_per_cpu_kthreads(), ya que puede volver a activar cpu_read_lock()."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-667"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6.51","versionEndExcluding":"6.6.55","matchCriteriaId":"588DF926-B51D-4153-8125-8F56DE5B5A54"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10.10","versionEndExcluding":"6.10.14","matchCriteriaId":"E2915A66-5936-4016-8869-18BC9109593F"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.11.3","matchCriteriaId":"54D9C704-D679-41A7-9C40-10A6B1E7FFE9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*","matchCriteriaId":"7F361E1D-580F-4A2D-A509-7615F73167A1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/09cb44cc3d3df7ade2cebc939d6257a2fa8afc7a","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/a4a05ceffe8fad68b45de38fe2311bda619e76e2","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/b484a02c9cedf8703eff8f0756f94618004bd165","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/db8571a9a098086608c11a15856ff585789e67e8","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]}]}}]}