Bugzilla – Bug 1227627
VUL-0: CVE-2024-39491: kernel: ALSA: hda: cs35l56: Fix lifetime of cs_dsp instance
Last modified: 2024-07-10 15:35:33 UTC
In the Linux kernel, the following vulnerability has been resolved: ALSA: hda: cs35l56: Fix lifetime of cs_dsp instance The cs_dsp instance is initialized in the driver probe() so it should be freed in the driver remove(). Also fix a missing call to cs_dsp_remove() in the error path of cs35l56_hda_common_probe(). The call to cs_dsp_remove() was being done in the component unbind callback cs35l56_hda_unbind(). This meant that if the driver was unbound and then re-bound it would be using an uninitialized cs_dsp instance. It is best to initialize the cs_dsp instance in probe() so that it can return an error if it fails. The component binding API doesn't have any error handling so there's no way to handle a failure if cs_dsp was initialized in the bind. References: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-39491 https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-39491.mbox https://git.kernel.org/stable/c/9054c474f9c219e58a441e401c0e6e38fe713ff1 https://git.kernel.org/stable/c/60d5e087e5f334475b032ad7e6ad849fb998f303 https://git.kernel.org/stable/c/d344873c4cbde249b7152d36a273bcc45864001e https://www.cve.org/CVERecord?id=CVE-2024-39491 https://bugzilla.redhat.com/show_bug.cgi?id=2297061