CVEvulnerability
CVE-2025-22037
7.5 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2025-04-16
- Last modified
- 2026-10-08
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-476
Description
In the Linux kernel, the following vulnerability has been resolved:
ksmbd: fix null pointer dereference in alloc_preauth_hash()
The Client send malformed smb2 negotiate request. ksmbd return error
response. Subsequently, the client can send smb2 session setup even
thought conn->preauth_info is not allocated.
This patch add KSMBD_SESS_NEED_SETUP status of connection to ignore
session setup request if smb2 negotiate phase is not complete.
Affected configurations
• linux linux kernel (>= 6.6 < 6.6.107)
• linux linux kernel (>= 6.12 < 6.12.23)
• linux linux kernel (>= 6.13 < 6.13.11)
• linux linux kernel (>= 6.14 < 6.14.2)
Related
Weakness · CWE (1)
- CWE-476 NULL Pointer Dereference weakness
References
- https://git.kernel.org/stable/c/8f216b33a5e1b3489c073b1ea1b3d7cb63c8dc4d Patch
- https://git.kernel.org/stable/c/b8eb243e670ecf30e91524dd12f7260dac07d335 Patch
- https://git.kernel.org/stable/c/c8b5b7c5da7d0c31c9b7190b4a7bba5281fc4780 Patch
- https://git.kernel.org/stable/c/ca8bed31edf728a662ef9d6f39f50e7a7dc2b5ad Patch
- https://git.kernel.org/stable/c/cce57cd8c5dead24127cf2308fdd60fcad2d6ba6 Patch
- https://www.zerodayinitiative.com/advisories/ZDI-25-310/ Third Party Advisory