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.
References (14)
Core 14
Core References
Patch x_refsource_confirm
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=eb178619f930fa2ba2348de332a1ff1c66a31424
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-1970-1
Issue Tracking x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=918009
Vendor Advisory x_refsource_confirm
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.7.6
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-1975-1
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2013-09/msg00003.html
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-updates/2013-12/msg00129.html
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-1968-1
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-1969-1
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2013-09/msg00004.html
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-1973-1
Mailing List mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2013/03/05/10
Patch x_refsource_confirm
https://github.com/torvalds/linux/commit/eb178619f930fa2ba2348de332a1ff1c66a31424
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-1972-1
Scores
EPSS
0.0005
EPSS Percentile
16.7%
Details
CWE
CWE-20
Status
published
Products (44)
linux/linux_kernel
3.0 rc1 (7 CPE variants)
linux/linux_kernel
3.0.1
linux/linux_kernel
3.0.2
linux/linux_kernel
3.0.3
linux/linux_kernel
3.0.4
linux/linux_kernel
3.0.5
linux/linux_kernel
3.0.6
linux/linux_kernel
3.0.7
linux/linux_kernel
3.0.8
linux/linux_kernel
3.0.9
... and 34 more
Published
Mar 06, 2013
Tracked Since
Feb 18, 2026