* [BUG] staging: lustre: Possible null function pointer in ctx_refresh_timeout()
@ 2018-07-26 14:02 Jia-Ju Bai
2018-07-26 14:12 ` Greg KH
0 siblings, 1 reply; 3+ messages in thread
From: Jia-Ju Bai @ 2018-07-26 14:02 UTC (permalink / raw)
To: oleg.drokin, andreas.dilger, jsimmons, paf, namit
Cc: lustre-devel, devel, linux-kernel
In Linux-4.16, drivers/staging/lustre/lustre/ptlrp/sec.c,
557. int ctx_refresh_timeout(...) {
.......
573. req->rq_cli_ctx->cc_ops->force_die(req->rq_cli_ctx, 0);
......
575. }
For x86 kernel configuration, there is no assignment of the function
pointer ".force_die" in the kernel code.
So calling the function pointer in line 573 may cause a null pointer
dereference.
Best wishes,
Jia-Ju Bai
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [BUG] staging: lustre: Possible null function pointer in ctx_refresh_timeout()
2018-07-26 14:02 [BUG] staging: lustre: Possible null function pointer in ctx_refresh_timeout() Jia-Ju Bai
@ 2018-07-26 14:12 ` Greg KH
2018-07-26 14:18 ` Jia-Ju Bai
0 siblings, 1 reply; 3+ messages in thread
From: Greg KH @ 2018-07-26 14:12 UTC (permalink / raw)
To: Jia-Ju Bai
Cc: oleg.drokin, andreas.dilger, jsimmons, paf, namit, devel,
linux-kernel, lustre-devel
On Thu, Jul 26, 2018 at 10:02:22PM +0800, Jia-Ju Bai wrote:
> In Linux-4.16, drivers/staging/lustre/lustre/ptlrp/sec.c,
Please look at the 4.18-rc6 release for this file.
In short, nothing to worry about anymore :)
thanks,
greg k-h
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [BUG] staging: lustre: Possible null function pointer in ctx_refresh_timeout()
2018-07-26 14:12 ` Greg KH
@ 2018-07-26 14:18 ` Jia-Ju Bai
0 siblings, 0 replies; 3+ messages in thread
From: Jia-Ju Bai @ 2018-07-26 14:18 UTC (permalink / raw)
To: Greg KH
Cc: oleg.drokin, andreas.dilger, jsimmons, paf, namit, devel,
linux-kernel, lustre-devel
On 2018/7/26 22:12, Greg KH wrote:
> On Thu, Jul 26, 2018 at 10:02:22PM +0800, Jia-Ju Bai wrote:
>> In Linux-4.16, drivers/staging/lustre/lustre/ptlrp/sec.c,
> Please look at the 4.18-rc6 release for this file.
>
> In short, nothing to worry about anymore :)
Looks good now :)
Best wishes,
Jia-Ju Bai
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2018-07-26 14:18 UTC | newest]
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2018-07-26 14:02 [BUG] staging: lustre: Possible null function pointer in ctx_refresh_timeout() Jia-Ju Bai
2018-07-26 14:12 ` Greg KH
2018-07-26 14:18 ` Jia-Ju Bai
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