syz-executor.4 (5164) used greatest stack depth: 24008 bytes left watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.0:5117] Modules linked in: irq event stamp: 5938649 hardirqs last enabled at (5938648): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (5938649): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (5877380): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (5877383): [] __irq_exit_rcu+0x11b/0x180 CPU: 1 PID: 5117 Comm: syz-executor.0 Not tainted 6.2.0-rc1-next-20221226 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__orc_find+0x6f/0xf0 Code: 72 4d 4c 89 e0 48 29 e8 48 89 c2 48 c1 e8 3f 48 c1 fa 02 48 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 RSP: 0018:ffff88806cf09800 EFLAGS: 00000217 RAX: 1ffffffff0c018f0 RBX: ffffffff8600c784 RCX: ffffffff843e93a1 RDX: 0000000000000000 RSI: ffffffff864631f2 RDI: ffffffff8600c764 RBP: ffffffff8600c764 R08: ffffffff864631f2 R09: ffffffff8605ad34 R10: ffffed100d9e1326 R11: 0000000000038001 R12: ffffffff8600c7a4 R13: ffffffff8600c764 R14: ffffffff8600c764 R15: dffffc0000000000 FS: 00007fb6be192700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555556247c58 CR3: 0000000019bfa000 CR4: 0000000000350ee0 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_save_free_info+0x2e/0x50 __kasan_slab_free+0x10a/0x190 kmem_cache_free+0xfb/0x610 kfree_skbmem+0xef/0x1b0 consume_skb+0xd8/0x170 mac80211_hwsim_tx_frame+0x1f6/0x2a0 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:__local_bh_enable_ip+0xac/0x130 Code: 1d 81 7b eb 7e 65 8b 05 7a 7b eb 7e a9 00 ff ff 00 74 49 bf 01 00 00 00 e8 91 9f 09 00 e8 9c e3 37 00 fb 65 8b 05 5c 7b eb 7e <85> c0 74 5c 5b 5d e9 cd cb 28 03 65 8b 05 be 77 ea 7e 85 c0 75 9e RSP: 0018:ffff88804905f3d0 EFLAGS: 00000206 RAX: 0000000000000000 RBX: 00000000fffffe01 RCX: ffffffff812b3b2f RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffffff837a207e R08: 0000000000000001 R09: ffffffff8763294f R10: fffffbfff0ec6529 R11: 0000000000000001 R12: 0000000000000000 R13: ffff88801eff3ad0 R14: ffff88801eff3ad8 R15: 0000000000000010 ip_finish_output2+0x73c/0x1fb0 ip_do_fragment+0x1e14/0x24e0 ip_fragment.constprop.0+0x16b/0x240 __ip_finish_output.part.0+0x883/0xd10 ip_output+0x2ec/0x8e0 ip_push_pending_frames+0x30b/0x5c0 raw_sendmsg+0x11b0/0x2b40 inet_sendmsg+0x121/0x150 sock_sendmsg+0x140/0x190 ____sys_sendmsg+0x744/0x930 ___sys_sendmsg+0x110/0x1b0 __sys_sendmsg+0xf7/0x1d0 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fb6c0c1cb19 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:00007fb6be192188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fb6c0d2ff60 RCX: 00007fb6c0c1cb19 RDX: 0000000000000000 RSI: 0000000020000780 RDI: 0000000000000006 RBP: 00007fb6c0c76f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdc0108d6f R14: 00007fb6be192300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 5178 Comm: syz-executor.6 Not tainted 6.2.0-rc1-next-20221226 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:write_comp_data+0x32/0x90 Code: f8 65 8b 05 08 b1 ba 7e 89 c6 81 e6 00 01 00 00 65 48 8b 14 25 00 89 03 00 a9 00 01 ff 00 74 0e 85 f6 74 59 8b 82 0c 14 00 00 <85> c0 74 4f 8b 82 e8 13 00 00 83 f8 03 75 44 48 8b 82 f0 13 00 00 RSP: 0018:ffff88806ce09330 EFLAGS: 00000006 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff814df3e2 RDX: ffff888048191ac0 RSI: 0000000000000100 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000104 R13: 0000000000000001 R14: ffffe8ffffc21c40 R15: ffffe8ffffc4b000 FS: 