watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor105:11330] Modules linked in: irq event stamp: 2990029 hardirqs last enabled at (2990028): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (2990029): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (2979448): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (2979453): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (2979453): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 0 PID: 11330 Comm: syz-executor105 Not tainted 4.19.189-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:unwind_next_frame+0xace/0x1400 arch/x86/kernel/unwind_orc.c:548 Code: 35 00 48 8b 4c 24 20 4c 89 c0 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 0f b6 04 10 48 89 ce 48 c1 ee 03 0f b6 14 16 4c 89 c6 <83> e6 07 40 38 f0 40 0f 9e c6 84 c0 0f 95 c0 40 84 c6 0f 85 13 07 RSP: 0018:ffff8880ba007758 EFLAGS: 00000a06 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 1ffff11017400ef4 RCX: ffffffff8c119969 RDX: 0000000000000000 RSI: ffffffff8c119968 RDI: ffff8880ba0078e0 RBP: 0000000000000001 R08: ffffffff8c119968 R09: ffffffff8c119952 R10: ffff8880ba0078e7 R11: 0000000000074071 R12: ffff88809c0ff8c8 R13: ffff8880ba0078bd R14: ffff8880ba007888 R15: ffffffff8c119964 FS: 00007f67ee372700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004de4a0 CR3: 000000009b256000 CR4: 00000000001406f0 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 kmem_cache_alloc_node+0x146/0x3b0 mm/slab.c:3649 __alloc_skb+0x71/0x560 net/core/skbuff.c:193 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:535 [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:__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 dc 88 d9 01 00 74 15 48 89 df 57 9d <0f> 1f 44 00 00 eb b2 e8 9b 43 e8 f8 eb c0 0f 0b 0f 0b 48 c7 c7 48 RSP: 0018:ffff88809c0ff8b0 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff13e3049 RBX: 0000000000000282 RCX: 1ffff11014279977 RDX: dffffc0000000000 RSI: ffff8880a13ccb98 RDI: 0000000000000282 RBP: ffffffff8d41d308 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: dead000000000200 R13: ffff88808a800000 R14: 0000000000000000 R15: dffffc0000000000 __debug_check_no_obj_freed lib/debugobjects.c:798 [inline] debug_check_no_obj_freed+0x201/0x490 lib/debugobjects.c:817 free_pages_prepare mm/page_alloc.c:1056 [inline] __free_pages_ok+0x22d/0xd30 mm/page_alloc.c:1279 update_and_free_page+0x839/0xb70 mm/hugetlb.c:1195 free_huge_page+0x877/0xd20 mm/hugetlb.c:1308 __put_page+0xe2/0x3a0 mm/swap.c:112 put_page include/linux/mm.h:963 [inline] gather_surplus_pages mm/hugetlb.c:1832 [inline] hugetlb_acct_memory+0x77f/0xba0 mm/hugetlb.c:3153 hugetlb_reserve_pages+0x47f/0x650 mm/hugetlb.c:4581 hugetlbfs_file_mmap+0x2e4/0x4a0 fs/hugetlbfs/inode.c:164 call_mmap include/linux/fs.h:1826 [inline] mmap_region+0xc94/0x16b0 mm/mmap.c:1757 do_mmap+0x8e8/0x1080 mm/mmap.c:1530 do_mmap_pgoff include/linux/mm.h:2326 [inline] vm_mmap_pgoff+0x197/0x200 mm/util.c:357 ksys_mmap_pgoff+0x42e/0x5a0 mm/mmap.c:1580 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x452d69 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 18 00 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f67ee3721f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00000000004d7268 RCX: 0000000000452d69 RDX: 0000000000000000 RSI: 0000000000e7e000 RDI: 0000000020000000 RBP: 00000000004d7260 R08: 00000000ffffffff R09: 0000000000000000 R10: 0000000000040031 R11: 0000000000000246 R12: 00000000004d726c R13: 00007ffc8b4b29cf R14: 00007f67ee372300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 11329 Comm: syz-executor105 Not tainted 4.19.189-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__read_once_size include/linux/compiler.h:261 [inline] RIP: 0010:trylock_clear_pending kernel/locking/qspinlock_paravirt.h:123 [inline] RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:436 [inline] RIP: 0010:__pv_queued_spin_lock_slowpath+0x3b0/0xae0 kernel/locking/qspinlock.c:474 Code: 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 85 75 05 00 00 0f b6 45 00 84 RSP: 0018:ffff88809c71f980 EFLAGS: 00000202 RAX: 0000000000000003 RBX: 0000000000000000 RCX: 1ffffffff1404194 RDX: 0000000000000001 RSI: ffffffff81678725 RDI: 0000000000000282 RBP: ffffffff8a020ca0 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000002b0e R13: fffffbfff1404194 R14: 0000000000000001 R15: ffff8880ba12bd80 FS: 00007f67ee372700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000040 CR3: 000000009b7b1000 CR4: 00000000001406e0 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] gather_surplus_pages mm/hugetlb.c:1833 [inline] hugetlb_acct_memory+0x997/0xba0 mm/hugetlb.c:3153 hugetlb_reserve_pages+0x47f/0x650 mm/hugetlb.c:4581 hugetlbfs_file_mmap+0x2e4/0x4a0 fs/hugetlbfs/inode.c:164 call_mmap include/linux/fs.h:1826 [inline] mmap_region+0xc94/0x16b0 mm/mmap.c:1757 do_mmap+0x8e8/0x1080 mm/mmap.c:1530 do_mmap_pgoff include/linux/mm.h:2326 [inline] vm_mmap_pgoff+0x197/0x200 mm/util.c:357 ksys_mmap_pgoff+0x42e/0x5a0 mm/mmap.c:1580 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x452d69 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 18 00 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f67ee3721f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00000000004d7268 RCX: 0000000000452d69 RDX: 0000000000000000 RSI: 0000000000e7e000 RDI: 0000000020000000 RBP: 00000000004d7260 R08: 00000000ffffffff R09: 0000000000000000 R10: 0000000000040031 R11: 0000000000000246 R12: 00000000004d726c R13: 00007ffc8b4b29cf R14: 00007f67ee372300 R15: 0000000000022000