watchdog: BUG: soft lockup - CPU#0 stuck for 143s! [syz-executor.5:28726] Modules linked in: irq event stamp: 13422140 hardirqs last enabled at (13422139): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 hardirqs last disabled at (13422140): [] sysvec_apic_timer_interrupt+0xb/0xc0 arch/x86/kernel/apic/apic.c:1100 softirqs last enabled at (12638): [] invoke_softirq kernel/softirq.c:432 [inline] softirqs last enabled at (12638): [] __irq_exit_rcu+0x16e/0x1c0 kernel/softirq.c:636 softirqs last disabled at (12223): [] invoke_softirq kernel/softirq.c:432 [inline] softirqs last disabled at (12223): [] __irq_exit_rcu+0x16e/0x1c0 kernel/softirq.c:636 CPU: 0 PID: 28726 Comm: syz-executor.5 Not tainted 5.14.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:trylock_clear_pending kernel/locking/qspinlock_paravirt.h:121 [inline] RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:435 [inline] RIP: 0010:__pv_queued_spin_lock_slowpath+0x3c4/0xb40 kernel/locking/qspinlock.c:508 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 72 04 00 00 <41> 0f b6 45 00 38 d8 7f 08 84 c0 0f 85 91 05 00 00 0f b6 45 00 84 RSP: 0018:ffffc9001504f0e0 EFLAGS: 00000206 RAX: 0000000000000003 RBX: 0000000000000000 RCX: 1ffff11005121248 RDX: 0000000000000001 RSI: ffffffff817bd241 RDI: ffffffff81332591 RBP: ffff888028909240 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff817bd209 R11: 0000000000000000 R12: 0000000000001ce2 R13: ffffed1005121248 R14: 0000000000000001 R15: ffff8880b9c52900 FS: 00007ff52ef63700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055dc4b144ea8 CR3: 0000000064ac0000 CR4: 00000000001506f0 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:585 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline] queued_spin_lock include/asm-generic/qspinlock.h:85 [inline] do_raw_spin_lock+0x200/0x2b0 kernel/locking/spinlock_debug.c:113 spin_lock include/linux/spinlock.h:354 [inline] ext4_lock_group fs/ext4/ext4.h:3456 [inline] ext4_mb_regular_allocator+0x1977/0x3870 fs/ext4/mballoc.c:2740 ext4_mb_new_blocks+0x24d4/0x5230 fs/ext4/mballoc.c:5515 ext4_ext_map_blocks+0x1fa3/0x6070 fs/ext4/extents.c:4245 ext4_map_blocks+0x653/0x17d0 fs/ext4/inode.c:638 ext4_alloc_file_blocks.isra.0+0x2c1/0xae0 fs/ext4/extents.c:4432 ext4_fallocate+0x45e/0x3ff0 fs/ext4/extents.c:4712 vfs_fallocate+0x48d/0xd80 fs/open.c:311 ioctl_preallocate+0x18e/0x200 fs/ioctl.c:497 file_ioctl fs/ioctl.c:537 [inline] do_vfs_ioctl+0x1144/0x15d0 fs/ioctl.c:1048 __do_sys_ioctl fs/ioctl.c:1067 [inline] __se_sys_ioctl fs/ioctl.c:1055 [inline] __x64_sys_ioctl+0x108/0x200 fs/ioctl.c:1055 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665f9 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff52ef63188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665f9 RDX: 0000000020000040 RSI: 000000004030582a RDI: 0000000000000003 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007fff263a2d6f R14: 00007ff52ef63300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 28721 Comm: syz-executor.1 Not tainted 5.14.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:asm_sysvec_apic_timer_interrupt+0x0/0x20 arch/x86/include/asm/idtentry.h:637 Code: 00 66 0f 1f 84 00 00 00 00 00 0f 1f 00 6a ff e8 76 03 00 00 48 89 e7 e8 be 63 ea ff e9 29 04 00 00 66 0f 1f 84 00 00 00 00 00 <0f> 1f 00 6a ff e8 56 03 00 00 48 89 e7 e8 0e 62 ea ff e9 09 04 00 RSP: 0018:ffffc90000dc0b78 EFLAGS: 00000046 RAX: 0000000000000000 RBX: ffff88801fecb2a0 RCX: 0000000000000100 RDX: 0000000000000004 RSI: ffffffff85327a83 RDI: ffff88801fecef4c RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000000 R10: ffffffff85327ab9 