cve-2021-47456
Vulnerability from cvelistv5
Published
2024-05-22 06:19
Modified
2024-08-04 05:39
Severity
8.4 (High) - cvssV3_1 - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
can: peak_pci: peak_pci_remove(): fix UAF
References
SourceURLTags
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0e5afdc2315b0737edcf55bede4ee1640d2d464d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1248582e47a9f7ce0ecd156c39fc61f8b6aa3699
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1c616528ba4aeb1125a06b407572ab7b56acae38
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/28f28e4bc3a5e0051faa963f10b778ab38c1db69
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/34914971bb3244db4ce2be44e9438a9b30c56250
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/447d44cd2f67a20b596ede3ca3cd67086dfd9ca9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/949fe9b35570361bc6ee2652f89a0561b26eec98
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/adbda14730aacce41c0d3596415aa39ad63eafd9
Impacted products
VendorProduct
LinuxLinux
LinuxLinux
Show details on NVD website

To clipboard 

{
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                "description": "CWE-467 Use of sizeof() on a Pointer Type",
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          "value": "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"
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        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47456",
    "datePublished": "2024-05-22T06:19:45.363Z",
    "dateReserved": "2024-05-21T14:58:30.833Z",
    "dateUpdated": "2024-08-04T05:39:59.411Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
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  }
}


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