ghsa-8g6r-2qgw-fhv7
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
hwmon: Handle failure to register sensor with thermal zone correctly
If an attempt is made to a sensor with a thermal zone and it fails, the call to devm_thermal_zone_of_sensor_register() may return -ENODEV. This may result in crashes similar to the following.
Unable to handle kernel NULL pointer dereference at virtual address 00000000000003cd ... Internal error: Oops: 96000021 [#1] PREEMPT SMP ... pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : mutex_lock+0x18/0x60 lr : thermal_zone_device_update+0x40/0x2e0 sp : ffff800014c4fc60 x29: ffff800014c4fc60 x28: ffff365ee3f6e000 x27: ffffdde218426790 x26: ffff365ee3f6e000 x25: 0000000000000000 x24: ffff365ee3f6e000 x23: ffffdde218426870 x22: ffff365ee3f6e000 x21: 00000000000003cd x20: ffff365ee8bf3308 x19: ffffffffffffffed x18: 0000000000000000 x17: ffffdde21842689c x16: ffffdde1cb7a0b7c x15: 0000000000000040 x14: ffffdde21a4889a0 x13: 0000000000000228 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000 x8 : 0000000001120000 x7 : 0000000000000001 x6 : 0000000000000000 x5 : 0068000878e20f07 x4 : 0000000000000000 x3 : 00000000000003cd x2 : ffff365ee3f6e000 x1 : 0000000000000000 x0 : 00000000000003cd Call trace: mutex_lock+0x18/0x60 hwmon_notify_event+0xfc/0x110 0xffffdde1cb7a0a90 0xffffdde1cb7a0b7c irq_thread_fn+0x2c/0xa0 irq_thread+0x134/0x240 kthread+0x178/0x190 ret_from_fork+0x10/0x20 Code: d503201f d503201f d2800001 aa0103e4 (c8e47c02)
Jon Hunter reports that the exact call sequence is:
hwmon_notify_event() --> hwmon_thermal_notify() --> thermal_zone_device_update() --> update_temperature() --> mutex_lock()
The hwmon core needs to handle all errors returned from calls to devm_thermal_zone_of_sensor_register(). If the call fails with -ENODEV, report that the sensor was not attached to a thermal zone but continue to register the hwmon device.
{
"affected": [],
"aliases": [
"CVE-2022-48942"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-22T04:15:18Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: Handle failure to register sensor with thermal zone correctly\n\nIf an attempt is made to a sensor with a thermal zone and it fails,\nthe call to devm_thermal_zone_of_sensor_register() may return -ENODEV.\nThis may result in crashes similar to the following.\n\nUnable to handle kernel NULL pointer dereference at virtual address 00000000000003cd\n...\nInternal error: Oops: 96000021 [#1] PREEMPT SMP\n...\npstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\npc : mutex_lock+0x18/0x60\nlr : thermal_zone_device_update+0x40/0x2e0\nsp : ffff800014c4fc60\nx29: ffff800014c4fc60 x28: ffff365ee3f6e000 x27: ffffdde218426790\nx26: ffff365ee3f6e000 x25: 0000000000000000 x24: ffff365ee3f6e000\nx23: ffffdde218426870 x22: ffff365ee3f6e000 x21: 00000000000003cd\nx20: ffff365ee8bf3308 x19: ffffffffffffffed x18: 0000000000000000\nx17: ffffdde21842689c x16: ffffdde1cb7a0b7c x15: 0000000000000040\nx14: ffffdde21a4889a0 x13: 0000000000000228 x12: 0000000000000000\nx11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000\nx8 : 0000000001120000 x7 : 0000000000000001 x6 : 0000000000000000\nx5 : 0068000878e20f07 x4 : 0000000000000000 x3 : 00000000000003cd\nx2 : ffff365ee3f6e000 x1 : 0000000000000000 x0 : 00000000000003cd\nCall trace:\n mutex_lock+0x18/0x60\n hwmon_notify_event+0xfc/0x110\n 0xffffdde1cb7a0a90\n 0xffffdde1cb7a0b7c\n irq_thread_fn+0x2c/0xa0\n irq_thread+0x134/0x240\n kthread+0x178/0x190\n ret_from_fork+0x10/0x20\nCode: d503201f d503201f d2800001 aa0103e4 (c8e47c02)\n\nJon Hunter reports that the exact call sequence is:\n\nhwmon_notify_event()\n --\u003e hwmon_thermal_notify()\n --\u003e thermal_zone_device_update()\n --\u003e update_temperature()\n --\u003e mutex_lock()\n\nThe hwmon core needs to handle all errors returned from calls\nto devm_thermal_zone_of_sensor_register(). If the call fails\nwith -ENODEV, report that the sensor was not attached to a\nthermal zone but continue to register the hwmon device.",
"id": "GHSA-8g6r-2qgw-fhv7",
"modified": "2024-08-22T18:31:21Z",
"published": "2024-08-22T06:30:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48942"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1b5f517cca36292076d9e38fa6e33a257703e62e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7efe8499cb90651c540753f4269d2d43ede14223"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8a1969e14ad93663f9a3ed02ccc2138da9956a0e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/962b2a3188bfa5388756ffbc47dfa5ff59cb8011"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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