CVE-2024-49929: wifi: iwlwifi: mvm: avoid NULL pointer dereference
First published: Mon Oct 21 2024(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | <6.6.55 | |
| Linux Kernel | >=6.7<6.10.14 | |
| Linux Kernel | >=6.11<6.11.3 | |
| debian/linux | <=5.10.223-1<=5.10.226-1 | 6.1.123-1 6.1.128-1 6.12.12-1 6.12.15-1 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://git.kernel.org/stable/c/cbc6fc9cfcde151ff5eadaefdc6155f99579384f
- 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
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-49929
- https://nvd.nist.gov/vuln/detail/CVE-2024-49929
- https://launchpad.net/bugs/cve/CVE-2024-49929
- https://security-tracker.debian.org/tracker/CVE-2024-49929
- https://ubuntu.com/security/CVE-2024-49929
- https://git.kernel.org/linus/557a6cd847645e667f3b362560bd7e7c09aac284
- agent/title
- agent/type
- agent/description
- agent/first-publish-date
- agent/author
- agent/remedy
- agent/severity
- agent/weakness
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/trending
- agent/source
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- agent/softwarecombine
- agent/tags
- collector/usn-cve
- source/Ubuntu
- collector/launchpad-cve
- source/Launchpad
- collector/nvd-cve
- collector/security-tracker-debian
- source/Debian
- agent/event
- agent/references
- vendor/linux
- canonical/linux kernel
- version/linux kernel/6.7
- version/linux kernel/6.11
- package-manager/debian