------------[ cut here ]------------
VFS: brelse: Trying to free free buffer
WARNING: CPU: 0 PID: 3974 at fs/buffer.c:1145 __brelse fs/buffer.c:1145 [inline]
WARNING: CPU: 0 PID: 3974 at fs/buffer.c:1145 brelse include/linux/buffer_head.h:290 [inline]
WARNING: CPU: 0 PID: 3974 at fs/buffer.c:1145 __invalidate_bh_lrus fs/buffer.c:1391 [inline]
WARNING: CPU: 0 PID: 3974 at fs/buffer.c:1145 invalidate_bh_lru+0xf6/0x160 fs/buffer.c:1404
Modules linked in:
CPU: 0 PID: 3974 Comm: syz-executor.0 Not tainted 5.18.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
RIP: 0010:__brelse fs/buffer.c:1145 [inline]
RIP: 0010:brelse include/linux/buffer_head.h:290 [inline]
RIP: 0010:__invalidate_bh_lrus fs/buffer.c:1391 [inline]
RIP: 0010:invalidate_bh_lru+0xf6/0x160 fs/buffer.c:1404
Code: 70 5a e7 ff f0 41 ff 4d 00 42 80 7c 3d 00 00 74 81 4c 89 f7 e8 1b 59 e7 ff e9 74 ff ff ff 48 c7 c7 40 35 b6 89 e8 8a 95 75 ff <0f> 0b 42 80 7c 3d 00 00 75 dd e9 59 ff ff ff 44 89 e9 80 e1 07 80
RSP: 0018:ffffc90000007f38 EFLAGS: 00010046
RAX: 5ba7a9f27d3d6900 RBX: 0000000000000000 RCX: 0000000000010002
RDX: 0000000000000001 RSI: 0000000000000004 RDI: 0000000000000001
RBP: 1ffff11017386d9f R08: dffffc0000000000 R09: ffffed1017385124
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880b9c36cf8
R13: ffff888070fbf888 R14: ffff8880b9c36cf8 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f599dba8000 CR3: 000000007f32e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 flush_smp_call_function_queue+0x219/0xae0 kernel/smp.c:628
 __sysvec_call_function_single+0xdf/0x360 arch/x86/kernel/smp.c:248
 sysvec_call_function_single+0x8d/0xb0 arch/x86/kernel/smp.c:243
 </IRQ>
 <TASK>
 asm_sysvec_call_function_single+0x16/0x20
RIP: 0010:unwind_get_return_address+0x29/0x90 arch/x86/kernel/unwind_orc.c:315
Code: 00 f3 0f 1e fa 41 57 41 56 53 48 89 fb 49 be 00 00 00 00 00 fc ff df 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0 75 47 83 3b 00 <74> 3a 48 83 c3 48 49 89 df 49 c1 ef 03 43 80 3c 37 00 74 08 48 89
RSP: 0018:ffffc90002cfef80 EFLAGS: 00000202
RAX: 0000000000000000 RBX: ffffc90002cfefa0 RCX: 0000000080000000
RDX: dffffc0000000000 RSI: ffffc90002cfff48 RDI: ffffc90002cfefa0
RBP: ffffc90002cff030 R08: dffffc0000000000 R09: ffffc90002cfeff0
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88801fc2ba80
R13: ffffffff81671880 R14: dffffc0000000000 R15: 0000000000000000
 arch_stack_walk+0xf7/0x140 arch/x86/kernel/stacktrace.c:26
 stack_trace_save+0x117/0x1c0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track+0x4f/0x70 mm/kasan/common.c:45
 kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:370
 ____kasan_slab_free+0x124/0x1d0 mm/kasan/common.c:366
 kasan_slab_free include/linux/kasan.h:200 [inline]
 slab_free_hook mm/slub.c:1728 [inline]
 slab_free_freelist_hook+0x12c/0x1a0 mm/slub.c:1754
 slab_free mm/slub.c:3510 [inline]
 kmem_cache_free+0xfa/0x310 mm/slub.c:3527
 pgtable_pte_page_dtor include/linux/mm.h:2336 [inline]
 ___pte_free_tlb+0x87/0x290 arch/x86/mm/pgtable.c:55
 __pte_free_tlb arch/x86/include/asm/pgalloc.h:61 [inline]
 free_pte_range mm/memory.c:232 [inline]
 free_pmd_range mm/memory.c:250 [inline]
 free_pud_range mm/memory.c:284 [inline]
 free_p4d_range mm/memory.c:318 [inline]
 free_pgd_range+0x69a/0xb70 mm/memory.c:398
 free_pgtables+0x56/0x240
 exit_mmap+0x1ac/0x480 mm/mmap.c:3141
 __mmput+0xc7/0x360 kernel/fork.c:1183
 exit_mm+0x1e8/0x2a0 kernel/exit.c:510
 do_exit+0x409/0x1b80 kernel/exit.c:782
 do_group_exit+0x109/0x2c0 kernel/exit.c:925
 get_signal+0x11d5/0x1220 kernel/signal.c:2864
 arch_do_signal_or_restart+0xb4/0x1a60 arch/x86/kernel/signal.c:867
 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:166
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:201
 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
 syscall_exit_to_user_mode+0x61/0x2a0 kernel/entry/common.c:294
 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f599da8c169
Code: Unable to access opcode bytes at RIP 0x7f599da8c13f.
RSP: 002b:00007f599e86a218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f599dbabf88 RCX: 00007f599da8c169
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f599dbabf88
RBP: 00007f599dbabf80 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f599dbabf8c
R13: 00007fff4551419f R14: 00007f599e86a300 R15: 0000000000022000
 </TASK>
----------------
Code disassembly (best guess):
   0:	00 f3                	add    %dh,%bl
   2:	0f 1e fa             	nop    %edx
   5:	41 57                	push   %r15
   7:	41 56                	push   %r14
   9:	53                   	push   %rbx
   a:	48 89 fb             	mov    %rdi,%rbx
   d:	49 be 00 00 00 00 00 	movabs $0xdffffc0000000000,%r14
  14:	fc ff df
  17:	48 89 f8             	mov    %rdi,%rax
  1a:	48 c1 e8 03          	shr    $0x3,%rax
  1e:	42 0f b6 04 30       	movzbl (%rax,%r14,1),%eax
  23:	84 c0                	test   %al,%al
  25:	75 47                	jne    0x6e
  27:	83 3b 00             	cmpl   $0x0,(%rbx)
* 2a:	74 3a                	je     0x66 <-- trapping instruction
  2c:	48 83 c3 48          	add    $0x48,%rbx
  30:	49 89 df             	mov    %rbx,%r15
  33:	49 c1 ef 03          	shr    $0x3,%r15
  37:	43 80 3c 37 00       	cmpb   $0x0,(%r15,%r14,1)
  3c:	74 08                	je     0x46
  3e:	48                   	rex.W
  3f:	89                   	.byte 0x89