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| author | Gustavo A. R. Silva <gustavo@embeddedor.com> | 2018-12-22 01:39:52 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-12-22 14:45:35 -0700 |
| commit | d52c499b476b2f82eebecdd5fc4be8318a4e8ef7 (patch) | |
| tree | 008a2e96639d548172271d76bf7d9a8a343d69ed | |
| parent | 93f87a74fde682e0b53c90ea25e744003d294ae2 (diff) | |
| download | linux-d52c499b476b2f82eebecdd5fc4be8318a4e8ef7.tar.gz linux-d52c499b476b2f82eebecdd5fc4be8318a4e8ef7.tar.bz2 linux-d52c499b476b2f82eebecdd5fc4be8318a4e8ef7.zip | |
lightnvm: pblk: fix use-after-free bug
Remove one of the calls to function bio_put(), so *bio* is only
freed once.
Notice that bio is being dereferenced in bio_put(), hence leading to
a use-after-free bug once *bio* has already been freed.
Addresses-Coverity-ID: 1475952 ("Use after free")
Fixes: 55d8ec35398e ("lightnvm: pblk: support packed metadata")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | drivers/lightnvm/pblk-recovery.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/lightnvm/pblk-recovery.c b/drivers/lightnvm/pblk-recovery.c index 3fcf062d752c..5ee20da7bdb3 100644 --- a/drivers/lightnvm/pblk-recovery.c +++ b/drivers/lightnvm/pblk-recovery.c @@ -418,7 +418,6 @@ retry_rq: if (ret) { pblk_err(pblk, "I/O submission failed: %d\n", ret); bio_put(bio); - bio_put(bio); return ret; } |