------------[ cut here ]------------
VFS: brelse: Trying to free free buffer
WARNING: CPU: 1 PID: 11211 at fs/buffer.c:1145 __brelse fs/buffer.c:1145 [inline]
WARNING: CPU: 1 PID: 11211 at fs/buffer.c:1145 brelse+0x78/0xa0 include/linux/buffer_head.h:327
Modules linked in:
CPU: 1 PID: 11211 Comm: syz-executor.1 Not tainted 6.0.0-syzkaller-09423-g493ffd6605b2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
RIP: 0010:__brelse fs/buffer.c:1145 [inline]
RIP: 0010:brelse+0x78/0xa0 include/linux/buffer_head.h:327
Code: df be 04 00 00 00 e8 47 17 e1 ff f0 ff 0b eb 1c e8 dd aa 8d ff eb 15 e8 d6 aa 8d ff 48 c7 c7 60 b7 9d 8a 31 c0 e8 38 0f 56 ff <0f> 0b 5b 5d c3 89 d9 80 e1 07 80 c1 03 38 c1 7c af 48 89 df e8 4f
RSP: 0000:ffffc900001f0f18 EFLAGS: 00010046
RAX: d79c187a2c5a4900 RBX: ffff888035d72060 RCX: ffff88801f69bb00
RDX: 0000000080010002 RSI: 0000000080010002 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff816aa79d R09: ffffed1017364f13
R10: ffffed1017364f13 R11: 1ffff11017364f12 R12: ffff8880b9b35d08
R13: 1ffff11017367fe6 R14: ffff8880b9b35cf8 R15: dffffc0000000000
FS: 00007faaa0b31700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c01bbdb180 CR3: 000000002723e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__invalidate_bh_lrus+0xaa/0x3c0 fs/buffer.c:1391
invalidate_bh_lru+0x66/0xb0 fs/buffer.c:1404
__flush_smp_call_function_queue+0x2bc/0xcc0 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:console_emit_next_record+0x865/0xa40 kernel/printk/printk.c:2741
Code: 1b 00 fb eb 25 e8 ab a9 1b 00 48 8b 44 24 48 42 80 3c 20 00 8a 5c 24 17 4c 8b 74 24 30 74 08 4c 89 f7 e8 3e 14 6f 00 49 ff 06 <48> c7 84 24 80 00 00 00 0e 36 e0 45 4b c7 04 2c 00 00 00 00 4b c7
RSP: 0000:ffffc9000b117180 EFLAGS: 00000287
RAX: ffffffff816ad79d RBX: 0000000000000001 RCX: 0000000000040000
RDX: ffffc900158a9000 RSI: 0000000000004f13 RDI: 0000000000004f14
RBP: ffffc9000b1173b0 R08: ffffffff816ad77a R09: fffffbfff1c19fde
R10: fffffbfff1c19fde R11: 1ffffffff1c19fdd R12: dffffc0000000000
R13: 1ffff92001622e40 R14: 0000000000000082 R15: 0000000000000200
console_unlock+0x26b/0x6f0 kernel/printk/printk.c:2861
vprintk_emit+0xd1/0x1e0 kernel/printk/printk.c:2271
_printk+0xc0/0x100 kernel/printk/printk.c:2292
_udf_err+0x126/0x170 fs/udf/super.c:2329
udf_read_tagged+0x583/0xaf0 fs/udf/misc.c:239
udf_check_anchor_block+0x1cc/0x6a0 fs/udf/super.c:1845
udf_scan_anchors+0x138/0x6c0 fs/udf/super.c:1885
udf_find_anchor fs/udf/super.c:1941 [inline]
udf_load_vrs+0x1f8/0x780 fs/udf/super.c:2006
udf_fill_super+0x88c/0x1ae0 fs/udf/super.c:2184
mount_bdev+0x26c/0x3a0 fs/super.c:1400
legacy_get_tree+0xea/0x180 fs/fs_context.c:610
vfs_get_tree+0x88/0x270 fs/super.c:1530
do_new_mount+0x289/0xad0 fs/namespace.c:3040
do_mount fs/namespace.c:3383 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount+0x2d3/0x3c0 fs/namespace.c:3568
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7faa9fa8cada
Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 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:00007faaa0b30f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007faa9fa8cada
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007faaa0b30fe0
RBP: 00007faaa0b31020 R08: 00007faaa0b31020 R09: 0000000020000000
R10: 0000000000008000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 00007faaa0b30fe0 R15: 0000000020000ac0
----------------
Code disassembly (best guess):
0: 1b 00 sbb (%rax),%eax
2: fb sti
3: eb 25 jmp 0x2a
5: e8 ab a9 1b 00 callq 0x1ba9b5
a: 48 8b 44 24 48 mov 0x48(%rsp),%rax
f: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1)
14: 8a 5c 24 17 mov 0x17(%rsp),%bl
18: 4c 8b 74 24 30 mov 0x30(%rsp),%r14
1d: 74 08 je 0x27
1f: 4c 89 f7 mov %r14,%rdi
22: e8 3e 14 6f 00 callq 0x6f1465
27: 49 ff 06 incq (%r14)
* 2a: 48 c7 84 24 80 00 00 movq $0x45e0360e,0x80(%rsp) <-- trapping instruction
31: 00 0e 36 e0 45
36: 4b c7 04 2c 00 00 00 movq $0x0,(%r12,%r13,1)
3d: 00
3e: 4b rex.WXB
3f: c7 .byte 0xc7