IT

Tracker / CVE-2022-49031

CVE-2022-49031

High 7.1

In the Linux kernel, the following vulnerability has been resolved: iio: health: afe4403: Fix oob read in afe4403_read_raw KASAN report out-of-bounds read as follows: BUG: KASAN: global-out-of-bounds in afe4403_read_raw+0x42e/0x4c0 Read of size 4 at addr ffffffffc02ac638 by task cat/279 Call Trace: afe4403_read_raw iio_read_channel_info dev_attr_show The buggy address belongs to the variable: afe4403_channel_leds+0x18/0xffffffffffffe9e0 This issue can be reproduced by singe command: $ cat /sys/bus/spi/devices/spi0.0/iio\:device0/in_intensity6_raw The array size of afe4403_channel_leds is less than channels, so access with chan->address cause OOB read in afe4403_read_raw. Fix it by moving access before use it.

Affected products and versions

linux linux_kernel
linux linux_kernel · 4.10 → 4.14.301
linux linux_kernel · 4.15 → 4.19.268
linux linux_kernel · 4.20 → 5.4.226
linux linux_kernel · 4.8 → 4.9.335
linux linux_kernel · 5.11 → 5.15.82
linux linux_kernel · 5.16 → 6.0.12
linux linux_kernel · 5.5 → 5.10.158

Analysis

This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.

References