CVE-2024-42090
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().
Does this matter?
Lower severity and a low EPSS score (0.19%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.19% probability · 8th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-667
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/01fe2f885f7813f8aed5d3704b384a97b1116a9ePatch
- https://git.kernel.org/stable/c/4038c57bf61631219b31f1bd6e92106ec7f084dcPatch
- https://git.kernel.org/stable/c/420ce1261907e5dbeda1e4daffd5b6c76f8188c0Patch
- https://git.kernel.org/stable/c/48a7a7c9571c3e62f17012dd7f2063e926179dddPatch
- https://git.kernel.org/stable/c/adec57ff8e66aee632f3dd1f93787c13d112b7a1Patch
- https://git.kernel.org/stable/c/b36efd2e3e22a329444b6b24fa48df6d20ae66e6Patch
- https://git.kernel.org/stable/c/b813e3fd102a959c5b208ed68afe27e0137a561bPatch
- https://git.kernel.org/stable/c/e65a0dc2e85efb28e182aca50218e8a056d0ce04Patch
- https://git.kernel.org/stable/c/01fe2f885f7813f8aed5d3704b384a97b1116a9ePatch
- https://git.kernel.org/stable/c/4038c57bf61631219b31f1bd6e92106ec7f084dcPatch
- https://git.kernel.org/stable/c/420ce1261907e5dbeda1e4daffd5b6c76f8188c0Patch
- https://git.kernel.org/stable/c/48a7a7c9571c3e62f17012dd7f2063e926179dddPatch
- https://git.kernel.org/stable/c/adec57ff8e66aee632f3dd1f93787c13d112b7a1Patch
- https://git.kernel.org/stable/c/b36efd2e3e22a329444b6b24fa48df6d20ae66e6Patch
- https://git.kernel.org/stable/c/b813e3fd102a959c5b208ed68afe27e0137a561bPatch
- https://git.kernel.org/stable/c/e65a0dc2e85efb28e182aca50218e8a056d0ce04Patch
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.