Bug 1831849 (CVE-2020-12652)
Summary: | CVE-2020-12652 kernel: race condition in __mptctl_ioctl function in drivers/message/fusion/mptctl.c allows local users to hold an incorrect lock during the ioctl operation | ||
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Product: | [Other] Security Response | Reporter: | Guilherme de Almeida Suckevicz <gsuckevi> |
Component: | vulnerability | Assignee: | Nobody <nobody> |
Status: | NEW --- | QA Contact: | |
Severity: | low | Docs Contact: | |
Priority: | low | ||
Version: | unspecified | CC: | acaringi, airlied, bhu, blc, bmasney, dvlasenk, hdegoede, hkrzesin, ichavero, itamar, jarodwilson, jeremy, jforbes, jlelli, john.j5live, jonathan, josef, jross, jshortt, jstancek, jwboyer, kcarcia, kernel-maint, kernel-mgr, kyoshida, lgoncalv, linville, masami256, mchehab, mjg59, mlangsdo, nmurray, ptalbert, qzhao, rkeshri, rt-maint, rvrbovsk, steved, williams |
Target Milestone: | --- | Keywords: | Security |
Target Release: | --- | ||
Hardware: | All | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | If docs needed, set a value | |
Doc Text: |
A vulnerability was found in __mptctl_ioctl in drivers/message/fusion/mptctl.c in Fusion MPT base driver 'mptctl' in the SCSI device module, where an incorrect lock leads to a race problem. This flaw allows an attacker with local access and special user (or root) privileges to cause a denial of service.
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Story Points: | --- |
Clone Of: | Environment: | ||
Last Closed: | Type: | --- | |
Regression: | --- | Mount Type: | --- |
Documentation: | --- | CRM: | |
Verified Versions: | Category: | --- | |
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
Cloudforms Team: | --- | Target Upstream Version: | |
Embargoed: | |||
Bug Depends On: | 1831853, 1838204, 1838205 | ||
Bug Blocks: | 1831851 |
Description
Guilherme de Almeida Suckevicz
2020-05-05 18:41:11 UTC
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 1831853] This was fixed for Fedora with the 5.4.14 stable kernel update. Mitigation: Mitigation for this issue is to skip loading the affected module Fusion MPT base driver 'mptctl' onto the system until we have a fix available. This can be done by a blacklist mechanism and will ensure the driver is not loaded at the boot time. ~~~ How do I blacklist a kernel module to prevent it from loading automatically? https://access.redhat.com/solutions/41278 ~~~ |