SB2025071127 - NULL pointer dereference in Linux kernel pinctrl mediatek driver
Published: July 11, 2025
Security Bulletin ID
SB2025071127
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2025-38266)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the mtk_eint_init() function in drivers/pinctrl/mediatek/pinctrl-mtk-common.c, within the mtk_build_eint() function in drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c, within the mtk_eint_find_irq(), mtk_eint_do_init() and devm_kfree() functions in drivers/pinctrl/mediatek/mtk-eint.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.