CVE-2015-8374

Severity: medium (CVSS 4.0 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2015-12-28 · updated 2026-06-17
Weakness: CWE-200

Description

fs/btrfs/inode.c in the Linux kernel before 4.3.3 mishandles compressed inline extents, which allows local users to obtain sensitive pre-truncation information from a file via a clone action.

Affected products

Linux kernel: through 4.3.2

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0305cd5f7fca85dae392b9ba85b116896eb7c1c7
http://rhn.redhat.com/errata/RHSA-2016-2574.html
http://rhn.redhat.com/errata/RHSA-2016-2584.html
http://www.debian.org/security/2015/dsa-3426
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.3
http://www.openwall.com/lists/oss-security/2015/11/27/2
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html
http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html
http://www.securityfocus.com/bid/78219
http://www.securitytracker.com/id/1034895
http://www.ubuntu.com/usn/USN-2886-1
http://www.ubuntu.com/usn/USN-2887-1

Get alerted when CVE-2015-8374 or the next vulnerability affects your stack