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VFS: brelse: Trying to free free buffer
WARNING: CPU: 0 PID: 0 at fs/buffer.c:1145 __brelse fs/buffer.c:1145 [inline]
WARNING: CPU: 0 PID: 0 at fs/buffer.c:1145 brelse+0x78/0xa0 include/linux/buffer_head.h:326
Modules linked in:
CPU: 0 PID: 0 Comm: swapper/0 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: 0018:ffffc90000007f18 EFLAGS: 00010046
RAX: 46c3862de8269300 RBX: ffff888072d68c28 RCX: ffffffff8c8bb880
RDX: 0000000080010002 RSI: 0000000080010002 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff816b8dfd R09: ffffed1017344f13
R10: ffffed1017344f13 R11: 1ffff11017344f12 R12: ffff8880b9a35d08
R13: 1ffff1101734840e R14: ffff8880b9a35cf8 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005605d7cc99a0 CR3: 00000000275bd000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__invalidate_bh_lrus+0xaa/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+0x8c/0xb0 arch/x86/kernel/smp.c:243
asm_sysvec_call_function_single+0x16/0x20 arch/x86/include/asm/idtentry.h:657
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:29 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline]
RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:130 [inline]
RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:113 [inline]
RIP: 0010:acpi_idle_do_entry drivers/acpi/processor_idle.c:572 [inline]
RIP: 0010:acpi_idle_enter+0x43d/0x7e0 drivers/acpi/processor_idle.c:709
Code: ff e8 c7 0b 4b f7 48 83 e3 08 44 8b 7c 24 04 0f 85 e8 00 00 00 e8 d3 b8 51 f7 66 90 e8 ec 06 4b f7 0f 00 2d 85 57 bb 00 fb f4 <9c> 8f 44 24 40 4c 89 e0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 e7
RSP: 0018:ffffffff8c807b80 EFLAGS: 000002d3
RAX: ffffffff8a3cc8f4 RBX: 0000000000000000 RCX: ffffffff8c8bb880
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8a3cc8ed
RBP: ffffffff8c807c30 R08: ffffffff8a3cc8d9 R09: fffffbfff1917711
R10: fffffbfff1917711 R11: 1ffffffff1917710 R12: ffffffff8c807bc0
R13: dffffc0000000000 R14: ffff888145850800 R15: 0000000000000001
cpuidle_enter_state+0x50a/0xf10 drivers/cpuidle/cpuidle.c:239
cpuidle_enter+0x59/0x90 drivers/cpuidle/cpuidle.c:356
call_cpuidle kernel/sched/idle.c:155 [inline]
cpuidle_idle_call kernel/sched/idle.c:236 [inline]
do_idle+0x3b9/0x640 kernel/sched/idle.c:303
cpu_startup_entry+0x15/0x20 kernel/sched/idle.c:400
rest_init+0x24f/0x270 init/main.c:729
arch_call_rest_init+0xa/0xa init/main.c:890
start_kernel+0x49a/0x540 init/main.c:1145
secondary_startup_64_no_verify+0xcf/0xdb
----------------
Code disassembly (best guess), 1 bytes skipped:
0: e8 c7 0b 4b f7 callq 0xf74b0bcc
5: 48 83 e3 08 and $0x8,%rbx
9: 44 8b 7c 24 04 mov 0x4(%rsp),%r15d
e: 0f 85 e8 00 00 00 jne 0xfc
14: e8 d3 b8 51 f7 callq 0xf751b8ec
19: 66 90 xchg %ax,%ax
1b: e8 ec 06 4b f7 callq 0xf74b070c
20: 0f 00 2d 85 57 bb 00 verw 0xbb5785(%rip) # 0xbb57ac
27: fb sti
28: f4 hlt
* 29: 9c pushfq <-- trapping instruction
2a: 8f 44 24 40 popq 0x40(%rsp)
2e: 4c 89 e0 mov %r12,%rax
31: 48 c1 e8 03 shr $0x3,%rax
35: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1)
3a: 74 08 je 0x44
3c: 4c 89 e7 mov %r12,%rdi