------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 0 PID: 15509 at fs/buffer.c:1144 __brelse fs/buffer.c:1144 [inline] WARNING: CPU: 0 PID: 15509 at fs/buffer.c:1144 __brelse+0x67/0xa0 fs/buffer.c:1138 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 15509 Comm: syz-executor.4 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 panic+0x26a/0x50e kernel/panic.c:186 __warn.cold+0x20/0x5a kernel/panic.c:541 report_bug+0x262/0x2b0 lib/bug.c:183 fixup_bug arch/x86/kernel/traps.c:178 [inline] fixup_bug arch/x86/kernel/traps.c:173 [inline] do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038 RIP: 0010:__brelse fs/buffer.c:1144 [inline] RIP: 0010:__brelse+0x67/0xa0 fs/buffer.c:1138 Code: 7c 04 84 d2 75 4e 44 8b 63 60 31 ff 44 89 e6 e8 bf 16 b2 ff 45 85 e4 75 1c e8 45 15 b2 ff 48 c7 c7 e0 1c 75 88 e8 1e 4d 42 06 <0f> 0b 5b 5d 41 5c e9 2e 15 b2 ff e8 29 15 b2 ff be 04 00 00 00 48 RSP: 0018:ffff888042e279f8 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff88808b115690 RCX: 0000000000000000 RDX: 000000000001bba1 RSI: ffffffff814dff01 RDI: ffffed10085c4f31 RBP: ffff88808b1156f0 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000000 R13: ffff88809a109760 R14: ffff88803fdcd120 R15: ffff88808b115690 brelse include/linux/buffer_head.h:297 [inline] udf_rename+0x1cd/0x1270 fs/udf/namei.c:1114 vfs_rename+0x67e/0x1bc0 fs/namei.c:4479 do_renameat2+0xb59/0xc70 fs/namei.c:4629 __do_sys_rename fs/namei.c:4675 [inline] __se_sys_rename fs/namei.c:4673 [inline] __x64_sys_rename+0x5d/0x80 fs/namei.c:4673 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f13e6de40d9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f13e5356168 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 RAX: ffffffffffffffda RBX: 00007f13e6f03f80 RCX: 00007f13e6de40d9 RDX: 0000000000000000 RSI: 0000000020000200 RDI: 00000000200002c0 RBP: 00007f13e6e3fae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdb1c64a7f R14: 00007f13e5356300 R15: 0000000000022000 Kernel Offset: disabled Rebooting in 86400 seconds..