WARNING: The mand mount option has been deprecated and
         and is ignored by this kernel. Remove the mand
         option from the mount to silence this warning.
=======================================================
watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz.3.20:4063]
Modules linked in:
irq event stamp: 4438161
hardirqs last  enabled at (4438160): [<ffffffffaa0c5acb>] irqentry_exit+0x3b/0x90 kernel/entry/common.c:357
hardirqs last disabled at (4438161): [<ffffffffaa0c444f>] sysvec_apic_timer_interrupt+0xf/0x80 arch/x86/kernel/apic/apic.c:1049
softirqs last  enabled at (2005318): [<ffffffffa6bb358c>] softirq_handle_end kernel/softirq.c:425 [inline]
softirqs last  enabled at (2005318): [<ffffffffa6bb358c>] handle_softirqs+0x50c/0x770 kernel/softirq.c:607
softirqs last disabled at (2005321): [<ffffffffa6bb3924>] __do_softirq kernel/softirq.c:613 [inline]
softirqs last disabled at (2005321): [<ffffffffa6bb3924>] invoke_softirq kernel/softirq.c:453 [inline]
softirqs last disabled at (2005321): [<ffffffffa6bb3924>] __irq_exit_rcu+0xc4/0x100 kernel/softirq.c:680
CPU: 0 UID: 0 PID: 4063 Comm: syz.3.20 Not tainted 6.15.0 #1 PREEMPT(voluntary)
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014
RIP: 0010:lock_acquire+0x5b/0x2f0 kernel/locking/lockdep.c:5870
Code: 30 31 c0 66 90 65 8b 05 77 86 fe 05 89 c0 48 0f a3 05 49 78 cc 04 0f 82 3a 01 00 00 8b 35 c1 81 cc 04 85 f6 0f 85 84 00 00 00 <48> 8b 44 24 30 65 48 2b 05 20 86 fe 05 0f 85 6e 02 00 00 48 83 c4
RSP: 0018:ffff8881f6c08400 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 0000000000000000 RCX: f38912d922349e9c
RDX: 00000000a310d406 RSI: 00000000c28452b3 RDI: 00000000659526b9
RBP: ffffffffab21c040 R08: 0000000000000002 R09: 0000000000000001
R10: 0000000000000000 R11: 000000000001e4b4 R12: 0000000000000002
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000200
FS:  0000000000000000(0000) GS:ffff888249f23000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000562d5441f610 CR3: 000000011f88b006 CR4: 0000000000770ef0
PKRU: 80000000
Call Trace:
 <IRQ>
 rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 rcu_read_lock include/linux/rcupdate.h:841 [inline]
 class_rcu_constructor include/linux/rcupdate.h:1155 [inline]
 unwind_next_frame+0xcd/0x2540 arch/x86/kernel/unwind_orc.c:479
 arch_stack_walk+0x86/0xf0 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
 kasan_save_stack+0x24/0x50 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 kasan_save_free_info+0x3a/0x60 mm/kasan/generic.c:576
 poison_slab_object mm/kasan/common.c:247 [inline]
 __kasan_slab_free+0x38/0x50 mm/kasan/common.c:264
 kasan_slab_free include/linux/kasan.h:233 [inline]
 slab_free_hook mm/slub.c:2380 [inline]
 slab_free mm/slub.c:4642 [inline]
 kmem_cache_free+0x2a1/0x470 mm/slub.c:4744
 skb_kfree_head net/core/skbuff.c:1056 [inline]
 skb_kfree_head net/core/skbuff.c:1053 [inline]
 skb_free_head net/core/skbuff.c:1070 [inline]
 skb_release_data+0x831/0x9d0 net/core/skbuff.c:1097
 skb_release_all net/core/skbuff.c:1162 [inline]
 __kfree_skb net/core/skbuff.c:1176 [inline]
 sk_skb_reason_drop+0x101/0x1b0 net/core/skbuff.c:1214
 kfree_skb_reason include/linux/skbuff.h:1279 [inline]
 kfree_skb include/linux/skbuff.h:1288 [inline]
 ip6_mc_input+0x3d4/0x4d0 net/ipv6/ip6_input.c:591
 dst_input include/net/dst.h:469 [inline]
 dst_input include/net/dst.h:467 [inline]
