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| author | Yu Kuai <yukuai3@huawei.com> | 2023-01-17 08:08:02 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-01-29 23:18:34 +0100 |
| commit | 7b7c5ae4402f810612e84c4ded7a302a61eeba59 (patch) | |
| tree | 1741f20b6808f7a6a95cd0c8fb813fce3fb12084 /block | |
| parent | blk-iocost: avoid 64-bit division in ioc_timer_fn (diff) | |
| download | linux-7b7c5ae4402f810612e84c4ded7a302a61eeba59.tar.xz linux-7b7c5ae4402f810612e84c4ded7a302a61eeba59.zip | |
blk-iocost: check return value of match_u64()
This patch fixs that the return value of match_u64() from ioc_qos_write()
is not checked,
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Acked-by: Tejun Heo <tj@kernel.org>
Link: https://lore.kernel.org/r/20230117070806.3857142-2-yukuai1@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
| -rw-r--r-- | block/blk-iocost.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/block/blk-iocost.c b/block/blk-iocost.c index b691b6bb498f..3b99c6a7a104 100644 --- a/block/blk-iocost.c +++ b/block/blk-iocost.c @@ -3214,7 +3214,8 @@ static ssize_t ioc_qos_write(struct kernfs_open_file *of, char *input, switch (match_token(p, qos_ctrl_tokens, args)) { case QOS_ENABLE: - match_u64(&args[0], &v); + if (match_u64(&args[0], &v)) + goto einval; enable = v; continue; case QOS_CTRL: |