Commit 2ba24864 authored by Kent Overstreet's avatar Kent Overstreet
Browse files

bcachefs: Fix stack oob in __bch2_encrypt_bio() 



Reported-by: default avatar <syzbot+fff6b0fb00259873576a@syzkaller.appspotmail.com>
Signed-off-by: default avatarKent Overstreet <kent.overstreet@linux.dev>
parent 70dd062e

fs/bcachefs/checksum.c

+6 −2
Original line number Diff line number Diff line
@@ -352,10 +352,14 @@ int __bch2_encrypt_bio(struct bch_fs *c, unsigned type, 
		bytes += bv.bv_len;

	}



	if (sg != sgl) {

		sg_mark_end(sg - 1);

		return do_encrypt_sg(c->chacha20, nonce, sgl, bytes);

	}



	return ret;

}



struct bch_csum bch2_checksum_merge(unsigned type, struct bch_csum a,

				    struct bch_csum b, size_t b_len)

{