Vulnerability: Denial of Service via xattr Block Caching in Linux Kernel

CVE-2015-8952 · LOW Severity

AV:L/AC:L/AU:N/C:N/I:N/A:P

The mbcache feature in the ext2 and ext4 filesystem implementations in the Linux kernel before 4.6 mishandles xattr block caching, which allows local users to cause a denial of service (soft lockup) via filesystem operations in environments that use many attributes, as demonstrated by Ceph and Samba.

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