======================================================
WARNING: possible circular locking dependency detected
4.14.290-syzkaller #0 Not tainted
------------------------------------------------------
kworker/u4:2/35 is trying to acquire lock:
 (sk_lock-AF_INET){+.+.}, at: [<ffffffff8681ee3e>] do_strp_work net/strparser/strparser.c:415 [inline]
 (sk_lock-AF_INET){+.+.}, at: [<ffffffff8681ee3e>] strp_work+0x3e/0x100 net/strparser/strparser.c:434

but task is already holding lock:
 ((&strp->work)){+.+.}, at: [<ffffffff81364ee6>] process_one_work+0x6e6/0x14a0 kernel/workqueue.c:2092

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #1 ((&strp->work)){+.+.}:
       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

-> #0 (sk_lock-AF_INET){+.+.}:
       lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998
       lock_sock_nested+0xb7/0x100 net/core/sock.c:2813
       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

other info that might help us debug this:

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock((&strp->work));
                               lock(sk_lock-AF_INET);
                               lock((&strp->work));
  lock(sk_lock-AF_INET);

 *** DEADLOCK ***

2 locks held by kworker/u4:2/35:
 #0:  ("%s""kstrp"){+.+.}, at: [<ffffffff81364eb0>] process_one_work+0x6b0/0x14a0 kernel/workqueue.c:2088
 #1:  ((&strp->work)){+.+.}, at: [<ffffffff81364ee6>] process_one_work+0x6e6/0x14a0 kernel/workqueue.c:2092

