CVE-2024-36890 Affecting kernel-syms package, versions <6.4.0-150600.23.7.1
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Test your applications- Snyk ID SNYK-SLES156-KERNELSYMS-7719081
- published 20 Aug 2024
- disclosed 25 Jun 2024
Introduced: 25 Jun 2024
CVE-2024-36890 Open this link in a new tabHow to fix?
Upgrade SLES:15.6 kernel-syms to version 6.4.0-150600.23.7.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-syms package and not the kernel-syms package as distributed by SLES.
See How to fix? for SLES:15.6 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
mm/slab: make __free(kfree) accept error pointers
Currently, if an automatically freed allocation is an error pointer that will lead to a crash. An example of this is in wm831x_gpio_dbg_show().
171 char *label __free(kfree) = gpiochip_dup_line_label(chip, i); 172 if (IS_ERR(label)) { 173 dev_err(wm831x->dev, "Failed to duplicate label\n"); 174 continue; 175 }
The auto clean up function should check for error pointers as well, otherwise we're going to keep hitting issues like this.
References
- https://www.suse.com/security/cve/CVE-2024-36890.html
- https://bugzilla.suse.com/1225714
- https://git.kernel.org/stable/c/79cbe0be6c0317b215ddd8bd3e32f0afdac48543
- https://git.kernel.org/stable/c/9f6eb0ab4f95240589ee85fd9886a944cd3645b2
- https://git.kernel.org/stable/c/ac6cf3ce9b7d12acb7b528248df5f87caa25fcdc
- https://git.kernel.org/stable/c/cd7eb8f83fcf258f71e293f7fc52a70be8ed0128