{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-06T06:15:57.224","vulnerabilities":[{"cve":{"id":"CVE-2022-49309","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2025-02-26T07:01:07.700","lastModified":"2025-11-03T20:15:58.800","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrivers: staging: rtl8723bs: Fix deadlock in rtw_surveydone_event_callback()\n\nThere is a deadlock in rtw_surveydone_event_callback(),\nwhich is shown below:\n\n   (Thread 1)                  |      (Thread 2)\n                               | _set_timer()\nrtw_surveydone_event_callback()|  mod_timer()\n spin_lock_bh() //(1)          |  (wait a time)\n ...                           | rtw_scan_timeout_handler()\n del_timer_sync()              |  spin_lock_bh() //(2)\n (wait timer to stop)          |  ...\n\nWe hold pmlmepriv->lock in position (1) of thread 1 and use\ndel_timer_sync() to wait timer to stop, but timer handler\nalso need pmlmepriv->lock in position (2) of thread 2.\nAs a result, rtw_surveydone_event_callback() will block forever.\n\nThis patch extracts del_timer_sync() from the protection of\nspin_lock_bh(), which could let timer handler to obtain\nthe needed lock. What`s more, we change spin_lock_bh() in\nrtw_scan_timeout_handler() to spin_lock_irq(). Otherwise,\nspin_lock_bh() will also cause deadlock() in timer handler."},{"lang":"es","value":"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drivers: staging: rtl8723bs: Se corrige el bloqueo en rtw_surveydone_event_callback() Hay un bloqueo en rtw_surveydone_event_callback(), que se muestra a continuación: (Hilo 1) | (Hilo 2) | _set_timer() rtw_surveydone_event_callback()| mod_timer() spin_lock_bh() //(1) | (esperar un tiempo) ... | rtw_scan_timeout_handler() del_timer_sync() | spin_lock_bh() //(2) (esperar a que el temporizador se detenga) | ... Mantenemos pmlmepriv->lock en la posición (1) del hilo 1 y usamos del_timer_sync() para esperar a que el temporizador se detenga, pero el controlador del temporizador también necesita pmlmepriv->lock en la posición (2) del hilo 2. Como resultado, rtw_surveydone_event_callback() se bloqueará para siempre. Este parche extrae del_timer_sync() de la protección de spin_lock_bh(), lo que podría permitir que el controlador del temporizador obtenga el bloqueo necesario. Además, cambiamos spin_lock_bh() en rtw_scan_timeout_handler() a spin_lock_irq(). De lo contrario, spin_lock_bh() también provocará un bloqueo interno (deadlock()) en el controlador del temporizador."}],"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:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.47","matchCriteriaId":"30EAD0EB-B3D1-4A88-A3D8-4F8242E81A01"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"5.17.15","matchCriteriaId":"53E7AA2E-2FB4-45CA-A22B-08B4EDBB51AD"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"5.18.4","matchCriteriaId":"FA6D643C-6D6A-4821-8A8D-B5776B8F0103"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/2c41f5c341853f84b7bc2f32605d4e2782e8c279","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/c84e5c819600ee0628f61b33d145258ae0f3d7a7","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/cc7ad0d77b51c872d629bcd98aea463a3c4109e7","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/ce129d3efd181da5fd56f4360cc8827122afa67e","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/f89f6c3ebf69623b8ea48200bd690e9e210335a1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html","source":"af854a3a-2127-422b-91ae-364da2661108"}]}}]}