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btrfs: fix off-by-one end offset check in report_setget_bounds()

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The addressable range with an extent buffer goes from byte 0 to byte
eb->len - 1, so if a byte address matches eb->len, it's already beyond
the addressable range and we should log that it's bad start address
and not end address.

Fixes: 234fdd2815 ("btrfs: remove redundant check in up check_setget_bounds")
Reviewed-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Daniel Vacek <neelx@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Filipe Manana 2026-09-30 15:37:00 +01:00 committed by David Sterba
parent 22bdddf40e
commit 08f750d9f8
1 changed files with 1 additions and 1 deletions
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2
fs/btrfs/accessors.c
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@ -16,7 +16,7 @@ static void __cold report_setget_bounds(const struct extent_buffer *eb,
btrfs_warn(eb->fs_info,
"bad eb member %s: ptr 0x%lx start %llu member offset %lu size %d",
(member_offset > eb->len ? "start" : "end"),
(member_offset >= eb->len ? "start" : "end"),
(unsigned long)ptr, eb->start, member_offset, size);
}