{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-28T22:17:07.535","vulnerabilities":[{"cve":{"id":"CVE-2023-52629","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2024-03-29T10:15:09.327","lastModified":"2025-04-08T19:28:53.087","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nsh: push-switch: Reorder cleanup operations to avoid use-after-free bug\n\nThe original code puts flush_work() before timer_shutdown_sync()\nin switch_drv_remove(). Although we use flush_work() to stop\nthe worker, it could be rescheduled in switch_timer(). As a result,\na use-after-free bug can occur. The details are shown below:\n\n      (cpu 0)                    |      (cpu 1)\nswitch_drv_remove()              |\n flush_work()                    |\n  ...                            |  switch_timer // timer\n                                 |   schedule_work(&psw->work)\n timer_shutdown_sync()           |\n ...                             |  switch_work_handler // worker\n kfree(psw) // free              |\n                                 |   psw->state = 0 // use\n\nThis patch puts timer_shutdown_sync() before flush_work() to\nmitigate the bugs. As a result, the worker and timer will be\nstopped safely before the deallocate operations."},{"lang":"es","value":"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: sh: push-switch: reordenar las operaciones de limpieza para evitar el error de use after free. El código original coloca Flush_work() antes de timer_shutdown_sync() en switch_drv_remove(). Aunque usamos Flush_work() para detener al trabajador, podría reprogramarse en switch_timer(). Como resultado, puede ocurrir un error de use after free. Los detalles se muestran a continuación: (cpu 0) | (procesador 1) switch_drv_remove() | descarga_trabajo() | ... | switch_timer // temporizador | Schedule_work(&psw->trabajo) timer_shutdown_sync() | ... | switch_work_handler // trabajador kfree(psw) // gratis | | psw->state = 0 // uso Este parche coloca timer_shutdown_sync() antes de Flush_work() para mitigar los errores. Como resultado, el trabajador y el temporizador se detendrán de forma segura antes de las operaciones de desasignación."}],"metrics":{"cvssMetricV31":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":8.4,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.5,"impactScore":5.9}]},"weaknesses":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","description":[{"lang":"en","value":"CWE-416"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.20","versionEndExcluding":"6.5.4","matchCriteriaId":"5A8752DF-35F4-4DE7-AC4E-3F753EDE78B3"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/246f80a0b17f8f582b2c0996db02998239057c65","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/610dbd8ac271aa36080aac50b928d700ee3fe4de","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/246f80a0b17f8f582b2c0996db02998239057c65","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/610dbd8ac271aa36080aac50b928d700ee3fe4de","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]}]}}]}