watchdog: BUG: soft lockup - CPU#1 stuck for 21s! [syz-executor.5:9140] Modules linked in: irq event stamp: 3355229 hardirqs last enabled at (3355228): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (3355229): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (3343646): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (3343649): [] __irq_exit_rcu+0x11b/0x180 CPU: 1 PID: 9140 Comm: syz-executor.5 Not tainted 6.1.0-next-20221219 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__orc_find+0x83/0xf0 Code: 01 d0 48 d1 f8 48 8d 5c 85 00 48 89 d8 48 c1 e8 03 42 0f b6 14 38 48 89 d8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 50 48 63 03 <48> 01 d8 48 39 c1 73 b0 4c 8d 63 fc 49 39 ec 73 b3 4d 29 ee 49 c1 RSP: 0018:ffff88806cf095a8 EFLAGS: 00000246 RAX: fffffffffbb35aaa RBX: ffffffff85dd5a38 RCX: ffffffff8190b4d2 RDX: 0000000000000000 RSI: ffffffff86110f96 RDI: ffffffff85dd5a2c RBP: ffffffff85dd5a2c R08: ffffffff86110f96 R09: ffffffff861116e4 R10: ffff88806cf09ff8 R11: 0000000000038001 R12: ffffffff85dd5a48 R13: ffffffff85dd5a2c R14: ffffffff85dd5a2c R15: dffffc0000000000 FS: 00007f9204822700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000033406000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: unwind_next_frame+0x2b1/0x2130 arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_slab_alloc+0x5c/0x70 kmem_cache_alloc+0x1e1/0x410 __create_object+0x3d/0xc40 kmem_cache_alloc_node+0x283/0x420 __alloc_skb+0x21a/0x310 skb_copy+0x13d/0x3d0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb6d/0x1360 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x566/0xab0 __iterate_interfaces+0x2d3/0x560 ieee80211_iterate_active_interfaces_atomic+0x74/0x180 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xc70 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x8f9 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x9/0x30 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:rcu_preempt_deferred_qs_irqrestore+0x142/0xf00 Code: 84 f6 75 3c 41 f7 c4 00 02 00 00 75 13 48 83 c4 50 5b 5d 41 5c 41 5d 41 5e 41 5f e9 7c 32 0e 03 e8 23 dd 1b 00 fb 48 83 c4 50 <5b> 5d 41 5c 41 5d 41 5e 41 5f e9 63 32 0e 03 e8 ea 68 ff ff eb 8e RSP: 0018:ffff888043fef258 EFLAGS: 00000282 RAX: 0000000000312067 RBX: ffff888016915040 RCX: ffffffff812b740f RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff88806cf3a040 R08: 0000000000000001 R09: ffffffff87635967 R10: fffffbfff0ec6b2c R11: 0000000000000001 R12: 0000000000000246 R13: ffff88806cf3a051 R14: 0000000000010100 R15: ffff888016915438 __rcu_read_unlock+0x289/0x520 find_get_pages_range_tag+0x475/0xa60 pagevec_lookup_range_tag+0x3f/0x90 __filemap_fdatawait_range+0xcf/0x340 filemap_fdatawait_range+0x25/0x40 __writeback_single_inode+0x7a7/0xf50 writeback_single_inode+0x2b1/0x590 sync_inode_metadata+0xa5/0xe0 __generic_file_fsync+0x167/0x200 fat_file_fsync+0x77/0x200 vfs_fsync_range+0x141/0x230 generic_file_write_iter+0x25e/0x350 do_iter_readv_writev+0x211/0x3c0 do_iter_write+0x18b/0x700 vfs_iter_write+0x74/0xb0 iter_file_splice_write+0x73e/0xcb0 direct_splice_actor+0x113/0x180 splice_direct_to_actor+0x33a/0x8c0 do_splice_direct+0x1bc/0x290 do_sendfile+0xb1d/0x1280 __x64_sys_sendfile64+0x248/0x2a0 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f92072acb19 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:00007f9204822188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f92073bff60 RCX: 00007f92072acb19 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000006 RBP: 00007f9207306f6d R08: 0000000000000000 R09: 0000000000000000 R10: 00000000fffffdef R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffce144a6f R14: 00007f9204822300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 9175 Comm: syz-executor.1 Not tainted 6.1.0-next-20221219 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__hrtimer_run_queues+0x2a/0xc70 Code: 41 57 41 56 41 55 49 89 fd 41 54 55 48 bd 