netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'. watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.5:10008] Modules linked in: irq event stamp: 2662225 hardirqs last enabled at (2662224): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (2662225): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (2636356): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (2636359): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (2636359): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 0 PID: 10008 Comm: syz-executor.5 Not tainted 4.19.197-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x50 kernel/kcov.c:100 Code: e8 31 cf 35 00 e9 ab fe ff ff 4c 89 ef e8 24 cf 35 00 e9 23 fe ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 34 24 <65> 48 8b 04 25 80 df 01 00 65 8b 15 0c 5f 9f 7e 81 e2 00 01 1f 00 RSP: 0018:ffff8880ba006de8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000102 RBX: 0000000000000001 RCX: ffffffff816d0c3a RDX: 0000000000000001 RSI: ffffffff816d0d2e RDI: 0000000000000005 RBP: 00000000004665e9 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000005 R11: 0000000000074071 R12: 0000000000000000 R13: 0000000000000000 R14: ffff8880b5b98900 R15: 00000000000000e8 FS: 00007fdf44710700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000003322848 CR3: 0000000009e6d000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bpf_prog_kallsyms_find include/linux/rcupdate.h:628 [inline] is_bpf_text_address+0x18e/0x1b0 kernel/bpf/core.c:546 kernel_text_address kernel/extable.c:152 [inline] kernel_text_address+0xbd/0xf0 kernel/extable.c:122 __kernel_text_address+0x9/0x30 kernel/extable.c:107 unwind_get_return_address arch/x86/kernel/unwind_orc.c:297 [inline] unwind_get_return_address+0x51/0x90 arch/x86/kernel/unwind_orc.c:292 __save_stack_trace+0xaf/0x190 arch/x86/kernel/stacktrace.c:45 save_stack mm/kasan/kasan.c:448 [inline] set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:553 kmem_cache_alloc_node+0x146/0x3b0 mm/slab.c:3649 __alloc_skb+0x71/0x560 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:995 [inline] sctp_packet_transmit+0x246/0x3660 net/sctp/output.c:584 sctp_outq_flush_transports+0x19d/0x340 net/sctp/outqueue.c:1166 sctp_outq_flush net/sctp/outqueue.c:1214 [inline] sctp_outq_uncork+0x185/0x200 net/sctp/outqueue.c:777 sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1815 [inline] sctp_side_effects net/sctp/sm_sideeffect.c:1199 [inline] sctp_do_sm+0x72a/0x5110 net/sctp/sm_sideeffect.c:1170 sctp_assoc_bh_rcv+0x345/0x650 net/sctp/associola.c:1073 sctp_inq_push+0x1da/0x270 net/sctp/inqueue.c:95 sctp_rcv+0x1625/0x3270 net/sctp/input.c:268 sctp6_rcv+0x12/0x30 net/sctp/ipv6.c:1067 ip6_input_finish+0x46a/0x17a0 net/ipv6/ip6_input.c:385 NF_HOOK include/linux/netfilter.h:289 [inline] ip6_input+0xcf/0x3c0 net/ipv6/ip6_input.c:428 dst_input include/net/dst.h:461 [inline] ip6_rcv_finish+0x1d9/0x2f0 net/ipv6/ip6_input.c:76 NF_HOOK include/linux/netfilter.h:289 [inline] ipv6_rcv+0xf2/0x3f0 net/ipv6/ip6_input.c:273 __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:4954 __netif_receive_skb+0x27/0x1c0 net/core/dev.c:5066 process_backlog+0x241/0x700 net/core/dev.c:5848 napi_poll net/core/dev.c:6272 [inline] net_rx_action+0x4ac/0xfb0 net/core/dev.c:6338 __do_softirq+0x265/0x980 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x215/0x260 