CVE-2025-37827

CVE-2025-37827 affects the Linux kernel’s Btrfs zoned mechanism when a RAID1 block-group has a write-pointer mismatch between disks. Root cause: a NULL pointer dereference in __btrfs_add_free_space_zoned() triggered by converting the metadata profile from DUP to RAID1 on two disks, leading to an ...