In the Linux kernel before 5.3.6, there is a use-after-free bug that can be caused by a malicious USB device in the drivers/net/ieee802154/atusb.c driver, aka CID-7fd25e6fc035.
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
| Link | Tags |
|---|---|
| https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.6 | release notes vendor advisory |
| https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7fd25e6fc035f4b04b75bca6d7e8daa069603a76 | patch vendor advisory |
| http://www.openwall.com/lists/oss-security/2019/12/03/4 | third party advisory mailing list |
| http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html | mailing list third party advisory vendor advisory |
| https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html | third party advisory mailing list |