ghsa-44c5-jqqx-f38c
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
hwmon: (coretemp) Check for null before removing sysfs attrs
If coretemp_add_core() gets an error then pdata->core_data[indx] is already NULL and has been kfreed. Don't pass that to sysfs_remove_group() as that will crash in sysfs_remove_group().
[Shortened for readability]
[91854.020159] sysfs: cannot create duplicate filename '/devices/platform/coretemp.0/hwmon/hwmon2/temp20_label'
Fix this by checking for NULL first.
{
"affected": [],
"aliases": [
"CVE-2022-49010"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-21T20:15:12Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (coretemp) Check for null before removing sysfs attrs\n\nIf coretemp_add_core() gets an error then pdata-\u003ecore_data[indx]\nis already NULL and has been kfreed. Don\u0027t pass that to\nsysfs_remove_group() as that will crash in sysfs_remove_group().\n\n[Shortened for readability]\n[91854.020159] sysfs: cannot create duplicate filename \u0027/devices/platform/coretemp.0/hwmon/hwmon2/temp20_label\u0027\n\u003ccpu offline\u003e\n[91855.126115] BUG: kernel NULL pointer dereference, address: 0000000000000188\n[91855.165103] #PF: supervisor read access in kernel mode\n[91855.194506] #PF: error_code(0x0000) - not-present page\n[91855.224445] PGD 0 P4D 0\n[91855.238508] Oops: 0000 [#1] PREEMPT SMP PTI\n...\n[91855.342716] RIP: 0010:sysfs_remove_group+0xc/0x80\n...\n[91855.796571] Call Trace:\n[91855.810524] coretemp_cpu_offline+0x12b/0x1dd [coretemp]\n[91855.841738] ? coretemp_cpu_online+0x180/0x180 [coretemp]\n[91855.871107] cpuhp_invoke_callback+0x105/0x4b0\n[91855.893432] cpuhp_thread_fun+0x8e/0x150\n...\n\nFix this by checking for NULL first.",
"id": "GHSA-44c5-jqqx-f38c",
"modified": "2024-10-24T21:31:02Z",
"published": "2024-10-21T21:30:52Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49010"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/070d5ea4a0592a37ad96ce7f7b6b024f90bb009f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/280110db1a7d62ad635b103bafc3ae96e8bef75c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7692700ac818866d138a8de555130a6e70e6ac16"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/89eecabe6a47403237f45aafd7d24f93cb973653"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a89ff5f5cc64b9fe7a992cf56988fd36f56ca82a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ae6c8b6e5d5628df1c475c0a8fca1465e205c95b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f06e0cd01eab954bd5f2190c9faa79bb5357e05b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/fb503d077ff7b43913503eaf72995d1239028b99"
}
],
"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 |
|---|
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