There is a use-after-free in kernel versions before 5.5 due to a race condition between the release of ptp_clock and cdev while resource deallocation. When a (high privileged) process allocates a ptp device file (like /dev/ptpX) and voluntarily goes to sleep. During this time if the underlying device is removed, it can cause an exploitable condition as the process wakes up to terminate and clean all attached files. The system crashes due to the cdev structure being invalid (as already freed) which is pointed to by the inode.
References
Link | Resource |
---|---|
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html | Mailing List Third Party Advisory |
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10690 | Issue Tracking Patch Third Party Advisory |
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html | Mailing List Third Party Advisory |
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html | Mailing List Third Party Advisory |
https://security.netapp.com/advisory/ntap-20200608-0001/ | Third Party Advisory |
https://usn.ubuntu.com/4419-1/ | Third Party Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: redhat
Published: 2020-05-08T13:48:30
Updated: 2020-07-22T06:06:33
Reserved: 2020-03-20T00:00:00
Link: CVE-2020-10690
JSON object: View
NVD Information
Status : Modified
Published: 2020-05-08T15:15:11.880
Modified: 2023-11-07T03:14:12.980
Link: CVE-2020-10690
JSON object: View
Redhat Information
No data.
CWE