gpio: Restrict usage of GPIO chip irq members before initialization (Linux Linux)

CVE-2022-49072
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.27 % · centile 19 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: gpio: Restrict usage of GPIO chip irq members before initialization GPIO chip irq members are exposed before they could be completely initialized and this leads to race conditions. One such issue was observed for the gc->irq.domain variable which was accessed through the I2C interface in gpiochip_to_irq() before it could be initialized by gpiochip_add_irqchip(). This resulted in Kernel NULL pointer dereference. Following are the logs for reference :- kernel: Call Trace: kernel: gpiod_to_irq+0x53/0x70 kernel: acpi_dev_gpio_irq_get_by+0x113/0x1f0 kernel: i2c_acpi_get_irq+0xc0/0xd0 kernel: i2c_device_probe+0x28a/0x2a0 kernel: really_probe+0xf2/0x460 kernel: RIP: 0010:gpiochip_to_irq+0x47/0xc0 To avoid such scenarios, restrict usage of GPIO chip irq members before they are completely initialized.

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 48057ed1840fde9239b1e000bea1a0a1f07c5e99 < 7e88a50704b0c49ad3f2d11e8b963341cf68a89f ; affected 48057ed1840fde9239b1e000bea1a0a1f07c5e99 < 0912cf021fb5749372b3782611d8b1de4986c13a ; affected 48057ed1840fde9239b1e000bea1a0a1f07c5e99 < 2c1fa3614795e2b24da1ba95de0b27b8f6ea4537 ; affected 48057ed1840fde9239b1e000bea1a0a1f07c5e99 < f8dea54f74cae8c2e4d7b2952e8fed7743a85c87 ; affected 48057ed1840fde9239b1e000bea1a0a1f07c5e99 < 5467801f1fcbdc46bc7298a84dbf3ca1ff2a7320 ; affected 44dfa46aaf7cf594ac89bc1a0c0e56c498b31269
Linux · Linuxaffected 5.3 ; unaffected 0 < 5.3 ; unaffected 5.10.111 ≤ 5.10.* ; unaffected 5.15.34 ≤ 5.15.* ; unaffected 5.16.20 ≤ 5.16.* ; unaffected 5.17.3 ≤ 5.17.*

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