wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.4:10907] Modules linked in: irq event stamp: 2941346 hardirqs last enabled at (2941345): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (2941346): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (2935832): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (2935659): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (2935659): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 0 PID: 10907 Comm: syz-executor.4 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:435 [inline] RIP: 0010:__pv_queued_spin_lock_slowpath+0x3a6/0xae0 kernel/locking/qspinlock.c:474 Code: eb c6 45 01 01 41 bc 00 80 00 00 48 c1 e9 03 83 e3 07 41 be 01 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8d 2c 01 eb 0c f3 90 <41> 83 ec 01 0f 84 38 04 00 00 41 0f b6 45 00 38 d8 7f 08 84 c0 0f RSP: 0018:ffff8880894a7380 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000003 RBX: 0000000000000000 RCX: 1ffffffff1479ff4 RDX: 0000000000000001 RSI: ffffffff8167a995 RDI: 0000000000000286 RBP: ffffffff8a3cffa0 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 00000000000074ea R13: fffffbfff1479ff4 R14: 0000000000000001 R15: ffff8880ba02be00 FS: 00007fe7d461d700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb1ba58e718 CR3: 00000000a5a6f000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:679 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:53 [inline] queued_spin_lock include/asm-generic/qspinlock.h:88 [inline] do_raw_spin_lock+0x189/0x220 kernel/locking/spinlock_debug.c:113 spin_lock include/linux/spinlock.h:329 [inline] proc_keys_start+0x4d/0x450 security/keys/proc.c:123 seq_read+0x2a0/0x11c0 fs/seq_file.c:227 proc_reg_read+0x1bd/0x2d0 fs/proc/inode.c:231 do_loop_readv_writev fs/read_write.c:701 [inline] do_loop_readv_writev fs/read_write.c:688 [inline] do_iter_read+0x471/0x630 fs/read_write.c:925 vfs_readv+0xe5/0x150 fs/read_write.c:987 kernel_readv fs/splice.c:362 [inline] default_file_splice_read+0x457/0xa00 fs/splice.c:417 do_splice_to+0x10e/0x160 fs/splice.c:881 splice_direct_to_actor+0x2b9/0x8d0 fs/splice.c:959 do_splice_direct+0x1a7/0x270 fs/splice.c:1068 do_sendfile+0x550/0xc30 fs/read_write.c:1447 __do_sys_sendfile64 fs/read_write.c:1508 [inline] __se_sys_sendfile64+0x147/0x160 fs/read_write.c:1494 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fe7d4ea8059 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:00007fe7d461d168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007fe7d4fbaf60 RCX: 00007fe7d4ea8059 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 000000000000000d RBP: 00007fe7d4f0208d R08: 0000000000000000 R09: 0000000000000000 R10: 000000007ffff06c R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc3665bc9f R14: 00007fe7d461d300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 10909 Comm: syz-executor.1 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:lockdep_hardirqs_off+0x22/0x2c0 kernel/locking/lockdep.c:2895 Code: 0f 1f 84 00 00 00 00 00 48 c7 c0 60 f1 45 8a 41 54 48 ba 00 00 00 00 00 fc ff df 48 89 c1 55 83 e0 07 48 89 fd 48 c1 e9 03 53 <83> c0 03 0f b6 14 11 65 48 8b 1c 25 c0 df 01 00 38 d0 7c 08 84 d2 RSP: 0018:ffff8880ba107450 EFLAGS: 00000802 RAX: 0000000000000000 RBX: ffff8880ba124cc0 RCX: 1ffffffff148be2c RDX: dffffc0000000000 RSI: ffffffff8167adc4 RDI: ffffffff88194e05 RBP: ffffffff88194e05 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000005 R11: ffffffff8c66505b R12: 0000000000000000 R13: ffff8880a15c41d8 R14: ffff8880ba124d40 R15: dffffc0000000000 FS: 00007fb1ba5af700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555555c0b108 CR3: 00000000a593f000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __raw_spin_lock_irq include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_irq+0x35/0x80 kernel/locking/spinlock.c:160 __run_hrtimer kernel/time/hrtimer.c:1467 [inline] __hrtimer_run_queues+0x45d/0xe60 kernel/time/hrtimer.c:1527 hrtimer_interrupt+0x326/0x9e0 kernel/time/hrtimer.c:1585 