btrfs: check block group lookup in remove_range_from_remap_tree()

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Add a check in remove_range_from_remap_tree() after we call
btrfs_lookup_block_group(), to check if it is NULL. This shouldn't
happen, but if it does we at least get an error rather than a segfault.

Reported-by: Chris Mason <clm@fb.com>
Link: https://lore.kernel.org/linux-btrfs/20260125125129.2245240-1-clm@meta.com/
Fixes: 979e1dc3d6 ("btrfs: handle deletions from remapped block group")
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Mark Harmstone <mark@harmstone.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Mark Harmstone 2026-02-19 14:30:59 +00:00 • committed by David Sterba

parent 7885ca40c3

commit f8db8009ea

1 changed files with 3 additions and 0 deletions

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fs/btrfs/relocation.c

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