https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Wed, 30 Sep 2026 23:33:54 +0000 https://vulnerability.circl.lu/vuln/cve-2026-31548 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>wifi: cfg80211: cancel pmsr_free_wk in cfg80211_pmsr_wdev_down</p> <p>When the nl80211 socket that originated a PMSR request is closed, cfg80211_release_pmsr() sets the request&#39;s nl_portid to zero and schedules pmsr_free_wk to process the abort asynchronously. If the interface is concurrently torn down before that work runs, cfg80211_pmsr_wdev_down() calls cfg80211_pmsr_process_abort() directly. However, the already- scheduled pmsr_free_wk work item remains pending and may run after the interface has been removed from the driver. This could cause the driver&#39;s abort_pmsr callback to operate on a torn-down interface, leading to undefined behavior and potential crashes.</p> <p>Cancel pmsr_free_wk synchronously in cfg80211_pmsr_wdev_down() before calling cfg80211_pmsr_process_abort(). This ensures any pending or in-progress work is drained before interface teardown proceeds, preventing the work from invoking the driver abort callback after the interface is gone.</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>wifi: cfg80211: cancel pmsr_free_wk in cfg80211_pmsr_wdev_down</p> <p>When the nl80211 socket that originated a PMSR request is closed, cfg80211_release_pmsr() sets the request&#39;s nl_portid to zero and schedules pmsr_free_wk to process the abort asynchronously. If the interface is concurrently torn down before that work runs, cfg80211_pmsr_wdev_down() calls cfg80211_pmsr_process_abort() directly. However, the already- scheduled pmsr_free_wk work item remains pending and may run after the interface has been removed from the driver. This could cause the driver&#39;s abort_pmsr callback to operate on a torn-down interface, leading to undefined behavior and potential crashes.</p> <p>Cancel pmsr_free_wk synchronously in cfg80211_pmsr_wdev_down() before calling cfg80211_pmsr_process_abort(). This ensures any pending or in-progress work is drained before interface teardown proceeds, preventing the work from invoking the driver abort callback after the interface is gone.</p> https://vulnerability.circl.lu/vuln/cve-2026-31548