====================================================== WARNING: possible circular locking dependency detected 4.14.256-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.1/10095 is trying to acquire lock: (&table[i].mutex){+.+.}, at: [] nf_tables_netdev_event+0x10d/0x4d0 net/netfilter/nf_tables_netdev.c:122 but task is already holding lock: (rtnl_mutex){+.+.}, at: [] rtnl_lock net/core/rtnetlink.c:72 [inline] (rtnl_mutex){+.+.}, at: [] rtnetlink_rcv_msg+0x31d/0xb10 net/core/rtnetlink.c:4315 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (rtnl_mutex){+.+.}: __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 unregister_netdevice_notifier+0x5e/0x2b0 net/core/dev.c:1630 tee_tg_destroy+0x5c/0xb0 net/netfilter/xt_TEE.c:123 cleanup_entry+0x232/0x310 net/ipv6/netfilter/ip6_tables.c:685 __do_replace+0x38d/0x580 net/ipv6/netfilter/ip6_tables.c:1106 do_replace net/ipv6/netfilter/ip6_tables.c:1162 [inline] do_ip6t_set_ctl+0x256/0x3b0 net/ipv6/netfilter/ip6_tables.c:1688 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] nf_setsockopt+0x5f/0xb0 net/netfilter/nf_sockopt.c:115 ipv6_setsockopt+0xc0/0x120 net/ipv6/ipv6_sockglue.c:937 tcp_setsockopt+0x7b/0xc0 net/ipv4/tcp.c:2828 SYSC_setsockopt net/socket.c:1865 [inline] SyS_setsockopt+0x110/0x1e0 net/socket.c:1844 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb -> #1 (&xt[i].mutex){+.+.}: __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 match_revfn+0x43/0x210 net/netfilter/x_tables.c:332 xt_find_revision+0x8d/0x1d0 net/netfilter/x_tables.c:380 nfnl_compat_get+0x1f7/0x870 net/netfilter/nft_compat.c:678 nfnetlink_rcv_msg+0x9bb/0xc00 net/netfilter/nfnetlink.c:214 netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2441 nfnetlink_rcv+0x1ab/0x1da0 net/netfilter/nfnetlink.c:515 netlink_unicast_kernel net/netlink/af_netlink.c:1294 [inline] netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1320 netlink_sendmsg+0x638/0xb90 net/netlink/af_netlink.c:1886 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb -> #0 (&table[i].mutex){+.+.}: lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 nf_tables_netdev_event+0x10d/0x4d0 net/netfilter/nf_tables_netdev.c:122 notifier_call_chain+0x108/0x1a0 kernel/notifier.c:93 call_netdevice_notifiers_info net/core/dev.c:1667 [inline] call_netdevice_notifiers net/core/dev.c:1683 [inline] rollback_registered_many+0x765/0xba0 net/core/dev.c:7211 unregister_netdevice_many.part.0+0x18/0x2e0 net/core/dev.c:8293 unregister_netdevice_many+0x36/0x50 net/core/dev.c:8292 rtnl_newlink+0x1416/0x1860 net/core/rtnetlink.c:2771 rtnetlink_rcv_msg+0x3be/0xb10 net/core/rtnetlink.c:4320 netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2441 netlink_unicast_kernel net/netlink/af_netlink.c:1294 [inline] netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1320 netlink_sendmsg+0x638/0xb90 net/netlink/af_netlink.c:1886 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb other info that might help us debug this: Chain exists of: &table[i].mutex --> &xt[i].mutex --> rtnl_mutex Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(rtnl_mutex); lock(&xt[i].mutex); lock(rtnl_mutex); lock(&table[i].mutex); *** DEADLOCK *** 1 lock held by syz-executor.1/10095: #0: (rtnl_mutex){+.+.}, at: [] rtnl_lock net/core/rtnetlink.c:72 [inline] #0: (rtnl_mutex){+.+.