eth: alx: take rtnl_lock on resume (Linux Linux)

CVE-2022-50498
MEDIUM 5.5

En bref

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

Description

In the Linux kernel, the following vulnerability has been resolved: eth: alx: take rtnl_lock on resume Zbynek reports that alx trips an rtnl assertion on resume: RTNL: assertion failed at net/core/dev.c (2891) RIP: 0010:netif_set_real_num_tx_queues+0x1ac/0x1c0 Call Trace: <TASK> __alx_open+0x230/0x570 [alx] alx_resume+0x54/0x80 [alx] ? pci_legacy_resume+0x80/0x80 dpm_run_callback+0x4a/0x150 device_resume+0x8b/0x190 async_resume+0x19/0x30 async_run_entry_fn+0x30/0x130 process_one_work+0x1e5/0x3b0 indeed the driver does not hold rtnl_lock during its internal close and re-open functions during suspend/resume. Note that this is not a huge bug as the driver implements its own locking, and does not implement changing the number of queues, but we need to silence the splat.

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 4a5fe57e775188be96359a1934501be45fe5f705 < 6f1991a940b90753b34570f093a21dba366e8cc0 ; affected 4a5fe57e775188be96359a1934501be45fe5f705 < a845a0c4bdece2c0073ecea2fca7c4d5f0550f78 ; affected 4a5fe57e775188be96359a1934501be45fe5f705 < c0323c0fd07804d5874699e93f935cda0d989c67 ; affected 4a5fe57e775188be96359a1934501be45fe5f705 < 6ad1c94e1e7e374d88f0cfd77936dddb8339aaba
Linux · Linuxaffected 5.14 ; unaffected 0 < 5.14 ; unaffected 5.15.75 ≤ 5.15.* ; unaffected 5.19.17 ≤ 5.19.* ; unaffected 6.0.3 ≤ 6.0.* ; unaffected 6.1 ≤ *

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