watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.3:14303] Modules linked in: irq event stamp: 4950505 hardirqs last enabled at (4950504): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4950505): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (4942708): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (4942711): [] __irq_exit_rcu+0x11b/0x180 CPU: 0 PID: 14303 Comm: syz-executor.3 Not tainted 6.1.0-next-20221214 #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:ffff88806ce095f0 EFLAGS: 00000246 RAX: fffffffffb42702c RBX: ffffffff85d5bec4 RCX: ffffffff81182e7a RDX: 0000000000000000 RSI: ffffffff8605a8a0 RDI: ffffffff85d5bebc RBP: ffffffff85d5bebc R08: ffffffff8605a8a0 R09: ffffffff86466c18 R10: ffffed100d9c12e4 R11: 0000000000038001 R12: ffffffff85d5becc R13: ffffffff85d5bebc R14: ffffffff85d5bebc R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020979000 CR3: 0000000046284000 CR4: 0000000000350ef0 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/0xc10 __kmem_cache_alloc_node+0x25b/0x400 __kmalloc_node_track_caller+0x43/0xb0 __alloc_skb+0xe9/0x310 __netdev_alloc_skb+0x76/0x3e0 __ieee80211_beacon_get+0x3d9/0x1310 ieee80211_beacon_get_tim+0x99/0x4f0 mac80211_hwsim_beacon_tx+0x1d2/0xab0 __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:__sanitizer_cov_trace_pc+0xb/0x70 Code: c0 e9 0d 3e f9 02 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 65 8b 05 2d 5f ba 7e <89> c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b 14 25 00 89 03 00 a9 RSP: 0018:ffff8880380d76f8 EFLAGS: 00000246 RAX: 0000000080000001 RBX: 0000000000000002 RCX: ffffffff816d1ddb RDX: ffff88803b54d040 RSI: 0000000000000000 RDI: 0000000000000005 RBP: dffffc0000000000 R08: 0000000000000005 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88803b9108b0 R13: ffffea000100de80 R14: 0000000000000000 R15: ffff8880380d7ad8 unmap_page_range+0x20e6/0x2c10 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: 0033:0x7fe47f064b19 Code: Unable to access opcode bytes at 0x7fe47f064aef. RSP: 002b:00007fe47c5da188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: 0000000000000004 RBX: 00007fe47f177f60 RCX: 00007fe47f064b19 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000280 RBP: 00007fe47f0bef6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff0f7cb98f R14: 00007fe47c5da300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 14334 Comm: syz-executor.6 Not tainted 6.1.0-next-20221214 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__sanitizer_cov_trace_pc+0xb/0x70 Code: c0 e9 0d 3e f9 02 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 65 8b 05 2d 5f ba 7e <89> c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b 14 25 00 89 03 00 a9 RSP: 0018:ffff88806cf095a8 EFLAGS: 00000093 RAX: 0000000000010103 RBX: 000000ac6aa5e4e4 RCX: ffffffff81396499 RDX: ffff888047923580 RSI: 0000000000000100 RDI: 0000000000000006 RBP: 0000000000000002 R08: 0000000000000006 R09: 000000ac6aa5e4e4 R10: 7fffffffffffffff R11: 0000000000000001 R12: ffff888037c41300 R13: 7fffffffffffffff R14: dffffc0000000000 R15: 0000000000000000 FS: 00007ff97ce12700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000209c9000 CR3: 000000004767e000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: __hrtimer_next_event_base+0x137/0x260 hrtimer_update_next_event+0xcd/0x2a0 hrtimer_interrupt+0x321/0x770 __sysvec_apic_timer_interrupt+0x148/0x500 sysvec_apic_timer_interrupt+0x3f/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:unwind_next_frame+0x123/0x2130 Code: 00 00 41 f6 84 24 88 00 00 00 03 0f 85 b7 02 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8d 66 41 4c 89 e2 48 c1 ea 03 0f b6 04 02 <4c> 89 e2 83 e2 07 38 d0 7f 08 84 c0 0f 85 dd 07 00 00 48 89 e9 41 RSP: 0018:ffff88806cf097c8 EFLAGS: 00000216 RAX: 0000000000000000 RBX: 0000000000000002 RCX: 1ffffffff0f382f8 RDX: 1ffff1100d9e1311 RSI: ffffffff81397fd6 RDI: 0000000000000001 RBP: ffff88806cf098a0 R08: ffffffff86092f22 R09: ffffffff86092f26 R10: ffffed100d9e1316 R11: ffff88806cf09888 R12: ffff88806cf09889 R13: ffff88806cf098a8 R14: ffff88806cf09848 R15: ffff888008441c80 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+0x95/0x410 skb_release_data+0x6d8/0x810 consume_skb+0xcb/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:crc32_body+0x111/0x600 Code: 18 00 00 48 89 d9 48 c1 e9 03 42 0f b6 34 21 48 89 d9 83 e1 07 83 c1 03 40 38 f1 7c 09 40 84 f6 0f 85 90 04 00 00 89 c1 8b 1b e9 10 0f b6 c9 49 8d 8c 8d 00 14 00 00 48 89 ce 48 c1 ee 03 42 RSP: 0018:ffff88804209f2d8 EFLAGS: 00000246 RAX: 00000000e05ac349 RBX: 0000000037dc7cd6 RCX: 00000000e05ac349 RDX: 0000000000040000 RSI: 0000000000000000 RDI: ffff888017b3bfa0 RBP: 000000001107b2cf R08: 0000000000000006 R09: 0000000000000200 R10: 00000000000001f4 R11: 0000000000000000 R12: dffffc0000000000 R13: ffffffff849f0200 R14: 00000000000001f4 R15: ffff888017b3bf9c chksum_update+0x50/0xb0 crypto_shash_update+0xce/0x130 ext4_block_bitmap_csum_set+0x21f/0x3b0 ext4_mb_mark_diskspace_used+0x841/0x1640 ext4_mb_new_blocks+0x743/0x49b0 ext4_ext_map_blocks+0x1fca/0x5d40 ext4_map_blocks+0x776/0x19e0 ext4_getblk+0x604/0x7b0 ext4_bread+0x2e/0x1a0 ext4_append+0x21d/0x530 ext4_init_new_dir+0x262/0x4c0 ext4_mkdir+0x3d3/0xb20 vfs_mkdir+0x495/0x740 do_mkdirat+0x16e/0x2d0 __x64_sys_mkdir+0xf6/0x150 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7ff97f89bc27 Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 53 00 00 00 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:00007ff97ce11fa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff97f89bc27 RDX: 0000000000000000 RSI: 00000000000001ff RDI: 0000000020000100 RBP: 00007ff97ce12040 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000020000100 R14: 00007ff97ce12000 R15: 0000000000000000 ---------------- 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