SB2025070453 - NULL pointer dereference in Linux kernel wwan t7xx driver
Published: July 4, 2025
Security Bulletin ID
SB2025070453
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-2025-38123)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the t7xx_ccmni_wwan_newlink(), t7xx_ccmni_wwan_dellink(), t7xx_ccmni_recv_skb(), t7xx_ccmni_queue_tx_irq_notify() and t7xx_ccmni_queue_state_notify() functions in drivers/net/wwan/t7xx/t7xx_netdev.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.