CVE-2023-54300
In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: avoid referencing uninit memory in ath9k_wmi_ctrl_rx For the reasons also described in commit b383e8abed41 ("wifi: ath9k: avoid uninit memory read in ath9k_htc_rx_msg()"),…
Does this matter?
Not yet scored. NVD analysis is pending; check back once CVSS and EPSS values are published.
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: avoid referencing uninit memory in ath9k_wmi_ctrl_rx For the reasons also described in commit b383e8abed41 ("wifi: ath9k: avoid uninit memory read in ath9k_htc_rx_msg()"), ath9k_htc_rx_msg() should validate pkt_len before accessing the SKB. For example, the obtained SKB may have been badly constructed with pkt_len = 8. In this case, the SKB can only contain a valid htc_frame_hdr but after being processed in ath9k_htc_rx_msg() and passed to ath9k_wmi_ctrl_rx() endpoint RX handler, it is expected to have a WMI command header which should be located inside its data payload. Implement sanity checking inside ath9k_wmi_ctrl_rx(). Otherwise, uninit memory can be referenced. Tested on Qualcomm Atheros Communications AR9271 802.11n . Found by Linux Verification Center (linuxtesting.org) with Syzkaller.
- CVSS
- Not yet scored
- EPSS
- 0.23% probability · 14th percentile
- CISA KEV
- Not listed
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/0bc12e41af4e3ae1f0efecc377f0514459df0707
- https://git.kernel.org/stable/c/250efb4d3f5b32a115ea6bf25437ba44a1b3c04f
- https://git.kernel.org/stable/c/28259ce4f1f1f9ab37fa817756c89098213d2fc0
- https://git.kernel.org/stable/c/75acec91aeaa07375cd5f418069e61b16d39bbad
- https://git.kernel.org/stable/c/8ed572e52714593b209e3aa352406aff84481179
- https://git.kernel.org/stable/c/90e3c10177573b8662ac9858abd9bf731d5d98e0
- https://git.kernel.org/stable/c/ad5425e70789c29b93acafb5bb4629e4eb908296
- https://git.kernel.org/stable/c/d1c2ff2bd84c3692c9df267a2b991ce92bfca8ef
- https://git.kernel.org/stable/c/f24292e827088bba8de7158501ac25a59b064953
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.