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CVE-2024-26806— spi: cadence-qspi: remove system-wide suspend helper calls from runtime PM hooks

EPSS 0.01% · P2
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I. Basic Information for CVE-2024-26806

Vulnerability Information
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Vulnerability Title
spi: cadence-qspi: remove system-wide suspend helper calls from runtime PM hooks
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: spi: cadence-qspi: remove system-wide suspend helper calls from runtime PM hooks The ->runtime_suspend() and ->runtime_resume() callbacks are not expected to call spi_controller_suspend() and spi_controller_resume(). Remove calls to those in the cadence-qspi driver. Those helpers have two roles currently: - They stop/start the queue, including dealing with the kworker. - They toggle the SPI controller SPI_CONTROLLER_SUSPENDED flag. It requires acquiring ctlr->bus_lock_mutex. Step one is irrelevant because cadence-qspi is not queued. Step two however has two implications: - A deadlock occurs, because ->runtime_resume() is called in a context where the lock is already taken (in the ->exec_op() callback, where the usage count is incremented). - It would disallow all operations once the device is auto-suspended. Here is a brief call tree highlighting the mutex deadlock: spi_mem_exec_op() ... spi_mem_access_start() mutex_lock(&ctlr->bus_lock_mutex) cqspi_exec_mem_op() pm_runtime_resume_and_get() cqspi_resume() spi_controller_resume() mutex_lock(&ctlr->bus_lock_mutex) ... spi_mem_access_end() mutex_unlock(&ctlr->bus_lock_mutex) ...
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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 中存在安全问题。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux 0578a6dbfe7514db7134501cf93acc21cf13e479 ~ 041562ebc4759c9932b59a06527f8753b86da365 -
LinuxLinux 6.7 -

II. Public POCs for CVE-2024-26806

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III. Intelligence Information for CVE-2024-26806

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

CVE-2024-26792btrfs: fix double free of anonymous device after snapshot creation failure
CVE-2024-26809netfilter: nft_set_pipapo: release elements in clone only from destroy path
CVE-2024-26808netfilter: nft_chain_filter: handle NETDEV_UNREGISTER for inet/ingress basechain
CVE-2024-26807spi: cadence-qspi: fix pointer reference in runtime PM hooks
CVE-2024-26805netlink: Fix kernel-infoleak-after-free in __skb_datagram_iter
CVE-2024-26804net: ip_tunnel: prevent perpetual headroom growth
CVE-2024-26803net: veth: clear GRO when clearing XDP even when down
CVE-2024-26802stmmac: Clear variable when destroying workqueue
CVE-2024-26800tls: fix use-after-free on failed backlog decryption
CVE-2024-26801Bluetooth: Avoid potential use-after-free in hci_error_reset
CVE-2024-26799ASoC: qcom: Fix uninitialized pointer dmactl
CVE-2024-26798fbcon: always restore the old font data in fbcon_do_set_font()
CVE-2024-26797drm/amd/display: Prevent potential buffer overflow in map_hw_resources
CVE-2024-26796drivers: perf: ctr_get_width function for legacy is not defined
CVE-2024-26795riscv: Sparse-Memory/vmemmap out-of-bounds fix
CVE-2024-26793gtp: fix use-after-free and null-ptr-deref in gtp_newlink()
CVE-2024-26745powerpc/pseries/iommu: IOMMU table is not initialized for kdump over SR-IOV
CVE-2024-26791btrfs: dev-replace: properly validate device names
CVE-2024-26790dmaengine: fsl-qdma: fix SoC may hang on 16 byte unaligned read
CVE-2024-26789crypto: arm64/neonbs - fix out-of-bounds access on short input

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

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-26806

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