NULL pointer dereference in Linux kernel - CVE-2025-22051

Vulnerability details

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to NULL pointer dereference within the agilent_82357a_read(), agilent_82357a_generic_write(), agilent_82357a_take_control_internal(), agilent_82357a_take_control(), agilent_82357a_go_to_standby(), agilent_82357a_request_system_control(), agilent_82357a_interface_clear(), agilent_82357a_enable_eos(), agilent_82357a_disable_eos(), agilent_82357a_primary_address(), agilent_82357a_secondary_address(), agilent_82357a_return_to_local() and nanosec_to_fast_talker_bits() functions in drivers/staging/gpib/agilent_82357a/agilent_82357a.c. A local user can perform a denial of service (DoS) attack.

Affected software

How to mitigate CVE-2025-22051

External References

• https://git.kernel.org/stable/c/50ef6e45bec79da4c5a01fad4dc23466ba255099
• https://git.kernel.org/stable/c/8491e73a5223acb0a4b4d78c3f8b96aa9c5e774d
• https://git.kernel.org/stable/c/e88633705078f40391a9afc6cc8ea3025e6f692b
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.11

Related Security Bulletins

• NULL pointer dereference in Linux kernel gpib agilent_82357a driver
• Ubuntu update for linux
• Ubuntu update for linux-azure
• Ubuntu update for linux-aws