https://db.gcve.eu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Thu, 12 Nov 2026 08:22:27 +0000 https://db.gcve.eu/vuln/cve-2026-98544 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>bna: prevent IOC timer rearm during teardown</p> <p>bna: prevent IOC timer rearm during teardown</p> <p>bnad_pci_remove() and the probe disable_ioceth path call timer_delete_sync() for ioc_timer, sem_timer and hb_timer, but not for iocpf_timer. bnad_iocpf_timeout() then takes bnad-&gt;bna_lock after free_netdev() has freed the struct bnad.</p> <p>Deleting iocpf_timer last does not fix this. sem_timer and iocpf_timer rearm each other: bnad_iocpf_sem_timeout() can arm iocpf_timer, and bnad_iocpf_timeout() arms sem_timer from bfa_ioc_hw_sem_get() when the semaphore is busy. timer_delete_sync() only waits out its own callback. bnad_ioceth_disable() can time out and leave that callback live.</p> <p>Shut all four IOC timers down with timer_shutdown_sync() on both paths, so a later mod_timer() is ignored.</p> <p>This issue was identified during our ongoing static-analysis research while reviewing kernel code.</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>bna: prevent IOC timer rearm during teardown</p> <p>bna: prevent IOC timer rearm during teardown</p> <p>bnad_pci_remove() and the probe disable_ioceth path call timer_delete_sync() for ioc_timer, sem_timer and hb_timer, but not for iocpf_timer. bnad_iocpf_timeout() then takes bnad-&gt;bna_lock after free_netdev() has freed the struct bnad.</p> <p>Deleting iocpf_timer last does not fix this. sem_timer and iocpf_timer rearm each other: bnad_iocpf_sem_timeout() can arm iocpf_timer, and bnad_iocpf_timeout() arms sem_timer from bfa_ioc_hw_sem_get() when the semaphore is busy. timer_delete_sync() only waits out its own callback. bnad_ioceth_disable() can time out and leave that callback live.</p> <p>Shut all four IOC timers down with timer_shutdown_sync() on both paths, so a later mod_timer() is ignored.</p> <p>This issue was identified during our ongoing static-analysis research while reviewing kernel code.</p> https://db.gcve.eu/vuln/cve-2026-98544