Double Free Affecting kernel-modules package, versions <0:4.18.0-553.16.1.el8_10
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Test your applications- Snyk ID SNYK-CENTOS8-KERNELMODULES-7185150
- published 3 Jun 2024
- disclosed 30 May 2024
Introduced: 30 May 2024
CVE-2024-36940 Open this link in a new tabHow to fix?
Upgrade Centos:8 kernel-modules to version 0:4.18.0-553.16.1.el8_10 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-modules package and not the kernel-modules package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
pinctrl: core: delete incorrect free in pinctrl_enable()
The "pctldev" struct is allocated in devm_pinctrl_register_and_init(). It's a devm_ managed pointer that is freed by devm_pinctrl_dev_release(), so freeing it in pinctrl_enable() will lead to a double free.
The devm_pinctrl_dev_release() function frees the pindescs and destroys the mutex as well.
References
- https://access.redhat.com/security/cve/CVE-2024-36940
- https://git.kernel.org/stable/c/288bc4aa75f150d6f1ee82dd43c6da1b438b6068
- https://git.kernel.org/stable/c/41f88ef8ba387a12f4a2b8c400b6c9e8e54b2cca
- https://git.kernel.org/stable/c/5038a66dad0199de60e5671603ea6623eb9e5c79
- https://git.kernel.org/stable/c/558c8039fdf596a584a92c171cbf3298919c448c
- https://git.kernel.org/stable/c/735f4c6b6771eafe336404c157ca683ad72a040d
- https://git.kernel.org/stable/c/ac7d65795827dc0cf7662384ed27caf4066bd72e
- https://git.kernel.org/stable/c/cdaa171473d98962ae86f2a663d398fda2fbeefd
- https://git.kernel.org/stable/c/f9f1e321d53e4c5b666b66e5b43da29841fb55ba
- https://lists.debian.org/debian-lts-announce/2024/06/msg00019.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html