{"id":"CVE-2026-98544","published":"2026-10-18T16:17:06.300","lastModified":"2026-10-19T10:19:10.343","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbna: prevent IOC timer rearm during teardown\n\nbna: prevent IOC timer rearm during teardown\n\nbnad_pci_remove() and the probe disable_ioceth path call\ntimer_delete_sync() for ioc_timer, sem_timer and hb_timer, but not for\niocpf_timer.  bnad_iocpf_timeout() then takes bnad->bna_lock after\nfree_netdev() has freed the struct bnad.\n\nDeleting iocpf_timer last does not fix this.  sem_timer and\niocpf_timer rearm each other: bnad_iocpf_sem_timeout() can arm\niocpf_timer, and bnad_iocpf_timeout() arms sem_timer from\nbfa_ioc_hw_sem_get() when the semaphore is busy.\ntimer_delete_sync() only waits out its own callback.\nbnad_ioceth_disable() can time out and leave that callback live.\n\nShut all four IOC timers down with timer_shutdown_sync() on both\npaths, so a later mod_timer() is ignored.\n\nThis issue was identified during our ongoing static-analysis research\nwhile reviewing kernel code.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/28e32ace754b57534ef0ca0fb99bcbea5b13ba2a","tags":[]},{"url":"https://git.kernel.org/stable/c/4d97a141e85a034566c33c7ed854c8a3e8a268f1","tags":[]},{"url":"https://git.kernel.org/stable/c/77b1718e39e5c9f6956fb60807326af20baf889d","tags":[]},{"url":"https://git.kernel.org/stable/c/e09d1c6729ee4a7812128902d9274ff565f958b8","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}