net: macb: fix unregister_netdev call order in macb_remove() (Linux Linux)

CVE-2025-39805
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.16 % · centile 5 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: net: macb: fix unregister_netdev call order in macb_remove() When removing a macb device, the driver calls phy_exit() before unregister_netdev(). This leads to a WARN from kernfs: ------------[ cut here ]------------ kernfs: can not remove 'attached_dev', no directory WARNING: CPU: 1 PID: 27146 at fs/kernfs/dir.c:1683 Call trace: kernfs_remove_by_name_ns+0xd8/0xf0 sysfs_remove_link+0x24/0x58 phy_detach+0x5c/0x168 phy_disconnect+0x4c/0x70 phylink_disconnect_phy+0x6c/0xc0 [phylink] macb_close+0x6c/0x170 [macb] ... macb_remove+0x60/0x168 [macb] platform_remove+0x5c/0x80 ... The warning happens because the PHY is being exited while the netdev is still registered. The correct order is to unregister the netdev before shutting down the PHY and cleaning up the MDIO bus. Fix this by moving unregister_netdev() ahead of phy_exit() in macb_remove().

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 8b73fa3ae02b2401960de41b0454c0321377b203 < 7351782f2fc8ac31ced52e3d4e6fa120f819a7ab ; affected 8b73fa3ae02b2401960de41b0454c0321377b203 < 2b9719ccad38dffad7dbdd2f39896f723f9b9011 ; affected 8b73fa3ae02b2401960de41b0454c0321377b203 < ff0d3bad32108b57265e5b48f15327549af771d3 ; affected 8b73fa3ae02b2401960de41b0454c0321377b203 < 775fe690fd4a3337ad2115de2adb41b227d4dae7 ; affected 8b73fa3ae02b2401960de41b0454c0321377b203 < 01b9128c5db1b470575d07b05b67ffa3cb02ebf1
Linux · Linuxaffected 5.18 ; unaffected 0 < 5.18 ; unaffected 6.1.159 ≤ 6.1.* ; unaffected 6.6.119 ≤ 6.6.* ; unaffected 6.12.45 ≤ 6.12.* ; unaffected 6.16.5 ≤ 6.16.*

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