From: Sultan Alsawaf <sultan@xxxxxxxxxxxxxxx>
dm_crypt_integrity_io_alloc() allocates space for an integrity payload but
doesn't free it in the error path, leaking memory. Add a bio_integrity_free()
invocation upon error to fix the memory leak.
Signed-off-by: Sultan Alsawaf <sultan@xxxxxxxxxxxxxxx>
---
drivers/md/dm-crypt.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index dd538e6b2..f731e1fe0 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -939,8 +939,10 @@ static int dm_crypt_integrity_io_alloc(struct dm_crypt_io *io, struct bio *bio)
ret = bio_integrity_add_page(bio, virt_to_page(io->integrity_metadata),
tag_len, offset_in_page(io->integrity_metadata));
- if (unlikely(ret != tag_len))
+ if (unlikely(ret != tag_len)) {
+ bio_integrity_free(bio);
return -ENOMEM;
+ }
return 0;
}
--
2.20.1
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