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:PageHuge+0x0/0x160 mm/hugetlb.c:1373 Code: 42 04 00 eb bd e8 d0 42 04 00 eb 94 e8 c9 42 04 00 e9 68 ff ff ff e8 bf 42 04 00 e9 3b ff ff ff e8 b5 42 04 00 e9 0b ff ff ff <41> 54 55 53 48 89 fb e8 94 73 ce ff 48 89 da 48 b8 00 00 00 00 00 RSP: 0018:ffff8880a57f76f8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81518a13 RDX: 1ffffd400054710f RSI: 0000000000000004 RDI: ffffea0002a38840 RBP: ffffea0002a38840 R08: 0000000000000000 R09: ffffed1017404552 R10: ffff8880ba022a93 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: ffffea0002a38840 R15: 00007fdf46b14000 page_remove_file_rmap+0x3e/0xa30 mm/rmap.c:1215 page_remove_rmap+0xe5/0x120 mm/rmap.c:1297 zap_pte_range mm/memory.c:1350 [inline] zap_pmd_range mm/memory.c:1463 [inline] zap_pud_range mm/memory.c:1492 [inline] zap_p4d_range mm/memory.c:1513 [inline] unmap_page_range+0x147d/0x2c50 mm/memory.c:1534 unmap_single_vma+0x198/0x300 mm/memory.c:1579 unmap_vmas+0xa9/0x180 mm/memory.c:1609 exit_mmap+0x2b9/0x530 mm/mmap.c:3093 __mmput kernel/fork.c:1015 [inline] mmput+0x14e/0x4a0 kernel/fork.c:1036 exit_mm kernel/exit.c:549 [inline] do_exit+0xaec/0x2be0 kernel/exit.c:857 do_group_exit+0x125/0x310 kernel/exit.c:967 get_signal+0x3f2/0x1f70 kernel/signal.c:2589 do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:799 exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665e9 Code: Bad RIP value. RSP: 002b:00007fdf44710188 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: fffffffffffffe00 RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 000000000000006b RSI: 0000000000000084 RDI: 0000000000000005 RBP: 00000000004bfcc4 R08: 000000000000001c R09: 0000000000000000 R10: 000000002055bfe4 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffcc6f3689f R14: 00007fdf44710300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 10005 Comm: syz-executor.3 Not tainted 4.19.197-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:rdtsc arch/x86/include/asm/msr.h:207 [inline] RIP: 0010:rdtsc_ordered arch/x86/include/asm/msr.h:232 [inline] RIP: 0010:pvclock_clocksource_read+0xc0/0x520 arch/x86/kernel/pvclock.c:87 Code: c1 e8 03 49 01 ed 4c 8d 5b 1b 48 01 e8 4c 8d 7b 10 48 89 44 24 20 4c 8d 53 17 4c 8d 73 1d 83 e2 fe 89 54 24 04 0f ae e8 0f 31 <48> c1 e2 20 48 8b 74 24 08 4c 89 c9 48 09 d0 41 0f b6 55 00 48 c1 RSP: 0018:ffff8880ba107ba0 EFLAGS: 00000006 RAX: 00000000e7469a35 RBX: ffffffff8c662040 RCX: 0000000000000001 RDX: 0000000000000268 RSI: ffffffff8154904f RDI: ffffffff8c66205c RBP: dffffc0000000000 R08: ffffffff8c662058 R09: ffffffff8c66204f R10: ffffffff8c662057 R11: ffffffff8c66205b R12: ffffffff8c662043 R13: fffffbfff18cc409 R14: ffffffff8c66205d R15: ffffffff8c662050 FS: 00007f77cf634700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c0155b86c0 CR3: 00000000a8423000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kvm_clock_read arch/x86/kernel/kvmclock.c:103 [inline] kvm_clock_get_cycles+0x14/0x30 arch/x86/kernel/kvmclock.c:110 tk_clock_read kernel/time/timekeeping.c:172 [inline] timekeeping_get_delta kernel/time/timekeeping.c:266 [inline] timekeeping_get_ns kernel/time/timekeeping.c:373 [inline] ktime_get+0x188/0x2f0 kernel/time/timekeeping.c:758 clockevents_program_event+0x141/0x350 kernel/time/clockevents.c:336 