Bug 2301504 (CVE-2024-42139)

Summary: CVE-2024-42139 kernel: ice: Fix improper extts handling
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: kernel 6.9.9, kernel 6.10 Doc Type: If docs needed, set a value
Doc Text:
A vulnerability was found in the Linux kernel's ethernet ice driver, where EXTTS events are improperly handled. If the driver is removed while the managing application is running, certain EXTT events might remain enabled. This issue can lead to system instability and crashes.
 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: 2301997    
Bug Blocks:    

Description OSIDB Bzimport 2024-07-30 08:37:21 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ice: Fix improper extts handling

Extts events are disabled and enabled by the application ts2phc.
However, in case where the driver is removed when the application is
running, a specific extts event remains enabled and can cause a kernel
crash.
As a side effect, when the driver is reloaded and application is started
again, remaining extts event for the channel from a previous run will
keep firing and the message "extts on unexpected channel" might be
printed to the user.

To avoid that, extts events shall be disabled when PTP is released.
Comment 1 Mauro Matteo Cascella 2024-07-31 10:21:51 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024073030-CVE-2024-42139-f8ef@gregkh/T
Comment 3 Mauro Matteo Cascella 2024-07-31 10:22:16 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2301997]
Comment 12 errata-xmlrpc 2024-09-24 00:47:18 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Extended Update Support

Via RHSA-2024:7005 https://access.redhat.com/errata/RHSA-2024:7005
Comment 13 errata-xmlrpc 2024-09-24 01:35:10 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Extended Update Support

Via RHSA-2024:7004 https://access.redhat.com/errata/RHSA-2024:7004