Informazioni sul CVE-2022-49072
gpio: Restrict usage of GPIO chip irq members before initialization
CWE ID: N/A
Base Score (CVSS): N/A
CVE: CVE-2022-49072
Descrizione: 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.
Vettore di attacco
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Dettaglio del Vettore
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Riferimenti esterni
- https://git.kernel.org/stable/c/7e88a50704b0c49ad3f2d11e8b963341cf68a89f
- https://git.kernel.org/stable/c/0912cf021fb5749372b3782611d8b1de4986c13a
- https://git.kernel.org/stable/c/2c1fa3614795e2b24da1ba95de0b27b8f6ea4537
- https://git.kernel.org/stable/c/f8dea54f74cae8c2e4d7b2952e8fed7743a85c87
- https://git.kernel.org/stable/c/5467801f1fcbdc46bc7298a84dbf3ca1ff2a7320
Prodotti interessati
- Linux – Linux
- Linux – Linux
Relazioni con altri prodotti
Produttore:Linux
Prodotto: Linux
Anno: 2022
CWE:
CVSS: 0.0