serial: 8250_port: Check IRQ data before use (CVE-2023-52567)

Résumé

serial: 8250_port: Check IRQ data before use

Description d'origine

La description telle que publiée par la source (souvent en anglais).

In the Linux kernel, the following vulnerability has been resolved:

serial: 8250_port: Check IRQ data before use

In case the leaf driver wants to use IRQ polling (irq = 0) and
IIR register shows that an interrupt happened in the 8250 hardware
the IRQ data can be NULL. In such a case we need to skip the wake
event as we came to this path from the timer interrupt and quite
likely system is already awake.

Without this fix we have got an Oops:

serial8250: ttyS0 at I/O 0x3f8 (irq = 0, base_baud = 115200) is a 16550A
...
BUG: kernel NULL pointer dereference, address: 0000000000000010
RIP: 0010:serial8250_handle_irq+0x7c/0x240
Call Trace:
 ? serial8250_handle_irq+0x7c/0x240
 ? __pfx_serial8250_timeout+0x10/0x10

Source: OSV.dev (Open Source Vulnerabilities) NVD OSV

Paquets affectés

Linux Kernel

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.14.327"}]},{"type":"ECOSYSTEM","events":[{"introduced":"4.15.0"},{"fixed":"4.19.296"}]},{"type":"ECOSYSTEM","events":[{"introduced":"4.20.0"},{"fixed":"5.4.258"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.5.0"},{"fixed":"5.10.198"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.134"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.56"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.5.6"}]}]

État des correctifs par distribution

Paquets corrigés publiés par chaque distribution pour cette CVE

Debian DEBIAN-CVE-2023-52567 linux Corrigé dans: 5.10.205-1
Ubuntu UBUNTU-CVE-2023-52567 linux-hwe-edge

Résumé

Description d'origine

Paquets affectés

État des correctifs par distribution

Références