GHSA-76P7-PW4C-R85F
Vulnerability from github – Published: 2024-10-21 21:30 – Updated: 2024-10-24 18:30In the Linux kernel, the following vulnerability has been resolved:
iio: health: afe4404: Fix oob read in afe4404_[read|write]_raw
KASAN report out-of-bounds read as follows:
BUG: KASAN: global-out-of-bounds in afe4404_read_raw+0x2ce/0x380 Read of size 4 at addr ffffffffc00e4658 by task cat/278
Call Trace: afe4404_read_raw iio_read_channel_info dev_attr_show
The buggy address belongs to the variable: afe4404_channel_leds+0x18/0xffffffffffffe9c0
This issue can be reproduce by singe command:
$ cat /sys/bus/i2c/devices/0-0058/iio\:device0/in_intensity6_raw
The array size of afe4404_channel_leds and afe4404_channel_offdacs are less than channels, so access with chan->address cause OOB read in afe4404_[read|write]_raw. Fix it by moving access before use them.
{
"affected": [],
"aliases": [
"CVE-2022-49032"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-21T20:15:13Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: health: afe4404: Fix oob read in afe4404_[read|write]_raw\n\nKASAN report out-of-bounds read as follows:\n\nBUG: KASAN: global-out-of-bounds in afe4404_read_raw+0x2ce/0x380\nRead of size 4 at addr ffffffffc00e4658 by task cat/278\n\nCall Trace:\n afe4404_read_raw\n iio_read_channel_info\n dev_attr_show\n\nThe buggy address belongs to the variable:\n afe4404_channel_leds+0x18/0xffffffffffffe9c0\n\nThis issue can be reproduce by singe command:\n\n $ cat /sys/bus/i2c/devices/0-0058/iio\\:device0/in_intensity6_raw\n\nThe array size of afe4404_channel_leds and afe4404_channel_offdacs\nare less than channels, so access with chan-\u003eaddress cause OOB read\nin afe4404_[read|write]_raw. Fix it by moving access before use them.",
"id": "GHSA-76p7-pw4c-r85f",
"modified": "2024-10-24T18:30:42Z",
"published": "2024-10-21T21:30:53Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49032"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/113c08030a89aaf406f8a1d4549d758a67c2afba"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3f566b626029ca8598d48e5074e56bb37399ca1b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5eb114f55b37dbc0487aa9c1913b81bb7837f1c4"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/68de7da092f38395dde523f2e5db26eba6c23e28"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d45d9f45e7b1365fd0d9bf14680d6d5082a590d1"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f5575041ec15310bdc50c42b8b22118cc900226e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f7419fc42afc035f6b29ce713e17dcd2000c833f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/fc92d9e3de0b2d30a3ccc08048a5fad533e4672b"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
}
]
}
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