linux — security advisory
In the Linux kernel, the following vulnerability has been resolved: mm/ksm: fix race with VMA iteration and mm_struct teardown exit_mmap() will tear down the VMAs and maple tree with the mmap_lock held in write mode. Ensure that the maple tree is still valid by checking ksm_test_exit() after taking the mmap_lock in read mode, but before the for_each_vma() iterator dereferences a destroyed maple tree. Since the maple tree is destroyed, the flags telling lockdep to check an external lock has been cleared. Skip the for_each_vma() iterator to avoid dereferencing a maple tree without the external lock flag, which would create a lockdep warning.
- Products
- linux
- Affected versions
- Not specified
- Fixed versions
- 6.1.25-1
- CVEs
- CVE-2023-53614
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 16:10 UTC · Revision 1
Source evidence
In the Linux kernel, the following vulnerability has been resolved: mm/ksm: fix race with VMA iteration and mm_struct teardown exit_mmap() will tear down the VMAs and maple tree with the mmap_lock held in write mode. Ensure that the maple tree is still valid by checking ksm_test_exit() after taking the mmap_lock in read mode, but before the for_each_vma() iterator dereferences a destroyed maple tree. Since the maple tree is destroyed, the flags telling lockdep to check an external lock has been cleared. Skip the for_each_vma() iterator to avoid dereferencing a maple tree without the external lock flag, which would create a lockdep warning.
osv:DEBIAN-CVE-2023-53614
linux
Fixed versions: 6.1.25-1
linux
Fixed versions: 6.1.25-1
linux
Fixed versions: 6.1.25-1
Complete source record
{
"id": "2a2dec88239240f47264b44cb388c120b12b616622f7a6895672fe8edffa5df0",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2023-53614",
"method": "structured",
"payload": {
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"title": "DEBIAN-CVE-2023-53614",
"summary": "In the Linux kernel, the following vulnerability has been resolved: mm/ksm: fix race with VMA iteration and mm_struct teardown exit_mmap() will tear down the VMAs and maple tree with the mmap_lock held in write mode. Ensure that the maple tree is still valid by checking ksm_test_exit() after taking the mmap_lock in read mode, but before the for_each_vma() iterator dereferences a destroyed maple tree. Since the maple tree is destroyed, the flags telling lockdep to check an external lock has been cleared. Skip the for_each_vma() iterator to avoid dereferencing a maple tree without the external lock flag, which would create a lockdep warning.",
"evidence": "osv:DEBIAN-CVE-2023-53614",
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],
"modified": "2026-10-26T18:02:48.547982095Z",
"provider": "osv",
"upstream": [
"CVE-2023-53614"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2023-53614"
]
},
"related_cves": [
{
"value": "CVE-2023-53614",
"evidence": "/upstream"
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],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 456884,
"published_at": "2025-10-04T16:15:58.227+00:00"
}