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CVE-2024-26807— spi: cadence-qspi: fix pointer reference in runtime PM hooks

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 spi cadence-qspi 中存在指针引用问题，可能会导致内存损坏。

CVSS 7.8 · High EPSS 0.24% · P13

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 23

VendorProduct Version RangeStatus
Linux Linux 79acf7fb856eade9c3d0cf00fd34a04bf5c43a1c< 2c914aac9522f6e93822c18dff233d3e92399c81 affected
2087e85bb66ee3652dafe732bb9b9b896229eafc< 03f1573c9587029730ca68503f5062105b122f61 affected
2087e85bb66ee3652dafe732bb9b9b896229eafc< 34e1d5c4407c78de0e3473e1fbf8fb74dbe66d03 affected
2087e85bb66ee3652dafe732bb9b9b896229eafc< 32ce3bb57b6b402de2aec1012511e7ac4e7449dc affected
e3f9fc9a4f1499cc9e1bad4482d377494e367b3d affected
6716203844bc8489af5e5564f0fa31e0c094a7ff affected
b24f1ecc8fe2ceefc14af02edb1744c246d87bf7 affected
d453f25faf681799d636fe9d6899ad91c45aa11e affected
… +15 more rows
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I. Basic Information for CVE-2024-26807

Vulnerability Information
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Vulnerability Title
spi: cadence-qspi: fix pointer reference in runtime PM hooks
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: Both cadence-quadspi ->runtime_suspend() and ->runtime_resume() implementations start with: struct cqspi_st *cqspi = dev_get_drvdata(dev); struct spi_controller *host = dev_get_drvdata(dev); This obviously cannot be correct, unless "struct cqspi_st" is the first member of " struct spi_controller", or the other way around, but it is not the case. "struct spi_controller" is allocated by devm_spi_alloc_host(), which allocates an extra amount of memory for private data, used to store "struct cqspi_st". The ->probe() function of the cadence-quadspi driver then sets the device drvdata to store the address of the "struct cqspi_st" structure. Therefore: struct cqspi_st *cqspi = dev_get_drvdata(dev); is correct, but: struct spi_controller *host = dev_get_drvdata(dev); is not, as it makes "host" point not to a "struct spi_controller" but to the same "struct cqspi_st" structure as above. This obviously leads to bad things (memory corruption, kernel crashes) directly during ->probe(), as ->probe() enables the device using PM runtime, leading the ->runtime_resume() hook being called, which in turns calls spi_controller_resume() with the wrong pointer. This has at least been reported [0] to cause a kernel crash, but the exact behavior will depend on the memory contents. [0] https://lore.kernel.org/all/20240226121803.5a7r5wkpbbowcxgx@dhruva/ This issue potentially affects all platforms that are currently using the cadence-quadspi driver.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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 spi cadence-qspi 中存在指针引用问题，可能会导致内存损坏。
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 79acf7fb856eade9c3d0cf00fd34a04bf5c43a1c ~ 2c914aac9522f6e93822c18dff233d3e92399c81 -
Linux Linux 6.4 -

II. Public POCs for CVE-2024-26807

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III. Intelligence Information for CVE-2024-26807

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Other References for CVE-2024-26807 (3)

Same Patch Batch · Linux · 2024-04-04 · 32 CVEs total

CVE-2024-26782 9.8 CRITICAL mptcp: fix double-free on socket dismantle
CVE-2024-26800 9.8 CRITICAL tls: fix use-after-free on failed backlog decryption
CVE-2024-26801 8.8 HIGH Bluetooth: Avoid potential use-after-free in hci_error_reset
CVE-2024-26792 7.8 HIGH btrfs: fix double free of anonymous device after snapshot creation failure
CVE-2024-26809 7.8 HIGH netfilter: nft_set_pipapo: release elements in clone only from destroy path
CVE-2024-26808 7.8 HIGH netfilter: nft_chain_filter: handle NETDEV_UNREGISTER for inet/ingress basechain
CVE-2024-26804 7.8 HIGH net: ip_tunnel: prevent perpetual headroom growth
CVE-2024-26802 7.8 HIGH stmmac: Clear variable when destroying workqueue
CVE-2024-26797 7.8 HIGH drm/amd/display: Prevent potential buffer overflow in map_hw_resources
CVE-2024-26795 7.8 HIGH riscv: Sparse-Memory/vmemmap out-of-bounds fix
CVE-2024-26793 7.8 HIGH gtp: fix use-after-free and null-ptr-deref in gtp_newlink()
CVE-2024-26789 7.8 HIGH crypto: arm64/neonbs - fix out-of-bounds access on short input
CVE-2024-26786 7.8 HIGH iommufd: Fix iopt_access_list_id overwrite bug
CVE-2024-26799 7.0 HIGH ASoC: qcom: Fix uninitialized pointer dmactl
CVE-2024-26746 dmaengine: idxd: Ensure safe user copy of completion record
CVE-2024-26788 dmaengine: fsl-qdma: init irq after reg initialization
CVE-2024-26750 af_unix: Drop oob_skb ref before purging queue in GC.
CVE-2024-26806 spi: cadence-qspi: remove system-wide suspend helper calls from runtime PM hooks
CVE-2024-26805 netlink: Fix kernel-infoleak-after-free in __skb_datagram_iter
CVE-2024-26780 af_unix: Fix task hung while purging oob_skb in GC.

Showing top 20 of 32 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-26807

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