}, at: [] rtnetlink_rcv_msg+0x31d/0xb10 net/core/rtnetlink.c:4315 stack backtrace: CPU: 0 PID: 10095 Comm: syz-executor.1 Not tainted 4.14.256-syzkaller #0 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+0x1b2/0x281 lib/dump_stack.c:58 print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1258 check_prev_add kernel/locking/lockdep.c:1905 [inline] check_prevs_add kernel/locking/lockdep.c:2022 [inline] validate_chain kernel/locking/lockdep.c:2464 [inline] __lock_acquire+0x2e0e/0x3f20 kernel/locking/lockdep.c:3491 lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 nf_tables_netdev_event+0x10d/0x4d0 net/netfilter/nf_tables_netdev.c:122 notifier_call_chain+0x108/0x1a0 kernel/notifier.c:93 call_netdevice_notifiers_info net/core/dev.c:1667 [inline] call_netdevice_notifiers net/core/dev.c:1683 [inline] rollback_registered_many+0x765/0xba0 net/core/dev.c:7211 unregister_netdevice_many.part.0+0x18/0x2e0 net/core/dev.c:8293 unregister_netdevice_many+0x36/0x50 net/core/dev.c:8292 rtnl_newlink+0x1416/0x1860 net/core/rtnetlink.c:2771 rtnetlink_rcv_msg+0x3be/0xb10 net/core/rtnetlink.c:4320 netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2441 netlink_unicast_kernel net/netlink/af_netlink.c:1294 [inline] netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1320 netlink_sendmsg+0x638/0xb90 net/netlink/af_netlink.c:1886 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f9bd6e2cae9 RSP: 002b:00007f9bd5d81188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f9bd6f40028 RCX: 00007f9bd6e2cae9 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000006 RBP: 00007f9bd6e86ff7 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe957eb4af R14: 00007f9bd5d81300 R15: 0000000000022000 VFS: unable to find oldfs superblock on device loop4 ieee80211 phy3: Selected rate control algorithm 'minstrel_ht' EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue ieee80211 phy3: hwaddr 02:00:00:00:03:00 registered VFS: unable to find oldfs superblock on device loop4 VFS: unable to find oldfs superblock on device loop4 EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue VFS: unable to find oldfs superblock on device loop4 ieee80211 phy4: Selected rate control algorithm 'minstrel_ht' ieee80211 phy4: hwaddr 02:00:00:00:04:00 registered EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue VFS: unable to find oldfs superblock on device loop4 init_special_inode: bogus i_mode (177777) for inode loop3:1 EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue F2FS-fs (loop2): Unable to read 2th superblock VFS: unable to find oldfs superblock on device loop4 F2FS-fs (loop2): old and new quota format mixing F2FS-fs (loop2): Unable to read 2th superblock F2FS-fs (loop2): old and new quota format mixing F2FS-fs (loop2): Unable to read 2th superblock F2FS-fs (loop2): old and new quota format mixing VFS: unable to find oldfs superblock on device loop4 EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue init_special_inode: bogus i_mode (177777) for inode loop3:1 VFS: unable to find oldfs superblock on device loop4 VFS: unable to find oldfs superblock on device loop4 EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue f2fs_msg: 10 callbacks suppressed F2FS-fs (loop2): Unable to read 2th superblock F2FS-fs (loop2): old and new quota format mixing F2FS-fs (loop2): Unable to read 2th superblock init_special_inode: bogus i_mode (177777) for inode loop3:1 VFS: unable to find oldfs superblock on device loop4 F2FS-fs (loop2): old and new quota format mixing print_req_error: I/O error, dev loop3, sector 0 Buffer I/O error on dev loop3, logical block 0, async page read EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue VFS: unable to find oldfs superblock on device loop4 init_special_inode: bogus i_mode (177777) for inode loop3:1 VFS: unable to find oldfs superblock on device loop4 print_req_error: I/O error, dev loop2, sector 0 VFS: unable to find oldfs superblock on device loop4 EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue syz-executor.1: sending ioctl 125d to a partition! VFS: unable to find oldfs