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{
"id": "CVE-2022-49031",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2024-10-21T20:15:13.807",
"lastModified": "2024-10-23T15:12:34.673",
"vulnStatus": "Awaiting Analysis",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: health: afe4403: Fix oob read in afe4403_read_raw\n\nKASAN report out-of-bounds read as follows:\n\nBUG: KASAN: global-out-of-bounds in afe4403_read_raw+0x42e/0x4c0\nRead of size 4 at addr ffffffffc02ac638 by task cat/279\n\nCall Trace:\n afe4403_read_raw\n iio_read_channel_info\n dev_attr_show\n\nThe buggy address belongs to the variable:\n afe4403_channel_leds+0x18/0xffffffffffffe9e0\n\nThis issue can be reproduced by singe command:\n\n $ cat /sys/bus/spi/devices/spi0.0/iio\\:device0/in_intensity6_raw\n\nThe array size of afe4403_channel_leds is less than channels, so access\nwith chan->address cause OOB read in afe4403_read_raw. Fix it by moving\naccess before use it."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: iio: health: afe4403: Se corrige la lectura oob en el informe de KASAN afe4403_read_raw que indica que la lectura est\u00e1 fuera de los l\u00edmites de la siguiente manera: ERROR: KASAN: global-out-of-bounds en afe4403_read_raw+0x42e/0x4c0 Lectura de tama\u00f1o 4 en la direcci\u00f3n ffffffffc02ac638 por la tarea cat/279 Seguimiento de llamadas: afe4403_read_raw iio_read_channel_info dev_attr_show La direcci\u00f3n con errores pertenece a la variable: afe4403_channel_leds+0x18/0xffffffffffffe9e0 Este problema se puede reproducir con un solo comando: $ cat /sys/bus/spi/devices/spi0.0/iio\\:device0/in_intensity6_raw El tama\u00f1o de la matriz de afe4403_channel_leds es menor que channels, por lo que el acceso con chan->address provoca una lectura OOB en afe4403_read_raw. Solucione el problema moviendo el acceso antes de usarlo."
}
],
"metrics": {},
"references": [
{
"url": "https://git.kernel.org/stable/c/06c6ce21cec77dfa860d57e7a006000a57812efb",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/2d6a437064ffbe685c67ddb16dfc0946074c6c3f",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/58143c1ed5882c138a3cd2251a336fc8755f23d9",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/726fa3e4ab97dcff1c745bdc4fb137366cb8d3df",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/98afcb5f3be645d330c74c5194ba0d80e26f95e0",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/b1756af172fb80a3edc143772d49e166ec691b6c",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/c9268df36818ee4eaaaeadc80009b442a5ca69c9",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/e7e76a77aabef8989cbc0a8417af1aa040620867",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
]
}