Al, can you take this through your tree?
Thanks,
Jeff
Jeff Moyer <jmoyer@xxxxxxxxxx> writes:
> "zhangyi (F)" <yi.zhang@xxxxxxxxxx> writes:
>
>> io_[p]getevents syscall should return -EINVAL if if timeout is out of
>> range, add this validity check.
>>
>> Signed-off-by: zhangyi (F) <yi.zhang@xxxxxxxxxx>
>> ---
>> fs/aio.c | 11 +++++++++--
>> 1 file changed, 9 insertions(+), 2 deletions(-)
>>
>> diff --git a/fs/aio.c b/fs/aio.c
>> index 01e0fb9..dd967a0 100644
>> --- a/fs/aio.c
>> +++ b/fs/aio.c
>> @@ -2031,10 +2031,17 @@ static long do_io_getevents(aio_context_t ctx_id,
>> struct io_event __user *events,
>> struct timespec64 *ts)
>> {
>> - ktime_t until = ts ? timespec64_to_ktime(*ts) : KTIME_MAX;
>> - struct kioctx *ioctx = lookup_ioctx(ctx_id);
>> + ktime_t until = KTIME_MAX;
>> + struct kioctx *ioctx = NULL;
>> long ret = -EINVAL;
>>
>> + if (ts) {
>> + if (!timespec64_valid(ts))
>> + return ret;
>> + until = timespec64_to_ktime(*ts);
>> + }
>> +
>> + ioctx = lookup_ioctx(ctx_id);
>> if (likely(ioctx)) {
>> if (likely(min_nr <= nr && min_nr >= 0))
>> ret = read_events(ioctx, min_nr, nr, events, until);
>
> Reviewed-by: Jeff Moyer <jmoyer@xxxxxxxxxx>
>
> The previous suggestion[1] of fixing the helpers never materialized, so
> let's just get this fixed, already.
>
> -Jeff
>
> [1] https://marc.info/?l=linux-fsdevel&m=152209450618587&w=2
>
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