superblock on device loop4 print_req_error: I/O error, dev loop2, sector 0 init_special_inode: bogus i_mode (177777) for inode loop3:1 print_req_error: I/O error, dev loop3, sector 0 Buffer I/O error on dev loop3, logical block 0, async page read EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue init_special_inode: bogus i_mode (177777) for inode loop3:1 print_req_error: I/O error, dev loop3, sector 0 Buffer I/O error on dev loop3, logical block 0, async page read EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue init_special_inode: bogus i_mode (177777) for inode loop3:1 EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue print_req_error: I/O error, dev loop3, sector 0 Buffer I/O error on dev loop3, logical block 0, async page read F2FS-fs (loop2): Unable to read 1th superblock EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue F2FS-fs (loop2): Unable to read 2th superblock F2FS-fs (loop2): Unable to read 2th superblock F2FS-fs (loop2): old and new quota format mixing init_special_inode: bogus i_mode (177777) for inode loop3:1 print_req_error: I/O error, dev loop3, sector 0 Buffer I/O error on dev loop3, logical block 0, async page read F2FS-fs (loop2): Magic Mismatch, valid(0xf2f52010) - read(0x0) F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue init_special_inode: bogus i_mode (177777) for inode loop3:1 print_req_error: I/O error, dev loop3, sector 0 Buffer I/O error on dev loop3, logical block 0, async page read init_special_inode: bogus i_mode (177777) for inode loop3:1 VFS: unable to find oldfs superblock on device loop4 EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue init_special_inode: bogus i_mode (177777) for inode loop3:1 VFS: unable to find oldfs superblock on device loop4 EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue print_req_error: I/O error, dev loop3, sector 0 Buffer I/O error on dev loop3, logical block 0, async page read VFS: unable to find oldfs superblock on device loop4 EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue VFS: unable to find oldfs superblock on device loop4 EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue print_req_error: I/O error, dev loop3, sector 0 Buffer I/O error on dev loop2, logical block 0, async page read VFS: unable to find oldfs superblock on device loop4 EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue VFS: unable to find oldfs superblock on device loop4 EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue Buffer I/O error on dev loop2, logical block 0, async page read Unable to read inode block MINIX-fs: get root inode failed Buffer I/O error on dev loop3, logical block 0, async page read Unable to read inode block MINIX-fs: get root inode failed FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 1 EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue CPU: 0 PID: 11146 Comm: syz-executor.4 Not tainted 4.14.256-syzkaller #0 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+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] __do_kmalloc mm/slab.c:3718 [inline] __kmalloc+0x2c1/0x400 mm/slab.c:3729 kmalloc include/linux/slab.h:493 [inline] SYSC_memfd_create mm/shmem.c:3748 [inline] SyS_memfd_create+0xbc/0x3c0 mm/shmem.c:3718 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7fe069ca1ae9 RSP: 002b:00007fe068c16f48 EFLAGS: 00000246 ORIG_RAX: 000000000000013f RAX: ffffffffffffffda RBX: 0000000020000540 RCX: 00007fe069ca1ae9 RDX: 00007fe068c17000 RSI: 0000000000000000 RDI: 00007fe069cfb180 RBP: 0000000000000000 R08: 00007fe068c16ff8 R09: ffffffffffffffff R10: 00007fe068c16ffc R11: 0000000000000246 R12: 0000000020000080 R13: 00000000200000c0 R14: 0000000000000000 R15: 0000000020000340 Unable