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CVE-2024-46846— spi: rockchip: Resolve unbalanced runtime PM / system PM handling

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，该漏洞源于在处理PM操作时，未正确处理运行时PM和系统PM的状态。

AI Predicted 3.3 Difficulty: Trivial EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1564.008 · Email Hiding Rules

Affected Version Matrix 10

VendorProduct Version RangeStatus
Linux Linux e882575efc771f130a24322377dc1033551da11d< 14f970a8d03d882b15b97beb83bd84ac8ba6298c affected
e882575efc771f130a24322377dc1033551da11d< d034bff62faea1a2219e0d2f3d17263265f24087 affected
e882575efc771f130a24322377dc1033551da11d< 0efbad8445fbba7896402500a1473450a299a08a affected
e882575efc771f130a24322377dc1033551da11d< be721b451affbecc4ba4eaac3b71cdbdcade1b1b affected
5.18 affected
< 5.18 unaffected
6.1.110≤ 6.1.* unaffected
6.6.51≤ 6.6.* unaffected
… +2 more rows
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I. Basic Information for CVE-2024-46846

Vulnerability Information
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Vulnerability Title
spi: rockchip: Resolve unbalanced runtime PM / system PM handling
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: spi: rockchip: Resolve unbalanced runtime PM / system PM handling Commit e882575efc77 ("spi: rockchip: Suspend and resume the bus during NOIRQ_SYSTEM_SLEEP_PM ops") stopped respecting runtime PM status and simply disabled clocks unconditionally when suspending the system. This causes problems when the device is already runtime suspended when we go to sleep -- in which case we double-disable clocks and produce a WARNing. Switch back to pm_runtime_force_{suspend,resume}(), because that still seems like the right thing to do, and the aforementioned commit makes no explanation why it stopped using it. Also, refactor some of the resume() error handling, because it's not actually a good idea to re-disable clocks on failure.
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，该漏洞源于在处理PM操作时，未正确处理运行时PM和系统PM的状态。
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 e882575efc771f130a24322377dc1033551da11d ~ 14f970a8d03d882b15b97beb83bd84ac8ba6298c -
Linux Linux 5.18 -

II. Public POCs for CVE-2024-46846

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III. Intelligence Information for CVE-2024-46846

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Other References for CVE-2024-46846 (4)

Same Patch Batch · Linux · 2024-09-27 · 66 CVEs total

CVE-2024-46865 9.8 CRITICAL fou: fix initialization of grc
CVE-2024-46823 8.4 HIGH kunit/overflow: Fix UB in overflow_allocation_test
CVE-2024-46831 8.4 HIGH net: microchip: vcap: Fix use-after-free error in kunit test
CVE-2024-46858 8.1 HIGH mptcp: pm: Fix uaf in __timer_delete_sync
CVE-2024-46862 8.0 HIGH ASoC: Intel: soc-acpi-intel-mtl-match: add missing empty item
CVE-2024-46866 7.8 HIGH drm/xe/client: add missing bo locking in show_meminfo()
CVE-2024-46818 7.8 HIGH drm/amd/display: Check gpio_id before used as array index
CVE-2024-46813 7.8 HIGH drm/amd/display: Check link_index before accessing dc->links[]
CVE-2024-46816 7.8 HIGH drm/amd/display: Stop amdgpu_dm initialize when link nums greater than max_links
CVE-2024-46812 7.8 HIGH drm/amd/display: Skip inactive planes within ModeSupportAndSystemConfiguration
CVE-2024-46830 7.8 HIGH KVM: x86: Acquire kvm->srcu when handling KVM_SET_VCPU_EVENTS
CVE-2024-46834 7.8 HIGH ethtool: fail closed if we can't get max channel used in indirection tables
CVE-2024-46842 7.8 HIGH scsi: lpfc: Handle mailbox timeouts in lpfc_get_sfp_info
CVE-2024-46845 7.8 HIGH tracing/timerlat: Only clear timer if a kthread exists
CVE-2024-46847 7.8 HIGH mm: vmalloc: ensure vmap_block is initialised before adding to queue
CVE-2024-46850 7.8 HIGH drm/amd/display: Avoid race between dcn35_set_drr() and dc_state_destruct()
CVE-2024-46852 7.8 HIGH dma-buf: heaps: Fix off-by-one in CMA heap fault handler
CVE-2024-46859 7.8 HIGH platform/x86: panasonic-laptop: Fix SINF array out of bounds accesses
CVE-2024-46803 7.8 HIGH drm/amdkfd: Check debug trap enable before write dbg_ev_file
CVE-2024-46855 7.5 HIGH netfilter: nft_socket: fix sk refcount leaks

Showing top 20 of 66 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-46846

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