Bug 2271690 (CVE-2023-52621) - CVE-2023-52621 kernel: bpf: Check rcu_read_lock_trace_held() before calling bpf map helpers
Summary: CVE-2023-52621 kernel: bpf: Check rcu_read_lock_trace_held() before calling b...
Keywords:
Status: NEW
Alias: CVE-2023-52621
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2271691
Blocks: 2271782
TreeView+ depends on / blocked
 
Reported: 2024-03-26 21:41 UTC by Marco Benatto
Modified: 2024-11-12 09:20 UTC (History)
50 users (show)

Fixed In Version: kernel 6.1.77, kernel 6.6.16, kernel 6.7.4, kernel 6.8
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 09:20:55 UTC

Description Marco Benatto 2024-03-26 21:41:52 UTC 
In the Linux kernel, the following vulnerability has been resolved:

bpf: Check rcu_read_lock_trace_held() before calling bpf map helpers

The Linux kernel CVE team has assigned CVE-2023-52621 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/20240326171931.1354035-4-lee@kernel.org/T
Comment 1 Marco Benatto 2024-03-26 21:42:26 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2271691]
Comment 5 Justin M. Forbes 2024-03-27 20:36:00 UTC 
This was fixed for Fedora with the 6.7.4 stable kernel updates.
Comment 6 Alex 2024-06-09 16:28:08 UTC 
The result of automatic check (that is developed by Alexander Larkin) for this CVE-2023-52621 is: CHECK	Maybe valid. Check manually. with impact LOW (that is an approximation based on flags LOCK WARNONLY BPF  ; these flags parsed automatically based on patch data). Such automatic check happens only for Low/Moderates (and only when not from reporter, but parsing already existing CVE). Highs always checked manually (I check it myself and then we check it again in Remediation team). In rare cases some of the Moderates could be increased to High later.
Comment 7 errata-xmlrpc 2024-11-12 09:20:52 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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