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VFS: brelse: Trying to free free buffer
WARNING: CPU: 1 PID: 3731 at fs/buffer.c:1145 __brelse fs/buffer.c:1145 [inline]
WARNING: CPU: 1 PID: 3731 at fs/buffer.c:1145 brelse+0x78/0xa0 include/linux/buffer_head.h:326
Modules linked in:
CPU: 1 PID: 3731 Comm: syz-fuzzer Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #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 6d 8f 8c ff eb 15 e8 66 8f 8c ff 48 c7 c7 c0 cc 9d 8a 31 c0 e8 b8 2d 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:ffffc90005197e60 EFLAGS: 00010046
RAX: cc5d6c7437546500 RBX: ffff8880326a7970 RCX: ffff888028dbba80
RDX: 0000000080010001 RSI: 0000000080010001 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff816b8dfd R09: ffffed1017364f13
R10: ffffed1017364f13 R11: 1ffff11017364f12 R12: ffff8880b9b35d38
R13: 1ffff1101736801a R14: ffff8880b9b35cf8 R15: dffffc0000000000
FS:  000000c03120e090(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c041703000 CR3: 0000000021fc8000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __invalidate_bh_lrus+0x206/0x3c0 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: 0033:0x40cdb8
Code: 8b 9c 24 88 00 00 00 4c 89 64 24 58 48 89 54 24 48 44 88 5c 24 25 44 88 6c 24 27 4c 89 54 24 28 45 84 c9 74 05 45 31 c9 eb 6d <48> 39 1d 81 9d af 01 be 48 00 00 00 48 0f 44 c6 48 89 44 24 38 48
RSP: 002b:000000c0393a4d90 EFLAGS: 00000246
RAX: 0000000000000030 RBX: 00000000009d4da0 RCX: 0000000000000001
RDX: 0000000000000030 RSI: 000000c03120e000 RDI: 000000c000497860
RBP: 000000c0393a4e00 R08: 00007fe9580e8108 R09: 0000000000000000
R10: 00007fe92eb8e120 R11: 0000000000000001 R12: 000000c041702000
R13: 0000000000000001 R14: 000000c000497860 R15: 0000000000000000
 </TASK>