CVE-2023-53219 media: netup_unidvb: fix use-after-free at del_timer()

In the Linux kernel, the following vulnerability has been resolved: media: netupunidvb: fix use-after-free at deltimer When Universal DVB card is detaching, netupunidvbdmafini uses deltimer to stop dma-timeout timer. But when timer handler netupunidvbdmatimeout is running, deltimer could not stop...

CVE-2023-53219 media: netup_unidvb: fix use-after-free at del_timer()

In the Linux kernel, the following vulnerability has been resolved: media: netupunidvb: fix use-after-free at deltimer When Universal DVB card is detaching, netupunidvbdmafini uses deltimer to stop dma-timeout timer. But when timer handler netupunidvbdmatimeout is running, deltimer could not stop...

CVE-2023-53219

CVE-2023-53219 affects the Linux kernel media: netup_unidvb code, where detaching a Universal DVB card could lead to a use-after-free because del_timer() could not stop an active timer in netup_unidvb_dma_timeout() while the timer runs. The fix replaces del_timer() with del_timer_sync() to ensure...