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CVE-2024-56785— MIPS: Loongson64: DTS: Really fix PCIe port nodes for ls7a

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于MIPS架构Loongson64的DTS文件中PCIe端口节点的配置不正确，导致dtc警告和运行时警告出现，可能影响系统的稳定性和正确性。

AI Predicted 3.3 Difficulty: Trivial EPSS 0.21% · P10

Possible ATT&CK Techniques 1 AI

T1562

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux 24af105962c8004edb9f5bf84bc587cbb30e52de< 5a2eaa3ad2b803c7ea442c6db7379466ee73c024 affected
24af105962c8004edb9f5bf84bc587cbb30e52de< a7fd78075031871bc68fc56fdaa6e7a3934064b1 affected
24af105962c8004edb9f5bf84bc587cbb30e52de< c8ee41fc3522c6659e324d90bc2ccd3b6310d7fc affected
24af105962c8004edb9f5bf84bc587cbb30e52de< 8ef9ea1503d0a129cc6f5cf48fb63633efa5d766 affected
24af105962c8004edb9f5bf84bc587cbb30e52de< 01575f2ff8ba578a3436f230668bd056dc2eb823 affected
24af105962c8004edb9f5bf84bc587cbb30e52de< 4fbd66d8254cedfd1218393f39d83b6c07a01917 affected
5.9 affected
< 5.9 unaffected
… +6 more rows
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I. Basic Information for CVE-2024-56785

Vulnerability Information
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Vulnerability Title
MIPS: Loongson64: DTS: Really fix PCIe port nodes for ls7a
Source: CVE Program / CVE List V5
Vulnerability 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).
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于MIPS架构Loongson64的DTS文件中PCIe端口节点的配置不正确，导致dtc警告和运行时警告出现，可能影响系统的稳定性和正确性。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 24af105962c8004edb9f5bf84bc587cbb30e52de ~ 5a2eaa3ad2b803c7ea442c6db7379466ee73c024 -
Linux Linux 5.9 -

II. Public POCs for CVE-2024-56785

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III. Intelligence Information for CVE-2024-56785

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Patches & Fixes for CVE-2024-56785 (6)

Same Patch Batch · Linux · 2025-01-08 · 16 CVEs total

CVE-2024-56779 9.8 CRITICAL nfsd: fix nfs4_openowner leak when concurrent nfsd4_open occur
CVE-2024-56775 7.8 HIGH drm/amd/display: Fix handling of plane refcount
CVE-2024-56784 7.8 HIGH drm/amd/display: Adding array index check to prevent memory corruption
CVE-2024-56770 net/sched: netem: account for backlog updates from child qdisc
CVE-2024-56771 mtd: spinand: winbond: Fix 512GW, 01GW, 01JW and 02JW ECC information
CVE-2024-56773 kunit: Fix potential null dereference in kunit_device_driver_test()
CVE-2024-56772 kunit: string-stream: Fix a UAF bug in kunit_init_suite()
CVE-2024-56774 btrfs: add a sanity check for btrfs root in btrfs_search_slot()
CVE-2024-56776 drm/sti: avoid potential dereference of error pointers
CVE-2024-56777 drm/sti: avoid potential dereference of error pointers in sti_gdp_atomic_check
CVE-2024-56778 drm/sti: avoid potential dereference of error pointers in sti_hqvdp_atomic_check
CVE-2024-56780 quota: flush quota_release_work upon quota writeback
CVE-2024-56782 ACPI: x86: Add adev NULL check to acpi_quirk_skip_serdev_enumeration()
CVE-2024-56783 netfilter: nft_socket: remove WARN_ON_ONCE on maximum cgroup level
CVE-2024-56787 soc: imx8m: Probe the SoC driver as platform driver

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-56785

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