CVE-2020-12655

Published: May 5, 2020Modified: Jun 17, 2026

5.5

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitability: 1.8 / Impact: 3.6

Source: NVD

Description

An issue was discovered in xfs_agf_verify in fs/xfs/libxfs/xfs_alloc.c in the Linux kernel through 5.6.10. Attackers may trigger a sync of excessive duration via an XFS v5 image with crafted metadata, aka CID-d0c7feaf8767.

Affected (1)

Products: Linux: Linux Kernel

Linux

1 product

Linux Kernel

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	Up to 5.6.10

Related CWEs

CWE-835

Loop with Unreachable Exit Condition ('Infinite Loop')

The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.

References (28)

http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html

Source: cve@mitre.org

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d0c7feaf87678371c2c09b3709400be416b2dc62

Source: cve@mitre.org

PatchVendor Advisory

https://github.com/torvalds/linux/commit/d0c7feaf87678371c2c09b3709400be416b2dc62

Source: cve@mitre.org

PatchThird Party Advisory

https://lists.debian.org/debian-lts-announce/2020/08/msg00019.html

Source: cve@mitre.org

https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html

Source: cve@mitre.org

https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html

Source: cve@mitre.org

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ES5C6ZCMALBEBMKNNCTBSLLSYGFZG3FF/

Source: cve@mitre.org

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IO5XIQSRI747P4RVVTNX7TUPEOCF4OPU/

Source: cve@mitre.org

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IZ2X3TM6RGRUS3KZAS26IJO5XGU7TBBR/

Source: cve@mitre.org

https://lore.kernel.org/linux-xfs/20200221153803.GP9506%40magnolia/

Source: cve@mitre.org

https://security.netapp.com/advisory/ntap-20200608-0001/

Source: cve@mitre.org

https://usn.ubuntu.com/4465-1/

Source: cve@mitre.org

https://usn.ubuntu.com/4483-1/

Source: cve@mitre.org

https://usn.ubuntu.com/4485-1/

Source: cve@mitre.org

http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html