CVE-2024-42090: pinctrl: fix deadlock in create_pinctrl() when handling -EPROBE_DEFER
First published: Mon Jul 29 2024(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <4.19.317 | 4.19.317 |
| redhat/kernel | <5.4.279 | 5.4.279 |
| redhat/kernel | <5.10.221 | 5.10.221 |
| redhat/kernel | <5.15.162 | 5.15.162 |
| redhat/kernel | <6.1.97 | 6.1.97 |
| redhat/kernel | <6.6.37 | 6.6.37 |
| redhat/kernel | <6.9.8 | 6.9.8 |
| redhat/kernel | <6.10 | 6.10 |
| Linux Kernel | >=3.10<4.19.317 | |
| Linux Kernel | >=4.20<5.4.279 | |
| Linux Kernel | >=5.5<5.10.221 | |
| Linux Kernel | >=5.11<5.15.162 | |
| Linux Kernel | >=5.16<6.1.97 | |
| Linux Kernel | >=6.2<6.6.37 | |
| Linux Kernel | >=6.7<6.9.8 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.128-1 6.12.21-1 | |
| debian/linux-6.1 | 6.1.129-1~deb11u1 | |
| IBM Security Verify Governance - Identity Manager | <=ISVG 10.0.2 | |
| IBM Security Verify Governance, Identity Manager Software Stack | <=ISVG 10.0.2 | |
| IBM Security Verify Governance, Identity Manager Virtual Appliance | <=ISVG 10.0.2 | |
| IBM Security Verify Governance Identity Manager Container | <=ISVG 10.0.2 |
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Reference Links
- https://lore.kernel.org/linux-cve-announce/2024072946-CVE-2024-42090-5687@gregkh/T
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2301742
- https://access.redhat.com/errata/RHSA-2024:7001
- https://access.redhat.com/errata/RHSA-2024:7000
- https://access.redhat.com/errata/RHSA-2024:8158
- https://access.redhat.com/errata/RHSA-2024:8157
- https://access.redhat.com/errata/RHSA-2024:9315
- https://bugzilla.redhat.com/show_bug.cgi?id=2300552
- https://git.kernel.org/stable/c/e65a0dc2e85efb28e182aca50218e8a056d0ce04
- https://git.kernel.org/stable/c/420ce1261907e5dbeda1e4daffd5b6c76f8188c0
- https://git.kernel.org/stable/c/b813e3fd102a959c5b208ed68afe27e0137a561b
- https://git.kernel.org/stable/c/01fe2f885f7813f8aed5d3704b384a97b1116a9e
- https://git.kernel.org/stable/c/b36efd2e3e22a329444b6b24fa48df6d20ae66e6
- https://git.kernel.org/stable/c/4038c57bf61631219b31f1bd6e92106ec7f084dc
- https://git.kernel.org/stable/c/48a7a7c9571c3e62f17012dd7f2063e926179ddd
- https://git.kernel.org/stable/c/adec57ff8e66aee632f3dd1f93787c13d112b7a1
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-42090
- https://nvd.nist.gov/vuln/detail/CVE-2024-42090
- https://launchpad.net/bugs/cve/CVE-2024-42090
- https://security-tracker.debian.org/tracker/CVE-2024-42090
- https://ubuntu.com/security/CVE-2024-42090
- https://git.kernel.org/linus/adec57ff8e66aee632f3dd1f93787c13d112b7a1
- https://www.ibm.com/support/pages/node/7230443 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2024-42090?
CVE-2024-42090 is classified as a moderate severity vulnerability in the Linux kernel.
How do I fix CVE-2024-42090?
To fix CVE-2024-42090, update to kernel versions 4.19.317, 5.4.279, 5.10.221, 5.15.162, 6.1.97, 6.6.37, 6.9.8, or 6.10 depending on your Linux distribution.
What systems are affected by CVE-2024-42090?
CVE-2024-42090 affects multiple versions of the Linux kernel from 3.10 up to but not including 4.19.317, and various release series after that.
What is the impact of CVE-2024-42090?
The impact of CVE-2024-42090 includes potential deadlock issues during the creation of pinctrl which can affect system stability.
When was CVE-2024-42090 resolved?
CVE-2024-42090 was resolved in recent updates to the Linux kernel, with specific fixes implemented in the new versions released by various distributions.
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