CVE-2024-36940
Published: June 4, 2024Last modified: June 4, 2024
Description
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.8 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.91-r0) |
| Stream | linux-lts | Fixed (6.6.58-r0) |
References
- 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