PCI: vmd: Make vmd_dev::cfg_lock a raw_spinlock_t type (Linux Linux)

CVE-2025-23161
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.15 % · centile 4 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Analyzed

Description

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/]

Faiblesses (CWE)

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 185a383ada2e7794b0e82e040223e741b24d2bf8 < c250262d6485ca333e9821f85b07eb383ec546b1 ; affected 185a383ada2e7794b0e82e040223e741b24d2bf8 < c2968c812339593ac6e2bdd5cc3adabe3f05fa53 ; affected 185a383ada2e7794b0e82e040223e741b24d2bf8 < 13e5148f70e81991acbe0bab5b1b50ba699116e7 ; affected 185a383ada2e7794b0e82e040223e741b24d2bf8 < 5c3cfcf0b4bf43530788b08a8eaf7896ec567484 ; affected 185a383ada2e7794b0e82e040223e741b24d2bf8 < 2358046ead696ca5c7c628d6c0e2c6792619a3e5 ; affected 185a383ada2e7794b0e82e040223e741b24d2bf8 < 20d0a9062c031068fa39f725a32f182b709b5525
Linux · Linuxaffected 4.5 ; unaffected 0 < 4.5 ; unaffected 5.15.181 ≤ 5.15.* ; unaffected 6.1.135 ≤ 6.1.* ; unaffected 6.6.88 ≤ 6.6.* ; unaffected 6.12.24 ≤ 6.12.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD