CVE-2024-49939: Linux kernel · wifi: rtw89: avoid to add interface to list twice when SER
Source GCVE Database
Not known to be exploited · CVSS 5.5 Medium.
Data as of 30 Oct 2026, 00:41 UTC
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 21 Oct 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
AI-suggested
A fix has been implemented in the Linux kernel to add a check preventing the double addition of the interface to the list. Users should update to the fixed kernel version once available. Since this is a kernel-level issue, applying the official kernel patch or upgrading to a kernel version that includes this fix is the recommended mitigation.
Description
CVE-2024-49939 is a vulnerability in the Linux kernel's rtw89 Wi-Fi driver where an interface can be added twice to a list during the WoWLAN resume flow if a SER L2 event occurs. This double addition causes a kernel panic due to list corruption. The issue arises because the add interface flow is triggered twice after a failure in rtw89_wow_resume(), leading to a kernel crash.
References
- nvd.nist.gov/vuln/detail/CVE-2024-49939 (opens in a new tab)
- git.kernel.org/stable/c/37c319503023de49a4c87301c8998c8d928112cb (opens in a new tab)
- git.kernel.org/stable/c/490eddc836b2a6ec286e5df14bed4c7cf5e1f475 (opens in a new tab)
- git.kernel.org/stable/c/7dd5d2514a8ea58f12096e888b0bd050d7eae20a (opens in a new tab)
- git.kernel.org/stable/c/b04650b5a9990cf5c0de480e62c68199f1396a04 (opens in a new tab)
- git.kernel.org/stable/c/fdc73f2cfbe897f4733156df211d79ced649b23c (opens in a new tab)
- lists.debian.org/debian-lts-announce/2025/03/msg00001.html (opens in a new tab)