CVE-2024-42319: Linux kernel · mailbox: mtk-cmdq: Move devm_mbox_controller_register() after devm_pm_runtime_enable()
Source GCVE Database
Not known to be exploited · CVSS 5.5 Medium.
Data as of 30 Oct 2026, 00:37 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 17 Aug 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 is available by reordering the calls in the cmdq_probe() function to call devm_mbox_controller_register() after devm_pm_runtime_enable(). Users should apply the updated Linux kernel patches that address this issue. No other mitigations are indicated.
Description
CVE-2024-42319 is a medium-severity vulnerability in the Linux kernel's mtk-cmdq mailbox driver. The issue arises from the incorrect order of calls in the cmdq_probe() function, where devm_mbox_controller_register() is called before devm_pm_runtime_enable(). This leads to a WARN_ON message triggered by pm_runtime_get_sync() being called after pm_runtime_disable() during device unbinding, causing potential kernel warnings and instability.
References
- nvd.nist.gov/vuln/detail/CVE-2024-42319 (opens in a new tab)
- git.kernel.org/stable/c/11fa625b45faf0649118b9deaf2d31c86ac41911 (opens in a new tab)
- git.kernel.org/stable/c/1403991a40b94438a2acc749bf05c117abdb34f9 (opens in a new tab)
- git.kernel.org/stable/c/a8bd68e4329f9a0ad1b878733e0f80be6a971649 (opens in a new tab)
- git.kernel.org/stable/c/d00df6700ad10974a7e20646956f4ff22cdbe0ec (opens in a new tab)
- lists.debian.org/debian-lts-announce/2025/03/msg00001.html (opens in a new tab)