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VFS: brelse: Trying to free free buffer
WARNING: CPU: 0 PID: 3635 at fs/buffer.c:1145 __brelse fs/buffer.c:1145 [inline]
WARNING: CPU: 0 PID: 3635 at fs/buffer.c:1145 brelse+0x78/0xa0 include/linux/buffer_head.h:326
Modules linked in:
CPU: 0 PID: 3635 Comm: syz-fuzzer Not tainted 6.1.0-rc1-syzkaller-00427-gd47136c28015 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
RIP: 0010:__brelse fs/buffer.c:1145 [inline]
RIP: 0010:brelse+0x78/0xa0 include/linux/buffer_head.h:326
Code: df be 04 00 00 00 e8 c7 89 e0 ff f0 ff 0b eb 1c e8 bd 99 8c ff eb 15 e8 b6 99 8c ff 48 c7 c7 40 cc 9d 8a 31 c0 e8 f8 37 54 ff <0f> 0b 5b 5d c3 89 d9 80 e1 07 80 c1 03 38 c1 7c af 48 89 df e8 cf
RSP: 0000:ffffc90003e3fe60 EFLAGS: 00010046
RAX: b9a2b7267f7c0800 RBX: ffff88803b498230 RCX: ffff88807d568000
RDX: 0000000080010001 RSI: 0000000080010001 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff816b8d4d R09: ffffed1017344f13
R10: ffffed1017344f13 R11: 1ffff11017344f12 R12: 0000000000000000
R13: 1ffff1101734840e R14: ffff8880b9a35cf8 R15: dffffc0000000000
FS:  000000c00b11b090(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f97d743f000 CR3: 000000001f518000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __invalidate_bh_lrus+0x37/0x3c0 fs/buffer.c:1380
 invalidate_bh_lru+0x66/0xb0 fs/buffer.c:1393
 __flush_smp_call_function_queue+0x2cc/0xcd0 kernel/smp.c:630
 __sysvec_call_function_single+0x62/0x70 arch/x86/kernel/smp.c:248
 sysvec_call_function_single+0x3e/0xb0 arch/x86/kernel/smp.c:243
 asm_sysvec_call_function_single+0x16/0x20 arch/x86/include/asm/idtentry.h:657
RIP: 0033:0x41e5de
Code: 44 89 c1 45 89 d5 41 d3 ea 41 0f ba e2 04 0f 83 ec 00 00 00 48 89 44 24 58 41 0f a3 cd 0f 83 87 00 00 00 4e 8d 14 20 4d 8b 12 <66> 90 4d 85 d2 74 79 4d 89 d5 4d 29 e2 4c 39 d2 77 6e 89 4c 24 3c
RSP: 002b:000000c003779e80 EFLAGS: 00000203
RAX: 0000000000000008 RBX: 000000c000043e98 RCX: 0000000000000001
RDX: 0000000000000020 RSI: 0000000000203002 RDI: 0000000000c05438
RBP: 000000c003779f08 R08: 0000000000000001 R09: 00007f5f7a44ee11
R10: 000000c00827bdc0 R11: 00007f5f7a5fffff R12: 000000c0089dc220
R13: 0000000000000032 R14: 000000c017c644e0 R15: 00007f5f78d2d324
 </TASK>