SB20260815235 - Use of Uninitialized Variable in Linux kernel iio accel driver
Published: August 15, 2026
Security Bulletin ID
SB20260815235
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Use of Uninitialized Variable (CVE-ID: CVE-2026-72479)
CWE-ID: CWE-457 - Use of Uninitialized Variable
CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a local user to disclose sensitive information.
The vulnerability exists due to use of uninitialized memory in mma8452_read_raw() when handling a failed I2C block read in mma8452_read(). A local user can trigger an I2C read failure and cause the caller to use uninitialized stack memory to disclose sensitive information.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/1cddef80a180af74c33d2f26c962ce92b60fded4
- https://git.kernel.org/stable/c/5bdff291d20c31b365d9ddfe9c426fbfb41da5bb
- https://git.kernel.org/stable/c/b488055e81d9faaaf2f8aaff45f9944040ac4493
- https://git.kernel.org/stable/c/b4932fc325e84a3233413daf230b043818c8a824
- https://git.kernel.org/stable/c/eed69f8a10b82989ad732ace0fb43a9fb4e7fe35
- https://git.kernel.org/stable/c/f3d413e701c5e54bef736b638967724dda880365
- https://git.kernel.org/stable/c/f3d905ea1e4996d933074481e80d96ecd74a9904
- https://git.kernel.org/stable/c/f9ec3f3e9cf27dd06cd3725eeaa44e3ce46be893