------------[ cut here ]------------
VFS: brelse: Trying to free free buffer
WARNING: CPU: 1 PID: 9987 at fs/buffer.c:1235 __brelse fs/buffer.c:1235 [inline]
WARNING: CPU: 1 PID: 9987 at fs/buffer.c:1235 brelse include/linux/buffer_head.h:309 [inline]
WARNING: CPU: 1 PID: 9987 at fs/buffer.c:1235 __invalidate_bh_lrus fs/buffer.c:1487 [inline]
WARNING: CPU: 1 PID: 9987 at fs/buffer.c:1235 invalidate_bh_lru+0x128/0x200 fs/buffer.c:1500
Modules linked in:
CPU: 1 PID: 9987 Comm: syz-executor.1 Not tainted 6.9.0-rc3-syzkaller-gb5d2afe8745b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __brelse fs/buffer.c:1235 [inline]
pc : brelse include/linux/buffer_head.h:309 [inline]
pc : __invalidate_bh_lrus fs/buffer.c:1487 [inline]
pc : invalidate_bh_lru+0x128/0x200 fs/buffer.c:1500
lr : __brelse fs/buffer.c:1235 [inline]
lr : brelse include/linux/buffer_head.h:309 [inline]
lr : __invalidate_bh_lrus fs/buffer.c:1487 [inline]
lr : invalidate_bh_lru+0x128/0x200 fs/buffer.c:1500
sp : ffff800080017e10
x29: ffff800080017e10 x28: ffff80008ee7d568 x27: 0000000000000000
x26: 0000000000000001 x25: 00000000ffffffff x24: ffff0001b3e00fd0
x23: 0000000000000000 x22: dfff800000000000 x21: 0000000000000000
x20: ffff0000dd1bdc28 x19: ffff80008b0bba00 x18: 0000000000000008
x17: 0000000000000000 x16: ffff80008ae71340 x15: 0000000000000001
x14: 1fffe000367be202 x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000010003 x10: 0000000000ff0100 x9 : 90e3b0e31b757700
x8 : 90e3b0e31b757700 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff800080017578 x4 : ffff80008ef65060 x3 : ffff8000805e9200
x2 : 0000000000000001 x1 : 0000000100010001 x0 : 0000000000000000
Call trace:
 __brelse fs/buffer.c:1235 [inline]
 brelse include/linux/buffer_head.h:309 [inline]
 __invalidate_bh_lrus fs/buffer.c:1487 [inline]
 invalidate_bh_lru+0x128/0x200 fs/buffer.c:1500
 csd_do_func kernel/smp.c:133 [inline]
 __flush_smp_call_function_queue+0x534/0x20cc kernel/smp.c:511
 generic_smp_call_function_single_interrupt+0x18/0x24 kernel/smp.c:428
 do_handle_IPI arch/arm64/kernel/smp.c:900 [inline]
 ipi_handler+0x1e0/0x7dc arch/arm64/kernel/smp.c:950
 handle_percpu_devid_irq+0x174/0x308 kernel/irq/chip.c:942
 generic_handle_irq_desc include/linux/irqdesc.h:161 [inline]
 handle_irq_desc kernel/irq/irqdesc.c:688 [inline]
 generic_handle_domain_irq+0x7c/0xc4 kernel/irq/irqdesc.c:744
 __gic_handle_irq drivers/irqchip/irq-gic-v3.c:771 [inline]
 __gic_handle_irq_from_irqson drivers/irqchip/irq-gic-v3.c:822 [inline]
 gic_handle_irq+0x6c/0x190 drivers/irqchip/irq-gic-v3.c:866
 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:889
 do_interrupt_handler+0xd4/0x138 arch/arm64/kernel/entry-common.c:310
 el0_interrupt+0x68/0x244 arch/arm64/kernel/entry-common.c:794
 __el0_irq_handler_common+0x18/0x24 arch/arm64/kernel/entry-common.c:802
 el0t_64_irq_handler+0x10/0x1c arch/arm64/kernel/entry-common.c:807
 el0t_64_irq+0x190/0x194 arch/arm64/kernel/entry.S:599
irq event stamp: 12408
hardirqs last  enabled at (12407): [<ffff80008ae6cc74>] el0t_64_sync_handler+0xcc/0xfc arch/arm64/kernel/entry-common.c:733
hardirqs last disabled at (12408): [<ffff80008ae6e550>] __el0_irq_handler_common+0x18/0x24 arch/arm64/kernel/entry-common.c:802
softirqs last  enabled at (12284): [<ffff800080031848>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (12282): [<ffff800080031814>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---
TCP: request_sock_TCP: Possible SYN flooding on port [::]:20002. Sending cookies.
TCP: request_sock_TCP: Possible SYN flooding on port [::]:20002. Sending cookies.