to read inode block FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 MINIX-fs: get root inode failed CPU: 1 PID: 11188 Comm: syz-executor.4 Not tainted 4.14.256-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x28e/0x3c0 mm/slab.c:3550 __d_alloc+0x2a/0xa20 fs/dcache.c:1623 __shmem_file_setup.part.0+0xcb/0x3c0 mm/shmem.c:4270 __shmem_file_setup mm/shmem.c:4258 [inline] shmem_file_setup mm/shmem.c:4325 [inline] SYSC_memfd_create mm/shmem.c:3778 [inline] SyS_memfd_create+0x1fc/0x3c0 mm/shmem.c:3718 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7fe069ca1ae9 RSP: 002b:00007fe068c16f48 EFLAGS: 00000246 ORIG_RAX: 000000000000013f RAX: ffffffffffffffda RBX: 0000000020000540 RCX: 00007fe069ca1ae9 RDX: 00007fe068c17000 RSI: 0000000000000000 RDI: 00007fe069cfb180 RBP: 0000000000000000 R08: 00007fe068c16ff8 R09: ffffffffffffffff R10: 00007fe068c16ffc R11: 0000000000000246 R12: 0000000020000080 R13: 00000000200000c0 R14: 0000000000000000 R15: 0000000020000340 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 11235 Comm: syz-executor.4 Not tainted 4.14.256-syzkaller #0 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+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x28e/0x3c0 mm/slab.c:3550 shmem_alloc_inode+0x18/0x40 mm/shmem.c:3898 alloc_inode+0x5d/0x170 fs/inode.c:210 new_inode_pseudo fs/inode.c:899 [inline] new_inode+0x1d/0xf0 fs/inode.c:928 shmem_get_inode+0x8b/0x890 mm/shmem.c:2176 __shmem_file_setup.part.0+0x104/0x3c0 mm/shmem.c:4276 __shmem_file_setup mm/shmem.c:4258 [inline] shmem_file_setup mm/shmem.c:4325 [inline] SYSC_memfd_create mm/shmem.c:3778 [inline] SyS_memfd_create+0x1fc/0x3c0 mm/shmem.c:3718 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7fe069ca1ae9 RSP: 002b:00007fe068c16f48 EFLAGS: 00000246 ORIG_RAX: 000000000000013f RAX: ffffffffffffffda RBX: 0000000020000540 RCX: 00007fe069ca1ae9 RDX: 00007fe068c17000 RSI: 0000000000000000 RDI: 00007fe069cfb180 RBP: 0000000000000000 R08: 00007fe068c16ff8 R09: ffffffffffffffff R10: 00007fe068c16ffc R11: 0000000000000246 R12: 0000000020000080 R13: 00000000200000c0 R14: 0000000000000000 R15: 0000000020000340 Unable to read inode block MINIX-fs: get root inode failed FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue CPU: 0 PID: 11260 Comm: syz-executor.4 Not tainted 4.14.256-syzkaller #0 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+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x28e/0x3c0 mm/slab.c:3550 kmem_cache_zalloc include/linux/slab.h:651 [inline] get_empty_filp+0x86/0x3f0 fs/file_table.c:123 alloc_file+0x23/0x440 fs/file_table.c:164 __shmem_file_setup.part.0+0x198/0x3c0 mm/shmem.c:4288 __shmem_file_setup mm/shmem.c:4258 [inline] shmem_file_setup mm/shmem.c:4325 [inline] SYSC_memfd_create mm/shmem.c:3778 [inline] SyS_memfd_create+0x1fc/0x3c0 mm/shmem.c:3718 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7fe069ca1ae9 RSP: 002b:00007fe068c16f48 EFLAGS: 00000246 ORIG_RAX: 000000000000013f RAX: ffffffffffffffda RBX: 0000000020000540 RCX: 00007fe069ca1ae9 RDX: 00007fe068c17000 RSI: 0000000000000000 RDI: 00007fe069cfb180 RBP: 0000000000000000 R08: 00007fe068c16ff8 R09: ffffffffffffffff R10: 00007fe068c16ffc R11: 0000000000000246 R12: 0000000020000080 R13: 00000000200000c0 R14: 0000000000000000 R15: 0000000020000340 Unable to read inode block MINIX-fs: get root inode failed netlink: 8 bytes leftover after parsing attributes in process `syz-executor.5'. Unable to read inode block MINIX-fs: get root inode failed EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue netlink: 8 bytes leftover after parsing attributes in process `syz-executor.5'. FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 11287 Comm: syz-executor.4 