cbcvebase.
CVE-2025-23161
published 2025-05-01

CVE-2025-23161: In the Linux kernel, the following vulnerability has been resolved: PCI: vmd: Make vmd_dev::cfg_lock a raw_spinlock_t type The access to the PCI config space…

PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.14%
3.7th percentile
In the Linux kernel, the following vulnerability has been resolved: PCI: vmd: Make vmd_dev::cfg_lock a raw_spinlock_t type The access to the PCI config space via pci_ops::read and pci_ops::write is a low-level hardware access. The functions can be accessed with disabled interrupts even on PREEMPT_RT. The pci_lock is a raw_spinlock_t for this purpose. A spinlock_t becomes a sleeping lock on PREEMPT_RT, so it cannot be acquired with disabled interrupts. The vmd_dev::cfg_lock is accessed in the same context as the pci_lock. Make vmd_dev::cfg_lock a raw_spinlock_t type so it can be used with interrupts disabled. This was reported as: BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48 Call Trace: rt_spin_lock+0x4e/0x130 vmd_pci_read+0x8d/0x100 [vmd] pci_user_read_config_byte+0x6f/0xe0 pci_read_config+0xfe/0x290 sysfs_kf_bin_read+0x68/0x90 [bigeasy: reword commit message] Tested-off-by: Luis Claudio R. Goncalves [kwilczynski: commit log] [bhelgaas: add back report info from https://lore.kernel.org/lkml/[email protected]/]

Affected

34 ranges· showing 25
VendorProductVersion rangeFixed in
debiandebian_linux
debianlinux< linux 6.1.135-1 (bookworm)linux 6.1.135-1 (bookworm)
debianlinux-6.1< linux 6.1.135-1 (bookworm)linux 6.1.135-1 (bookworm)
linuxlinux
linuxlinux>= 185a383ada2e7794b0e82e040223e741b24d2bf8 < c250262d6485ca333e9821f85b07eb383ec546b1c250262d6485ca333e9821f85b07eb383ec546b1
linuxlinux>= 185a383ada2e7794b0e82e040223e741b24d2bf8 < c2968c812339593ac6e2bdd5cc3adabe3f05fa53c2968c812339593ac6e2bdd5cc3adabe3f05fa53
linuxlinux>= 185a383ada2e7794b0e82e040223e741b24d2bf8 < 13e5148f70e81991acbe0bab5b1b50ba699116e713e5148f70e81991acbe0bab5b1b50ba699116e7
linuxlinux>= 185a383ada2e7794b0e82e040223e741b24d2bf8 < 5c3cfcf0b4bf43530788b08a8eaf7896ec5674845c3cfcf0b4bf43530788b08a8eaf7896ec567484
linuxlinux>= 185a383ada2e7794b0e82e040223e741b24d2bf8 < 2358046ead696ca5c7c628d6c0e2c6792619a3e52358046ead696ca5c7c628d6c0e2c6792619a3e5
linuxlinux>= 185a383ada2e7794b0e82e040223e741b24d2bf8 < 20d0a9062c031068fa39f725a32f182b709b552520d0a9062c031068fa39f725a32f182b709b5525
linuxlinux>= 185a383ada2e7794b0e82e040223e741b24d2bf8 < 18056a48669a040bef491e63b25896561ee14d9018056a48669a040bef491e63b25896561ee14d90
linuxlinux_kernel< 5.15.1815.15.181
linuxlinux_kernel>= 0 < 6.1.135-16.1.135-1
linuxlinux_kernel>= 0 < 6.12.25-16.12.25-1
linuxlinux_kernel>= 0 < 6.12.25-16.12.25-1
linuxlinux_kernel>= 0 < 5.15.0-144.1575.15.0-144.157
linuxlinux_kernel>= 0 < 6.8.0-100.1006.8.0-100.100
linuxlinux_kernel>= 0 < 6.14.0-22.226.14.0-22.22
linuxlinux_kernel>= 5.16 < 6.1.1356.1.135
linuxlinux_kernel>= 6.13 < 6.13.126.13.12
linuxlinux_kernel>= 6.14 < 6.14.36.14.3
linuxlinux_kernel>= 6.2 < 6.6.886.6.88
linuxlinux_kernel>= 6.7 < 6.12.246.12.24
msrcazl3_kernel_6.6.85.1-4_on_azure_linux_3.0
msrcazl3_kernel_6.6.92.2-1_on_azure_linux_3.0

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
vendor_msrc3.3LOW
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