====================================================== WARNING: possible circular locking dependency detected 4.14.290-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.3/11013 is trying to acquire lock: ((&strp->work)){+.+.}, at: [] flush_work+0x88/0x770 kernel/workqueue.c:2887 but task is already holding lock: (sk_lock-AF_INET){+.+.}, at: [] lock_sock include/net/sock.h:1473 [inline] (sk_lock-AF_INET){+.+.}, at: [] kcm_attach net/kcm/kcmsock.c:1390 [inline] (sk_lock-AF_INET){+.+.}, at: [] kcm_attach_ioctl net/kcm/kcmsock.c:1490 [inline] (sk_lock-AF_INET){+.+.}, at: [] kcm_ioctl+0x328/0xfb0 net/kcm/kcmsock.c:1701 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (sk_lock-AF_INET){+.+.}: lock_sock_nested+0xb7/0x100 net/core/sock.c:2813 9pnet: p9_fd_create_unix (11039): problem connecting socket: ./file2: -2 do_strp_work net/strparser/strparser.c:415 [inline] strp_work+0x3e/0x100 net/strparser/strparser.c:434 process_one_work+0x793/0x14a0 kernel/workqueue.c:2117 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2251 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 -> #0 ((&strp->work)){+.+.}: lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 flush_work+0xad/0x770 kernel/workqueue.c:2890 __cancel_work_timer+0x321/0x460 kernel/workqueue.c:2965 strp_done+0x53/0xd0 net/strparser/strparser.c:519 kcm_attach net/kcm/kcmsock.c:1429 [inline] kcm_attach_ioctl net/kcm/kcmsock.c:1490 [inline] kcm_ioctl+0x828/0xfb0 net/kcm/kcmsock.c:1701 sock_do_ioctl net/socket.c:974 [inline] sock_ioctl+0x2cc/0x4c0 net/socket.c:1071 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 other info that might help us debug this: Possible unsafe locking scenario: netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'. CPU0 CPU1 ---- ---- lock(sk_lock-AF_INET); lock((&strp->work)); lock(sk_lock-AF_INET); lock((&strp->work)); netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. *** DEADLOCK *** 1 lock held by syz-executor.3/11013: #0: (sk_lock-AF_INET){+.+.}, at: [] lock_sock include/net/sock.h:1473 [inline] #0: (sk_lock-AF_INET){+.+.}, at: [] kcm_attach net/kcm/kcmsock.c:1390 [inline] #0: (sk_lock-AF_INET){+.+.}, at: [] kcm_attach_ioctl net/kcm/kcmsock.c:1490 [inline] #0: (sk_lock-AF_INET){+.+.}, at: [] kcm_ioctl+0x328/0xfb0 net/kcm/kcmsock.c:1701 stack backtrace: CPU: 1 PID: 11013 Comm: syz-executor.3 Not tainted 4.14.290-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 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 flush_work+0xad/0x770 kernel/workqueue.c:2890 __cancel_work_timer+0x321/0x460 kernel/workqueue.c:2965 strp_done+0x53/0xd0 net/strparser/strparser.c:519 kcm_attach net/kcm/kcmsock.c:1429 [inline] kcm_attach_ioctl net/kcm/kcmsock.c:1490 [inline] kcm_ioctl+0x828/0xfb0 net/kcm/kcmsock.c:1701 sock_do_ioctl net/socket.c:974 [inline] sock_ioctl+0x2cc/0x4c0 net/socket.c:1071 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: 0033:0x7f984cbdb279 RSP: 002b:00007f984b50e168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f984ccee120 RCX: 00007f984cbdb279 RDX: 0000000020000040 RSI: 00000000000089e0 RDI: 0000000000000003 RBP: 00007f984cc35189 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdbad7815f R14: 00007f984b50e300 R15: 0000000000022000 EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue batman_adv: Cannot find parent device device gretap1 entered promiscuous mode batman_adv: Cannot find parent device device gretap1 entered promiscuous mode batman_adv: Cannot find parent device device gretap1 entered promiscuous mode 9pnet: p9_fd_create_unix (11123): problem connecting socket: ./file2: -2 EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue __quota_error: 3 callbacks suppressed Quota error (device loop3): find_tree_dqentry: Getting block too big (3215100162 >= 6) batman_adv: Cannot find parent device device gretap1 entered promiscuous mode Quota error (device loop3): qtree_read_dquot: Can't read quota structure for id 0 tmpfs: Bad value 'locad=relative' for mount option 'mpol' EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. EXT4-fs (loop2): mounting ext2 file system using the ext4 subsystem EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs error (device loop2): ext4_fill_super:4382: inode #2: comm syz-executor.2: iget: root inode unallocated EXT4-fs (loop2): get root inode failed EXT4-fs (loop2): mount failed input: syz0 as /devices/virtual/input/input5 audit: type=1804 audit(1660147520.726:28): pid=11205 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.2" name="/root/syzkaller-testdir3323974568/syzkaller.pcZd8W/36/file0/bus" dev="sda1" ino=13952 res=1 input: syz0 as /devices/virtual/input/input6 input: syz0 as /devices/virtual/input/input7 input: syz0 as /devices/virtual/input/input8 input: syz0 as /devices/virtual/input/input9 EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue uinput: write device info first input: syz0 as /devices/virtual/input/input10 overlayfs: fs on 'file0' does not support file handles, falling back to index=off. EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue overlayfs: fs on '.' does not support file handles, falling back to index=off. EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue input: syz0 as /devices/virtual/input/input11 EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs (loop2): mounting ext2 file system using the ext4 subsystem overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. EXT4-fs error (device loop2): ext4_fill_super:4382: inode #2: comm syz-executor.2: iget: root inode unallocated overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. EXT4-fs (loop2): get root inode failed audit: type=1804 audit(1660147521.576:29): pid=11390 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.2" name="/root/syzkaller-testdir3323974568/syzkaller.pcZd8W/37/file0/bus" dev="sda1" ino=14032 res=1 overlayfs: fs on './file0' does not support file handles, falling back to index=off. EXT4-fs (loop2): mount failed input: syz0 as /devices/virtual/input/input12 overlayfs: failed to resolve './file1': -2 input: syz0 as /devices/virtual/input/input13 uinput: write device info first uinput: write device info first audit: type=1804 audit(1660147521.846:30): pid=11449 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.2" name="/root/syzkaller-testdir3323974568/syzkaller.pcZd8W/38/bus" dev="sda1" ino=14028 res=1 input: syz0 as /devices/virtual/input/input16 uinput: write device info first input: syz0 as /devices/virtual/input/input18 EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue input: syz0 as /devices/virtual/input/input19 EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value overlayfs: fs on './file0' does not support file handles, falling back to index=off. input: syz0 as /devices/virtual/input/input20 uinput: write device info first overlayfs: fs on 'file0' does not support file handles, falling back to index=off. EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue uinput: write device info first overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. uinput: write device info first overlayfs: fs on 'file0' does not support file handles, falling back to index=off. EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: 'file0' not a directory uinput: write device info first overlayfs: 'file0' not a directory overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: 'file0' not a directory overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: 'file0' not a directory overlayfs: 'file0' not a directory overlayfs: 'file0' not a directory overlayfs: 'file0' not a directory overlayfs: 'file0' not a directory overlayfs: 'file0' not a directory overlayfs: 'file0' not a directory overlayfs: 'file0' not a directory overlayfs: 'file0' not a directory overlayfs: 'file0' not a directory overlayfs: 'file0' not a directory overlayfs: 'file0' not a directory overlayfs: 'file0' not a directory overlayfs: 'file0' not a directory overlayfs: 'file0' not a directory overlayfs: 'file0' not a directory overlayfs: 'file0' not a directory overlayfs: 'file0' not a directory overlayfs: 'file0' not a directory overlayfs: 'file0' not a directory overlayfs: 'file0' not a directory overlayfs: 'file0' not a directory overlayfs: 'file0' not a directory uinput: write device info first overlayfs: 'file0' not a directory uinput: write device info first overlayfs: 'file0' not a directory overlayfs: 'file0' not a directory overlayfs: 'file0' not a directory overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: 'file0' not a directory overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value uinput: write device info first overlayfs: fs on 'file0' does not support file handles, falling back to index=off. EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value overlayfs: fs on '.' does not support file handles, falling back to index=off. uinput: write device info first overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. uinput: write device info first overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value uinput: write device info first overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. uinput: write device info first uinput: write device info first EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. uinput: write device info first uinput: write device info first overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value overlayfs: fs on './file0' does not support file handles, falling back to index=off. uinput: write device info first input: syz0 as /devices/virtual/input/input36 overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value overlayfs: fs on './file0' does not support file handles, falling back to index=off. uinput: write device info first EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue input: syz0 as /devices/virtual/input/input38 overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value overlayfs: fs on './file0' does not support file handles, falling back to index=off. input: syz0 as /devices/virtual/input/input39 overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value uinput: write device info first overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value overlayfs: fs on './file0' does not support file handles, falling back to index=off. uinput: write device info first EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. uinput: write device info first overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value overlayfs: fs on './file0' does not support file handles, falling back to index=off. uinput: write device info first overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value overlayfs: fs on 'file0' does not support file handles, falling back to index=off. uinput: write device info first overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. input: syz0 as /devices/virtual/input/input48 overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. input: syz0 as /devices/virtual/input/input49 overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value input: syz0 as /devices/virtual/input/input50 EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 1 overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. CPU: 1 PID: 11980 Comm: syz-executor.2 Not tainted 4.14.290-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 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] kzalloc include/linux/slab.h:661 [inline] input_ff_create+0x4b/0x2d0 drivers/input/ff-core.c:338 uinput_create_device drivers/input/misc/uinput.c:307 [inline] uinput_ioctl_handler.isra.0+0x6fd/0x1790 drivers/input/misc/uinput.c:839 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: 0033:0x7f339bd86279 RSP: 002b:00007f339a6fb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f339be98f80 RCX: 00007f339bd86279 RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000003 RBP: 00007f339a6fb1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffdb831a99f R14: 00007f339a6fb300 R15: 0000000000022000 overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. CPU: 0 PID: 12010 Comm: syz-executor.2 Not tainted 4.14.290-syzkaller #0 overlayfs: fs on 'file0' does not support file handles, falling back to index=off. Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 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_array include/linux/slab.h:607 [inline] kcalloc include/linux/slab.h:618 [inline] input_ff_create+0x80/0x2d0 drivers/input/ff-core.c:342 uinput_create_device drivers/input/misc/uinput.c:307 [inline] uinput_ioctl_handler.isra.0+0x6fd/0x1790 drivers/input/misc/uinput.c:839 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 overlayfs: fs on 'file0' does not support file handles, falling back to index=off. 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: 0033:0x7f339bd86279 RSP: 002b:00007f339a6fb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f339be98f80 RCX: 00007f339bd86279 RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000003 RBP: 00007f339a6fb1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffdb831a99f R14: 00007f339a6fb300 R15: 0000000000022000 overlayfs: fs on 'file0' does not support file handles, falling back to index=off. FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 12033 Comm: syz-executor.2 Not tainted 4.14.290-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 overlayfs: fs on 'file0' does not support file handles, falling back to index=off. 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_array include/linux/slab.h:607 [inline] kcalloc include/linux/slab.h:618 [inline] input_register_device+0x419/0xa90 drivers/input/input.c:2150 uinput_create_device drivers/input/misc/uinput.c:324 [inline] uinput_ioctl_handler.isra.0+0x84c/0x1790 drivers/input/misc/uinput.c:839 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: 0033:0x7f339bd86279 RSP: 002b:00007f339a6fb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f339be98f80 RCX: 00007f339bd86279 RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000003 RBP: 00007f339a6fb1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffdb831a99f R14: 00007f339a6fb300 R15: 0000000000022000 overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value CPU: 1 PID: 12081 Comm: syz-executor.2 Not tainted 4.14.290-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 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] device_private_init drivers/base/core.c:1799 [inline] device_add+0xd72/0x15c0 drivers/base/core.c:1844 input_register_device+0x59e/0xa90 drivers/input/input.c:2169 uinput_create_device drivers/input/misc/uinput.c:324 [inline] uinput_ioctl_handler.isra.0+0x84c/0x1790 drivers/input/misc/uinput.c:839 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: 