CVE-2014-7822

Severity: high (CVSS 7.2 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2015-03-16 · updated 2026-06-17
Weakness: CWE-264

Description

The implementation of certain splice_write file operations in the Linux kernel before 3.16 does not enforce a restriction on the maximum size of a single file, which allows local users to cause a denial of service (system crash) or possibly have unspecified other impact via a crafted splice system call, as demonstrated by use of a file descriptor associated with an ext4 filesystem.

Affected products

Linux kernel: through 3.15.8

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8d0207652cbe27d1f962050737848e5ad4671958
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00020.html
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00009.html
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00008.html
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00009.html
http://rhn.redhat.com/errata/RHSA-2015-0102.html
http://rhn.redhat.com/errata/RHSA-2015-0164.html
http://rhn.redhat.com/errata/RHSA-2015-0674.html
http://rhn.redhat.com/errata/RHSA-2015-0694.html
http://www.debian.org/security/2015/dsa-3170
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html

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