SB20240531289 - NULL pointer dereference in Linux kernel typec tcpm driver
Published: May 31, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240531289
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-2024-36893)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the svdm_consume_identity(), tcpm_register_partner_altmodes(), tcpm_init_vconn(), tcpm_typec_connect(), tcpm_typec_disconnect() and tcpm_pwr_opmode_to_rp() functions in drivers/usb/typec/tcpm/tcpm.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/d56d2ca03cc22123fd7626967d096d8661324e57
- https://git.kernel.org/stable/c/789326cafbd1f67f424436b6bc8bdb887a364637
- https://git.kernel.org/stable/c/fc2b655cb6dd2b381f1f284989721002e39b6b77
- https://git.kernel.org/stable/c/ae11f04b452b5205536e1c02d31f8045eba249dd
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.168
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.91
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.31
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8.10