Description (CNA)
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().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e before dd5c77814f290b353917df329f36de1472d47154; affected 52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e before 90229e9ee957d4514425e4a4d82c50ab5d57ac4d; affected 52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e before 1550bcf2983ae1220cc8ab899a39a423fa7cb523; affected 52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e before f9982db735a8495eee14267cf193c806b957e942; affected 52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e before 051af3f0b7d1cd8ab7f3e2523ad8ae1af44caba3; affected 52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e before 07821524f67bf920342bc84ae8b3dea2a315a89e; affected 52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e before c8f9c05e1ebcc9c7bc211cc8b74d8fb86a8756fc; affected 52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e before 0f5bb36bf9b39a2a96e730bf4455095b50713f63 |
| Linux / Linux | affected 4.3; unaffected 0 before 4.3; unaffected 4.14.316 through 4.14.*; unaffected 4.19.284 through 4.19.*; unaffected 5.4.244 through 5.4.*; unaffected 5.10.181 through 5.10.*; unaffected 5.15.113 through 5.15.*; unaffected 6.1.30 through 6.1.*; unaffected 6.3.4 through 6.3.*; unaffected 6.4 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/dd5c77814f290b353917df329f36de1472d47154
- https://git.kernel.org/stable/c/90229e9ee957d4514425e4a4d82c50ab5d57ac4d
- https://git.kernel.org/stable/c/1550bcf2983ae1220cc8ab899a39a423fa7cb523
- https://git.kernel.org/stable/c/f9982db735a8495eee14267cf193c806b957e942
- https://git.kernel.org/stable/c/051af3f0b7d1cd8ab7f3e2523ad8ae1af44caba3
- https://git.kernel.org/stable/c/07821524f67bf920342bc84ae8b3dea2a315a89e
- https://git.kernel.org/stable/c/c8f9c05e1ebcc9c7bc211cc8b74d8fb86a8756fc
- https://git.kernel.org/stable/c/0f5bb36bf9b39a2a96e730bf4455095b50713f63
ADP enrichment
No English description supplied.
No references supplied.