CVE-2024-49929 Information

Description

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.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Reference

https://git.kernel.org/stable/c/6dcadb2ed3b76623ab96e3e7fbeda1a374d01c28 https://git.kernel.org/stable/c/cdbf51bfa4b0411820806777da36d93d49bc49a1 https://git.kernel.org/stable/c/c0b4f5d94934c290479180868a32c15ba36a6d9e https://git.kernel.org/stable/c/557a6cd847645e667f3b362560bd7e7c09aac284

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.5