CVE-2023-52877

usb: typec: tcpm: Fix NULL pointer dereference in tcpm_pd_svdm()

MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.22 % · centile 13 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: usb: typec: tcpm: Fix NULL pointer dereference in tcpm_pd_svdm() It is possible that typec_register_partner() returns ERR_PTR on failure. When port->partner is an error, a NULL pointer dereference may occur as shown below. [91222.095236][ T319] typec port0: failed to register partner (-17) ... [91225.061491][ T319] Unable to handle kernel NULL pointer dereference at virtual address 000000000000039f [91225.274642][ T319] pc : tcpm_pd_data_request+0x310/0x13fc [91225.274646][ T319] lr : tcpm_pd_data_request+0x298/0x13fc [91225.308067][ T319] Call trace: [91225.308070][ T319] tcpm_pd_data_request+0x310/0x13fc [91225.308073][ T319] tcpm_pd_rx_handler+0x100/0x9e8 [91225.355900][ T319] kthread_worker_fn+0x178/0x58c [91225.355902][ T319] kthread+0x150/0x200 [91225.355905][ T319] ret_from_fork+0x10/0x30 Add a check for port->partner to avoid dereferencing a NULL pointer.

Faiblesses (CWE)

  • CWE-476 — Déréférencement de pointeur nul

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 5e1d4c49fbc86dab6e005d66f066bd53c9479cde < e5f53a68a596e04df3fde3099273435a30b6fdac ; affected 5e1d4c49fbc86dab6e005d66f066bd53c9479cde < e7a802447c491903aa7cb45967aa2a934a4e63fc ; affected 5e1d4c49fbc86dab6e005d66f066bd53c9479cde < 9ee038590d808a95d16adf92818dcd4752273c08 ; affected 5e1d4c49fbc86dab6e005d66f066bd53c9479cde < b37a168c0137156042a0ca9626651b5a789e822b ; affected 5e1d4c49fbc86dab6e005d66f066bd53c9479cde < 4987daf86c152ff882d51572d154ad12e4ff3a4b
Linux · Linuxaffected 5.12 ; unaffected 0 < 5.12 ; unaffected 5.15.138 ≤ 5.15.* ; unaffected 6.1.62 ≤ 6.1.* ; unaffected 6.5.11 ≤ 6.5.* ; unaffected 6.6.1 ≤ 6.6.*

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