CVE-2024-56785

MEDIUM

Linux Kernel - Device Tree Interrupt Provider Validation Bypass via Malformed PCIe Node

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: MIPS: Loongson64: DTS: Really fix PCIe port nodes for ls7a Fix the dtc warnings: arch/mips/boot/dts/loongson/ls7a-pch.dtsi:68.16-416.5: Warning (interrupt_provider): /bus@10000000/pci@1a000000: '#interrupt-cells' found, but node is not an interrupt provider arch/mips/boot/dts/loongson/ls7a-pch.dtsi:68.16-416.5: Warning (interrupt_provider): /bus@10000000/pci@1a000000: '#interrupt-cells' found, but node is not an interrupt provider arch/mips/boot/dts/loongson/loongson64g_4core_ls7a.dtb: Warning (interrupt_map): Failed prerequisite 'interrupt_provider' And a runtime warning introduced in commit 045b14ca5c36 ("of: WARN on deprecated #address-cells/#size-cells handling"): WARNING: CPU: 0 PID: 1 at drivers/of/base.c:106 of_bus_n_addr_cells+0x9c/0xe0 Missing '#address-cells' in /bus@10000000/pci@1a000000/pci_bridge@9,0 The fix is similar to commit d89a415ff8d5 ("MIPS: Loongson64: DTS: Fix PCIe port nodes for ls7a"), which has fixed the issue for ls2k (despite its subject mentions ls7a).

Scores

CVSS v3 5.5
EPSS 0.0020
EPSS Percentile 10.2%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

Status published
Products (20)
linux/Kernel 5.11.0 - 5.15.174linux
linux/Kernel 5.16.0 - 6.1.120linux
linux/Kernel 5.9.0 - 5.10.231linux
linux/Kernel 6.2.0 - 6.6.66linux
linux/Kernel 6.7.0 - 6.12.5linux
Linux/Linux < 5.9
Linux/Linux 24af105962c8004edb9f5bf84bc587cbb30e52de - 01575f2ff8ba578a3436f230668bd056dc2eb823
Linux/Linux 24af105962c8004edb9f5bf84bc587cbb30e52de - 4fbd66d8254cedfd1218393f39d83b6c07a01917
Linux/Linux 24af105962c8004edb9f5bf84bc587cbb30e52de - 5a2eaa3ad2b803c7ea442c6db7379466ee73c024
Linux/Linux 24af105962c8004edb9f5bf84bc587cbb30e52de - 8ef9ea1503d0a129cc6f5cf48fb63633efa5d766
... and 10 more
Published Jan 08, 2025
Tracked Since Feb 18, 2026