00007f323c6f0700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000557b09f0c010 CR3: 000000003716e000 CR4: 0000000000350ef0 Call Trace: tracing_gen_ctx_irq_test+0x52/0x1b0 perf_trace_buf_update+0x37/0x190 perf_tp_event+0x130/0xc90 perf_trace_run_bpf_submit+0xf3/0x1c0 perf_trace_preemptirq_template+0x272/0x410 trace_hardirqs_on+0xe3/0x130 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:__read_once_word_nocheck+0x3/0x10 Code: e9 8b fd ff ff e8 3d 4b 6a 00 e9 43 fd ff ff 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 07 cc 34 2e 03 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 RSP: 0018:ffff88806ce09818 EFLAGS: 00000202 RAX: ffffffff843ead7e RBX: 0000000000000001 RCX: 0000000000000001 RDX: ffff88803499f401 RSI: ffff88803499f448 RDI: ffff88803499f4c8 RBP: ffff88806ce098f8 R08: ffffffff8646d164 R09: ffffffff8646d168 R10: ffff88806ce09ff8 R11: 0000000000038001 R12: ffff88806ce098e1 R13: ffff88806ce09900 R14: ffff88806ce098a0 R15: ffffffff8646d169 unwind_next_frame+0xaf4/0x2130 arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 __kasan_record_aux_stack+0x95/0xb0 __call_rcu_common.constprop.0+0x6a/0x9f0 kmem_cache_free+0xc1/0x610 kfree_skbmem+0xef/0x1b0 consume_skb+0xd8/0x170 mac80211_hwsim_tx_frame+0x1f6/0x2a0 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:check_preemption_disabled+0x3e/0x180 Code: 44 8b 25 b1 db c4 7b 65 8b 1d a6 db c4 7b 81 e3 ff ff ff 7f 31 ff 89 de 0f 1f 44 00 00 85 db 74 15 0f 1f 44 00 00 44 89 e0 5b <5d> 41 5c 41 5d 41 5e e9 fa 2b 02 00 0f 1f 44 00 00 9c 5b 81 e3 00 RSP: 0018:ffff88803499f4f0 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 1ffffffff0a55118 RDX: 0000000000000001 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffffffff849effa0 R08: 0000000000000000 R09: ffffffff85d09417 R10: fffffbfff0ba1282 R11: 0000000000000001 R12: 0000000000000000 R13: ffffffff849eff60 R14: ffff88800f3b02dc R15: ffffffff820834b0 rcu_lockdep_current_cpu_online+0x39/0x140 rcu_read_lock_sched_held+0x2d/0x80 lock_release+0x54b/0x750 blk_mq_free_request+0x361/0x500 __scsi_execute+0x478/0x650 sr_check_events+0x182/0xa40 cdrom_check_events+0x68/0x110 sr_block_check_events+0xc3/0x100 disk_check_events+0xc7/0x420 bdev_check_media_change+0x130/0x320 sr_block_open+0x112/0x2b0 blkdev_get_whole+0x9b/0x2d0 blkdev_get_by_dev.part.0+0x5e4/0xb80 blkdev_get_by_dev+0x73/0x90 blkdev_open+0x140/0x2d0 do_dentry_open+0x6ca/0x12b0 path_openat+0x1847/0x29b0 do_filp_open+0x1ba/0x410 do_sys_openat2+0x171/0x4c0 __x64_sys_openat+0x143/0x200 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f323f17ab19 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:00007f323c6f0188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f323f28df60 RCX: 00007f323f17ab19 RDX: 0000000000000800 RSI: 0000000020000380 RDI: ffffffffffffff9c RBP: 00007f323f1d4f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff528a5cbf R14: 00007f323c6f0300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: 72 4d jb 0x4f 2: 4c 89 e0 mov %r12,%rax 5: 48 29 e8 sub %rbp,%rax 8: 48 89 c2 mov %rax,%rdx b: 48 c1 e8 3f shr $0x3f,%rax f: 48 c1 fa 02 sar $0x2,%rdx 13: 48 01 d0 add %rdx,%rax 16: 48 d1 f8 sar %rax 19: 48 8d 5c 85 00 lea 0x0(%rbp,%rax,4),%rbx 1e: 48 89 d8 mov %rbx,%rax 21: 48 c1 e8 03 shr $0x3,%rax 25: 42 0f b6 14 38 movzbl (%rax,%r15,1),%edx * 2a: 48 89 d8 mov %rbx,%rax <-- trapping instruction 2d: 83 e0 07 and $0x7,%eax 30: 83 c0 03 add $0x3,%eax 33: 38 d0 cmp %dl,%al 35: 7c 04 jl 0x3b 37: 84 d2 test %dl,%dl 39: 75 50 jne 0x8b 3b: 48 63 03 movslq (%rbx),%rax 3e: 48 rex.W 3f: 01 .byte 0x1