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CVE-2026-68442 btrfs: don't propagate EXTENT_FLAG_LOGGING to split extent maps

🗓️ 12 Aug 2026 00:07:31Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 7 Views

Btrfs extent map split retains EXTENT_FLAG_LOGGING, causing use-after-free on freed extent map. kernel: btrfs_extent_map_split_logging_flag_uaf

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14 Aug 2026 04:03Current
5.4Medium risk
Vulners AI Score5.4
CVSS 3.17.8
7