usb: cdns3 fix use-after-free at workaround 2 (Linux Linux)

CVE-2022-50034
HIGH 7.8

En bref

Source
NVD
EPSS
EPSS 0.20 % · centile 10 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: usb: cdns3 fix use-after-free at workaround 2 BUG: KFENCE: use-after-free read in __list_del_entry_valid+0x10/0xac cdns3_wa2_remove_old_request() { ... kfree(priv_req->request.buf); cdns3_gadget_ep_free_request(&priv_ep->endpoint, &priv_req->request); list_del_init(&priv_req->list); ^^^ use after free ... } cdns3_gadget_ep_free_request() free the space pointed by priv_req, but priv_req is used in the following list_del_init(). This patch move list_del_init() before cdns3_gadget_ep_free_request().

Faiblesses (CWE)

  • CWE-416 — Utilisation après libération

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 6bbf87a131edd39040974f3843ff97e89310ebde < e65d9b7147d7be3504893ca7dfb85286bda83d40 ; affected 6bbf87a131edd39040974f3843ff97e89310ebde < 6d7ac60098b206d0472475b666cb09d556bec03d ; affected 6bbf87a131edd39040974f3843ff97e89310ebde < c3c1dbad3a2db32ecf371c97f2058491b8ba0f9a ; affected 6bbf87a131edd39040974f3843ff97e89310ebde < 6fd50446e7c9a98b4bcf96815f5c9602a16ea472 ; affected 6bbf87a131edd39040974f3843ff97e89310ebde < 7d602f30149a117eea260208b1661bc404c21dfd
Linux · Linuxaffected 5.4 ; unaffected 0 < 5.4 ; unaffected 5.4.211 ≤ 5.4.* ; unaffected 5.10.138 ≤ 5.10.* ; unaffected 5.15.63 ≤ 5.15.* ; unaffected 5.19.4 ≤ 5.19.*

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