 ip6_sublist_rcv_finish+0x31c/0x570 net/ipv6/ip6_input.c:88
 ip6_list_rcv_finish.constprop.0+0x5c0/0x9a0 net/ipv6/ip6_input.c:145
 ip6_sublist_rcv net/ipv6/ip6_input.c:319 [inline]
 ipv6_list_rcv+0x2c7/0x3f0 net/ipv6/ip6_input.c:353
 __netif_receive_skb_list_ptype net/core/dev.c:5930 [inline]
 __netif_receive_skb_list_core+0x4c1/0x8d0 net/core/dev.c:5977
 __netif_receive_skb_list net/core/dev.c:6029 [inline]
 netif_receive_skb_list_internal+0x6c1/0xc90 net/core/dev.c:6120
 netif_receive_skb_list net/core/dev.c:6172 [inline]
 netif_receive_skb_list+0x4f/0x400 net/core/dev.c:6162
 ieee80211_rx_napi+0x356/0x3c0 net/mac80211/rx.c:5443
 ieee80211_rx include/net/mac80211.h:5179 [inline]
 ieee80211_handle_queued_frames+0xd9/0x130 net/mac80211/main.c:441
 tasklet_action_common+0x235/0x3b0 kernel/softirq.c:829
 handle_softirqs+0x1b1/0x770 kernel/softirq.c:579
 __do_softirq kernel/softirq.c:613 [inline]
 invoke_softirq kernel/softirq.c:453 [inline]
 __irq_exit_rcu+0xc4/0x100 kernel/softirq.c:680
 irq_exit_rcu+0x9/0x20 kernel/softirq.c:696
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0x70/0x80 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:103 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:129 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:161 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x88/0x1b0 mm/kasan/generic.c:189
Code: 00 00 00 00 00 fc ff df 4d 89 d1 48 c1 ed 03 49 c1 e9 03 48 01 c5 49 01 c1 48 89 e8 49 8d 59 01 48 89 da 48 29 ea 48 83 fa 10 <0f> 8e bd 00 00 00 41 89 eb 41 83 e3 07 75 7d 48 85 d2 4c 8d 5a 07
RSP: 0018:ffff88811ebc7238 EFLAGS: 00000283
RAX: fffff940009ab966 RBX: fffff940009ab967 RCX: ffffffffa70fa105
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffea0004d5cb34
RBP: fffff940009ab966 R08: 0000000000000001 R09: fffff940009ab966
R10: ffffea0004d5cb37 R11: ffff8881f6c37468 R12: ffff88811ebc73cc
R13: ffff88811ebc7420 R14: dffffc0000000000 R15: ffff88811ebc74c0
 instrument_atomic_read_write include/linux/instrumented.h:96 [inline]
 atomic_sub_and_test include/linux/atomic/atomic-instrumented.h:1365 [inline]
 page_ref_sub_and_test include/linux/page_ref.h:177 [inline]
 folio_ref_sub_and_test include/linux/page_ref.h:186 [inline]
 folios_put_refs+0x215/0x480 mm/swap.c:964
 free_pages_and_swap_cache+0x21b/0x410 mm/swap_state.c:267
 __tlb_batch_free_encoded_pages+0xdc/0x270 mm/mmu_gather.c:136
 tlb_batch_pages_flush mm/mmu_gather.c:149 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:397 [inline]
 tlb_flush_mmu+0xea/0x5b0 mm/mmu_gather.c:404
 zap_pte_range mm/memory.c:1770 [inline]
 zap_pmd_range mm/memory.c:1823 [inline]
 zap_pud_range mm/memory.c:1852 [inline]
 zap_p4d_range mm/memory.c:1873 [inline]
 unmap_page_range+0x1b17/0x3b00 mm/memory.c:1894
 unmap_single_vma+0x194/0x2a0 mm/memory.c:1940
 unmap_vmas+0x1f0/0x450 mm/memory.c:1984
 exit_mmap+0x181/0xaa0 mm/mmap.c:1284
 __mmput kernel/fork.c:1380 [inline]
 mmput+0xd5/0x390 kernel/fork.c:1402
 exit_mm kernel/exit.c:589 [inline]
 do_exit+0x9bc/0x29b0 kernel/exit.c:940
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1102
 get_signal+0x2315/0x2340 kernel/signal.c:3034
 arch_do_signal_or_restart+0x80/0x780 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x123/0x1e0 kernel/entry/common.c:218
 do_syscall_64+0xcc/0x1d0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb0ce33c9ad
Code: Unable to access opcode bytes at 0x7fb0ce33c983.
