Tracker / CVE-2023-53219
CVE-2023-53219
In the Linux kernel, the following vulnerability has been resolved: media: netup_unidvb: fix use-after-free at del_timer() When Universal DVB card is detaching, netup_unidvb_dma_fini() uses del_timer() to stop dma->timeout timer. But when timer handler netup_unidvb_dma_timeout() is running, del_timer() could not stop it. As a result, the use-after-free bug could happen. The process is shown below: (cleanup routine) | (timer routine) | mod_timer(&dev->tx_sim_timer, ..) netup_unidvb_finidev() | (wait a time) netup_unidvb_dma_fini() | netup_unidvb_dma_timeout() del_timer(&dma->timeout); | | ndev->pci_dev->dev //USE Fix by changing del_timer() to del_timer_sync().
Prodotti e versioni affette
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 4.15 → 4.19.284 |
| linux | linux_kernel · 4.20 → 5.4.244 |
| linux | linux_kernel · 4.3 → 4.14.316 |
| linux | linux_kernel · 5.11 → 5.15.113 |
| linux | linux_kernel · 5.16 → 6.1.30 |
| linux | linux_kernel · 5.5 → 5.10.181 |
| linux | linux_kernel · 6.2 → 6.3.4 |