watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [syz-executor.5:13215] Modules linked in: irq event stamp: 4851985 hardirqs last enabled at (4851984): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4851985): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (4797242): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (4797245): [] __irq_exit_rcu+0x11b/0x180 CPU: 0 PID: 13215 Comm: syz-executor.5 Not tainted 6.1.0-rc8-next-20221208 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__orc_find+0x3f/0xf0 Code: 85 d2 0f 84 99 00 00 00 49 89 fd 4c 39 e7 0f 87 a2 00 00 00 49 bf 00 00 00 00 00 fc ff df 49 89 fe 48 89 fd eb 0c 48 8d 6b 04 <49> 89 de 49 39 ec 72 4d 4c 89 e0 48 29 e8 48 89 c2 48 c1 e8 3f 48 RSP: 0018:ffff88806ce09650 EFLAGS: 00000202 RAX: ffffffff843f8f70 RBX: ffffffff860095bc RCX: ffffffff843f8fae RDX: 0000000000000000 RSI: ffffffff8645e3fa RDI: ffffffff860095ac RBP: ffffffff860095c0 R08: ffffffff8645e3fa R09: ffffffff860f88f6 R10: ffff88806ce09ff8 R11: 0000000000038001 R12: ffffffff860095d0 R13: ffffffff860095ac R14: ffffffff860095ac R15: dffffc0000000000 FS: 00007f2845876700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2c12b000 CR3: 0000000015f6e000 CR4: 0000000000350ef0 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_node+0x1f5/0x420 __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/0xba0 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:lock_acquire+0x1df/0x530 Code: 03 b8 ff ff ff ff 65 0f c1 05 65 51 d6 7e 83 f8 01 0f 85 c8 02 00 00 48 83 7c 24 08 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24 RSP: 0018:ffff888047226c20 EFLAGS: 00000206 RAX: dffffc0000000000 RBX: 1ffff11008e44d86 RCX: 00000000f30f81d0 RDX: 1ffff11008feb483 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8762e8c7 R10: fffffbfff0ec5d18 R11: 0000000000000001 R12: 0000000000000002 R13: 0000000000000000 R14: ffffffff856085a0 R15: 0000000000000000 bio_associate_blkg_from_css+0x4aa/0x1290 bio_associate_blkg+0xca/0x220 bio_init+0x27f/0x500 bio_alloc_bioset+0x4c8/0x8e0 __mpage_writepage+0xdf8/0x1700 write_cache_pages+0x490/0x1190 mpage_writepages+0xc6/0x170 do_writepages+0x1b4/0x6a0 filemap_fdatawrite_wbc+0x14b/0x1b0 __filemap_fdatawrite_range+0xba/0x100 file_write_and_wait_range+0xd2/0x140 __generic_file_fsync+0x78/0x200 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: 0033:0x7f2848321b19 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:00007f2845876188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f2848435020 RCX: 00007f2848321b19 RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000006 RBP: 00007f284837bf6d R08: 0000000000000000 R09: 0000000000000000 R10: 00000000fffffdef R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe853a08cf R14: 00007f2845876300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 13186 Comm: syz-executor.3 Not tainted 6.1.0-rc8-next-20221208 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__lock_acquire+0xd7a/0x5e70 Code: 56 f0 05 e9 b6 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 80 3c 02 00 0f 85 46 35 00 00 49 81 3e e0 83 f1 86 <0f> 84 63 f3 ff ff 83 fe 01 0f 87 6b f3 ff ff 48 b8 00 00 00 00 00 RSP: 0018:ffff88806cf09478 EFLAGS: 00000083 RAX: dffffc0000000000 RBX: 1ffff1100d9e12be RCX: 0000000000000000 RDX: 1ffff1100d9e7253 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: fffffbfff0ba0f92 R11: 0000000000000001 R12: ffff88803a4dd040 R13: 0000000000000000 R14: ffff88806cf39298 R15: 0000000000000000 FS: 00007f490e891700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005561539ec628 CR3: 0000000040db8000 CR4: 0000000000350ee0 Call Trace: lock_acquire+0x1a6/0x530 _raw_spin_lock_nested+0x34/0x40 scheduler_tick+0xa0/0x350 update_process_times+0x13c/0x190 tick_sched_handle+0x9b/0x180 tick_sched_timer+0xf6/0x120 __hrtimer_run_queues+0x17f/0xba0 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 ee 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:ffff88806cf09a28 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff8442021b RDX: fffffbfff0b483b1 RSI: 0000000000000004 RDI: ffffffff85a41d80 RBP: ffffffff85a41d80 R08: 0000000000000000 R09: ffffffff85a41d83 R10: fffffbfff0b483b0 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b483b0 R14: 0000000000000001 R15: 1ffff1100d9e1346 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/0xba0 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:_raw_spin_unlock_irqrestore+0x32/0x60 Code: 48 83 c7 18 53 48 89 f3 48 8b 74 24 10 e8 e6 33 ea fc 48 89 ef e8 ae ab ea fc 80 e7 02 74 06 e8 04 6e 0e fd fb bf 01 00 00 00 79 08 e0 fc 65 8b 05 ea 8f c1 7b 85 c0 74 07 5b 5d e9 5b 29 00 RSP: 0018:ffff888048e276c0 EFLAGS: 00000206 RAX: 0000000000293dc9 RBX: 0000000000000246 RCX: ffffffff812b8edf RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffffffff856d0f40 R08: 0000000000000001 R09: ffffffff8762e8cf R10: fffffbfff0ec5d19 R11: 0000000000000001 R12: ffff888008c9a3c0 R13: 0000000000000dc0 R14: 0000000000000dc0 R15: 0000000000000100 kmem_cache_alloc+0x273/0x410 __proc_create+0x2b3/0x8b0 proc_create_reg+0xb6/0x180 proc_create_seq_private+0x90/0x180 ip_rt_do_proc_init+0xa8/0x130 ops_init+0xbb/0x680 setup_net+0x40c/0x9d0 copy_net_ns+0x31c/0x760 create_new_namespaces+0x3f6/0xb30 copy_namespaces+0x3b7/0x4a0 copy_process+0x29e3/0x7220 kernel_clone+0xeb/0x950 __do_sys_clone3+0x1d9/0x370 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f491133cb19 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:00007f490e891188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f4911450020 RCX: 00007f491133cb19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00 RBP: 00007f4911396f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffca0af50f R14: 00007f490e891300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: 85 d2 test %edx,%edx 2: 0f 84 99 00 00 00 je 0xa1 8: 49 89 fd mov %rdi,%r13 b: 4c 39 e7 cmp %r12,%rdi e: 0f 87 a2 00 00 00 ja 0xb6 14: 49 bf 00 00 00 00 00 movabs $0xdffffc0000000000,%r15 1b: fc ff df 1e: 49 89 fe mov %rdi,%r14 21: 48 89 fd mov %rdi,%rbp 24: eb 0c jmp 0x32 26: 48 8d 6b 04 lea 0x4(%rbx),%rbp * 2a: 49 89 de mov %rbx,%r14 <-- trapping instruction 2d: 49 39 ec cmp %rbp,%r12 30: 72 4d jb 0x7f 32: 4c 89 e0 mov %r12,%rax 35: 48 29 e8 sub %rbp,%rax 38: 48 89 c2 mov %rax,%rdx 3b: 48 c1 e8 3f shr $0x3f,%rax 3f: 48 rex.W