RSP: 002b:00007fb0cc986fa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: 0000000000000008 RBX: 00007fb0ce575fa0 RCX: 00007fb0ce33c9ad
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 000000000000000a
RBP: 00007fb0ce3d6e27 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fb0ce2d8b20 R15: 00007fb0cc967000
 </TASK>
Sending NMI from CPU 0 to CPUs 1-7:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 6238 Comm: modprobe Not tainted 6.15.0 #1 PREEMPT(voluntary)
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x80 kernel/kcov.c:210
Code: 5d 41 5c 41 5d e9 fb a6 9d ff 48 c7 c0 f4 ff ff ff eb 92 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 48 8b 0c 24 65 48 8b 15 d8 35 dd 05 65 8b 05 e9 35 dd
RSP: 0000:ffff8881844a7a20 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffff8881003fa440 RCX: ffffffffa70f86d9
RDX: ffff888157ba3800 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffea0004832d00 R08: 0000000000000000 R09: fffff940009065a0
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8881f6cb1500 R14: 0000000000000001 R15: ffff8881844a7ac0
FS:  00007f7fe67f9540(0000) GS:ffff888249fa3000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7fe6ce2000 CR3: 0000000157b83004 CR4: 0000000000770ef0
PKRU: 55555554
Call Trace:
 <TASK>
 instrument_atomic_read include/linux/instrumented.h:68 [inline]
 _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
 folio_test_lru include/linux/page-flags.h:554 [inline]
 lru_add+0xb1/0xc80 mm/swap.c:123
 folio_batch_move_lru+0x105/0x310 mm/swap.c:168
 __folio_batch_add_and_move+0x2c0/0x960 mm/swap.c:196
 folio_add_lru_vma+0xa4/0xf0 mm/swap.c:524
 set_pte_range+0x352/0x580 mm/memory.c:5254
 finish_fault+0x66e/0xfd0 mm/memory.c:5382
 do_cow_fault mm/memory.c:5560 [inline]
 do_fault mm/memory.c:5654 [inline]
 do_pte_missing mm/memory.c:4160 [inline]
 handle_pte_fault mm/memory.c:5997 [inline]
 __handle_mm_fault+0x1ad9/0x2e50 mm/memory.c:6140
 handle_mm_fault+0x2d8/0x750 mm/memory.c:6309
 do_user_addr_fault+0x4fa/0xeb0 arch/x86/mm/fault.c:1337
 handle_page_fault arch/x86/mm/fault.c:1480 [inline]
 exc_page_fault+0x9c/0x1a0 arch/x86/mm/fault.c:1538
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f7fe6d2c89b
Code: 48 8d 3d c8 4c 01 00 4a 63 04 a7 48 01 f8 ff e0 0f 1f 80 00 00 00 00 48 8b 45 88 4c 8b 50 10 48 8b 85 68 ff ff ff 4c 03 53 10 <4c> 89 10 66 90 48 83 c3 18 48 39 9d 78 ff ff ff 0f 87 5f fe ff ff
RSP: 002b:00007ffd9436a6f0 EFLAGS: 00010206
RAX: 00007f7fe6ce2000 RBX: 00007f7fe6a76b70 RCX: 00007f7fe6a0b2a0
RDX: 0000000000000002 RSI: 000000000000000d RDI: 00007f7fe6d41540
RBP: 00007ffd9436a7f0 R08: 0000000000000000 R09: 00007f7fe6a0b2a0
R10: 00007f7fe6a97c00 R11: 00007f7fe6d12510 R12: 0000000000000007
R13: 000007cf00000007 R14: 00007f7fe6a0b2a0 R15: 00007f7fe6d12510
 </TASK>
NMI backtrace for cpu 6
CPU: 6 UID: 0 PID: 6236 Comm: modprobe Not tainted 6.15.0 #1 PREEMPT(voluntary)
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014
RIP: 0010:trace_lock_release include/trace/events/lock.h:69 [inline]
