CVE-2025-23161

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2025-23161
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-23161.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-23161
Downstream
Related
Published
2025-05-01T12:55:46Z
Modified
2026-08-12T03:30:13Z
Summary
PCI: vmd: Make vmd_dev::cfg_lock a raw_spinlock_t type
Details

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 lgoncalv@redhat.com [kwilczynski: commit log] [bhelgaas: add back report info from https://lore.kernel.org/lkml/20241218115951.83062-1-ryotkkr98@gmail.com/]

Database specific 
{
    "cna_assigner":  "Linux",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/23xxx/CVE-2025-23161.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
185a383ada2e7794b0e82e040223e741b24d2bf8
Fixed
c250262d6485ca333e9821f85b07eb383ec546b1
Fixed
c2968c812339593ac6e2bdd5cc3adabe3f05fa53
Fixed
13e5148f70e81991acbe0bab5b1b50ba699116e7
Fixed
5c3cfcf0b4bf43530788b08a8eaf7896ec567484
Fixed
2358046ead696ca5c7c628d6c0e2c6792619a3e5
Fixed
20d0a9062c031068fa39f725a32f182b709b5525
Fixed
18056a48669a040bef491e63b25896561ee14d90

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-23161.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
4.5.0
Fixed
5.15.181
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.135
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.88
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.24
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.13.12
Type
ECOSYSTEM
Events
Introduced
6.14.0
Fixed
6.14.3

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-23161.json"