R11: 0000000000000000 R12: ffff888092ffc640 R13: ffff88801d6934d0 R14: ffff88801d6932a0 R15: 0000000000000000 FS: 00007f9653724700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe86fe3960 CR3: 000000006d7bb000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: RIP: 0010:mac80211_hwsim_tx_frame_no_nl.isra.0+0x78f/0x1330 drivers/net/wireless/mac80211_hwsim.c:1527 Code: bb ac 3c 00 00 48 89 f8 48 89 fa 48 c1 e8 03 83 e2 07 0f b6 04 28 38 d0 7f 08 84 c0 0f 85 36 09 00 00 44 0f b6 bb ac 3c 00 00 <31> ff 44 89 fe e8 77 34 43 fc 45 84 ff 0f 84 77 ff ff ff e8 29 2e mac80211_hwsim_tx_frame+0x1ee/0x2a0 drivers/net/wireless/mac80211_hwsim.c:1784 mac80211_hwsim_beacon_tx+0x49b/0x930 drivers/net/wireless/mac80211_hwsim.c:1838 __iterate_interfaces+0x1e5/0x520 net/mac80211/util.c:793 ieee80211_iterate_active_interfaces_atomic+0x70/0x180 net/mac80211/util.c:829 mac80211_hwsim_beacon+0xd5/0x1a0 drivers/net/wireless/mac80211_hwsim.c:1861 __run_hrtimer kernel/time/hrtimer.c:1537 [inline] __hrtimer_run_queues+0x609/0xe50 kernel/time/hrtimer.c:1601 hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1618 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x16e/0x1c0 kernel/softirq.c:636 irq_exit_rcu+0x5/0x20 kernel/softirq.c:648 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:crypto_shash_update+0xcc/0x120 crypto/shash.c:132 Code: b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 56 4c 89 e6 44 89 ea 48 89 ef ff 53 a8 41 89 c4 e8 24 3f ca fd <44> 89 e0 5b 5d 41 5c 41 5d 41 5e c3 e8 13 3f ca fd 4c 89 e6 44 89 RSP: 0018:ffffc90014fb7218 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffffffff8b81f840 RCX: ffffc9000b963000 RDX: 0000000000040000 RSI: ffffffff83ab69cc RDI: 0000000000000003 RBP: ffffc90014fb72a0 R08: 0000000000000000 R09: 00000000b21a1d01 R10: ffffffff8141ef92 R11: 0000000000000000 R12: 0000000000000000 R13: 000000000000001e R14: 0000000000000000 R15: 0000000000000004 ext4_chksum fs/ext4/ext4.h:2388 [inline] ext4_group_desc_csum+0x30d/0x9c0 fs/ext4/super.c:2804 ext4_group_desc_csum_set+0xc7/0x2a0 fs/ext4/super.c:2850 ext4_mb_mark_diskspace_used+0x7b5/0x1230 fs/ext4/mballoc.c:3788 ext4_mb_new_blocks+0xd30/0x5230 fs/ext4/mballoc.c:5533 ext4_ext_map_blocks+0x1fa3/0x6070 fs/ext4/extents.c:4245 ext4_map_blocks+0x653/0x17d0 fs/ext4/inode.c:638 ext4_alloc_file_blocks.isra.0+0x2c1/0xae0 fs/ext4/extents.c:4432 ext4_fallocate+0x45e/0x3ff0 fs/ext4/extents.c:4712 vfs_fallocate+0x48d/0xd80 fs/open.c:311 ioctl_preallocate+0x18e/0x200 fs/ioctl.c:497 file_ioctl fs/ioctl.c:537 [inline] do_vfs_ioctl+0x1144/0x15d0 fs/ioctl.c:1048 __do_sys_ioctl fs/ioctl.c:1067 [inline] __se_sys_ioctl fs/ioctl.c:1055 [inline] __x64_sys_ioctl+0x108/0x200 fs/ioctl.c:1055 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665f9 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f9653724188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665f9 RDX: 0000000020000040 RSI: 000000004030582a RDI: 0000000000000003 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007fff29bf853f R14: 00007f9653724300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: 00 48 c1 add %cl,-0x3f(%rax) 3: e9 03 83 e3 07 jmpq 0x7e3830b 8: 41 be 01 00 00 00 mov $0x1,%r14d e: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 15: fc ff df 18: 4c 8d 2c 01 lea (%rcx,%rax,1),%r13 1c: eb 0c jmp 0x2a 1e: f3 90 pause 20: 41 83 ec 01 sub $0x1,%r12d 24: 0f 84 72 04 00 00 je 0x49c * 2a: 41 0f b6 45 00 movzbl 0x0(%r13),%eax <-- trapping instruction 2f: 38 d8 cmp %bl,%al 31: 7f 08 jg 0x3b 33: 84 c0 test %al,%al 35: 0f 85 91 05 00 00 jne 0x5cc 3b: 0f b6 45 00 movzbl 0x0(%rbp),%eax 3f: 84 .byte 0x84