Bug 2320497 (CVE-2024-49929) - CVE-2024-49929 kernel: wifi: iwlwifi: mvm: avoid NULL pointer dereference
Summary: CVE-2024-49929 kernel: wifi: iwlwifi: mvm: avoid NULL pointer dereference
Keywords:
Status: NEW
Alias: CVE-2024-49929
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: 2320978
Blocks:
TreeView+ depends on / blocked
 
Reported: 2024-10-21 19:05 UTC by OSIDB Bzimport
Modified: 2025-05-13 08:30 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2025:6966 0 None None None 2025-05-13 08:30:13 UTC

Description OSIDB Bzimport 2024-10-21 19:05:58 UTC 
In the Linux kernel, the following vulnerability has been resolved:

wifi: iwlwifi: mvm: avoid NULL pointer dereference

iwl_mvm_tx_skb_sta() and iwl_mvm_tx_mpdu() verify that the mvmvsta
pointer is not NULL.
It retrieves this pointer using iwl_mvm_sta_from_mac80211, which is
dereferencing the ieee80211_sta pointer.
If sta is NULL, iwl_mvm_sta_from_mac80211 will dereference a NULL
pointer.
Fix this by checking the sta pointer before retrieving the mvmsta
from it. If sta is not NULL, then mvmsta isn't either.
Comment 1 Michal Findra 2024-10-22 13:07:15 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024102125-CVE-2024-49929-1031@gregkh/T
Comment 2 errata-xmlrpc 2025-05-13 08:30:11 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
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