Use of Uninitialized Variable in Linux kernel - CVE-2026-98263
Published: October 7, 2026
Vulnerability identifier: #VU153758
CSH Severity: Low
CVSS v4: 0 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-98263
CWE-ID: CWE-457
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause an incorrect stream type to be used for a SoundWire audio stream.
The vulnerability exists due to use of an uninitialized variable in rt712_sdca_dmic_hw_params() when configuring a SoundWire audio stream. A local user can trigger audio stream configuration to cause an incorrect stream type to be used for a SoundWire audio stream.
Affected software
Linux kernel
Debian Linux
linux (Debian package)
Debian Linux
linux (Debian package)
How to mitigate CVE-2026-98263
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3
linux (Debian package) - update to 6.12.113-1
linux (Debian package) - update to 6.12.113-1
External References
- https://git.kernel.org/stable/c/03a5699a0a04309c597683967aaaf25d1e555ea2
- https://git.kernel.org/stable/c/6507055733a9d397289277408b52daf422f8a814
- https://git.kernel.org/stable/c/a318ee718e7448cd6bf62d9b3197b6a6a8d4701e
- https://git.kernel.org/stable/c/c144447c207e2be24d6ac86d544691ba464caad8
- https://git.kernel.org/stable/c/d93988c9e58d37b677f6ee8aceae741c8d1e30ad