medium5.5
CVE-2021-47186
In the Linux kernel, the following vulnerability has been resolved: tipc: check for null after calling kmemdup kmemdup can return a null pointer so need to che…
Impact
In the Linux kernel, the following vulnerability has been resolved: tipc: check for null after calling kmemdup kmemdup can return a null pointer so need to check for it, otherwise the null key will be dereferenced later in tipc_crypto_key_xmit as can be seen in the trace [1]. [1] https://syzkaller.appspot.com/bug?id=bca180abb29567b189efdbdb34cbf7ba851c2a58
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | from 5.5 before 5.10.82 from 5.11 before 5.15.5 Version 5.16 |
Weakness classification
References
- NVD record
- CVE.org record
- https://git.kernel.org/stable/c/3e6db079751afd527bf3db32314ae938dc571916
- https://git.kernel.org/stable/c/9404c4145542c23019a80ab1bb2ecf73cd057b10
- https://git.kernel.org/stable/c/a7d91625863d4ffed63b993b5e6dc1298b6430c9
- https://git.kernel.org/stable/c/3e6db079751afd527bf3db32314ae938dc571916
- https://git.kernel.org/stable/c/9404c4145542c23019a80ab1bb2ecf73cd057b10
- https://git.kernel.org/stable/c/a7d91625863d4ffed63b993b5e6dc1298b6430c9