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CVE-2022-49770

ceph: avoid putting the realm twice when decoding snaps fails

EPSS 0.2%
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.
Affected products
Linux · Linux

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References
https://git.kernel.org/stable/c/044bc6d3c2c0e9090b0841e7b723875756534b45https://git.kernel.org/stable/c/274e4c79a3a2a24fba7cfe0e41113f1138785c37https://git.kernel.org/stable/c/2f6e2de3a5289004650118b61f138fe7c28e1905https://git.kernel.org/stable/c/51884d153f7ec85e18d607b2467820a90e0f4359https://git.kernel.org/stable/c/cb7495fe957526555782ce0723f79ce92a6db22ehttps://git.kernel.org/stable/c/fd879c83e87735ab8f00ef7755752cf0cbae24b2