IPv6: ADDRCONF(NETDEV_UP): vlan654: link is not ready netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'. watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.5:1363] Modules linked in: irq event stamp: 3471301 hardirqs last enabled at (3471300): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (3471301): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (0): [] copy_process.part.0+0x15b9/0x8260 kernel/fork.c:1856 softirqs last disabled at (1197): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (1197): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 0 PID: 1363 Comm: syz-executor.5 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 RIP: 0010:unwind_next_frame+0xf71/0x1400 arch/x86/kernel/unwind_orc.c:555 Code: c1 45 84 c0 41 0f 95 c0 45 84 c1 0f 85 b3 02 00 00 83 e0 07 40 38 c6 41 0f 9e c0 40 84 f6 0f 95 c0 41 84 c0 0f 85 9a 02 00 00 <49> 0f bf 77 02 4c 89 f7 48 03 74 24 68 e8 ad ee ff ff 84 c0 0f 85 RSP: 0018:ffff8880ba0077a8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 1ffff11017400efe RCX: ffffffff8c11cfe1 RDX: ffff8880ba007918 RSI: 0000000000000000 RDI: ffffffff8c11cfde RBP: 0000000000000002 R08: 0000000000000001 R09: 0000000000000001 R10: ffff8880ba007937 R11: 0000000000074071 R12: ffff8880ba007fb0 R13: ffff8880ba00790d R14: ffff8880ba0078d8 R15: ffffffff8c11cfdc FS: 00007f5a96ed0700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2166e74718 CR3: 00000000a895c000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __save_stack_trace+0x9f/0x190 arch/x86/kernel/stacktrace.c:44 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 __do_kmalloc_node mm/slab.c:3689 [inline] __kmalloc_node_track_caller+0x4c/0x70 mm/slab.c:3703 __kmalloc_reserve net/core/skbuff.c:137 [inline] __alloc_skb+0xae/0x560 net/core/skbuff.c:205 alloc_skb include/linux/skbuff.h:995 [inline] mrp_pdu_init net/802/mrp.c:316 [inline] mrp_pdu_append_vecattr_event+0x7d2/0x1050 net/802/mrp.c:415 mrp_attr_event+0x15d/0x220 net/802/mrp.c:510 mrp_mad_event net/802/mrp.c:590 [inline] mrp_join_timer+0x5a/0xc0 net/802/mrp.c:607 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375 __run_timers kernel/time/timer.c:1696 [inline] run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709 __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:___might_sleep+0x20/0x2b0 kernel/sched/core.c:6157 Code: e9 5f ff ff ff 0f 1f 44 00 00 41 56 41 55 41 54 41 89 f4 55 48 89 fd 53 89 d3 e8 5b 2b 0f 00 85 c0 74 0d 80 3d 34 18 cd 09 00 <0f> 84 b3 01 00 00 e8 45 2b 0f 00 85 c0 74 0d 80 3d 1d 18 cd 09 00 RSP: 0018:ffff88803e837d18 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000001 RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff88809ea888c4 RBP: ffffffff8870c460 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000002823 R13: ffff88803e837e40 R14: 0000000000000000 R15: 0000000000000000 IPv6: ADDRCONF(NETDEV_UP): vlan826: link is not ready __might_fault+0xba/0x1d0 mm/memory.c:4769 perf_copy_attr+0xab/0x7a0 kernel/events/core.c:10275 __do_sys_perf_event_open kernel/events/core.c:10571 [inline] __se_sys_perf_event_open+0xb4/0x2720 kernel/events/core.c:10549 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f5a9855b279 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f5a96ed0168 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f5a9866df80 RCX: 00007f5a9855b279 RDX: 0000000000000000 RSI: 0000000000000e10 RDI: 0000000000000000 RBP: 00007f5a985b52e9 R08: 0000000000000008 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffed26b091f R14: 00007f5a96ed0300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 2889 Comm: kworker/u4:4 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 Workqueue: bat_events batadv_tt_purge RIP: 0010:__local_bh_enable_ip+0x14f/0x270 kernel/softirq.c:192 Code: 3d 00 02 00 00 0f 84 94 00 00 00 8d 7b ff e8 48 4a 08 00 65 8b 05 c1 bc c8 7e a9 00 ff 1f 00 0f 84 90 00 00 00 bf 01 00 00 00 2c 4a 08 00 e8 97 86 2e 00 48 c7 c0 98 82 f1 89 48 ba 00 00 00 RSP: 0018:ffff8880ac387ca8 EFLAGS: 00000046 RAX: 0000000000000000 RBX: 0000000000000201 RCX: ffffffff83771e23 RDX: 0000000000000000 RSI: ffffffff83771e31 RDI: 0000000000000001 RBP: ffffffff87dbdfc6 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880ac36c040 R13: dffffc0000000000 R14: 00000000000000e3 R15: ffff8880a4434400 FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f668468c018 CR3: 0000000044acc000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: spin_unlock_bh include/linux/spinlock.h:374 [inline] batadv_tt_global_purge net/batman-adv/translation-table.c:2541 [inline] batadv_tt_purge+0x386/0xa00 net/batman-adv/translation-table.c:3812 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415