VFS: brelse: Trying to free free buffer
WARNING: CPU: 0 PID: 8260 at fs/buffer.c:1229 __brelse+0x84/0xd8 fs/buffer.c:1229
Modules linked in:
CPU: 0 UID: 0 PID: 8260 Comm: syz.3.289 Tainted: G        W          6.13.0-rc6-syzkaller-g6251d1776bc5 #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+0x84/0xd8 fs/buffer.c:1229
lr : __brelse+0x84/0xd8 fs/buffer.c:1229
sp : ffff8000a36e7120
x29: ffff8000a36e7120 x28: 1ffff000146dcea5 x27: 0000000000000001
x26: 0000000000000000 x25: 1ffff000146dcea1 x24: dfff800000000000
x23: ffff0000db78c000 x22: ffff8000a36e7528 x21: ffff8000a36e750c
x20: 0000000000000000 x19: ffff0000db78c060 x18: 1fffe000366fc67e
x17: ffff80008f99d000 x16: ffff80008046323c x15: 0000000000000001
x14: 1fffe0001b17a840 x13: 0000000000000000 x12: 0000000000000000
x11: ffff60001b17a841 x10: 1fffe0001b17a840 x9 : aeed6ced4ef3e300
x8 : aeed6ced4ef3e300 x7 : ffff8000803d02d8 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff8000803c2de4
x2 : 0000000000000001 x1 : 0000000000000004 x0 : 0000000000000001
Call trace:
 __brelse+0x84/0xd8 fs/buffer.c:1229 (P)
 brelse include/linux/buffer_head.h:324 [inline]
 exfat_put_dentry_set+0x150/0x268 fs/exfat/dir.c:553
 exfat_add_entry+0x4dc/0x87c fs/exfat/namei.c:519
 exfat_create+0x160/0x474 fs/exfat/namei.c:565
 lookup_open fs/namei.c:3649 [inline]
 open_last_lookups fs/namei.c:3748 [inline]
 path_openat+0x13e4/0x2b14 fs/namei.c:3984
 do_filp_open+0x1e8/0x404 fs/namei.c:4014
 do_sys_openat2+0x124/0x1b8 fs/open.c:1402
 do_sys_open fs/open.c:1417 [inline]
 __do_sys_openat fs/open.c:1433 [inline]
 __se_sys_openat fs/open.c:1428 [inline]
 __arm64_sys_openat+0x1f0/0x240 fs/open.c:1428
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
irq event stamp: 2510
hardirqs last  enabled at (2509): [<ffff8000803d0378>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1535 [inline]
hardirqs last  enabled at (2509): [<ffff8000803d0378>] finish_lock_switch+0xbc/0x1e4 kernel/sched/core.c:5123
hardirqs last disabled at (2510): [<ffff80008b6a41c4>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488
softirqs last  enabled at (2378): [<ffff800080129934>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (2376): [<ffff800080129900>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---