CVE-2022-49770 Information

Description

In the Linux kernel the following vulnerability has been resolved:

ceph: avoid putting the realm twice when decoding snaps fails

When decoding the snaps fails it maybe leaving the ‘first_realm’ and ‘realm’ pointing to the same snaprealm memory. And then it’ll put it twice and could cause random use-after-free BUG_ON etc issues.

Reference

https://git.kernel.org/stable/c/044bc6d3c2c0e9090b0841e7b723875756534b45 https://git.kernel.org/stable/c/274e4c79a3a2a24fba7cfe0e41113f1138785c37 https://git.kernel.org/stable/c/2f6e2de3a5289004650118b61f138fe7c28e1905 https://git.kernel.org/stable/c/51884d153f7ec85e18d607b2467820a90e0f4359 https://git.kernel.org/stable/c/cb7495fe957526555782ce0723f79ce92a6db22e https://git.kernel.org/stable/c/fd879c83e87735ab8f00ef7755752cf0cbae24b2