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:unwind_next_frame+0xb08/0x1400 arch/x86/kernel/unwind_orc.c:548 Code: 84 c6 0f 85 13 07 00 00 48 89 c8 83 e0 07 38 c2 40 0f 9e c6 84 d2 0f 95 c0 40 84 c6 0f 85 f9 06 00 00 41 0f b6 47 04 c0 e8 04 <3c> 01 0f 84 fc 03 00 00 3c 04 0f 84 78 04 00 00 84 c0 0f 84 c7 02 RSP: 0018:ffff8880ba107730 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000001 RBX: 1ffff11017420eef RCX: ffffffff8c092621 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8880ba1078b8 RBP: 0000000000000002 R08: ffffffff8c092620 R09: ffffffff8c092610 R10: ffff8880ba1078bf R11: 0000000000074071 R12: ffff8880ba107ea0 R13: ffff8880ba107895 R14: ffff8880ba107860 R15: ffffffff8c09261c __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 kmem_cache_alloc_node_trace+0x151/0x3b0 mm/slab.c:3668 __do_kmalloc_node mm/slab.c:3688 [inline] __kmalloc_node_track_caller+0x38/0x70 mm/slab.c:3703 __kmalloc_reserve net/core/skbuff.c:137 [inline] __alloc_skb+0xae/0x560 net/core/skbuff.c:205 skb_copy+0x139/0x2f0 net/core/skbuff.c:1358 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb8a/0x1330 drivers/net/wireless/mac80211_hwsim.c:1353 mac80211_hwsim_tx_frame+0x12b/0x210 drivers/net/wireless/mac80211_hwsim.c:1556 mac80211_hwsim_beacon_tx+0x3f8/0x680 drivers/net/wireless/mac80211_hwsim.c:1595 __iterate_interfaces+0x2e1/0x4a0 net/mac80211/util.c:614 ieee80211_iterate_active_interfaces_atomic+0x8d/0x170 net/mac80211/util.c:650 mac80211_hwsim_beacon+0xc9/0x190 drivers/net/wireless/mac80211_hwsim.c:1615 __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:vsnprintf+0xf1b/0x14f0 lib/vsprintf.c:2269 Code: f9 48 8b 4c 24 68 4c 89 f2 4c 89 e7 48 8b 74 24 18 e8 a9 44 ff ff 4c 89 ea 49 89 c4 4c 89 e8 83 e2 07 48 c1 e8 03 0f b6 04 18 <38> d0 0f 8f 1d f3 ff ff 84 c0 0f 84 15 f3 ff ff 4c 89 ef e8 7d a4 RSP: 0018:ffff88808db7f128 EFLAGS: 00000a03 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffffffff87f00771 RDX: 0000000000000007 RSI: ffffffff87f007da RDI: 0000000000000005 RBP: 0000000000000030 R08: 0000000000000010 R09: 0000000000000000 R10: 0000000000000005 R11: 00000000a8d1f317 R12: ffff8880a22f9114 R13: ffffffff88ab7f97 R14: 0000000000000001 R15: ffff88808db7f240 seq_vprintf fs/seq_file.c:394 [inline] seq_printf+0x195/0x240 fs/seq_file.c:409 proc_keys_show+0x783/0xbf0 security/keys/proc.c:228 seq_read+0xc22/0x11c0 fs/seq_file.c:271 proc_reg_read+0x1bd/0x2d0 fs/proc/inode.c:231 do_loop_readv_writev fs/read_write.c:701 [inline] do_loop_readv_writev fs/read_write.c:688 [inline] do_iter_read+0x471/0x630 fs/read_write.c:925 vfs_readv+0xe5/0x150 fs/read_write.c:987 kernel_readv fs/splice.c:362 [inline] default_file_splice_read+0x457/0xa00 fs/splice.c:417 do_splice_to+0x10e/0x160 fs/splice.c:881 splice_direct_to_actor+0x2b9/0x8d0 fs/splice.c:959 do_splice_direct+0x1a7/0x270 fs/splice.c:1068 do_sendfile+0x550/0xc30 fs/read_write.c:1447 __do_sys_sendfile64 fs/read_write.c:1508 [inline] __se_sys_sendfile64+0x147/0x160 fs/read_write.c:1494 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fb1bae3a059 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:00007fb1ba5af168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007fb1baf4cf60 RCX: 00007fb1bae3a059 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 000000000000000d RBP: 00007fb1bae9408d R08: 0000000000000000 R09: 0000000000000000 R10: 000000007ffff06c R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd31aa6 ---------------- Code disassembly (best guess): 0: eb c6 jmp 0xffffffc8 2: 45 01 01 add %r8d,(%r9) 5: 41 bc 00 80 00 00 mov $0x8000,%r12d b: 48 c1 e9 03 shr $0x3,%rcx f: 83 e3 07 and $0x7,%ebx 12: 41 be 01 00 00 00 mov $0x1,%r14d 18: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 1f: fc ff df 22: 4c 8d 2c 01 lea (%rcx,%rax,1),%r13 26: eb 0c jmp 0x34 28: f3 90 pause * 2a: 41 83 ec 01 sub $0x1,%r12d <-- trapping instruction 2e: 0f 84 38 04 00 00 je 0x46c 34: 41 0f b6 45 00 movzbl 0x0(%r13),%eax 39: 38 d8 cmp %bl,%al 3b: 7f 08 jg 0x45 3d: 84 c0 test %al,%al 3f: 0f .byte 0xf