Bug 2300363 (CVE-2024-41020) - CVE-2024-41020 kernel: filelock: Fix fcntl/close race recovery compat path
Summary: CVE-2024-41020 kernel: filelock: Fix fcntl/close race recovery compat path
Keywords:
Status: NEW
Alias: CVE-2024-41020
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2300901
Blocks:
TreeView+ depends on / blocked
 
Reported: 2024-07-29 14:20 UTC by OSIDB Bzimport
Modified: 2024-11-12 09:36 UTC (History)
5 users (show)

Fixed In Version: kernel 4.19.319, kernel 5.4.281, kernel 5.10.223, kernel 5.15.164, kernel 6.1.102, kernel 6.6.43, kernel 6.9.12, kernel 6.10.2, kernel 6.11-rc1
Clone Of:
Environment:
Last Closed:
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2024:9315 0 None None None 2024-11-12 09:36:34 UTC

Description OSIDB Bzimport 2024-07-29 14:20:38 UTC 
In the Linux kernel, the following vulnerability has been resolved:

filelock: Fix fcntl/close race recovery compat path

When I wrote commit 3cad1bc01041 ("filelock: Remove locks reliably when
fcntl/close race is detected"), I missed that there are two copies of the
code I was patching: The normal version, and the version for 64-bit offsets
on 32-bit kernels.
Thanks to Greg KH for stumbling over this while doing the stable
backport...

Apply exactly the same fix to the compat path for 32-bit kernels.
Comment 1 Mauro Matteo Cascella 2024-07-29 19:17:10 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2300901]
Comment 9 Pavel Reichl 2024-07-31 13:54:08 UTC 
Upstream advisory: https://lore.kernel.org/linux-cve-announce/2024072927-CVE-2024-41020-52c6@gregkh/
Comment 10 errata-xmlrpc 2024-11-12 09:36:33 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:9315 https://access.redhat.com/errata/RHSA-2024:9315
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