What’s Vulnerable › Vulnerabilities

CVE-2022-49503: ath9k_htc: fix potential out of bounds access with invalid rxstatus->rs_keyix

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-02-26 · updated 2026-06-17
• Weakness: CWE-125

Description

In the Linux kernel, the following vulnerability has been resolved: ath9k_htc: fix potential out of bounds access with invalid rxstatus->rs_keyix The "rxstatus->rs_keyix" eventually gets passed to test_bit() so we need to ensure that it is within the bitmap. drivers/net/wireless/ath/ath9k/common.c:46 ath9k_cmn_rx_accept() error: passing untrusted data 'rx_stats->rs_keyix' to 'test_bit()'

Affected products

• Linux kernel: from 3.15 before 4.9.318; from 4.10 before 4.14.283; from 4.15 before 4.19.247; from 4.20 before 5.4.198; from 5.5 before 5.10.121; from 5.11 before 5.15.46 — fixed in 4.14.283, 4.19.247, 4.9.318, 5.10.121, 5.15.46, 5.17.14

How to fix

Upgrade to a fixed version: Linux kernel 4.14.283, 4.19.247, 4.9.318, 5.10.121. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0bcb528402cd5e1a6e1833e956fd58a12d509e8e
• https://git.kernel.org/stable/c/2326d398ccd41ba6d93b8346532dfa432ab00fee
• https://git.kernel.org/stable/c/2dc509305cf956381532792cb8dceef2b1504765
• https://git.kernel.org/stable/c/3dad3fed5672828c7fb0465cb66a3d9a70952fa6
• https://git.kernel.org/stable/c/461e4c1f199076275f16bf6f3d3e42c6b6c79f33
• https://git.kernel.org/stable/c/4bdcf32c965c27f55ccc4ee71c1927131115b0bb
• https://git.kernel.org/stable/c/7f6defe0fabc79f29603c6fa3c80e4fe0456a3e9
• https://git.kernel.org/stable/c/a048e0c3caa852397b7b50d4c82a0415c05f7ac3
• https://git.kernel.org/stable/c/eda518db7db16c360bc84379d90675650daa3048

Get alerted when CVE-2022-49503 or the next vulnerability affects your stack