ghsa-45hj-5gpj-93h8
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
can: peak_pci: peak_pci_remove(): fix UAF
When remove the module peek_pci, referencing 'chan' again after releasing 'dev' will cause UAF.
Fix this by releasing 'dev' later.
The following log reveals it:
[ 35.961814 ] BUG: KASAN: use-after-free in peak_pci_remove+0x16f/0x270 [peak_pci] [ 35.963414 ] Read of size 8 at addr ffff888136998ee8 by task modprobe/5537 [ 35.965513 ] Call Trace: [ 35.965718 ] dump_stack_lvl+0xa8/0xd1 [ 35.966028 ] print_address_description+0x87/0x3b0 [ 35.966420 ] kasan_report+0x172/0x1c0 [ 35.966725 ] ? peak_pci_remove+0x16f/0x270 [peak_pci] [ 35.967137 ] ? trace_irq_enable_rcuidle+0x10/0x170 [ 35.967529 ] ? peak_pci_remove+0x16f/0x270 [peak_pci] [ 35.967945 ] __asan_report_load8_noabort+0x14/0x20 [ 35.968346 ] peak_pci_remove+0x16f/0x270 [peak_pci] [ 35.968752 ] pci_device_remove+0xa9/0x250
{
"affected": [],
"aliases": [
"CVE-2021-47456"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-22T07:15:10Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: peak_pci: peak_pci_remove(): fix UAF\n\nWhen remove the module peek_pci, referencing \u0027chan\u0027 again after\nreleasing \u0027dev\u0027 will cause UAF.\n\nFix this by releasing \u0027dev\u0027 later.\n\nThe following log reveals it:\n\n[ 35.961814 ] BUG: KASAN: use-after-free in peak_pci_remove+0x16f/0x270 [peak_pci]\n[ 35.963414 ] Read of size 8 at addr ffff888136998ee8 by task modprobe/5537\n[ 35.965513 ] Call Trace:\n[ 35.965718 ] dump_stack_lvl+0xa8/0xd1\n[ 35.966028 ] print_address_description+0x87/0x3b0\n[ 35.966420 ] kasan_report+0x172/0x1c0\n[ 35.966725 ] ? peak_pci_remove+0x16f/0x270 [peak_pci]\n[ 35.967137 ] ? trace_irq_enable_rcuidle+0x10/0x170\n[ 35.967529 ] ? peak_pci_remove+0x16f/0x270 [peak_pci]\n[ 35.967945 ] __asan_report_load8_noabort+0x14/0x20\n[ 35.968346 ] peak_pci_remove+0x16f/0x270 [peak_pci]\n[ 35.968752 ] pci_device_remove+0xa9/0x250",
"id": "GHSA-45hj-5gpj-93h8",
"modified": "2024-07-03T18:43:06Z",
"published": "2024-05-22T09:31:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47456"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0e5afdc2315b0737edcf55bede4ee1640d2d464d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1248582e47a9f7ce0ecd156c39fc61f8b6aa3699"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1c616528ba4aeb1125a06b407572ab7b56acae38"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/28f28e4bc3a5e0051faa963f10b778ab38c1db69"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/34914971bb3244db4ce2be44e9438a9b30c56250"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/447d44cd2f67a20b596ede3ca3cd67086dfd9ca9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/949fe9b35570361bc6ee2652f89a0561b26eec98"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/adbda14730aacce41c0d3596415aa39ad63eafd9"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}