Description
The dispatch_discard_io function in drivers/block/xen-blkback/blkback.c in the Xen blkback implementation in the Linux kernel before 3.10.5 allows guest OS users to cause a denial of service (data loss) via filesystem write operations on a read-only disk that supports the (1) BLKIF_OP_DISCARD (aka discard or TRIM) or (2) SCSI UNMAP feature.
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=604c499cbbcc3d5fe5fb8d53306aa0fae1990109
Vendor Advisory x_refsource_confirm
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.10.5
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-1943-1
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2039-1
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-1938-1
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-1944-1
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-1945-1
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2038-1
Various Sources x_refsource_confirm
http://people.canonical.com/~ubuntu-security/cve/2013/CVE-2013-2140.html
Mailing List mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2013/06/05/21
Exploit, Patch x_refsource_confirm
https://github.com/torvalds/linux/commit/604c499cbbcc3d5fe5fb8d53306aa0fae1990109
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-1947-1
Issue Tracking x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=971146
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-1946-1
Scores
EPSS
0.0010
EPSS Percentile
26.3%
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
Sep 25, 2013
Tracked Since
Feb 18, 2026