Messages in this thread | | | From | Aleksandr Nogikh <> | Date | Thu, 23 Nov 2023 10:32:26 +0100 | Subject | Re: [syzbot] [kernel?] general protection fault in joydev_connect |
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On Thu, Nov 23, 2023 at 9:55 AM gregkh@linuxfoundation.org <gregkh@linuxfoundation.org> wrote: > > On Wed, Nov 22, 2023 at 07:55:50PM +0800, xingwei lee wrote: > > Hi. I have reproduced this bug with repro.txt and repro.c below: > > > > repro.txt > > r0 = openat$uinput(0xffffffffffffff9c, &(0x7f0000000500), 0x802, 0x0) > > ioctl$UI_DEV_SETUP(r0, 0x405c5503, &(0x7f0000000080)={{0x0, 0xffff, > > 0x3}, 'syz0\x00'}) > > ioctl$UI_DEV_CREATE(r0, 0x5501) (fail_nth: 51) > > You are using fault injection, which, by it's very name, causes faults :)
But those injected failures (that do not break the kernel, but just emulate an error returned from a function that should be expected to sometimes return an error) still should not lead to general protection fault panics, shouldn't they?
-- Aleksandr
> > Can you reproduce it without causing faults in the kernel? And if so, > can you create a patch to fix this? > > thanks, > > greg k-h >
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