CVE-2025-71233

PCI: endpoint: Avoid creating sub-groups asynchronously

MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.14 % · percentile 3 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: Avoid creating sub-groups asynchronously The asynchronous creation of sub-groups by a delayed work could lead to a NULL pointer dereference when the driver directory is removed before the work completes. The crash can be easily reproduced with the following commands: # cd /sys/kernel/config/pci_ep/functions/pci_epf_test # for i in {1..20}; do mkdir test && rmdir test; done BUG: kernel NULL pointer dereference, address: 0000000000000088 ... Call Trace: configfs_register_group+0x3d/0x190 pci_epf_cfs_work+0x41/0x110 process_one_work+0x18f/0x350 worker_thread+0x25a/0x3a0 Fix this issue by using configfs_add_default_group() API which does not have the deadlock problem as configfs_register_group() and does not require the delayed work handler. [mani: slightly reworded the description and added stable list]

Weaknesses (CWE)

  • CWE-476 — NULL Pointer Dereference

References

Scores

VersionScoreVectorScored by
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)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected e85a2d7837622bd99c96f5bbc7f972da90c285a2 < fa9fb38f5fe9c80094c2138354d45cdc8d094d69 ; affected e85a2d7837622bd99c96f5bbc7f972da90c285a2 < 5f609b3bffd4207cf9f2c9b41e1978457a5a1ea9 ; affected e85a2d7837622bd99c96f5bbc7f972da90c285a2 < 8cb905eca73944089a0db01443c7628a9e87012d ; affected e85a2d7837622bd99c96f5bbc7f972da90c285a2 < d9af3cf58bb4c8d6dea4166011c780756b1138b5 ; affected e85a2d7837622bd99c96f5bbc7f972da90c285a2 < 24a253c3aa6d9a2cde46158ce9782e023bfbf32d ; affected e85a2d7837622bd99c96f5bbc7f972da90c285a2 < 73cee890adafa2c219bb865356e08e7f82423fe5
Linux · Linuxaffected 5.12 ; unaffected 0 < 5.12 ; unaffected 5.15.201 ≤ 5.15.* ; unaffected 6.1.164 ≤ 6.1.* ; unaffected 6.6.127 ≤ 6.6.* ; unaffected 6.12.72 ≤ 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