__dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x138/0x197 lib/dump_stack.c:53 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10f/0x159 lib/fault-inject.c:149 should_failslab+0xdb/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x2d7/0x780 mm/slab.c:3550 kmem_cache_zalloc include/linux/slab.h:651 [inline] mmap_region+0x602/0x1030 mm/mmap.c:1691 general protection fault: 0000 [#1] PREEMPT SMP KASAN do_mmap+0x5b8/0xcd0 mm/mmap.c:1501 Modules linked in: do_mmap_pgoff include/linux/mm.h:2178 [inline] vm_mmap_pgoff+0x17a/0x1d0 mm/util.c:333 CPU: 0 PID: 24151 Comm: syz-executor.0 Not tainted 4.14.148 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 SYSC_mmap_pgoff mm/mmap.c:1551 [inline] SyS_mmap_pgoff+0xa3/0x520 mm/mmap.c:1509 task: ffff888054a16300 task.stack: ffff888053530000 RIP: 0010:cgroup_root_from_kf kernel/cgroup/cgroup.c:1178 [inline] RIP: 0010:cgroup_kill_sb+0x2e/0x330 kernel/cgroup/cgroup.c:2035 RSP: 0018:ffff888053537ac0 EFLAGS: 00010246 SYSC_mmap arch/x86/kernel/sys_x86_64.c:100 [inline] SyS_mmap+0x16/0x20 arch/x86/kernel/sys_x86_64.c:91 RAX: 0000000000000000 RBX: 00000000fffffff4 RCX: 0000000000000000 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 RDX: dffffc0000000000 RSI: ffffffff81a9c76c RDI: ffff88805fb2c930 RBP: ffff888053537ae0 R08: ffff888054a16300 R09: ffff888054a16ba0 entry_SYSCALL_64_after_hwframe+0x42/0xb7 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88805fb2c900 RIP: 0033:0x459a59 R13: ffffffff877add80 R14: ffff88805fb2c900 R15: dffffc0000000000 RSP: 002b:00007f6aef8bbc78 EFLAGS: 00000246 FS: 00007fe5c907c700(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000 ORIG_RAX: 0000000000000009 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 RAX: ffffffffffffffda RBX: 00007f6aef8bbc90 RCX: 0000000000459a59 CR2: 000000000075c000 CR3: 00000000a0ff4000 CR4: 00000000001426f0 RDX: 0000000000000403 RSI: 0000000000fff000 RDI: 0000000020000000 DR0: 0000000020000000 DR1: 0000000000000000 DR2: 0000000000000000 RBP: 000000000075bf20 R08: ffffffffffffffff R09: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 R10: 0002000000000032 R11: 0000000000000246 R12: 00007f6aef8bc6d4 Call Trace: R13: 00000000004c6176 R14: 00000000004db118 R15: 0000000000000006 deactivate_locked_super+0x74/0xe0 fs/super.c:319 protocol 88fb is buggy, dev hsr_slave_0 sget_userns+0x9d9/0xc30 fs/super.c:537 protocol 88fb is buggy, dev hsr_slave_1 kernfs_mount_ns+0xe9/0x790 fs/kernfs/mount.c:324 kernfs_mount include/linux/kernfs.h:543 [inline] cgroup_do_mount+0x9e/0x270 kernel/cgroup/cgroup.c:1952 cgroup_mount+0x789/0x8b0 kernel/cgroup/cgroup.c:2019 mount_fs+0x97/0x2a1 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+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x459a59 RSP: 002b:00007fe5c907bc78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fe5c907bc90 RCX: 0000000000459a59 RDX: 0000000020000080 RSI: 0000000020000100 RDI: 0000000000000000 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe5c907c6d4 R13: 00000000004c62c9 R14: 00000000004db250 R15: 0000000000000005 Code: e5 41 55 41 54 49 89 fc 53 48 83 ec 08 e8 7b 2a 06 00 4c 89 e7 e8 63 fc 52 00 48 ba 00 00 00 00 00 fc ff df 48 89 c1 48 c1 e9 03 <80> 3c 11 00 0f 85 c4 02 00 00 48 8b 18 48 b8 00 00 00 00 00 fc RIP: cgroup_root_from_kf kernel/cgroup/cgroup.c:1178 [inline] RSP: ffff888053537ac0 RIP: cgroup_kill_sb+0x2e/0x330 kernel/cgroup/cgroup.c:2035 RSP: ffff888053537ac0 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop1' (ffff8880a49beda0): kobject_uevent_env kobject: 'loop1' (ffff8880a49beda0): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (ffff8880a4aba660): kobject_uevent_env kobject: 'loop4' (ffff8880a4aba660): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a4aa1720): kobject_uevent_env kobject: 'loop3' (ffff8880a4aa1720): fill_kobj_path: path = '/devices/virtual/block/loop3' ---[ end trace 2d919d43efe3f5bf ]--- kobject: 'loop4' (ffff8880a4aba660): kobject_uevent_env SELinux: unrecognized netlink message: protocol=0 nlmsg_type=26222 sclass=netlink_route_socket pig=24192 comm=syz-executor.1 kobject: 'loop4' (ffff8880a4aba660): fill_kobj_path: path = '/devices/virtual/block/loop4'