On Wed, Feb 21, 2018 at 1:59 AM, syzbot <syzbot+8288e492017b059ff014@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote: > Hello, > > syzbot hit the following crash on upstream commit > 1a2a7d3ee659e477e0768ac3fc7579794f89071b (Fri Feb 16 17:11:30 2018 +0000) > Merge tag 'sound-4.16-rc2' of > git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound > > So far this crash happened 2 times on upstream. > C reproducer is attached. > syzkaller reproducer is attached. > Raw console output is attached. > compiler: gcc (GCC) 7.1.1 20170620 > .config is attached. This is already fixed: #syz fix: netfilter: IDLETIMER: be syzkaller friendly > IMPORTANT: if you fix the bug, please add the following tag to the commit: > Reported-by: syzbot+8288e492017b059ff014@xxxxxxxxxxxxxxxxxxxxxxxxx > It will help syzbot understand when the bug is fixed. See footer for > details. > If you forward the report, please keep this part and the footer. > > x_tables: ip6_tables: TCPMSS target: only valid for protocol 6 > x_tables: ip6_tables: TCPMSS target: only valid for protocol 6 > x_tables: ip6_tables: TCPMSS target: only valid for protocol 6 > ------------[ cut here ]------------ > ODEBUG: activate not available (active state 0) object type: work_struct > hint: 0x8 > WARNING: CPU: 0 PID: 4178 at lib/debugobjects.c:291 > debug_print_object+0x166/0x220 lib/debugobjects.c:288 > Kernel panic - not syncing: panic_on_warn set ... > > CPU: 0 PID: 4178 Comm: syzkaller885166 Not tainted 4.16.0-rc1+ #315 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS > Google 01/01/2011 > Call Trace: > <IRQ> > __dump_stack lib/dump_stack.c:17 [inline] > dump_stack+0x194/0x257 lib/dump_stack.c:53 > panic+0x1e4/0x41c kernel/panic.c:183 > __warn+0x1dc/0x200 kernel/panic.c:547 > report_bug+0x211/0x2d0 lib/bug.c:184 > fixup_bug.part.11+0x37/0x80 arch/x86/kernel/traps.c:178 > fixup_bug arch/x86/kernel/traps.c:247 [inline] > do_error_trap+0x2d7/0x3e0 arch/x86/kernel/traps.c:296 > do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:315 > invalid_op+0x58/0x80 arch/x86/entry/entry_64.S:957 > RIP: 0010:debug_print_object+0x166/0x220 lib/debugobjects.c:288 > RSP: 0018:ffff8801db407400 EFLAGS: 00010082 > RAX: dffffc0000000008 RBX: 0000000000000005 RCX: ffffffff815abdbe > RDX: 0000000000000100 RSI: 1ffff1003b680e30 RDI: 1ffff1003b680e05 > RBP: ffff8801db407440 R08: 0000000000000000 R09: 1ffff1003b680dd7 > R10: ffff8801db407300 R11: 0000000000000002 R12: 0000000000000001 > R13: ffffffff86b14d80 R14: ffffffff86007d60 R15: ffffffff8147ac00 > debug_object_activate+0x390/0x730 lib/debugobjects.c:475 > debug_work_activate kernel/workqueue.c:493 [inline] > __queue_work+0x163/0x1230 kernel/workqueue.c:1382 > queue_work_on+0x16a/0x1c0 kernel/workqueue.c:1488 > queue_work include/linux/workqueue.h:488 [inline] > schedule_work include/linux/workqueue.h:546 [inline] > idletimer_tg_expired+0x44/0x60 net/netfilter/xt_IDLETIMER.c:116 > call_timer_fn+0x228/0x820 kernel/time/timer.c:1326 > expire_timers kernel/time/timer.c:1363 [inline] > __run_timers+0x7ee/0xb70 kernel/time/timer.c:1666 > run_timer_softirq+0x4c/0x70 kernel/time/timer.c:1692 > __do_softirq+0x2d7/0xb85 kernel/softirq.c:285 > invoke_softirq kernel/softirq.c:365 [inline] > irq_exit+0x1cc/0x200 kernel/softirq.c:405 > exiting_irq arch/x86/include/asm/apic.h:541 [inline] > smp_apic_timer_interrupt+0x16b/0x700 arch/x86/kernel/apic/apic.c:1052 > apic_timer_interrupt+0x8e/0xa0 arch/x86/entry/entry_64.S:796 > </IRQ> > RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:777 > [inline] > RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 > [inline] > RIP: 0010:_raw_spin_unlock_irqrestore+0x5e/0xba > kernel/locking/spinlock.c:184 > RSP: 0018:ffff8801b1a7f3c8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff12 > RAX: dffffc0000000000 RBX: 0000000000000282 RCX: 0000000000000006 > RDX: 1ffffffff0d592d5 RSI: 1ffff10035eb5d5b RDI: 0000000000000282 > RBP: ffff8801b1a7f3d8 R08: 1ffff1003634fe47 R09: 0000000000000000 > R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff86cfcbe0 > R13: 0000000000000282 R14: ffffed003634fe8b R15: ffff8801b33f25e8 > fill_pool lib/debugobjects.c:119 [inline] > __debug_object_init+0xa7a/0x1040 lib/debugobjects.c:339 > debug_object_init+0x17/0x20 lib/debugobjects.c:391 > __init_work+0x2b/0x60 kernel/workqueue.c:506 > idletimer_tg_create net/netfilter/xt_IDLETIMER.c:152 [inline] > idletimer_tg_checkentry+0x691/0xb00 net/netfilter/xt_IDLETIMER.c:213 > xt_check_target+0x22c/0x7d0 net/netfilter/x_tables.c:850 > check_target net/ipv6/netfilter/ip6_tables.c:533 [inline] > find_check_entry.isra.7+0x935/0xcf0 net/ipv6/netfilter/ip6_tables.c:575 > translate_table+0xf52/0x1690 net/ipv6/netfilter/ip6_tables.c:744 > do_replace net/ipv6/netfilter/ip6_tables.c:1160 [inline] > do_ip6t_set_ctl+0x370/0x5f0 net/ipv6/netfilter/ip6_tables.c:1686 > nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] > nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:115 > ipv6_setsockopt+0x10b/0x130 net/ipv6/ipv6_sockglue.c:927 > udpv6_setsockopt+0x45/0x80 net/ipv6/udp.c:1422 > sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2975 > SYSC_setsockopt net/socket.c:1849 [inline] > SyS_setsockopt+0x189/0x360 net/socket.c:1828 > do_syscall_64+0x280/0x940 arch/x86/entry/common.c:287 > entry_SYSCALL_64_after_hwframe+0x42/0xb7 > RIP: 0033:0x4468a9 > RSP: 002b:00007fe91311cda8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 > RAX: ffffffffffffffda RBX: 00000000006dbc24 RCX: 00000000004468a9 > RDX: 0000000000000040 RSI: 0000000000000029 RDI: 00000000000002fb > RBP: 0000000000000000 R08: 0000000000000460 R09: 0000000000000000 > R10: 0000000020103ba0 R11: 0000000000000246 R12: 00000000006dbc20 > R13: 4292e4cc04c17464 R14: 372e72b5132b6474 R15: 0000000000000001 > Dumping ftrace buffer: > (ftrace buffer empty) > Kernel Offset: disabled > Rebooting in 86400 seconds.. > > > --- > This bug is generated by a dumb bot. It may contain errors. > See https://goo.gl/tpsmEJ for details. > Direct all questions to syzkaller@xxxxxxxxxxxxxxxx. > > syzbot will keep track of this bug report. > If you forgot to add the Reported-by tag, once the fix for this bug is > merged > into any tree, please reply to this email with: > #syz fix: exact-commit-title > If you want to test a patch for this bug, please reply with: > #syz test: git://repo/address.git branch > and provide the patch inline or as an attachment. > To mark this as a duplicate of another syzbot report, please reply with: > #syz dup: exact-subject-of-another-report > If it's a one-off invalid bug report, please reply with: > #syz invalid > Note: if the crash happens again, it will cause creation of a new bug > report. > Note: all commands must start from beginning of the line in the email body. > > -- > 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+unsubscribe@xxxxxxxxxxxxxxxx. > To view this discussion on the web visit > https://groups.google.com/d/msgid/syzkaller-bugs/94eb2c0564b0dbde550565ae6eb0%40google.com. > For more options, visit https://groups.google.com/d/optout. -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
