Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x138/0x19c lib/dump_stack.c:53 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10f/0x159 lib/fault-inject.c:149 ------------[ cut here ]------------ should_failslab+0xdb/0x130 mm/failslab.c:32 WARNING: CPU: 1 PID: 17647 at fs/super.c:1163 kill_block_super+0xc9/0xf0 fs/super.c:1163 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x2d9/0x780 mm/slab.c:3550 Kernel panic - not syncing: panic_on_warn set ... kmem_cache_zalloc include/linux/slab.h:651 [inline] alloc_buffer_head+0x24/0xe0 fs/buffer.c:3425 alloc_page_buffers+0xb7/0x200 fs/buffer.c:874 grow_dev_page fs/buffer.c:1025 [inline] grow_buffers fs/buffer.c:1077 [inline] __getblk_slow fs/buffer.c:1104 [inline] __getblk_gfp+0x342/0x710 fs/buffer.c:1383 __bread_gfp+0x2e/0x290 fs/buffer.c:1417 sb_bread include/linux/buffer_head.h:307 [inline] hfs_mdb_get+0x2ff/0x1d31 fs/hfs/mdb.c:87 hfs_fill_super+0xded/0x13c0 fs/hfs/super.c:413 mount_bdev+0x2c1/0x370 fs/super.c:1134 hfs_mount+0x35/0x40 fs/hfs/super.c:463 mount_fs+0x9d/0x2a7 fs/super.c:1237 vfs_kern_mount.part.0+0x5e/0x3d0 fs/namespace.c:1046 vfs_kern_mount fs/namespace.c:1036 [inline] do_new_mount fs/namespace.c:2549 [inline] do_mount+0x417/0x27d0 fs/namespace.c:2879 SYSC_mount fs/namespace.c:3095 [inline] SyS_mount+0xab/0x120 fs/namespace.c:3072 do_syscall_64+0x1eb/0x630 arch/x86/entry/common.c:289 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45b69a RSP: 002b:00007f608ac70a88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f608ac70b40 RCX: 000000000045b69a RDX: 00007f608ac70ae0 RSI: 00000000200000c0 RDI: 00007f608ac70b00 RBP: 0000000000000000 R08: 00007f608ac70b40 R09: 00007f608ac70ae0 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000004 R13: 00000000004c75e1 R14: 00000000004dd408 R15: 0000000000000003 CPU: 1 PID: 17647 Comm: syz-executor.1 Not tainted 4.14.111 #1 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x138/0x19c lib/dump_stack.c:53 panic+0x1f2/0x438 kernel/panic.c:182 __warn.cold+0x2f/0x34 kernel/panic.c:546 report_bug+0x216/0x254 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:177 [inline] fixup_bug arch/x86/kernel/traps.c:172 [inline] do_error_trap+0x1bb/0x310 arch/x86/kernel/traps.c:295 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:944 RIP: 0010:kill_block_super+0xc9/0xf0 fs/super.c:1163 RSP: 0018:ffff88805f2e7b98 EFLAGS: 00010246 RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc90006651000 RDX: 0000000000040000 RSI: ffffffff818d9169 RDI: ffff8880a45b0560 RBP: ffff88805f2e7bb0 R08: ffff8880a58981c0 R09: 0000000000000001 R10: 0000000000000000 R11: ffff8880a58981c0 R12: ffff888063dcebc0 R13: ffff8880a45b01c0 R14: ffff888063dcebc0 R15: dffffc0000000000 deactivate_locked_super+0x79/0xe0 fs/super.c:319 sget_userns+0x9df/0xc30 fs/super.c:537 sget+0xd6/0x120 fs/super.c:572 mount_bdev+0xd5/0x370 fs/super.c:1107 hfs_mount+0x35/0x40 fs/hfs/super.c:463 mount_fs+0x9d/0x2a7 fs/super.c:1237 vfs_kern_mount.part.0+0x5e/0x3d0 fs/namespace.c:1046 vfs_kern_mount fs/namespace.c:1036 [inline] do_new_mount fs/namespace.c:2549 [inline] do_mount+0x417/0x27d0 fs/namespace.c:2879 SYSC_mount fs/namespace.c:3095 [inline] SyS_mount+0xab/0x120 fs/namespace.c:3072 do_syscall_64+0x1eb/0x630 arch/x86/entry/common.c:289 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45b69a RSP: 002b:00007f82dc8dba88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f82dc8dbb40 RCX: 000000000045b69a RDX: 00007f82dc8dbae0 RSI: 00000000200000c0 RDI: 00007f82dc8dbb00 RBP: 0000000000000000 R08: 00007f82dc8dbb40 R09: 00007f82dc8dbae0 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000004 R13: 00000000004c75e1 R14: 00000000004dd408 R15: 0000000000000003 Kernel Offset: disabled Rebooting in 86400 seconds..