Not tainted 4.14.256-syzkaller #0 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+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc_trace+0x29a/0x3d0 mm/slab.c:3616 kmalloc include/linux/slab.h:488 [inline] kzalloc include/linux/slab.h:661 [inline] aa_alloc_file_ctx security/apparmor/include/file.h:60 [inline] apparmor_file_alloc_security+0x129/0x800 security/apparmor/lsm.c:431 security_file_alloc+0x66/0xa0 security/security.c:874 Unable to read inode block get_empty_filp+0x16b/0x3f0 fs/file_table.c:129 alloc_file+0x23/0x440 fs/file_table.c:164 __shmem_file_setup.part.0+0x198/0x3c0 mm/shmem.c:4288 MINIX-fs: get root inode failed __shmem_file_setup mm/shmem.c:4258 [inline] shmem_file_setup mm/shmem.c:4325 [inline] SYSC_memfd_create mm/shmem.c:3778 [inline] SyS_memfd_create+0x1fc/0x3c0 mm/shmem.c:3718 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7fe069ca1ae9 RSP: 002b:00007fe068c16f48 EFLAGS: 00000246 ORIG_RAX: 000000000000013f RAX: ffffffffffffffda RBX: 0000000020000540 RCX: 00007fe069ca1ae9 RDX: 00007fe068c17000 RSI: 0000000000000000 RDI: 00007fe069cfb180 RBP: 0000000000000000 R08: 00007fe068c16ff8 R09: ffffffffffffffff R10: 00007fe068c16ffc R11: 0000000000000246 R12: 0000000020000080 R13: 00000000200000c0 R14: 0000000000000000 R15: 0000000020000340 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 11318 Comm: syz-executor.4 Not tainted 4.14.256-syzkaller #0 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+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x28e/0x3c0 mm/slab.c:3550 getname_flags+0xc8/0x550 fs/namei.c:138 do_sys_open+0x1ce/0x410 fs/open.c:1075 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7fe069c54a04 RSP: 002b:00007fe068c16ed0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fe069ceb9c8 RCX: 00007fe069c54a04 RDX: 0000000000000002 RSI: 00007fe068c17000 RDI: 00000000ffffff9c RBP: 00007fe068c17000 R08: 0000000000000000 R09: ffffffffffffffff R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002 R13: 0000000000000004 R14: 0000000020000540 R15: 0000000000000000 EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue FAULT_INJECTION: forcing a failure. name fail_page_alloc, interval 1, probability 0, space 0, times 1 CPU: 0 PID: 11335 Comm: syz-executor.4 Not tainted 4.14.256-syzkaller #0 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+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_fail_alloc_page mm/page_alloc.c:2898 [inline] prepare_alloc_pages mm/page_alloc.c:4131 [inline] __alloc_pages_nodemask+0x22c/0x2720 mm/page_alloc.c:4179 __alloc_pages include/linux/gfp.h:484 [inline] __alloc_pages_node include/linux/gfp.h:497 [inline] kmem_getpages mm/slab.c:1419 [inline] cache_grow_begin+0x91/0x700 mm/slab.c:2676 cache_alloc_refill+0x273/0x350 mm/slab.c:3043 ____cache_alloc mm/slab.c:3125 [inline] __do_cache_alloc mm/slab.c:3347 [inline] slab_alloc mm/slab.c:3382 [inline] kmem_cache_alloc+0x333/0x3c0 mm/slab.c:3550 getname_flags+0xc8/0x550 fs/namei.c:138 do_sys_open+0x1ce/0x410 fs/open.c:1075 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7fe069c54a04 RSP: 002b:00007fe068c16ed0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fe069ceb9c8 RCX: 00007fe069c54a04 RDX: 0000000000000002 RSI: 00007fe068c17000 RDI: 00000000ffffff9c RBP: 00007fe068c17000 R08: 0000000000000000 R09: ffffffffffffffff R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002 R13: 0000000000000004 R14: 0000000020000540 R15: 0000000000000000 EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue MINIX-fs: deleted inode referenced: 1 MINIX-fs: get root inode failed f2fs_msg: 90 callbacks suppressed F2FS-fs (loop2): Unable to read 1th superblock F2FS-fs (loop2): Unable to read 