CVE-2024-38388 Affecting kernel-syms package, versions <6.4.0-150600.23.14.2
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Test your applications- Snyk ID SNYK-SLES156-KERNELSYMS-7552778
- published 23 Jul 2024
- disclosed 22 Jul 2024
Introduced: 22 Jul 2024
CVE-2024-38388 Open this link in a new tabHow to fix?
Upgrade SLES:15.6 kernel-syms to version 6.4.0-150600.23.14.2 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:
ALSA: hda/cs_dsp_ctl: Use private_free for control cleanup
Use the control private_free callback to free the associated data block. This ensures that the memory won't leak, whatever way the control gets destroyed.
The original implementation didn't actually remove the ALSA controls in hda_cs_dsp_control_remove(). It only freed the internal tracking structure. This meant it was possible to remove/unload the amp driver while leaving its ALSA controls still present in the soundcard. Obviously attempting to access them could cause segfaults or at least dereferencing stale pointers.
References
- https://www.suse.com/security/cve/CVE-2024-38388.html
- https://bugzilla.suse.com/1226890
- https://git.kernel.org/stable/c/172811e3a557d8681a5e2d0f871dc04a2d17eb13
- https://git.kernel.org/stable/c/191dc1b2ff0fb35e7aff15a53224837637df8bff
- https://git.kernel.org/stable/c/3291486af5636540980ea55bae985f3eaa5b0740
- https://git.kernel.org/stable/c/6e359be4975006ff72818e79dad8fe48293f2eb2