Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: The release path was called before initializing the extent tree in btrfsreadlocked inode. In btrfsreadlocked inode, we call btrfsinitfileextenttree while holding a lock on a read-locked leaf of the subvolume tree...

The vulnerability of the btrfs_read_locked inode() function in the fs/btrfs/inode.c file of the Linux kernel’s file system allows a attacker to cause a service failure.

The vulnerability of the btrfsreadlocked inode function in the fs/btrfs/inode.c file of the Linux kernel’s file system is related to the occurrence of mutual locking. Exploiting this vulnerability could allow a remote attacker to cause service interruptions...