CVE-2022-49031

iio: health: afe4403: Fix oob read in afe4403_read_raw

HIGH

7.1

CVSS Score

Published: October 21, 2024 at 08:06 PM UTC

Updated: June 17, 2026 at 05:16 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

HIGH7.1

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

4.10 ≤ v < 4.14.3014.15 ≤ v < 4.19.2684.20 ≤ v < 5.4.2264.8 ≤ v < 4.14.3014.8 ≤ v < 4.19.2684.8 ≤ v < 4.9.3354.8 ≤ v < 5.10.1584.8 ≤ v < 5.15.824.8 ≤ v < 5.4.2264.8 ≤ v < 6.0.124.8 ≤ v < 6.15.11 ≤ v < 5.15.825.16 ≤ v < 6.0.125.5 ≤ v < 5.10.1586.1 rc1 6.1 rc2 6.1 rc3 6.1 rc4 6.1 rc5 6.1 rc6b36e8257641a043764c62240316610c81e36376c

Vendor states this is fixed in 06c6ce21cec77dfa860d57e7a006000a57812efb (fixed)

Vendor states this is fixed in 2d6a437064ffbe685c67ddb16dfc0946074c6c3f (fixed)

Vendor states this is fixed in 58143c1ed5882c138a3cd2251a336fc8755f23d9 (fixed)

Vendor states this is fixed in 726fa3e4ab97dcff1c745bdc4fb137366cb8d3df (fixed)

Vendor states this is fixed in 98afcb5f3be645d330c74c5194ba0d80e26f95e0 (fixed)

Vendor states this is fixed in b1756af172fb80a3edc143772d49e166ec691b6c (fixed)

Vendor states this is fixed in c9268df36818ee4eaaaeadc80009b442a5ca69c9 (fixed)

Vendor states this is fixed in e7e76a77aabef8989cbc0a8417af1aa040620867 (fixed)

Vendor states this is fixed in 4.14.301 (unaffected)

Vendor states this is fixed in 4.19.268 (unaffected)

Vendor states this is fixed in 4.8 (unaffected)

Vendor states this is fixed in 4.9.335 (unaffected)