------------[ cut here ]------------
VFS: brelse: Trying to free free buffer
WARNING: CPU: 1 PID: 8256 at fs/buffer.c:1229 __brelse fs/buffer.c:1229 [inline]
WARNING: CPU: 1 PID: 8256 at fs/buffer.c:1229 brelse include/linux/buffer_head.h:324 [inline]
WARNING: CPU: 1 PID: 8256 at fs/buffer.c:1229 bh_lru_install fs/buffer.c:1346 [inline]
WARNING: CPU: 1 PID: 8256 at fs/buffer.c:1229 __find_get_block+0xc3c/0xd84 fs/buffer.c:1400
Modules linked in:
CPU: 1 UID: 0 PID: 8256 Comm: syz.2.788 Tainted: G        W          6.13.0-rc6-syzkaller-g577490b6abb9 #0
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __brelse fs/buffer.c:1229 [inline]
pc : brelse include/linux/buffer_head.h:324 [inline]
pc : bh_lru_install fs/buffer.c:1346 [inline]
pc : __find_get_block+0xc3c/0xd84 fs/buffer.c:1400
lr : __brelse fs/buffer.c:1229 [inline]
lr : brelse include/linux/buffer_head.h:324 [inline]
lr : bh_lru_install fs/buffer.c:1346 [inline]
lr : __find_get_block+0xc3c/0xd84 fs/buffer.c:1400
sp : ffff8000a39a6fc0
x29: ffff8000a39a6fc0 x28: 0000000000000000 x27: dfff800000000000
x26: 00000000000000fe x25: ffff0000d220e570 x24: 000000000000000c
x23: ffff0000f0dd4bc8 x22: ffff0000f0dd4000 x21: 0000000000000000
x20: ffff0000db74c970 x19: ffff0000d220e570 x18: 0000000000000008
x17: 0000000000000000 x16: ffff80008b60401c x15: ffff700011f41bc0
x14: 1ffff00011f41bc0 x13: 0000000000000004 x12: ffffffffffffffff
x11: 0000000000000002 x10: 0000000000ff0100 x9 : e111dcfea44c2e00
x8 : e111dcfea44c2e00 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff8000a39a66f8 x4 : ffff80008fa80460 x3 : ffff8000804a0b64
x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000
Call trace:
 __brelse fs/buffer.c:1229 [inline] (P)
 brelse include/linux/buffer_head.h:324 [inline] (P)
 bh_lru_install fs/buffer.c:1346 [inline] (P)
 __find_get_block+0xc3c/0xd84 fs/buffer.c:1400 (P)
 bdev_getblk+0x48/0x62c fs/buffer.c:1425
 __getblk include/linux/buffer_head.h:380 [inline]
 sb_getblk include/linux/buffer_head.h:386 [inline]
 __ext4_get_inode_loc+0x3ec/0xc50 fs/ext4/inode.c:4440
 ext4_get_inode_loc fs/ext4/inode.c:4568 [inline]
 ext4_reserve_inode_write+0x130/0x2e0 fs/ext4/inode.c:5827
 __ext4_mark_inode_dirty+0x1d4/0x868 fs/ext4/inode.c:6004
 ext4_dirty_inode+0xd4/0x104 fs/ext4/inode.c:6041
 __mark_inode_dirty+0x2e0/0x12b0 fs/fs-writeback.c:2515
 generic_update_time fs/inode.c:2112 [inline]
 inode_update_time fs/inode.c:2125 [inline]
 __file_update_time fs/inode.c:2353 [inline]
 file_update_time+0x340/0x3b4 fs/inode.c:2383
 ext4_page_mkwrite+0x1b4/0xe30 fs/ext4/inode.c:6159
 do_page_mkwrite+0x140/0x2dc mm/memory.c:3176
 do_shared_fault mm/memory.c:5398 [inline]
 do_fault mm/memory.c:5460 [inline]
 do_pte_missing mm/memory.c:3979 [inline]
 handle_pte_fault mm/memory.c:5801 [inline]
 __handle_mm_fault+0x1b2c/0x5ff0 mm/memory.c:5944
 handle_mm_fault+0x29c/0x8b4 mm/memory.c:6112
 do_page_fault+0x404/0x10a8 arch/arm64/mm/fault.c:647
 do_translation_fault+0xc4/0x114 arch/arm64/mm/fault.c:783
 do_mem_abort+0x74/0x200 arch/arm64/mm/fault.c:919
 el0_da+0x60/0x178 arch/arm64/kernel/entry-common.c:604
 el0t_64_sync_handler+0xcc/0x108 arch/arm64/kernel/entry-common.c:765
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
irq event stamp: 764
hardirqs last  enabled at (763): [<ffff8000804a9458>] __up_console_sem kernel/printk/printk.c:344 [inline]
hardirqs last  enabled at (763): [<ffff8000804a9458>] __console_unlock+0x70/0xc4 kernel/printk/printk.c:2869
hardirqs last disabled at (764): [<ffff80008b6a2044>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488
softirqs last  enabled at (674): [<ffff800080129934>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (672): [<ffff800080129900>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---