Bug 2320556 (CVE-2024-49999)

Summary: CVE-2024-49999 kernel: afs: Fix the setting of the server responding flag
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Version: unspecifiedCC: dfreiber, drow, jaltman, jburrell, mdionne, vkumar
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Hardware: All   
OS: Linux   
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Bug Depends On: 2321035    
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Description OSIDB Bzimport 2024-10-21 19:10:32 UTC 
In the Linux kernel, the following vulnerability has been resolved:

afs: Fix the setting of the server responding flag

In afs_wait_for_operation(), we set transcribe the call responded flag to
the server record that we used after doing the fileserver iteration loop -
but it's possible to exit the loop having had a response from the server
that we've discarded (e.g. it returned an abort or we started receiving
data, but the call didn't complete).

This means that op->server might be NULL, but we don't check that before
attempting to set the server flag.
Comment 1 Robb Gatica 2024-10-22 16:31:18 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024102139-CVE-2024-49999-e815@gregkh/T
Comment 2 Avinash Hanwate 2024-10-23 04:19:42 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024102139-CVE-2024-49999-e815@gregkh/T
Comment 3 errata-xmlrpc 2025-05-13 08:30:37 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:6966 https://access.redhat.com/errata/RHSA-2025:6966