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authorJens Axboe <axboe@kernel.dk>2019-09-24 02:43:39 -0600
committerJens Axboe <axboe@kernel.dk>2019-09-24 02:43:39 -0600
commit3982ec03ab0c125d01b62876f5139b2c07082c7a (patch)
tree58ce88ce1d5788cef94f89477b68ca4c9ee36b48
parent3f64668f8587e11fe585874c37103ef602a3cd07 (diff)
downloadfio-3982ec03ab0c125d01b62876f5139b2c07082c7a.tar.gz
fio-3982ec03ab0c125d01b62876f5139b2c07082c7a.tar.bz2
verify: check that the block size is big enough
Fixes: https://github.com/axboe/fio/issues/822 Signed-off-by: Jens Axboe <axboe@kernel.dk>
-rw-r--r--verify.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/verify.c b/verify.c
index 48ba051d..37d2be8d 100644
--- a/verify.c
+++ b/verify.c
@@ -1191,6 +1191,10 @@ static void populate_hdr(struct thread_data *td, struct io_u *io_u,
fill_hdr(td, io_u, hdr, header_num, header_len, io_u->rand_seed);
+ if (header_len <= hdr_size(td, hdr)) {
+ td_verror(td, EINVAL, "Blocksize too small");
+ return;
+ }
data_len = header_len - hdr_size(td, hdr);
data = p + hdr_size(td, hdr);