gsd-2023-52576
Vulnerability from gsd
Modified
2024-03-03 06:01
Details
In the Linux kernel, the following vulnerability has been resolved:
x86/mm, kexec, ima: Use memblock_free_late() from ima_free_kexec_buffer()
The code calling ima_free_kexec_buffer() runs long after the memblock
allocator has already been torn down, potentially resulting in a use
after free in memblock_isolate_range().
With KASAN or KFENCE, this use after free will result in a BUG
from the idle task, and a subsequent kernel panic.
Switch ima_free_kexec_buffer() over to memblock_free_late() to avoid
that bug.
Aliases
{
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2023-52576"
],
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/mm, kexec, ima: Use memblock_free_late() from ima_free_kexec_buffer()\n\nThe code calling ima_free_kexec_buffer() runs long after the memblock\nallocator has already been torn down, potentially resulting in a use\nafter free in memblock_isolate_range().\n\nWith KASAN or KFENCE, this use after free will result in a BUG\nfrom the idle task, and a subsequent kernel panic.\n\nSwitch ima_free_kexec_buffer() over to memblock_free_late() to avoid\nthat bug.",
"id": "GSD-2023-52576",
"modified": "2024-03-03T06:01:51.581065Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
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"CVE_data_meta": {
"ASSIGNER": "cve@kernel.org",
"ID": "CVE-2023-52576",
"STATE": "PUBLIC"
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"affects": {
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"product_name": "Linux",
"version": {
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{
"version_affected": "\u003c",
"version_name": "fee3ff99bc67",
"version_value": "eef16bfdb212"
},
{
"version_value": "not down converted",
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"status": "affected",
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{
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"status": "unaffected",
"version": "0",
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{
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"status": "unaffected",
"version": "6.1.56",
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{
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"status": "unaffected",
"version": "6.5.6",
"versionType": "custom"
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{
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"status": "unaffected",
"version": "6.6",
"versionType": "original_commit_for_fix"
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"data_version": "4.0",
"description": {
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"lang": "eng",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/mm, kexec, ima: Use memblock_free_late() from ima_free_kexec_buffer()\n\nThe code calling ima_free_kexec_buffer() runs long after the memblock\nallocator has already been torn down, potentially resulting in a use\nafter free in memblock_isolate_range().\n\nWith KASAN or KFENCE, this use after free will result in a BUG\nfrom the idle task, and a subsequent kernel panic.\n\nSwitch ima_free_kexec_buffer() over to memblock_free_late() to avoid\nthat bug."
}
]
},
"generator": {
"engine": "bippy-4986f5686161"
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"problemtype": {
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"value": "n/a"
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"name": "https://git.kernel.org/stable/c/eef16bfdb212da60f5144689f2967fb25b051a2b",
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"url": "https://git.kernel.org/stable/c/eef16bfdb212da60f5144689f2967fb25b051a2b"
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{
"name": "https://git.kernel.org/stable/c/d2dfbc0e3b7a04c2d941421a958dc31c897fb204",
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"url": "https://git.kernel.org/stable/c/d2dfbc0e3b7a04c2d941421a958dc31c897fb204"
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"url": "https://git.kernel.org/stable/c/34cf99c250d5cd2530b93a57b0de31d3aaf8685b"
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/mm, kexec, ima: Use memblock_free_late() from ima_free_kexec_buffer()\n\nThe code calling ima_free_kexec_buffer() runs long after the memblock\nallocator has already been torn down, potentially resulting in a use\nafter free in memblock_isolate_range().\n\nWith KASAN or KFENCE, this use after free will result in a BUG\nfrom the idle task, and a subsequent kernel panic.\n\nSwitch ima_free_kexec_buffer() over to memblock_free_late() to avoid\nthat bug."
}
],
"id": "CVE-2023-52576",
"lastModified": "2024-03-04T13:58:23.447",
"metrics": {},
"published": "2024-03-02T22:15:49.490",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/34cf99c250d5cd2530b93a57b0de31d3aaf8685b"
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{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"url": "https://git.kernel.org/stable/c/eef16bfdb212da60f5144689f2967fb25b051a2b"
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],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Awaiting Analysis"
}
}
}
}
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.