Messages in this thread | | | Date | Wed, 27 Mar 2019 16:17:25 +0100 | From | Borislav Petkov <> | Subject | Re: WARNING in arch_install_hw_breakpoint |
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On Wed, Mar 27, 2019 at 02:45:24PM +0100, Dmitry Vyukov wrote: > And run this program: > https://syzkaller.appspot.com/text?tag=ReproC&x=15439f27200000
Yap, that worked in my guest, after segfaulting a lot first:
[ 101.600512][ T7333] Code: Bad RIP value. [ 101.606103][ T7337] repro[7337]: segfault at 155555585 ip 0000000155555585 sp 00007ffff7fdaf10 error 14 in repro[555555554000+1000] [ 101.606248][ T7338] repro[7338]: segfault at 25555554e ip 000000025555554e sp 00007ffff7fdaf10 error 14 in repro[555555554000+1000] [ 101.608498][ T7337] Code: Bad RIP value. [ 101.610442][ T7338] Code: Bad RIP value. [ 101.611417][ T7341] repro[7341]: segfault at 0 ip 0000000000000000 sp 00000000200002c8 error 14 [ 101.613342][ T7341] Code: Bad RIP value. [ 101.613798][ T7345] repro[7345]: segfault at 0 ip 0000000000000000 sp 00000000200002c8 error 14 [ 101.614292][ T7342] repro[7342]: segfault at 45555554e ip 000000045555554e sp 00007ffff7f98f10 error 14 in repro[555555554000+1000] [ 101.615809][ T7345] Code: Bad RIP value. [ 101.616777][ T7348] repro[7348]: segfault at 155555585 ip 0000000155555585 sp 00007ffff7fdaf10 error 14 in repro[555555554000+1000] [ 101.616802][ T7348] Code: Bad RIP value. [ 101.617733][ T7342] Code: Bad RIP value. [ 105.321676][T11024] ------------[ cut here ]------------ [ 105.324183][T11024] Can't find any breakpoint slot [ 105.324229][T11024] WARNING: CPU: 0 PID: 11024 at arch/x86/kernel/hw_breakpoint.c:121 arch_install_hw_breakpoint+0x2d1/0x3a0 ...
Thx.
-- Regards/Gruss, Boris.
Good mailing practices for 400: avoid top-posting and trim the reply.
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