CVE-2022-49849

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix match incorrectly in dev_args_match_device syzkaller found a failed assertion: assertion failed: (args->devid != (u64)-1) || args->missing, in fs/btrfs/volumes.c:6921 This can be triggered when we set devid to (u64)-1 by ioctl. In this case, the match of devid will be skipped and the match of device may succeed incorrectly. Patch 562d7b1512f7 introduced this function which is used to match device. This function contains two matching scenarios, we can distinguish them by checking the value of args->missing rather than check whether args->devid and args->uuid is default value.

The following products are affected by CVE-2022-49849 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2022-49849.

URL	Resource
https://git.kernel.org/stable/c/0fca385d6ebc3cabb20f67bcf8a71f1448bdc001
https://git.kernel.org/stable/c/bc6c127c377010f136360552ebf91c2723081c1b
https://git.kernel.org/stable/c/c9fe4719c662e0af17eea723cf345e37719fd3c9
https://lore.kernel.org/linux-cve-announce/2025050143-CVE-2022-49849-e2cc@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2022-49849
https://www.cve.org/CVERecord?id=CVE-2022-49849