2th superblock F2FS-fs (loop2): Unable to read 1th superblock F2FS-fs (loop2): Unable to read 2th superblock VFS: unable to find oldfs superblock on device loop4 MINIX-fs: deleted inode referenced: 1 MINIX-fs: get root inode failed F2FS-fs (loop2): Unable to read 1th superblock F2FS-fs (loop2): Unable to read 2th superblock F2FS-fs (loop2): Unable to read 1th superblock F2FS-fs (loop2): Unable to read 2th superblock print_req_error: 11 callbacks suppressed print_req_error: I/O error, dev loop3, sector 0 buffer_io_error: 6 callbacks suppressed Buffer I/O error on dev loop3, logical block 0, async page read FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 11379 Comm: syz-executor.4 Not tainted 4.14.256-syzkaller #0 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+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x28e/0x3c0 mm/slab.c:3550 kmem_cache_zalloc include/linux/slab.h:651 [inline] get_empty_filp+0x86/0x3f0 fs/file_table.c:123 path_openat+0x84/0x2970 fs/namei.c:3545 do_filp_open+0x179/0x3c0 fs/namei.c:3603 do_sys_open+0x296/0x410 fs/open.c:1081 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7fe069c54a04 RSP: 002b:00007fe068c16ed0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fe069ceb9c8 RCX: 00007fe069c54a04 RDX: 0000000000000002 RSI: 00007fe068c17000 RDI: 00000000ffffff9c RBP: 00007fe068c17000 R08: 0000000000000000 R09: ffffffffffffffff R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002 R13: 0000000000000004 R14: 0000000020000540 R15: 0000000000000000 F2FS-fs (loop2): Unable to read 1th superblock F2FS-fs (loop2): Unable to read 2th superblock MINIX-fs: deleted inode referenced: 1 MINIX-fs: get root inode failed FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 print_req_error: I/O error, dev loop2, sector 0 Buffer I/O error on dev loop2, logical block 0, async page read EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue CPU: 1 PID: 11405 Comm: syz-executor.4 Not tainted 4.14.256-syzkaller #0 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+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc_trace+0x29a/0x3d0 mm/slab.c:3616 kmalloc include/linux/slab.h:488 [inline] __kthread_create_on_node+0xbe/0x3a0 kernel/kthread.c:277 kthread_create_on_node+0xa8/0xd0 kernel/kthread.c:365 loop_prepare_queue drivers/block/loop.c:877 [inline] loop_set_fd drivers/block/loop.c:922 [inline] lo_ioctl+0xcd9/0x1cd0 drivers/block/loop.c:1417 __blkdev_driver_ioctl block/ioctl.c:297 [inline] blkdev_ioctl+0x540/0x1830 block/ioctl.c:594 block_ioctl+0xd9/0x120 fs/block_dev.c:1893 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 MINIX-fs: deleted inode referenced: 1 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 MINIX-fs: get root inode failed do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7fe069ca18a7 RSP: 002b:00007fe068c16f48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fe069ceb9c8 RCX: 00007fe069ca18a7 RDX: 0000000000000004 RSI: 0000000000004c00 RDI: 0000000000000005 RBP: 0000000000000005 R08: 0000000000000000 R09: ffffffffffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 R13: 0000000000000004 R14: 0000000020000540 R15: 0000000000000000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 11449 Comm: syz-executor.4 Not tainted 4.14.256-syzkaller #0 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+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc_trace+0x29a/0x3d0 mm/slab.c:3616 kmalloc include/linux/slab.h:488 [inline] __kthread_create_on_node+0xbe/0x3a0 kernel/kthread.c:277 kthread_create_on_node+0xa8/0xd0 kernel/kthread.c:365 loop_prepare_queue drivers/block/loop.c:877 [inline] loop_set_fd drivers/block/loop.c:922 [inline] lo_ioctl+0xcd9/0x1cd0 