00 00 00 00 00 fc ff df 53 89 cb 48 81 ec c0 00 00 00 48 8d 44 24 60 48 89 54 24 28 <48> c1 e8 03 48 89 74 24 48 48 89 44 24 58 48 01 e8 48 c7 44 24 60 RSP: 0018:ffff88806ce097a8 EFLAGS: 00000082 RAX: ffff88806ce09808 RBX: 000000000000000f RCX: 000000000000000f RDX: 0000000000000046 RSI: 000000a141c9f3e3 RDI: ffff88806ce2b840 RBP: dffffc0000000000 R08: 0000000000000006 R09: 7fffffffffffffff R10: 000000a141c9f3e3 R11: 0000000000000001 R12: 0000000000000046 R13: ffff88806ce2b840 R14: 0000000000000001 R15: ffff88806ce2b840 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000557457075628 CR3: 000000004284e000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: hrtimer_interrupt+0x319/0x770 __sysvec_apic_timer_interrupt+0x148/0x500 sysvec_apic_timer_interrupt+0x3f/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:queued_spin_lock_slowpath+0x128/0xc80 Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 cd 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 ce 1f 00 00 f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e5 00 00 RSP: 0018:ffff88806ce09a28 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff8442783b RDX: fffffbfff0b48541 RSI: 0000000000000004 RDI: ffffffff85a42a00 RBP: ffffffff85a42a00 R08: 0000000000000000 R09: ffffffff85a42a03 R10: fffffbfff0b48540 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b48540 R14: 0000000000000001 R15: 1ffff1100d9c1346 do_raw_spin_lock+0x1e0/0x270 mac80211_hwsim_tx_frame_no_nl.isra.0+0x6f1/0x1360 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x566/0xab0 __iterate_interfaces+0x2d3/0x560 ieee80211_iterate_active_interfaces_atomic+0x74/0x180 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xc70 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x8f9 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x9/0x30 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:kasan_check_range+0x179/0x1d0 Code: ff ff 41 bb 01 00 00 00 5b 5d 44 89 d8 41 5c e9 71 4c c5 02 48 85 d2 74 e9 48 01 ea eb 09 48 83 c0 01 48 39 d0 74 db 80 38 00 <74> f2 e9 64 ff ff ff 41 bb 01 00 00 00 44 89 d8 e9 46 4c c5 02 48 RSP: 0018:ffff888032bf7688 EFLAGS: 00000246 RAX: fffff9400019b2a0 RBX: fffff9400019b2a1 RCX: ffffffff8179119f RDX: fffff9400019b2a1 RSI: 0000000000000008 RDI: ffffea0000cd9500 RBP: fffff9400019b2a0 R08: 0000000000000000 R09: ffffea0000cd9507 R10: fffff9400019b2a0 R11: 0000000000000001 R12: ffff888009e501a0 R13: ffffea0000cd9500 R14: ffffea0000cd9530 R15: ffff888032bf7ad8 PageHuge+0x1f/0x230 page_remove_rmap+0x37/0x610 unmap_page_range+0x1fdf/0x2c10 unmap_single_vma+0x190/0x2a0 unmap_vmas+0x226/0x380 exit_mmap+0x158/0x680 mmput+0xd5/0x390 do_exit+0x99b/0x2760 do_group_exit+0xd4/0x2a0 get_signal+0x21b7/0x22f0 arch_do_signal_or_restart+0x79/0x5a0 exit_to_user_mode_prepare+0x131/0x1a0 syscall_exit_to_user_mode+0x1d/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f8e9ed6fb19 Code: Unable to access opcode bytes at 0x7f8e9ed6faef. RSP: 002b:00007f8e9c2e5188 EFLAGS: 00000246 ORIG_RAX: 0000000000000126 RAX: 0000000000000007 RBX: 00007f8e9ee82f60 RCX: 00007f8e9ed6fb19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f8e9edc9f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcfcafcfdf R14: 00007f8e9c2e5300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: 01 d0 add %edx,%eax 2: 48 d1 f8 sar %rax 5: 48 8d 5c 85 00 lea 0x0(%rbp,%rax,4),%rbx a: 48 89 d8 mov %rbx,%rax d: 48 c1 e8 03 shr $0x3,%rax 11: 42 0f b6 14 38 movzbl (%rax,%r15,1),%edx 16: 48 89 d8 mov %rbx,%rax 19: 83 e0 07 and $0x7,%eax 1c: 83 c0 03 add $0x3,%eax 1f: 38 d0 cmp %dl,%al 21: 7c 04 jl 0x27 23: 84 d2 test %dl,%dl 25: 75 50 jne 0x77 27: 48 63 03 movslq (%rbx),%rax * 2a: 48 01 d8 add %rbx,%rax <-- trapping instruction 2d: 48 39 c1 cmp %rax,%rcx 30: 73 b0 jae 0xffffffe2 32: 4c 8d 63 fc lea -0x4(%rbx),%r12 36: 49 39 ec cmp %rbp,%r12 39: 73 b3 jae 0xffffffee 3b: 4d 29 ee sub %r13,%r14 3e: 49 rex.WB 3f: c1 .byte 0xc1