fkie_cve-2023-53550
Vulnerability from fkie_nvd
Published
2025-10-04 16:15
Modified
2025-10-06 14:56
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: cpufreq: amd-pstate: fix global sysfs attribute type In commit 3666062b87ec ("cpufreq: amd-pstate: move to use bus_get_dev_root()") the "amd_pstate" attributes where moved from a dedicated kobject to the cpu root kobject. While the dedicated kobject expects to contain kobj_attributes the root kobject needs device_attributes. As the changed arguments are not used by the callbacks it works most of the time. However CFI will detect this issue: [ 4947.849350] CFI failure at dev_attr_show+0x24/0x60 (target: show_status+0x0/0x70; expected type: 0x8651b1de) ... [ 4947.849409] Call Trace: [ 4947.849410] <TASK> [ 4947.849411] ? __warn+0xcf/0x1c0 [ 4947.849414] ? dev_attr_show+0x24/0x60 [ 4947.849415] ? report_cfi_failure+0x4e/0x60 [ 4947.849417] ? handle_cfi_failure+0x14c/0x1d0 [ 4947.849419] ? __cfi_show_status+0x10/0x10 [ 4947.849420] ? handle_bug+0x4f/0x90 [ 4947.849421] ? exc_invalid_op+0x1a/0x60 [ 4947.849422] ? asm_exc_invalid_op+0x1a/0x20 [ 4947.849424] ? __cfi_show_status+0x10/0x10 [ 4947.849425] ? dev_attr_show+0x24/0x60 [ 4947.849426] sysfs_kf_seq_show+0xa6/0x110 [ 4947.849433] seq_read_iter+0x16c/0x4b0 [ 4947.849436] vfs_read+0x272/0x2d0 [ 4947.849438] ksys_read+0x72/0xe0 [ 4947.849439] do_syscall_64+0x76/0xb0 [ 4947.849440] ? do_user_addr_fault+0x252/0x650 [ 4947.849442] ? exc_page_fault+0x7a/0x1b0 [ 4947.849443] entry_SYSCALL_64_after_hwframe+0x72/0xdc
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5e720f8c8c9d959283c3908bbf32a91a01a86547
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ddcfc33a20380508f7fea18e1c330abe17ed4fc0
Impacted products
Vendor Product Version


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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncpufreq: amd-pstate: fix global sysfs attribute type\n\nIn commit 3666062b87ec (\"cpufreq: amd-pstate: move to use bus_get_dev_root()\")\nthe \"amd_pstate\" attributes where moved from a dedicated kobject to the\ncpu root kobject.\n\nWhile the dedicated kobject expects to contain kobj_attributes the root\nkobject needs device_attributes.\n\nAs the changed arguments are not used by the callbacks it works most of\nthe time.\nHowever CFI will detect this issue:\n\n[ 4947.849350] CFI failure at dev_attr_show+0x24/0x60 (target: show_status+0x0/0x70; expected type: 0x8651b1de)\n...\n[ 4947.849409] Call Trace:\n[ 4947.849410]  \u003cTASK\u003e\n[ 4947.849411]  ? __warn+0xcf/0x1c0\n[ 4947.849414]  ? dev_attr_show+0x24/0x60\n[ 4947.849415]  ? report_cfi_failure+0x4e/0x60\n[ 4947.849417]  ? handle_cfi_failure+0x14c/0x1d0\n[ 4947.849419]  ? __cfi_show_status+0x10/0x10\n[ 4947.849420]  ? handle_bug+0x4f/0x90\n[ 4947.849421]  ? exc_invalid_op+0x1a/0x60\n[ 4947.849422]  ? asm_exc_invalid_op+0x1a/0x20\n[ 4947.849424]  ? __cfi_show_status+0x10/0x10\n[ 4947.849425]  ? dev_attr_show+0x24/0x60\n[ 4947.849426]  sysfs_kf_seq_show+0xa6/0x110\n[ 4947.849433]  seq_read_iter+0x16c/0x4b0\n[ 4947.849436]  vfs_read+0x272/0x2d0\n[ 4947.849438]  ksys_read+0x72/0xe0\n[ 4947.849439]  do_syscall_64+0x76/0xb0\n[ 4947.849440]  ? do_user_addr_fault+0x252/0x650\n[ 4947.849442]  ? exc_page_fault+0x7a/0x1b0\n[ 4947.849443]  entry_SYSCALL_64_after_hwframe+0x72/0xdc"
    }
  ],
  "id": "CVE-2023-53550",
  "lastModified": "2025-10-06T14:56:21.733",
  "metrics": {},
  "published": "2025-10-04T16:15:50.260",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5e720f8c8c9d959283c3908bbf32a91a01a86547"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ddcfc33a20380508f7fea18e1c330abe17ed4fc0"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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