high8.8
CVE-2021-47670
In the Linux kernel, the following vulnerability has been resolved: can: peak_usb: fix use after free bugs After calling peak_usb_netif_rx_ni(skb), dereferenci…
Impact
In the Linux kernel, the following vulnerability has been resolved: can: peak_usb: fix use after free bugs After calling peak_usb_netif_rx_ni(skb), dereferencing skb is unsafe. Especially, the can_frame cf which aliases skb memory is accessed after the peak_usb_netif_rx_ni(). Reordering the lines solves the issue.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | from 4.0 before 4.19.171 from 4.20 before 5.4.93 from 5.5 before 5.10.11 Version 5.11 |
Weakness classification
References
- NVD record
- CVE.org record
- https://git.kernel.org/stable/c/50aca891d7a554db0901b245167cd653d73aaa71
- https://git.kernel.org/stable/c/5408824636fa0dfedb9ecb0d94abd573131bfbbe
- https://git.kernel.org/stable/c/ddd1416f44130377798c1430b76503513b7497c2
- https://git.kernel.org/stable/c/ec939c13c3fff2114479769c8380b7f1a54feca9