0033:0x7f339bd86279 RSP: 002b:00007f339a6fb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f339be98f80 RCX: 00007f339bd86279 RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000003 RBP: 00007f339a6fb1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 overlayfs: fs on 'file0' does not support file handles, falling back to index=off. R13: 00007ffdb831a99f R14: 00007f339a6fb300 R15: 0000000000022000 overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 overlayfs: fs on 'file0' does not support file handles, falling back to index=off. CPU: 1 PID: 12129 Comm: syz-executor.2 Not tainted 4.14.290-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value 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 overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value should_failslab+0xd6/0x130 mm/failslab.c:32 overlayfs: fs on './file0' does not support file handles, falling back to index=off. slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] __do_kmalloc mm/slab.c:3718 [inline] __kmalloc_track_caller+0x2bc/0x400 mm/slab.c:3735 kstrdup+0x36/0x70 mm/util.c:57 kstrdup_const+0x35/0x60 mm/util.c:78 __kernfs_new_node+0x2e/0x470 fs/kernfs/dir.c:636 kernfs_new_node fs/kernfs/dir.c:685 [inline] kernfs_create_dir_ns+0x8c/0x200 fs/kernfs/dir.c:1005 sysfs_create_dir_ns+0xb7/0x1d0 fs/sysfs/dir.c:55 create_dir lib/kobject.c:71 [inline] kobject_add_internal+0x28b/0x930 lib/kobject.c:229 kobject_add_varg lib/kobject.c:364 [inline] kobject_add+0x11f/0x180 lib/kobject.c:409 device_add+0x33f/0x15c0 drivers/base/core.c:1885 input_register_device+0x59e/0xa90 drivers/input/input.c:2169 uinput_create_device drivers/input/misc/uinput.c:324 [inline] uinput_ioctl_handler.isra.0+0x84c/0x1790 drivers/input/misc/uinput.c:839 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: 0033:0x7f339bd86279 RSP: 002b:00007f339a6fb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f339be98f80 RCX: 00007f339bd86279 RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000003 RBP: 00007f339a6fb1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffdb831a99f R14: 00007f339a6fb300 R15: 0000000000022000 kobject_add_internal failed for input58 (error: -12 parent: input) overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value CPU: 0 PID: 12158 Comm: syz-executor.2 Not tainted 4.14.290-syzkaller #0 overlayfs: fs on './file0' does not support file handles, falling back to index=off. Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 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:640 kernfs_new_node fs/kernfs/dir.c:685 [inline] kernfs_create_dir_ns+0x8c/0x200 fs/kernfs/dir.c:1005 sysfs_create_dir_ns+0xb7/0x1d0 fs/sysfs/dir.c:55 create_dir lib/kobject.c:71 [inline] kobject_add_internal+0x28b/0x930 lib/kobject.c:229 kobject_add_varg lib/kobject.c:364 [inline] kobject_add+0x11f/0x180 lib/kobject.c:409 device_add+0x33f/0x15c0 drivers/base/core.c:1885 EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue input_register_device+0x59e/0xa90 drivers/input/input.c:2169 uinput_create_device drivers/input/misc/uinput.c:324 [inline] uinput_ioctl_handler.isra.0+0x84c/0x1790 drivers/input/misc/uinput.c:839 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: 0033:0x7f339bd86279 RSP: 002b:00007f339a6fb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f339be98f80 RCX: 00007f339bd86279 RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000003 RBP: 00007f339a6fb1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffdb831a99f R14: 00007f339a6fb300 R15: 0000000000022000 kobject_add_internal failed for input59 (error: -12 parent: input) FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 overlayfs: fs on 'file0' does not support file handles, falling back to index=off. CPU: 0 PID: 12180 Comm: syz-executor.2 Not tainted 4.14.290-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value 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 overlayfs: fs on './file0' does not support file handles, falling back to index=off. 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:640 kernfs_new_node+0x7b/0xe0 fs/kernfs/dir.c:685 __kernfs_create_file+0x3d/0x320 fs/kernfs/file.c:989 sysfs_add_file_mode_ns+0x1e1/0x450 fs/sysfs/file.c:308 sysfs_create_file include/linux/sysfs.h:531 [inline] device_create_file+0xc8/0x100 drivers/base/core.c:1335 device_add+0x37a/0x15c0 drivers/base/core.c:1895 input_register_device+0x59e/0xa90 drivers/input/input.c:2169 uinput_create_device drivers/input/misc/uinput.c:324 [inline] uinput_ioctl_handler.isra.0+0x84c/0x1790 drivers/input/misc/uinput.c:839 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: 0033:0x7f339bd86279 RSP: 002b:00007f339a6fb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f339be98f80 RCX: 00007f339bd86279 RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000003 RBP: 00007f339a6fb1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffdb831a99f R14: 