CVE-2021-4149: Improper Locking

A vulnerability was found in btrfsalloctreeb in fs/btrfs/extent-tree.c in the Linux kernel due to an improper lock operation in btrfs. In this flaw, a user with a local privilege may cause a denial of service DOS due to a deadlock problem...

CVE-2019-19039: Insertion of Sensitive Information into Log File

btrfsfreeextent in fs/btrfs/extent-tree.c in the Linux kernel through 5.3.12 calls btrfsprintleaf in a certain ENOENT case, which allows local users to obtain potentially sensitive information about register values via the dmesg program. NOTE: The BTRFS development team disputes this issues as no...

CVE-2018-14610: Out-of-bounds Read

An issue was discovered in the Linux kernel through 4.17.10. There is out-of-bounds access in writeextentbuffer when mounting and operating a crafted btrfs image, because of a lack of verification that each block group has a corresponding chunk at mount time, within btrfsreadblockgroups in...

CVE-2018-14612: NULL Pointer Dereference

An issue was discovered in the Linux kernel through 4.17.10. There is an invalid pointer dereference in btrfsrootnode when mounting a crafted btrfs image, because of a lack of chunk block group mapping validation in btrfsreadblockgroups in fs/btrfs/extent-tree.c, and a lack of empty-tree checks i...