tick_program_event+0xac/0x140 kernel/time/tick-oneshot.c:48 hrtimer_interrupt+0x40a/0x9e0 kernel/time/hrtimer.c:1552 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1071 [inline] smp_apic_timer_interrupt+0x10c/0x550 arch/x86/kernel/apic/apic.c:1096 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline] RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0xa3/0xe0 kernel/locking/spinlock.c:184 Code: 48 c7 c0 48 82 f1 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 2f 48 83 3d 4c 00 d9 01 00 74 15 48 89 df 57 9d <0f> 1f 44 00 00 eb b2 e8 0b bb e7 f8 eb c0 0f 0b 0f 0b 48 c7 c7 48 RSP: 0018:ffff8880ba107e88 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff13e3049 RBX: 0000000000000286 RCX: 1ffff1100b53ad1d RDX: dffffc0000000000 RSI: ffff88805a9d68c8 RDI: 0000000000000286 RBP: ffff8880ba124c80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: ffff88804c9fcf20 R15: dffffc0000000000 hrtimer_start include/linux/hrtimer.h:398 [inline] tasklet_hrtimer_start include/linux/interrupt.h:641 [inline] mac80211_hwsim_beacon+0x14b/0x190 drivers/net/wireless/mac80211_hwsim.c:1627 __tasklet_hrtimer_trampoline+0x29/0xa0 kernel/softirq.c:601 tasklet_action_common.constprop.0+0x265/0x360 kernel/softirq.c:522 __do_softirq+0x265/0x980 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x215/0x260 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline] RIP: 0010:lock_release+0x429/0x8b0 kernel/locking/lockdep.c:3930 Code: 84 08 00 00 00 00 00 00 48 c1 e8 03 80 3c 10 00 0f 85 95 03 00 00 48 83 3d 7b 36 a6 08 00 0f 84 cc 01 00 00 48 8b 3c 24 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 49 c7 04 04 00 00 00 RSP: 0018:ffff8880af07f690 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff13e3049 RBX: ffff88805a9d6040 RCX: 1ffff1100b53ad1e RDX: dffffc0000000000 RSI: 0000000000000002 RDI: 0000000000000286 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff11015e0fed5 R13: db4891f40a3221af R14: ffff88805a9d6040 R15: 0000000000000002 page_remove_rmap+0xe5/0x120 mm/rmap.c:1297 zap_pte_range mm/memory.c:1350 [inline] zap_pmd_range mm/memory.c:1463 [inline] zap_pud_range mm/memory.c:1492 [inline] zap_p4d_range mm/memory.c:1513 [inline] unmap_page_range+0x147d/0x2c50 mm/memory.c:1534 unmap_single_vma+0x198/0x300 mm/memory.c:1579 unmap_vmas+0xa9/0x180 mm/memory.c:1609 exit_mmap+0x2b9/0x530 mm/mmap.c:3093 __mmput kernel/fork.c:1015 [inline] mmput+0x14e/0x4a0 kernel/fork.c:1036 exit_mm kernel/exit.c:549 [inline] do_exit+0xaec/0x2be0 kernel/exit.c:857 do_group_exit+0x125/0x310 kernel/exit.c:967 get_signal+0x3f2/0x1f70 kernel/signal.c:2589 do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:799 exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665e9 Code: f0 89 fe 44 31 c7 41 c1 e8 07 41 31 f8 89 f7 c1 ee 10 44 31 c6 8d 04 37 49 89 d0 48 99 48 f7 f9 89 bb 20 01 00 00 89 b3 24 01 <00> 00 48 85 d2 74 0a 48 8b 6c 24 18 48 83 c4 20 c3 4c 89 04 24 48 RSP: 002b:00007f77cf634188 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: fffffffffffffe00 RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 000000000000006b RSI: 0000000000000084 RDI: 0000000000000005 RBP: 00000000004bfcc4 R08: 000000000000001c R09: 0000000000000000 R10: 000000002055bfe4 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffc6ce6793f R14: 00007f77cf634300 R15: 0000000000022000