00007f339a6fb300 R15: 0000000000022000 overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value CPU: 0 PID: 12194 Comm: syz-executor.2 Not tainted 4.14.290-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 EXT4-fs (loop1): 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 overlayfs: fs on '.' does not support file handles, falling back to index=off. kmem_cache_zalloc include/linux/slab.h:651 [inline] __kernfs_new_node+0x6f/0x470 fs/kernfs/dir.c:640 kernfs_new_node+0x7b/0xe0 fs/kernfs/dir.c:685 overlayfs: fs on './file0' does not support file handles, falling back to index=off. kernfs_create_link+0x27/0x160 fs/kernfs/symlink.c:32 sysfs_do_create_link_sd+0x90/0x120 fs/sysfs/symlink.c:44 sysfs_do_create_link fs/sysfs/symlink.c:80 [inline] sysfs_create_link+0x5f/0xc0 fs/sysfs/symlink.c:92 device_add_class_symlinks drivers/base/core.c:1677 [inline] device_add+0x461/0x15c0 drivers/base/core.c:1899 input_register_device+0x59e/0xa90 drivers/input/input.c:2169 uinput_create_device drivers/input/misc/uinput.c:324 [inline] uinput_ioctl_handler.isra.0+0x84c/0x1790 drivers/input/misc/uinput.c:839 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value overlayfs: fs on './file0' does not support file handles, falling back to index=off. 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: 0033:0x7f339bd86279 RSP: 002b:00007f339a6fb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f339be98f80 RCX: 00007f339bd86279 RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000003 RBP: 00007f339a6fb1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffdb831a99f R14: 00007f339a6fb300 R15: 0000000000022000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. CPU: 1 PID: 12233 Comm: syz-executor.2 Not tainted 4.14.290-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 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 overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value 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:640 overlayfs: fs on './file0' does not support file handles, falling back to index=off. kernfs_new_node+0x7b/0xe0 fs/kernfs/dir.c:685 __kernfs_create_file+0x3d/0x320 fs/kernfs/file.c:989 sysfs_add_file_mode_ns+0x1e1/0x450 fs/sysfs/file.c:308 overlayfs: fs on 'file0' does not support file handles, falling back to index=off. sysfs_create_file include/linux/sysfs.h:531 [inline] device_create_file+0xc8/0x100 drivers/base/core.c:1335 device_add+0x37a/0x15c0 drivers/base/core.c:1895 input_register_device+0x59e/0xa90 drivers/input/input.c:2169 uinput_create_device drivers/input/misc/uinput.c:324 [inline] uinput_ioctl_handler.isra.0+0x84c/0x1790 drivers/input/misc/uinput.c:839 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: 0033:0x7f339bd86279 RSP: 002b:00007f339a6fb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f339be98f80 RCX: 00007f339bd86279 RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000003 RBP: 00007f339a6fb1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffdb831a99f R14: 00007f339a6fb300 R15: 0000000000022000 EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value CPU: 0 PID: 12261 Comm: syz-executor.2 Not tainted 4.14.290-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 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:640 kernfs_new_node+0x7b/0xe0 fs/kernfs/dir.c:685 kernfs_create_link+0x27/0x160 fs/kernfs/symlink.c:32 sysfs_do_create_link_sd+0x90/0x120 fs/sysfs/symlink.c:44 sysfs_do_create_link fs/sysfs/symlink.c:80 [inline] sysfs_create_link+0x5f/0xc0 fs/sysfs/symlink.c:92 device_add_class_symlinks drivers/base/core.c:1697 [inline] device_add+0x749/0x15c0 drivers/base/core.c:1899 input_register_device+0x59e/0xa90 drivers/input/input.c:2169 uinput_create_device drivers/input/misc/uinput.c:324 [inline] uinput_ioctl_handler.isra.0+0x84c/0x1790 drivers/input/misc/uinput.c:839 overlayfs: fs on './file0' does not support file handles, falling back to index=off. 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: 0033:0x7f339bd86279 RSP: 002b:00007f339a6fb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f339be98f80 RCX: 00007f339bd86279 RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000003 RBP: 00007f339a6fb1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffdb831a99f R14: 00007f339a6fb300 R15: 0000000000022000 overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: unrecognized mount option "fsuuid=a8e0b6c4-948" or missing value overlayfs: fs on 'file0' does not support file handles, falling back to index=off. FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 overlayfs: fs on './file0' does not support file handles, falling back to index=off. EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue CPU: 0 PID: 12295 Comm: syz-executor.2 Not tainted 4.14.290-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 overlayfs: fs on '.' does not support file handles, falling back to index=off. Call Trace: