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btrfs: raid56: fix memory leak of btrfs_raid_bio::stripe_uptodate_bitmap

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We allocate the bitmap but we never free it in free_raid_bio_pointers().
Fix this by adding a bitmap_free() call against the stripe_uptodate_bitmap
of a raid bio.

Fixes: 1810350b04 ("btrfs: raid56: move sector_ptr::uptodate into a dedicated bitmap")
Reported-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/linux-btrfs/20260126045315.GA31641@lst.de/
Reviewed-by: Qu Wenruo <wqu@suse.com>
Tested-by: Christoph Hellwig <hch@lst.de>
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
2026-01-30 17:06:45 +00:00
committed by David Sterba
parent 5341c98450
commit a56a70f8d2
1 changed files with 1 additions and 0 deletions
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1
fs/btrfs/raid56.c
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@@ -150,6 +150,7 @@ static void scrub_rbio_work_locked(struct work_struct *work);
static void free_raid_bio_pointers(struct btrfs_raid_bio *rbio)
{
bitmap_free(rbio->error_bitmap);
bitmap_free(rbio->stripe_uptodate_bitmap);
kfree(rbio->stripe_pages);
kfree(rbio->bio_paddrs);
kfree(rbio->stripe_paddrs);