pinctrl: fix deadlock in create_pinctrl() when handling -EPROBE_DEFER

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Summary

CVECVE-2024-42090
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-07-29 17:15:11 UTC
Updated2026-05-12 12:17:03 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Problem Types: CWE-667

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7 e65a0dc2e85efb28e182aca50218e8a056d0ce04 git Not specified
CNA Linux Linux affected 42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7 420ce1261907e5dbeda1e4daffd5b6c76f8188c0 git Not specified
CNA Linux Linux affected 42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7 b813e3fd102a959c5b208ed68afe27e0137a561b git Not specified
CNA Linux Linux affected 42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7 01fe2f885f7813f8aed5d3704b384a97b1116a9e git Not specified
CNA Linux Linux affected 42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7 b36efd2e3e22a329444b6b24fa48df6d20ae66e6 git Not specified
CNA Linux Linux affected 42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7 4038c57bf61631219b31f1bd6e92106ec7f084dc git Not specified
CNA Linux Linux affected 42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7 48a7a7c9571c3e62f17012dd7f2063e926179ddd git Not specified
CNA Linux Linux affected 42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7 adec57ff8e66aee632f3dd1f93787c13d112b7a1 git Not specified
CNA Linux Linux affected 3.10 Not specified
CNA Linux Linux unaffected 3.10 semver Not specified
CNA Linux Linux unaffected 4.19.317 4.19.* semver Not specified
CNA Linux Linux unaffected 5.4.279 5.4.* semver Not specified
CNA Linux Linux unaffected 5.10.221 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.162 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.97 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.37 6.6.* semver Not specified
CNA Linux Linux unaffected 6.9.8 6.9.* semver Not specified
CNA Linux Linux unaffected 6.10 * original_commit_for_fix Not specified
ADP Siemens SIMATIC S7-1500 TM MFP - GNU/Linux Subsystem affected * custom Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/48a7a7c9571c3e62f17012dd7f2063e926179ddd af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/420ce1261907e5dbeda1e4daffd5b6c76f8188c0 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/e65a0dc2e85efb28e182aca50218e8a056d0ce04 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/b36efd2e3e22a329444b6b24fa48df6d20ae66e6 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
cert-portal.siemens.com/productcert/html/ssa-265688.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/adec57ff8e66aee632f3dd1f93787c13d112b7a1 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/01fe2f885f7813f8aed5d3704b384a97b1116a9e af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/b813e3fd102a959c5b208ed68afe27e0137a561b af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
lists.debian.org/debian-lts-announce/2025/01/msg00001.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
git.kernel.org/stable/c/4038c57bf61631219b31f1bd6e92106ec7f084dc af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
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