On Mon, Sep 10, 2018 at 10:31 AM syzbot <syzbot+c827a78260579449a...@syzkaller.appspotmail.com> wrote: > > Hello, > > syzbot found the following crash on: > > HEAD commit: f6f3bac08ff9 tools/bpf: bpftool: add net support > git tree: bpf-next > console output: https://syzkaller.appspot.com/x/log.txt?x=17940056400000 > kernel config: https://syzkaller.appspot.com/x/.config?x=8f59875069d721b6 > dashboard link: https://syzkaller.appspot.com/bug?extid=c827a78260579449ad39 > compiler: gcc (GCC) 8.0.1 20180413 (experimental) > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1611c7e1400000
This is still very actively happening. See the dashboard link for info about more crashes. > IMPORTANT: if you fix the bug, please add the following tag to the commit: > Reported-by: syzbot+c827a78260579449a...@syzkaller.appspotmail.com > > ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** > ********************************************************** > BUG: unable to handle kernel paging request at ffffc90001930002 > PGD 1da948067 P4D 1da948067 PUD 1da949067 PMD 1d49da067 PTE 0 > Oops: 0000 [#1] PREEMPT SMP KASAN > CPU: 0 PID: 12601 Comm: syz-executor3 Not tainted 4.19.0-rc2+ #93 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS > Google 01/01/2011 > RIP: 0010:bpf_prog_kallsyms_candidate kernel/bpf/core.c:472 [inline] > RIP: 0010:bpf_prog_kallsyms_add+0xbe/0x9b0 kernel/bpf/core.c:483 > Code: d0 31 c0 e8 14 68 f3 ff 49 8d 7c 24 02 48 89 f8 48 89 fa 48 c1 e8 03 > 83 e2 07 0f b6 04 18 38 d0 7f 08 84 c0 0f 85 39 07 00 00 <41> 0f b6 5c 24 > 02 31 ff 83 e3 01 89 de e8 b0 68 f3 ff 84 db 0f 84 > RSP: 0018:ffff8801bc2af9c0 EFLAGS: 00010246 > RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffffffff818c8b39 > RDX: 0000000000000002 RSI: ffffffff818b671c RDI: ffffc90001930002 > RBP: ffff8801bc2afb30 R08: ffff8801bf750100 R09: ffffed003b584732 > R10: ffffed003b584732 R11: ffff8801dac23993 R12: ffffc90001930000 > R13: ffff8801bc2afd18 R14: 0000000000000000 R15: 1ffff10037855f3d > FS: 00007fb5d21c9700(0000) GS:ffff8801dac00000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > CR2: ffffc90001930002 CR3: 00000001bcd1c000 CR4: 00000000001406f0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 > Call Trace: > bpf_prog_load+0x13d1/0x1cb0 kernel/bpf/syscall.c:1442 > __do_sys_bpf kernel/bpf/syscall.c:2371 [inline] > __se_sys_bpf kernel/bpf/syscall.c:2333 [inline] > __x64_sys_bpf+0x36c/0x510 kernel/bpf/syscall.c:2333 > do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 > entry_SYSCALL_64_after_hwframe+0x49/0xbe > RIP: 0033:0x457099 > Code: fd b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 > 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff > ff 0f 83 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 > RSP: 002b:00007fb5d21c8c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 > RAX: ffffffffffffffda RBX: 00007fb5d21c96d4 RCX: 0000000000457099 > RDX: 0000000000000048 RSI: 0000000020000000 RDI: 0000000000000005 > RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff > R13: 00000000004cb9c8 R14: 00000000004c335d R15: 0000000000000000 > Modules linked in: > Dumping ftrace buffer: > (ftrace buffer empty) > CR2: ffffc90001930002 > ---[ end trace fcb4474011e9b55c ]--- > RIP: 0010:bpf_prog_kallsyms_candidate kernel/bpf/core.c:472 [inline] > RIP: 0010:bpf_prog_kallsyms_add+0xbe/0x9b0 kernel/bpf/core.c:483 > Code: d0 31 c0 e8 14 68 f3 ff 49 8d 7c 24 02 48 89 f8 48 89 fa 48 c1 e8 03 > 83 e2 07 0f b6 04 18 38 d0 7f 08 84 c0 0f 85 39 07 00 00 <41> 0f b6 5c 24 > 02 31 ff 83 e3 01 89 de e8 b0 68 f3 ff 84 db 0f 84 > RSP: 0018:ffff8801bc2af9c0 EFLAGS: 00010246 > RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffffffff818c8b39 > RDX: 0000000000000002 RSI: ffffffff818b671c RDI: ffffc90001930002 > RBP: ffff8801bc2afb30 R08: ffff8801bf750100 R09: ffffed003b584732 > R10: ffffed003b584732 R11: ffff8801dac23993 R12: ffffc90001930000 > R13: ffff8801bc2afd18 R14: 0000000000000000 R15: 1ffff10037855f3d > FS: 00007fb5d21c9700(0000) GS:ffff8801dac00000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > CR2: ffffc90001930002 CR3: 00000001bcd1c000 CR4: 00000000001406f0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 > > > --- > This bug is generated by a bot. It may contain errors. > See https://goo.gl/tpsmEJ for more information about syzbot. > syzbot engineers can be reached at syzkal...@googlegroups.com. > > syzbot will keep track of this bug report. See: > https://goo.gl/tpsmEJ#bug-status-tracking for how to communicate with > syzbot. > syzbot can test patches for this bug, for details see: > https://goo.gl/tpsmEJ#testing-patches > > -- > You received this message because you are subscribed to the Google Groups > "syzkaller-bugs" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to syzkaller-bugs+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/syzkaller-bugs/0000000000009417ef0575802d44%40google.com. > For more options, visit https://groups.google.com/d/optout.
