CVE-2024-53048 ice: fix crash on probe for DPLL enabled E810 LOM
A null pointer dereference in the ice driver causes a kernel crash during probe on specific DPLL-enabled E810 hardware, leading to denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-53048?
CVE-2024-53048 is a medium-severity vulnerability in Linux kernel, published on 19 Nov 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
ice: fix crash on probe for DPLL enabled E810 LOM
The E810 Lan On Motherboard (LOM) design is vendor specific. Intel provides the reference design, but it is up to vendor on the final product design. For some cases, like Linux DPLL support, the static values defined in the driver does not reflect the actual LOM design. Current implementation of dpll pins is causing the crash on probe of the ice driver for such DPLL enabled E810 LOM designs:
WARNING: (...) at drivers/dpll/dpll_core.c:495 dpll_pin_get+0x2c4/0x330 ... Call Trace: <TASK> ? __warn+0x83/0x130 ? dpll_pin_get+0x2c4/0x330 ? report_bug+0x1b7/0x1d0 ? handle_bug+0x42/0x70 ? exc_invalid_op+0x18/0x70 ? asm_exc_invalid_op+0x1a/0x20 ? dpll_pin_get+0x117/0x330 ? dpll_pin_get+0x2c4/0x330 ? dpll_pin_get+0x117/0x330 ice_dpll_get_pins.isra.0+0x52/0xe0 [ice] ...
The number of dpll pins enabled by LOM vendor is greater than expected and defined in the driver for Intel designed NICs, which causes the crash.
Prevent the crash and allow generic pin initialization within Linux DPLL subsystem for DPLL enabled E810 LOM designs.
Newly designed solution for described issue will be based on "per HW design" pin initialization. It requires pin information dynamically acquired from the firmware and is already in progress, planned for next-tree only.
Which versions are affected by CVE-2024-53048?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-53048?
Apply the vendor's patch.
Is CVE-2024-53048 being exploited?
There is no known exploitation of CVE-2024-53048 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-53048, DEBIAN-CVE-2024-53048, GHSA-r6fq-j5gx-rmcc, UBUNTU-CVE-2024-53048.