CVE-2024-42090: Linux kernel · pinctrl: fix deadlock in create_pinctrl() when handling -EPROBE_DEFER
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 5.5 Medium · fixed in 4.4.0-1139.145 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 23:28 UTC
- Patch
- Available – fixed in 4.4.0-1139.145, 4.15.0-1184.199~14.04.1, 4.4.0-262.296~14.04.1 +99
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 29 Jul 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Patches and advisories
- ubuntu.com/security/notices/USN-7003-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7003-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7006-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7003-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-7007-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7009-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7019-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7007-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7007-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-7009-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7003-4 (opens in a new tab)
- ubuntu.com/security/notices/USN-7003-5 (opens in a new tab)
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 24.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-gkeoppkg:deb/ubuntu/linux-gkeop?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
In the Linux kernel, the following vulnerability has been resolved: pinctrl: fix deadlock in create_pinctrl() when handling -EPROBE_DEFER In create_pinctrl(), pinctrl_maps_mutex is acquired before calling add_setting(). If add_setting() returns -EPROBE_DEFER, create_pinctrl() calls pinctrl_free(). However, pinctrl_free() attempts to acquire pinctrl_maps_mutex, which is already held by create_pinctrl(), leading to a potential deadlock. This patch resolves the issue by releasing pinctrl_maps_mutex before calling pinctrl_free(), preventing the deadlock. This bug was discovered and resolved using Coverity Static Analysis Security Testing (SAST) by Synopsys, Inc.
References
- ubuntu.com/security/CVE-2024-42090 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2024-42090 (opens in a new tab)
- git.kernel.org/linus/adec57ff8e66aee632f3dd1f93787c13d112b7a1 (opens in a new tab)
- git.kernel.org/stable/c/e65a0dc2e85efb28e182aca50218e8a056d0ce04 (opens in a new tab)
- git.kernel.org/stable/c/420ce1261907e5dbeda1e4daffd5b6c76f8188c0 (opens in a new tab)
- git.kernel.org/stable/c/b813e3fd102a959c5b208ed68afe27e0137a561b (opens in a new tab)
- git.kernel.org/stable/c/01fe2f885f7813f8aed5d3704b384a97b1116a9e (opens in a new tab)
- git.kernel.org/stable/c/b36efd2e3e22a329444b6b24fa48df6d20ae66e6 (opens in a new tab)
- git.kernel.org/stable/c/4038c57bf61631219b31f1bd6e92106ec7f084dc (opens in a new tab)
- git.kernel.org/stable/c/48a7a7c9571c3e62f17012dd7f2063e926179ddd (opens in a new tab)
- git.kernel.org/stable/c/adec57ff8e66aee632f3dd1f93787c13d112b7a1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7003-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7003-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7006-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7003-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-7007-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7009-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7019-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7007-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7007-3 (opens in a new tab)