RIP: 0010:lock_release+0x3c/0x290 kernel/locking/lockdep.c:5877
Code: fd 48 83 ec 18 65 48 8b 05 b9 89 fe 05 48 89 44 24 10 31 c0 e9 47 01 00 00 65 8b 05 d2 89 fe 05 89 c0 48 0f a3 05 a4 7b cc 04 <0f> 82 80 01 00 00 8b 3d 1c 85 cc 04 85 ff 0f 84 fd 00 00 00 65 8b
RSP: 0018:ffff888157d275d0 EFLAGS: 00000287
RAX: 0000000000000006 RBX: ffff888157d27f18 RCX: 000000000000000d
RDX: 1ffffd1ffffa47d0 RSI: ffffffffab21c040 RDI: ffffffffab1230a8
RBP: ffffffffab21c040 R08: ffffffffaa28f3a0 R09: ffff888157d276c8
R10: 0000000000038f09 R11: 0000000000008344 R12: ffffffffa6b4f8b2
R13: ffff888157d276d0 R14: ffff888157d27ef0 R15: ffff888157d27688
FS:  0000000000000000(0000) GS:ffff88824a223000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f056b60f6f4 CR3: 000000015715f002 CR4: 0000000000770ef0
PKRU: 55555554
Call Trace:
 <TASK>
 rcu_lock_release include/linux/rcupdate.h:341 [inline]
 rcu_read_unlock include/linux/rcupdate.h:871 [inline]
 class_rcu_destructor include/linux/rcupdate.h:1155 [inline]
 unwind_next_frame+0x3b7/0x2540 arch/x86/kernel/unwind_orc.c:479
 arch_stack_walk+0x86/0xf0 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
 kasan_save_stack+0x24/0x50 mm/kasan/common.c:47
 kasan_record_aux_stack+0x89/0xa0 mm/kasan/generic.c:548
 slab_free_hook mm/slub.c:2341 [inline]
 slab_free mm/slub.c:4642 [inline]
 kmem_cache_free+0x145/0x470 mm/slub.c:4744
 anon_vma_free mm/rmap.c:137 [inline]
 __put_anon_vma+0x114/0x390 mm/rmap.c:2756
 put_anon_vma include/linux/rmap.h:117 [inline]
 unlink_anon_vmas+0x4ae/0x740 mm/rmap.c:444
 free_pgtables+0xc7/0x790 mm/memory.c:370
 exit_mmap+0x39c/0xaa0 mm/mmap.c:1295
 __mmput kernel/fork.c:1380 [inline]
 mmput+0xd5/0x390 kernel/fork.c:1402
 exit_mm kernel/exit.c:589 [inline]
 do_exit+0x9bc/0x29b0 kernel/exit.c:940
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1102
 __do_sys_exit_group kernel/exit.c:1113 [inline]
 __se_sys_exit_group kernel/exit.c:1111 [inline]
 __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1111
 x64_sys_call+0xf76/0x18a0 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xbf/0x1d0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f056b1f4bd9
Code: Unable to access opcode bytes at 0x7f056b1f4baf.
RSP: 002b:00007fffbe8835a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f056b2f7880 RCX: 00007f056b1f4bd9
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
RBP: 0000000000000001 R08: ffffffffffffff80 R09: 0000000000000001
R10: 0000000000000004 R11: 0000000000000246 R12: 00007f056b2f7880
R13: 0000000000000001 R14: 00007f056b2fce08 R15: 0000000000000000
 </TASK>
NMI backtrace for cpu 7
CPU: 7 UID: 0 PID: 52 Comm: ksoftirqd/7 Not tainted 6.15.0 #1 PREEMPT(voluntary)
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014
RIP: 0010:lockdep_recursion_finish kernel/locking/lockdep.c:472 [inline]
RIP: 0010:lockdep_hardirqs_on_prepare+0xc3/0x1a0 kernel/locking/lockdep.c:4412
Code: 0a 00 00 65 ff 05 05 e6 fe 05 e8 c8 fe ff ff 85 c0 74 0a 8b 85 38 0a 00 00 85 c0 75 18 b8 ff ff ff ff 65 0f c1 05 e5 e5 fe 05 <83> f8 01 75 15 5d e9 1d 1b bf ff be 06 00 00 00 48 89 ef e8 95 fe
