SB20250226242 - Use-after-free in Linux kernel net usb driver
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226242
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2022-49501)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the smsc95xx_start_phy() function in drivers/net/usb/smsc95xx.c, within the ax88772_stop() function in drivers/net/usb/asix_devices.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/6d5deb242874d924beccf7eb3cef04c1c3b0da79
- https://git.kernel.org/stable/c/969a1b3ea3cb7d58a16fe12fd1b04bfc0ea40509
- https://git.kernel.org/stable/c/d1408f6b4dd78fb1b9e26bcf64477984e5f85409
- https://git.kernel.org/stable/c/fbda837107f9bd4ec658d2aa88c6856dba606f06
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.14