CVE-2025-38473

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.16.0-rc4-syzkaller-g7482bb149b9f

Description The Linux kernel contained a null-pointer dereference issue within the l2cap sock resume cb() function, identified by syzbot. This issue stemmed from a potential access to a killed socket within the function, similar to a previously fixed use-after-free error in lock sock nested(). The vulnerability was triggered during the execution of l2cap sock resume cb() and could lead to system instability. The issue was reported through a KASAN (Kernel Address Sanitizer) report, indicating a write operation to an invalid memory address.

Recommendations Linux kernel versions prior to 6.16.0-rc4-syzkaller-g7482bb149b9f should be updated to version 6.16.0-rc4-syzkaller-g7482bb149b9f or later to resolve this issue.