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CVE-2026-89640 cifs: fix loff_t underflow in cifs_remap_file_range() when len == 0

🗓️ 11 Sep 2026 19:45:33Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 8 Views

loff_t underflow in Linux kernel CIFS cifs_remap_file_range when len is zero corrupts request.

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15 Sep 2026 03:48Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.17.1
8