Detections
Analytics
CVE-2021-3739
high
Description
A NULL pointer dereference flaw was found in the btrfs_rm_device function in fs/btrfs/volumes.c in the Linux Kernel, where triggering the bug requires ‘CAP_SYS_ADMIN’. This flaw allows a local attacker to crash the system or leak kernel internal information. The highest threat from this vulnerability is to system availability.
References
https://www.openwall.com/lists/oss-security/2021/08/25/3
https://ubuntu.com/security/CVE-2021-3739
https://security.netapp.com/advisory/ntap-20220407-0006/
https://github.com/torvalds/linux/commit/e4571b8c5e9ffa1e85c0c671995bd4dcc5c75091