CVE-2024-50025

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> scsi: fnic: Move flush_work initialization out of if block<br /> <br /> After commit 379a58caa199 ("scsi: fnic: Move fnic_fnic_flush_tx() to a<br /> work queue"), it can happen that a work item is sent to an uninitialized<br /> work queue. This may has the effect that the item being queued is never<br /> actually queued, and any further actions depending on it will not<br /> proceed.<br /> <br /> The following warning is observed while the fnic driver is loaded:<br /> <br /> kernel: WARNING: CPU: 11 PID: 0 at ../kernel/workqueue.c:1524 __queue_work+0x373/0x410<br /> kernel: <br /> kernel: queue_work_on+0x3a/0x50<br /> kernel: fnic_wq_copy_cmpl_handler+0x54a/0x730 [fnic 62fbff0c42e7fb825c60a55cde2fb91facb2ed24]<br /> kernel: fnic_isr_msix_wq_copy+0x2d/0x60 [fnic 62fbff0c42e7fb825c60a55cde2fb91facb2ed24]<br /> kernel: __handle_irq_event_percpu+0x36/0x1a0<br /> kernel: handle_irq_event_percpu+0x30/0x70<br /> kernel: handle_irq_event+0x34/0x60<br /> kernel: handle_edge_irq+0x7e/0x1a0<br /> kernel: __common_interrupt+0x3b/0xb0<br /> kernel: common_interrupt+0x58/0xa0<br /> kernel: <br /> <br /> It has been observed that this may break the rediscovery of Fibre<br /> Channel devices after a temporary fabric failure.<br /> <br /> This patch fixes it by moving the work queue initialization out of<br /> an if block in fnic_probe().