RSP: 0018:ffff888100cffdb0 EFLAGS: 00000057
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffffa6fab4c6
RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff888100ce3800
RBP: ffff888100ce3800 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffffab9dc217 R11: 0000000000000001 R12: 0000000000000100
R13: 0000000000000006 R14: 0000000000000040 R15: 0000000000000006
FS:  0000000000000000(0000) GS:ffff88824a2a3000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8541b676f4 CR3: 0000000146d8c002 CR4: 0000000000770ef0
PKRU: 55555554
Call Trace:
 <TASK>
 trace_hardirqs_on+0x36/0x40 kernel/trace/trace_preemptirq.c:78
 handle_softirqs+0x16e/0x770 kernel/softirq.c:563
 run_ksoftirqd kernel/softirq.c:968 [inline]
 run_ksoftirqd+0x2e/0x60 kernel/softirq.c:960
 smpboot_thread_fn+0x41f/0x9e0 kernel/smpboot.c:164
 kthread+0x3c8/0x740 kernel/kthread.c:464
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
NMI backtrace for cpu 5
CPU: 5 UID: 0 PID: 6232 Comm: modprobe Not tainted 6.15.0 #1 PREEMPT(voluntary)
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:220 [inline]
RIP: 0010:unwind_next_frame+0x2c5/0x2540 arch/x86/kernel/unwind_orc.c:494
Code: 44 8b 54 24 18 48 8b 4c 24 10 44 89 d8 8b 14 95 44 74 1d ac 48 8d 3c 40 4c 8d 84 3f 00 25 d3 ab 83 c2 01 49 81 f8 42 74 1d ac <0f> 83 67 08 00 00 89 d7 48 8d 3c 7f 48 8d bc 3f 00 25 d3 ab 48 81
RSP: 0018:ffff8881580bf780 EFLAGS: 00000287
RAX: 000000000001170e RBX: 0000000000000001 RCX: ffffffffa6db87f6
RDX: 000000000001171a RSI: 0000000000005b87 RDI: 000000000003452a
RBP: ffff8881580bf848 R08: ffffffffabd9af54 R09: 0000000000000001
R10: 0000000000038f09 R11: 000000000001170e R12: ffff8881580bf850
R13: ffff8881580bf838 R14: ffff8881580bf831 R15: ffff8881580bf7f0
FS:  0000000000000000(0000) GS:ffff88824a1a3000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa645c6e6f4 CR3: 0000000163a88003 CR4: 0000000000770ef0
PKRU: 55555554
Call Trace:
 <TASK>
 arch_stack_walk+0x86/0xf0 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
 kasan_save_stack+0x24/0x50 mm/kasan/common.c:47
 kasan_record_aux_stack+0x89/0xa0 mm/kasan/generic.c:548
 __call_rcu_common.constprop.0+0x67/0x950 kernel/rcu/tree.c:3082
 kmemleak_free_recursive include/linux/kmemleak.h:49 [inline]
 slab_free_hook mm/slub.c:2305 [inline]
 slab_free mm/slub.c:4642 [inline]
 kmem_cache_free+0x2ed/0x470 mm/slub.c:4744
 exit_mmap+0x47f/0xaa0 mm/mmap.c:1309
 __mmput kernel/fork.c:1380 [inline]
 mmput+0xd5/0x390 kernel/fork.c:1402
 exit_mm kernel/exit.c:589 [inline]
 do_exit+0x9bc/0x29b0 kernel/exit.c:940
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1102
 __do_sys_exit_group kernel/exit.c:1113 [inline]
 __se_sys_exit_group kernel/exit.c:1111 [inline]
 __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1111
 x64_sys_call+0xf76/0x18a0 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xbf/0x1d0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa645853bd9
Code: Unable to access opcode bytes at 0x7fa645853baf.