drivers/block/loop.c:1417 __blkdev_driver_ioctl block/ioctl.c:297 [inline] blkdev_ioctl+0x540/0x1830 block/ioctl.c:594 block_ioctl+0xd9/0x120 fs/block_dev.c:1893 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7fe069ca18a7 RSP: 002b:00007fe068c16f48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fe069ceb9c8 RCX: 00007fe069ca18a7 RDX: 0000000000000004 RSI: 0000000000004c00 RDI: 0000000000000005 RBP: 0000000000000005 R08: 0000000000000000 R09: ffffffffffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 R13: 0000000000000004 R14: 0000000020000540 R15: 0000000000000000 print_req_error: I/O error, dev loop2, sector 0 Buffer I/O error on dev loop2, logical block 0, async page read MINIX-fs: deleted inode referenced: 1 MINIX-fs: get root inode failed FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 11487 Comm: syz-executor.4 Not tainted 4.14.256-syzkaller #0 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+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x28e/0x3c0 mm/slab.c:3550 kmem_cache_zalloc include/linux/slab.h:651 [inline] __kernfs_new_node+0x6f/0x470 fs/kernfs/dir.c:632 kernfs_new_node+0x7b/0xe0 fs/kernfs/dir.c:677 __kernfs_create_file+0x3d/0x320 fs/kernfs/file.c:989 sysfs_add_file_mode_ns+0x1e1/0x450 fs/sysfs/file.c:308 EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue create_files fs/sysfs/group.c:64 [inline] internal_create_group+0x22b/0x710 fs/sysfs/group.c:134 loop_sysfs_init drivers/block/loop.c:821 [inline] loop_set_fd drivers/block/loop.c:946 [inline] lo_ioctl+0x1137/0x1cd0 drivers/block/loop.c:1417 __blkdev_driver_ioctl block/ioctl.c:297 [inline] blkdev_ioctl+0x540/0x1830 block/ioctl.c:594 block_ioctl+0xd9/0x120 fs/block_dev.c:1893 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7fe069ca18a7 RSP: 002b:00007fe068c16f48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fe069ceb9c8 RCX: 00007fe069ca18a7 RDX: 0000000000000004 RSI: 0000000000004c00 RDI: 0000000000000005 RBP: 0000000000000005 R08: 0000000000000000 R09: ffffffffffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 R13: 0000000000000004 R14: 0000000020000540 R15: 0000000000000000 VFS: unable to find oldfs superblock on device loop4 print_req_error: I/O error, dev loop3, sector 0 Buffer I/O error on dev loop3, logical block 0, async page read print_req_error: I/O error, dev loop2, sector 0 Buffer I/O error on dev loop2, logical block 0, async page read EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 11520 Comm: syz-executor.4 Not tainted 4.14.256-syzkaller #0 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 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+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x40/0x3c0 mm/slab.c:3550 radix_tree_node_alloc.constprop.0+0x1b0/0x2f0 lib/radix-tree.c:397 idr_get_free_cmn+0x595/0x8d0 lib/radix-tree.c:2170 idr_get_free include/linux/radix-tree.h:369 [inline] idr_alloc_cmn+0xe8/0x1e0 lib/idr.c:24 idr_alloc include/linux/idr.h:116 [inline] idr_alloc_cyclic+0xc2/0x1d0 lib/idr.c:56 __kernfs_new_node+0xaf/0x470 fs/kernfs/dir.c:638 kernfs_new_node fs/kernfs/dir.c:677 [inline] kernfs_create_dir_ns+0x8c/0x200 fs/kernfs/dir.c:998 kernfs_create_dir include/linux/kernfs.h:502 [inline] internal_create_group+0xe9/0x710 fs/sysfs/group.c:124 loop_sysfs_init drivers/block/loop.c:821 [inline] loop_set_fd drivers/block/loop.c:946 [inline] lo_ioctl+0x1137/0x1cd0 drivers/block/loop.c:1417 __blkdev_driver_ioctl block/ioctl.c:297 [inline] blkdev_ioctl+0x540/0x1830 block/ioctl.c:594 block_ioctl+0xd9/0x120 fs/block_dev.c:1893 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7fe069ca18a7 RSP: 002b:00007fe068c16f48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fe069ceb9c8 