UnratedFix available
ksmbd: fix null pointer dereference error in generate_encryptionkey
Type: advisorySources: OSV
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix null pointer dereference error in generate_encryptionkey If client send two session setups with krb5 authenticate to ksmbd, null pointer dereference error in generate_encryptionkey could happen. sess->Preauth_HashValue is set to NULL if session is valid. So this patch skip generate encryption key if session is valid.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.15.203, 6.1.148, 6.12.42, 6.15.10, 6.16.1, 6.6.102
- CVEs
- CVE-2025-38562
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 04:28 UTC · Revision 1
Source evidence
ksmbd: fix null pointer dereference error in generate_encryptionkey
core-osv · Original sourcePublished 19 Aug 2025, 17:02 UTC
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix null pointer dereference error in generate_encryptionkey If client send two session setups with krb5 authenticate to ksmbd, null pointer dereference error in generate_encryptionkey could happen. sess->Preauth_HashValue is set to NULL if session is valid. So this patch skip generate encryption key if session is valid.
osv:CVE-2025-38562
Kernel
Fixed versions: 5.15.203, 6.1.148, 6.6.102, 6.12.42, 6.15.10, 6.16.1
Complete source record
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"url": "https://osv.dev/vulnerability/CVE-2025-38562",
"method": "structured",
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"title": "ksmbd: fix null pointer dereference error in generate_encryptionkey",
"summary": "In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix null pointer dereference error in generate_encryptionkey If client send two session setups with krb5 authenticate to ksmbd, null pointer dereference error in generate_encryptionkey could happen. sess->Preauth_HashValue is set to NULL if session is valid. So this patch skip generate encryption key if session is valid.",
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"modified": "2026-10-28T02:30:33.333326909Z",
"provider": "osv",
"references": [
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"https://www.zerodayinitiative.com/advisories/ZDI-25-917/",
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"security_relevant": true,
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"source_id": "core-osv",
"document_id": 500293,
"published_at": "2025-08-19T17:02:39.45+00:00"
}