* Re: kernel BUG at mm/slab.c:LINE! (2) [not found] ` <010001647fcab0b9-1154d4da-94f8-404e-8898-b8acdf366592-000000@email.amazonses.com> @ 2018-07-09 16:16 ` Dmitry Vyukov 2018-07-09 16:30 ` Daniel Borkmann 0 siblings, 1 reply; 2+ messages in thread From: Dmitry Vyukov @ 2018-07-09 16:16 UTC (permalink / raw) To: Christopher Lameter, Alexei Starovoitov, Daniel Borkmann, netdev Cc: syzbot, Kees Cook, LKML, Linux-MM, syzkaller-bugs On Mon, Jul 9, 2018 at 6:05 PM, Christopher Lameter <cl@linux.com> wrote: > On Sun, 8 Jul 2018, syzbot wrote: > >> kernel BUG at mm/slab.c:4421! > > Classic location that indicates memory corruption. Can we rerun this with > CONFIG_SLAB_DEBUG? Alternatively use SLUB debugging for better debugging > without rebuilding. This runs with KASAN which is way more powerful than slab/slub debug. There two other recent crashes in bpf_test_finish which has more info: https://syzkaller.appspot.com/bug?id=f831c88feddf5f4de09b846bbe53e5b8c06e5c02 https://syzkaller.appspot.com/bug?id=059cee5623ce519359e7440ba6d0d6af8b82694e ^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: kernel BUG at mm/slab.c:LINE! (2) 2018-07-09 16:16 ` kernel BUG at mm/slab.c:LINE! (2) Dmitry Vyukov @ 2018-07-09 16:30 ` Daniel Borkmann 0 siblings, 0 replies; 2+ messages in thread From: Daniel Borkmann @ 2018-07-09 16:30 UTC (permalink / raw) To: Dmitry Vyukov, Christopher Lameter, Alexei Starovoitov, netdev Cc: syzbot, Kees Cook, LKML, Linux-MM, syzkaller-bugs On 07/09/2018 06:16 PM, Dmitry Vyukov wrote: > On Mon, Jul 9, 2018 at 6:05 PM, Christopher Lameter <cl@linux.com> wrote: >> On Sun, 8 Jul 2018, syzbot wrote: >> >>> kernel BUG at mm/slab.c:4421! >> >> Classic location that indicates memory corruption. Can we rerun this with >> CONFIG_SLAB_DEBUG? Alternatively use SLUB debugging for better debugging >> without rebuilding. > > This runs with KASAN which is way more powerful than slab/slub debug. > > There two other recent crashes in bpf_test_finish which has more info: > > https://syzkaller.appspot.com/bug?id=f831c88feddf5f4de09b846bbe53e5b8c06e5c02 > https://syzkaller.appspot.com/bug?id=059cee5623ce519359e7440ba6d0d6af8b82694e Fyi, looking into the two today as well. ^ permalink raw reply [flat|nested] 2+ messages in thread
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[not found] ` <010001647fcab0b9-1154d4da-94f8-404e-8898-b8acdf366592-000000@email.amazonses.com>
2018-07-09 16:16 ` kernel BUG at mm/slab.c:LINE! (2) Dmitry Vyukov
2018-07-09 16:30 ` Daniel Borkmann
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