Re: KMSAN: uninit-value in get_term_name

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, Oct 28, 2019 at 02:13:20PM +0100, Takashi Iwai wrote:
> On Mon, 28 Oct 2019 11:32:07 +0100,
> syzbot wrote:
> > 
> > Uninit was stored to memory at:
> >  kmsan_save_stack_with_flags mm/kmsan/kmsan.c:151 [inline]
> >  kmsan_internal_chain_origin+0xbd/0x180 mm/kmsan/kmsan.c:319
> >  __msan_chain_origin+0x6b/0xd0 mm/kmsan/kmsan_instr.c:179
> >  parse_term_proc_unit+0x73d/0x7e0 sound/usb/mixer.c:896
> >  __check_input_term+0x13ef/0x2360 sound/usb/mixer.c:989
> 
> So this comes from the invalid descriptor for a processing unit, and
> it's very likely the same issue as already spotted -- the validator up
> to 5.3-rc4 had a bug that passed the invalid descriptor falsely.
> This should have been covered by 5.3-rc5, commit ba8bf0967a15 ("ALSA:
> usb-audio: Fix copy&paste error in the validator").

SHould we be backporting the validator to any older kernels as well?

thanks,

greg k-h
_______________________________________________
Alsa-devel mailing list
Alsa-devel@xxxxxxxxxxxxxxxx
https://mailman.alsa-project.org/mailman/listinfo/alsa-devel



[Index of Archives]     [ALSA User]     [Linux Audio Users]     [Pulse Audio]     [Kernel Archive]     [Asterisk PBX]     [Photo Sharing]     [Linux Sound]     [Video 4 Linux]     [Gimp]     [Yosemite News]

  Powered by Linux