CVE-2024-49929
Published: October 23, 2024Last modified: October 23, 2024
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.
Severity score breakdown
Parameter | Value |
---|---|
Base score | 5.5 |
Attack Vector | LOCAL |
Attack complexity | LOW |
Privileges required | LOW |
User interaction | NONE |
Scope | UNCHANGED |
Confidentiality | NONE |
Integrity impact | NONE |
Availability impact | HIGH |
Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Status
Product | Release | Package | Status |
---|---|---|---|
Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.120-r0) |
Stream | linux-lts | Fixed (6.6.58-r0) |
References
- https://git.kernel.org/stable/c/557a6cd847645e667f3b362560bd7e7c09aac284
- https://git.kernel.org/stable/c/6dcadb2ed3b76623ab96e3e7fbeda1a374d01c28
- https://git.kernel.org/stable/c/c0b4f5d94934c290479180868a32c15ba36a6d9e
- https://git.kernel.org/stable/c/cbc6fc9cfcde151ff5eadaefdc6155f99579384f
- https://git.kernel.org/stable/c/cdbf51bfa4b0411820806777da36d93d49bc49a1