RSP: 002b:00007fff72123b88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007fa645956880 RCX: 00007fa645853bd9
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
RBP: 0000000000000001 R08: ffffffffffffff80 R09: 0000000000000001
R10: 0000000000000004 R11: 0000000000000246 R12: 00007fa645956880
R13: 0000000000000001 R14: 00007fa64595be08 R15: 0000000000000000
 </TASK>
NMI backtrace for cpu 4
CPU: 4 UID: 0 PID: 6233 Comm: modprobe Not tainted 6.15.0 #1 PREEMPT(voluntary)
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014
RIP: 0010:unwind_next_frame+0xf4/0x2540 arch/x86/kernel/unwind_orc.c:482
Code: 53 1c 00 e8 ee 5d 57 03 5a 85 c0 0f 85 b5 09 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8d 67 60 4c 89 e2 48 c1 ea 03 80 3c 02 00 <0f> 85 67 1a 00 00 4d 8b 77 60 4d 85 f6 74 36 49 8d be 88 00 00 00
RSP: 0018:ffff88818453f958 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 4b952e4da9267483
RDX: 1ffff110308a7f45 RSI: 000000005e406224 RDI: ffff8881f6e31450
RBP: ffff88818453fa20 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: 00000000000264f2 R12: ffff88818453fa28
R13: ffff88818453fa10 R14: ffff888184433800 R15: ffff88818453f9c8
FS:  00007f71405fb540(0000) GS:ffff88824a123000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000562c59fb34b8 CR3: 00000001841ab004 CR4: 0000000000770ef0
PKRU: 55555554
Call Trace:
 <TASK>
 arch_stack_walk+0x86/0xf0 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
 kasan_save_stack+0x24/0x50 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 kasan_save_free_info+0x3a/0x60 mm/kasan/generic.c:576
 poison_slab_object mm/kasan/common.c:247 [inline]
 __kasan_slab_free+0x38/0x50 mm/kasan/common.c:264
 kasan_slab_free include/linux/kasan.h:233 [inline]
 slab_free_hook mm/slub.c:2380 [inline]
 slab_free mm/slub.c:4642 [inline]
 kfree+0x281/0x470 mm/slub.c:4841
 free_rb_tree_fname+0x7c/0xe0 fs/ext4/dir.c:439
 ext4_htree_free_dir_info fs/ext4/dir.c:458 [inline]
 ext4_release_dir+0x3f/0x60 fs/ext4/dir.c:642
 __fput+0x402/0xb50 fs/file_table.c:465
 fput_close_sync+0x10f/0x230 fs/file_table.c:570
 __do_sys_close fs/open.c:1581 [inline]
 __se_sys_close fs/open.c:1566 [inline]
 __x64_sys_close+0x8f/0x120 fs/open.c:1566
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xbf/0x1d0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f71407142e7
Code: 44 00 00 48 8b 15 a9 db 0d 00 f7 d8 64 89 02 b8 ff ff ff ff eb bc 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 8b 15 79 db 0d 00 f7 d8 64 89 02 b8
RSP: 002b:00007fff31c76fb8 EFLAGS: 00000206 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 00007fff31c77060 RCX: 00007f71407142e7
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000562c589d7c39 R08: 0000000000000000 R09: 00007f71407f2be0
R10: 0000000000000076 R11: 0000000000000206 R12: 0000562c59fab480
R13: 0000562c59fab4db R14: 00007fff31c77050 R15: 0000562c59fab310
 </TASK>
NMI backtrace for cpu 3
CPU: 3 UID: 0 PID: 6239 Comm: modprobe Not tainted 6.15.0 #1 PREEMPT(voluntary)
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014
RIP: 0010:lock_is_held_type+0x2f/0x120 kernel/locking/lockdep.c:5923
Code: 0d fa 78 91 01 41 b8 ff ff ff ff 85 c9 0f 84 dd 00 00 00 65 8b 05 19 b9 c3 02 85 c0 0f 85 ce 00 00 00 41 57 41 56 41 55 41 54 <55> 53 65 4c 8b 25 4f 7d c3 02 48 83 ec 08 41 8b 94 24 54 0a 00 00
RSP: 0000:ffff888184637aa8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000001
RDX: ffff888184055400 RSI: 00000000ffffffff RDI: ffff88810070c010
RBP: ffff888184637c50 R08: 00000000ffffffff R09: fffff94000b15ebe
R10: 0000000000000001 R11: 0000000000000000 R12: ffffea00058af580
R13: 0000000000000020 R14: ffff888165011600 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff88824a0a3000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4466f06d70 CR3: 0000000181d10001 CR4: 0000000000770ef0
