# CVE-2022-49031: linux: In the Linux kernel, the following vulnerability has been resolved:  iio: health: afe4403: Fix oob read in afe4403_re...

CVE-2022-49031 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49031, released October 21, 2024. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-49031
- Priority: High
- CVSS: 7.1 (high)
- EPSS: 0.0024
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 21, 2024

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.0.12-1 | [DEBIAN-CVE-2022-49031](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49031.md) | Oct 21, 2024 |
| Linux | linux Debian 13.5 (trixie) | 6.0.12-1 | [DEBIAN-CVE-2022-49031](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49031.md) | Oct 21, 2024 |
| Linux | linux Debian 14 | 6.0.12-1 | [DEBIAN-CVE-2022-49031](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49031.md) | Oct 21, 2024 |

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