CVE-2022-49031
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.24%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public 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.
- CVSS 3.1
- 7.1 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- EPSS
- 0.24% probability · 16th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/06c6ce21cec77dfa860d57e7a006000a57812efbPatch
- https://git.kernel.org/stable/c/2d6a437064ffbe685c67ddb16dfc0946074c6c3fPatch
- https://git.kernel.org/stable/c/58143c1ed5882c138a3cd2251a336fc8755f23d9Patch
- https://git.kernel.org/stable/c/726fa3e4ab97dcff1c745bdc4fb137366cb8d3dfPatch
- https://git.kernel.org/stable/c/98afcb5f3be645d330c74c5194ba0d80e26f95e0Patch
- https://git.kernel.org/stable/c/b1756af172fb80a3edc143772d49e166ec691b6cPatch
- https://git.kernel.org/stable/c/c9268df36818ee4eaaaeadc80009b442a5ca69c9Patch
- https://git.kernel.org/stable/c/e7e76a77aabef8989cbc0a8417af1aa040620867Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.