[LTP] [PATCH] syscalls/setsockopt09: Add another linux git

Petr Vorel pvorel@suse.cz
Fri Mar 4 09:01:47 CET 2022


> Hi Petr
> > Hi Xu,

> >> On centos7.9ga, I still hit another crash problem because of use-after-free in
> >> prb_retire_rx_blk_timer_expired(). Since we free it when timer expired, so this
> >> case will crash after we print TPASS info.

> > Reviewed-by: Petr Vorel<pvorel@suse.cz>

> > LGTM.
> > I tested two old kernels, the one with patch survives, the other got reboot.

> > BTW funny enough the affected system manages to print "TPASS: Nothing bad
> > happened, probably" before reboot :).
> Yes, it crash when timer expired, so it will print TPASS before reboot. 
> Also, I try sleep 10ms, but it still print TPASS and reboot after serval 
> seconds.

> I have wrote it in my commit message, so this should  be friendly for 
> user to know this situation.

Sure, I didn't expect we would be able to fix this (I'm *not* voting for sleep
10+ s). It can just be a bit confusing when you read test logs if the framework
does not clearly show that system got rebooted (I saw reset in dmesg but didn't
believe it's caused by this test output due TPASS. Lesson learned :)).

Kind regards,
Petr

> Best Regards
> Yang Xu

> > Kind regards,
> > Petr


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