RCX: 00007fe069ca18a7 RDX: 0000000000000004 RSI: 0000000000004c00 RDI: 0000000000000005 RBP: 0000000000000005 R08: 0000000000000000 R09: ffffffffffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 R13: 0000000000000004 R14: 0000000020000540 R15: 0000000000000000 CPU: 1 PID: 11529 Comm: syz-executor.1 Not tainted 4.14.256-syzkaller #0 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+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc_trace+0x29a/0x3d0 mm/slab.c:3616 kmalloc include/linux/slab.h:488 [inline] kzalloc include/linux/slab.h:661 [inline] perf_event_alloc.part.0+0x5b/0x2640 kernel/events/core.c:9554 perf_event_alloc kernel/events/core.c:10022 [inline] SYSC_perf_event_open kernel/events/core.c:10126 [inline] SyS_perf_event_open+0x67f/0x24b0 kernel/events/core.c:10012 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f9bd6e2cae9 RSP: 002b:00007f9bd5da2188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f9bd6f3ff60 RCX: 00007f9bd6e2cae9 RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 00000000200000c0 RBP: 00007f9bd5da21d0 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffe957eb4af R14: 00007f9bd5da2300 R15: 0000000000022000 MINIX-fs: deleted inode referenced: 1 VFS: unable to find oldfs superblock on device loop4 MINIX-fs: get root inode failed netlink: 76 bytes leftover after parsing attributes in process `syz-executor.5'. FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue print_req_error: I/O error, dev loop3, sector 0 Buffer I/O error on dev loop3, logical block 0, async page read FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 11556 Comm: syz-executor.4 Not tainted 4.14.256-syzkaller #0 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+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x28e/0x3c0 mm/slab.c:3550 kmem_cache_zalloc include/linux/slab.h:651 [inline] __kernfs_new_node+0x6f/0x470 fs/kernfs/dir.c:632 kernfs_new_node+0x7b/0xe0 fs/kernfs/dir.c:677 __kernfs_create_file+0x3d/0x320 fs/kernfs/file.c:989 sysfs_add_file_mode_ns+0x1e1/0x450 fs/sysfs/file.c:308 create_files fs/sysfs/group.c:64 [inline] internal_create_group+0x22b/0x710 fs/sysfs/group.c:134 loop_sysfs_init drivers/block/loop.c:821 [inline] loop_set_fd drivers/block/loop.c:946 [inline] lo_ioctl+0x1137/0x1cd0 drivers/block/loop.c:1417 __blkdev_driver_ioctl block/ioctl.c:297 [inline] blkdev_ioctl+0x540/0x1830 block/ioctl.c:594 block_ioctl+0xd9/0x120 fs/block_dev.c:1893 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7fe069ca18a7 RSP: 002b:00007fe068c16f48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fe069ceb9c8 RCX: 00007fe069ca18a7 RDX: 0000000000000004 RSI: 0000000000004c00 RDI: 0000000000000005 RBP: 0000000000000005 R08: 0000000000000000 R09: ffffffffffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 R13: 0000000000000004 R14: 0000000020000540 R15: 0000000000000000 CPU: 1 PID: 11545 Comm: syz-executor.1 Not tainted 4.14.256-syzkaller #0 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+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x28e/0x3c0 mm/slab.c:3550 __d_alloc+0x2a/0xa20 fs/dcache.c:1623 anon_inode_getfile+0x101/0x2f0 fs/anon_inodes.c:92 SYSC_perf_event_open kernel/events/core.c:10245 [inline] SyS_perf_event_open+0xb90/0x24b0 kernel/events/core.c:10012 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f9bd6e2cae9 RSP: 002b:00007f9bd5da2188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f9bd6f3ff60 RCX: 00007f9bd6e2cae9 RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 00000000200000c0 RBP: 00007f9bd5da21d0 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffe957eb4af R14: 00007f9bd5da2300 R15: 0000000000022000 MINIX-fs: deleted inode referenced: 1