CVE-2013-1819

Severity: medium (CVSS 4.6 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2013-03-06 · updated 2026-06-16
Weakness: CWE-20

Description

The _xfs_buf_find function in fs/xfs/xfs_buf.c in the Linux kernel before 3.7.6 does not validate block numbers, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by leveraging the ability to mount an XFS filesystem containing a metadata inode with an invalid extent map.

Affected products

Linux kernel: through 3.7.5; 3.0-rc1, 3.0-rc2, 3.0-rc3, 3.0-rc4, 3.0-rc5, 3.0-rc6 (+169)

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=eb178619f930fa2ba2348de332a1ff1c66a31424
http://lists.opensuse.org/opensuse-security-announce/2013-09/msg00003.html
http://lists.opensuse.org/opensuse-security-announce/2013-09/msg00004.html
http://lists.opensuse.org/opensuse-updates/2013-12/msg00129.html
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.7.6
http://www.openwall.com/lists/oss-security/2013/03/05/10
http://www.ubuntu.com/usn/USN-1968-1
http://www.ubuntu.com/usn/USN-1969-1
http://www.ubuntu.com/usn/USN-1970-1
http://www.ubuntu.com/usn/USN-1972-1
http://www.ubuntu.com/usn/USN-1973-1
http://www.ubuntu.com/usn/USN-1975-1

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