{"affected":[],"cveId":"CVE-2022-50744","cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: lpfc: Fix hard lockup when reading the rx_monitor from debugfs\n\nDuring I/O and simultaneous cat of /sys/kernel/debug/lpfc/fnX/rx_monitor, a\nhard lockup similar to the call trace below may occur.\n\nThe spin_lock_bh in lpfc_rx_monitor_report is not protecting from timer\ninterrupts as expected, so change the strength of the spin lock to _irq.\n\nKernel panic - not syncing: Hard LOCKUP\nCPU: 3 PID: 110402 Comm: cat Kdump: loaded\n\nexception RIP: native_queued_spin_lock_slowpath+91\n\n[IRQ stack]\n native_queued_spin_lock_slowpath at ffffffffb814e30b\n _raw_spin_lock at ffffffffb89a667a\n lpfc_rx_monitor_record at ffffffffc0a73a36 [lpfc]\n lpfc_cmf_timer at ffffffffc0abbc67 [lpfc]\n __hrtimer_run_queues at ffffffffb8184250\n hrtimer_interrupt at ffffffffb8184ab0\n smp_apic_timer_interrupt at ffffffffb8a026ba\n apic_timer_interrupt at ffffffffb8a01c4f\n[End of IRQ stack]\n\n apic_timer_interrupt at ffffffffb8a01c4f\n lpfc_rx_monitor_report at ffffffffc0a73c80 [lpfc]\n lpfc_rx_monitor_read at ffffffffc0addde1 [lpfc]\n full_proxy_read at ffffffffb83e7fc3\n vfs_read at ffffffffb833fe71\n ksys_read at ffffffffb83402af\n do_syscall_64 at ffffffffb800430b\n entry_SYSCALL_64_after_hwframe at ffffffffb8a000ad","epss":null,"exploits":[],"kev":null,"metrics":[],"modifiedAt":1794312600177,"publishedAt":1766582161120,"references":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"url":"https://git.kernel.org/stable/c/2cf66428a2545bb33beb9624124a2377468bb478"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"url":"https://git.kernel.org/stable/c/39761417ea7b654217d6d9085afbf7c87ba3675d"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"url":"https://git.kernel.org/stable/c/c44e50f4a0ec00c2298f31f91bc2c3e9bbd81c7e"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"url":"https://git.kernel.org/stable/c/cd542900ee5147028bbe603b238efcab8d720838"}],"remediation":[],"revision":"468862cfa4e229d40798ebc3be967a136722daf9aa75e8d13eb91c43ab4e259b","sources":[{"modifiedAt":1794312600177,"name":"NVD","retrievedAt":1794313076960,"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-50744"}],"ssvc":null,"status":"published","title":"CVE-2022-50744","updatedAt":1794313076960}