PKRU: 55555554
Call Trace:
 <TASK>
 lock_is_held include/linux/lockdep.h:249 [inline]
 xa_entry include/linux/xarray.h:1220 [inline]
 xas_next_entry+0x293/0x3a0 include/linux/xarray.h:1725
 next_uptodate_folio+0x32/0x420 mm/filemap.c:3553
 filemap_map_pages+0x5c5/0x12f0 mm/filemap.c:3746
 do_fault_around mm/memory.c:5476 [inline]
 do_read_fault mm/memory.c:5509 [inline]
 do_fault mm/memory.c:5652 [inline]
 do_pte_missing mm/memory.c:4160 [inline]
 handle_pte_fault mm/memory.c:5997 [inline]
 __handle_mm_fault+0x1f62/0x2e50 mm/memory.c:6140
 handle_mm_fault+0x2d8/0x750 mm/memory.c:6309
 do_user_addr_fault+0x4fa/0xeb0 arch/x86/mm/fault.c:1337
 handle_page_fault arch/x86/mm/fault.c:1480 [inline]
 exc_page_fault+0x9c/0x1a0 arch/x86/mm/fault.c:1538
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f446740a044
Code: 00 e9 4a ff ff ff 66 0f 6f 0c 0e 66 0f 73 d8 0a 66 0f 73 db 0a e9 3c 06 00 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 66 0f ef c0 <66> 0f 6f 17 66 0f 6f 0e 66 0f 74 c1 66 0f 73 fa 05 66 0f 74 d1 66
RSP: 002b:00007ffd1958efd8 EFLAGS: 00010216
RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000006
RDX: 000000000000ffff RSI: 00007f44673b8ca0 RDI: 00007f4466f06d70
RBP: 0000000000000000 R08: 000000000000ffff R09: ffffffffffffb098
R10: 00007f446740a040 R11: 0000000000000202 R12: 00007f44673df000
R13: 00007f44673b8ca6 R14: 00007f4467418060 R15: 00007f44673dfa20
 </TASK>
NMI backtrace for cpu 2
CPU: 2 UID: 0 PID: 6237 Comm: modprobe Not tainted 6.15.0 #1 PREEMPT(voluntary)
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014
RIP: 0010:mark_usage kernel/locking/lockdep.c:4667 [inline]
RIP: 0010:__lock_acquire+0x45b/0x1af0 kernel/locking/lockdep.c:5189
Code: 0f 84 62 fc ff ff 8b 83 38 0a 00 00 4c 8b 4c 24 08 85 c0 74 1d ba 06 00 00 00 4c 89 e6 48 89 df e8 0a f2 ff ff 4c 8b 4c 24 08 <85> c0 0f 84 36 fc ff ff ba 08 00 00 00 4c 89 e6 48 89 df 4c 89 4c
RSP: 0018:ffff888184607b90 EFLAGS: 00000082
RAX: 0000000000000001 RBX: ffff888184039c00 RCX: 0000000000000040
RDX: 0000000000000006 RSI: ffff88818403a680 RDI: ffff888184039c00
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000081
R10: 0000000000000001 R11: 0000000000000000 R12: ffff88818403a680
R13: 0000000000000001 R14: 0000000000000003 R15: ffff88818403a658
FS:  00007fafd8dae540(0000) GS:ffff88824a023000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055e6ea4614b8 CR3: 000000018384a006 CR4: 0000000000770ef0
PKRU: 55555554
Call Trace:
 <TASK>
 lock_acquire kernel/locking/lockdep.c:5866 [inline]
 lock_acquire+0x15e/0x2f0 kernel/locking/lockdep.c:5823
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x2b/0x40 kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:351 [inline]
 fast_dput fs/dcache.c:818 [inline]
 dput.part.0+0x747/0x930 fs/dcache.c:896
 dput+0x1f/0x30 fs/dcache.c:892
 path_put+0x31/0x70 fs/namei.c:626
 vfs_statx+0x2c5/0x410 fs/stat.c:354
 vfs_fstatat fs/stat.c:372 [inline]
 vfs_stat include/linux/fs.h:3503 [inline]
 __do_sys_newstat+0xa0/0x130 fs/stat.c:509
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xbf/0x1d0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fafd8ec18e6
Code: 00 00 75 05 48 83 c4 18 c3 e8 46 0c 02 00 66 0f 1f 44 00 00 41 89 f8 48 89 f7 48 89 d6 41 83 f8 01 77 29 b8 04 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 02 c3 90 48 8b 15 79 35 0e 00 f7 d8 64 89 02
RSP: 002b:00007ffe9d7a6ae8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00007ffe9d7a6b90 RCX: 00007fafd8ec18e6
RDX: 00007ffe9d7a6b90 RSI: 00007ffe9d7a6b90 RDI: 000055e6e906ec59
RBP: 000055e6e906ec59 R08: 0000000000000001 R09: 00007fafd8fa5be0
R10: 0000000000000076 R11: 0000000000000246 R12: 0000000000000002
R13: 000055e6ea4594db R14: 00007ffe9d7a6b80 R15: 000055e6ea459310
 </TASK>
wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50