ghsa-m48w-fr7p-r6p2
Vulnerability from github
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] [ 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
{
"affected": [],
"aliases": [
"CVE-2023-53550"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-04T16:15:50Z",
"severity": null
},
"details": "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": "GHSA-m48w-fr7p-r6p2",
"modified": "2025-10-04T18:31:15Z",
"published": "2025-10-04T18:31:14Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53550"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5e720f8c8c9d959283c3908bbf32a91a01a86547"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ddcfc33a20380508f7fea18e1c330abe17ed4fc0"
}
],
"schema_version": "1.4.0",
"severity": []
}
Sightings
| Author | Source | Type | Date |
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