stack backtrace:
CPU: 1 PID: 35 Comm: kworker/u4:2 Not tainted 4.14.290-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
Workqueue: kstrp strp_work
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
 lock_sock_nested+0xb7/0x100 net/core/sock.c:2813
 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
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'.
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
8021q: adding VLAN 0 to HW filter on device team0
bond0: Enslaving team0 as an active interface with an up link
bond0: Releasing backup interface team0
bridge0: port 3(team0) entered blocking state
bridge0: port 3(team0) entered disabled state
device team0 entered promiscuous mode
device team_slave_0 entered promiscuous mode
device team_slave_1 entered promiscuous mode
device team0 left promiscuous mode
device team_slave_0 left promiscuous mode
device team_slave_1 left promiscuous mode
bridge0: port 3(team0) entered disabled state
8021q: adding VLAN 0 to HW filter on device team0
bond0: Enslaving team0 as an active interface with an up link
bond0: Releasing backup interface team0
bridge0: port 3(team0) entered blocking state
bridge0: port 3(team0) entered disabled state
device team0 entered promiscuous mode
device team_slave_0 entered promiscuous mode
device team_slave_1 entered promiscuous mode
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'.
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'.
device team0 left promiscuous mode
device team_slave_0 left promiscuous mode
device team_slave_1 left promiscuous mode
bridge0: port 3(team0) entered disabled state
8021q: adding VLAN 0 to HW filter on device team0
bond0: Enslaving team0 as an active interface with an up link
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'.
device team0 left promiscuous mode
device team_slave_0 left promiscuous mode
device team_slave_1 left promiscuous mode
bridge0: port 3(team0) entered disabled state
8021q: adding VLAN 0 to HW filter on device team0
bond0: Enslaving team0 as an active interface with an up link
bond0: Releasing backup interface team0
bridge0: port 3(team0) entered blocking state
bridge0: port 3(team0) entered disabled state
device team0 entered promiscuous mode
device team_slave_0 entered promiscuous mode
device team_slave_1 entered promiscuous mode
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 1
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 1
CPU: 0 PID: 17005 Comm: syz-executor.0 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_track_caller+0x2bc/0x400 mm/slab.c:3735
 memdup_user+0x22/0xa0 mm/util.c:165
 strndup_user+0x5b/0xf0 mm/util.c:196
 copy_mount_string fs/namespace.c:2809 [inline]
 SYSC_mount fs/namespace.c:3106 [inline]
 SyS_mount+0x39/0x120 fs/namespace.c:3098
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f0b2e5bc279
RSP: 002b:00007f0b2cf31168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f0b2e6cef80 RCX: 00007f0b2e5bc279
RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007f0b2cf311d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffc2764f0bf R14: 00007f0b2cf31300 R15: 0000000000022000
CPU: 1 PID: 17007 Comm: syz-executor.5 Not tainted 4.14.290-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 1
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_track_caller+0x2bc/0x400 mm/slab.c:3735
 memdup_user+0x22/0xa0 mm/util.c:165
 strndup_user+0x5b/0xf0 mm/util.c:196
 copy_mount_string fs/namespace.c:2809 [inline]
 SYSC_mount fs/namespace.c:3106 [inline]
 SyS_mount+0x39/0x120 fs/namespace.c:3098
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f044bc90279
RSP: 002b:00007f044a605168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f044bda2f80 RCX: 00007f044bc90279
RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007f044a6051d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fff3dfa09ef R14: 00007f044a605300 R15: 0000000000022000
CPU: 0 PID: 17017 Comm: syz-executor.1 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_track_caller+0x2bc/0x400 mm/slab.c:3735
 memdup_user+0x22/0xa0 mm/util.c:165
 strndup_user+0x5b/0xf0 mm/util.c:196
 copy_mount_string fs/namespace.c:2809 [inline]
 SYSC_mount fs/namespace.c:3106 [inline]
 SyS_mount+0x39/0x120 fs/namespace.c:3098
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7fe22a04c279
RSP: 002b:00007fe2289a0168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
RAX: ffffffffffffffda RBX: 00007fe22a15f050 RCX: 00007fe22a04c279
RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007fe2289a01d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fff6838265f R14: 00007fe2289a0300 R15: 0000000000022000
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 17045 Comm: syz-executor.1 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
 getname_flags+0xc8/0x550 fs/namei.c:138
 user_path_at_empty+0x2a/0x50 fs/namei.c:2631
 user_path include/linux/namei.h:62 [inline]
 do_mount+0x118/0x2a30 fs/namespace.c:2845
 SYSC_mount fs/namespace.c:3121 [inline]
 SyS_mount+0xa8/0x120 fs/namespace.c:3098
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7fe22a04c279
RSP: 002b:00007fe2289c1168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fe22a15ef80 RCX: 00007fe22a04c279
RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007fe2289c11d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fff6838265f R14: 00007fe2289c1300 R15: 0000000000022000
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 17031 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
 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_track_caller+0x2bc/0x400 mm/slab.c:3735
 memdup_user+0x22/0xa0 mm/util.c:165
 strndup_user+0x5b/0xf0 mm/util.c:196
 copy_mount_string fs/namespace.c:2809 [inline]
 SYSC_mount fs/namespace.c:3106 [inline]
 SyS_mount+0x39/0x120 fs/namespace.c:3098
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f4b1f464279
RSP: 002b:00007f4b1ddd9168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f4b1f576f80 RCX: 00007f4b1f464279
RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007f4b1ddd91d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffd9946d7ef R14: 00007f4b1ddd9300 R15: 0000000000022000
CPU: 1 PID: 17052 Comm: syz-executor.0 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
 getname_flags+0xc8/0x550 fs/namei.c:138
 user_path_at_empty+0x2a/0x50 fs/namei.c:2631
 user_path include/linux/namei.h:62 [inline]
 do_mount+0x118/0x2a30 fs/namespace.c:2845
 SYSC_mount fs/namespace.c:3121 [inline]
 SyS_mount+0xa8/0x120 fs/namespace.c:3098
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f0b2e5bc279
RSP: 002b:00007f0b2cf10168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f0b2e6cf050 RCX: 00007f0b2e5bc279
RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007f0b2cf101d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffc2764f0bf R14: 00007f0b2cf10300 R15: 0000000000022000
CPU: 0 PID: 17044 Comm: syz-executor.5 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
FAULT_INJECTION: forcing a failure.
name fail_page_alloc, interval 1, probability 0, space 0, times 1
 getname_flags+0xc8/0x550 fs/namei.c:138
 user_path_at_empty+0x2a/0x50 fs/namei.c:2631
 user_path include/linux/namei.h:62 [inline]
 do_mount+0x118/0x2a30 fs/namespace.c:2845
 SYSC_mount fs/namespace.c:3121 [inline]
 SyS_mount+0xa8/0x120 fs/namespace.c:3098
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f044bc90279
RSP: 002b:00007f044a605168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f044bda2f80 RCX: 00007f044bc90279
RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007f044a6051d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fff3dfa09ef R14: 00007f044a605300 R15: 0000000000022000
CPU: 1 PID: 17068 Comm: syz-executor.1 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_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
 user_path_at_empty+0x2a/0x50 fs/namei.c:2631
 user_path include/linux/namei.h:62 [inline]
 do_mount+0x118/0x2a30 fs/namespace.c:2845
 SYSC_mount fs/namespace.c:3121 [inline]
 SyS_mount+0xa8/0x120 fs/namespace.c:3098
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7fe22a04c279
RSP: 002b:00007fe2289c1168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fe22a15ef80 RCX: 00007fe22a04c279
RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007fe2289c11d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fff6838265f R14: 00007fe2289c1300 R15: 0000000000022000
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
FAULT_INJECTION: forcing a failure.
name fail_page_alloc, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 17073 Comm: syz-executor.0 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_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
 user_path_at_empty+0x2a/0x50 fs/namei.c:2631
 user_path include/linux/namei.h:62 [inline]
 do_mount+0x118/0x2a30 fs/namespace.c:2845
 SYSC_mount fs/namespace.c:3121 [inline]
 SyS_mount+0xa8/0x120 fs/namespace.c:3098
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f0b2e5bc279
RSP: 002b:00007f0b2cf10168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f0b2e6cf050 RCX: 00007f0b2e5bc279
RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007f0b2cf101d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffc2764f0bf R14: 00007f0b2cf10300 R15: 0000000000022000
CPU: 0 PID: 17074 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
 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
 user_path_at_empty+0x2a/0x50 fs/namei.c:2631
 user_path include/linux/namei.h:62 [inline]
 do_mount+0x118/0x2a30 fs/namespace.c:2845
 SYSC_mount fs/namespace.c:3121 [inline]
 SyS_mount+0xa8/0x120 fs/namespace.c:3098
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f4b1f464279
RSP: 002b:00007f4b1ddb8168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f4b1f577050 RCX: 00007f4b1f464279
RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007f4b1ddb81d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffd9946d7ef R14: 00007f4b1ddb8300 R15: 0000000000022000
CPU: 0 PID: 17071 Comm: syz-executor.4 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_track_caller+0x2bc/0x400 mm/slab.c:3735
 memdup_user+0x22/0xa0 mm/util.c:165
 strndup_user+0x5b/0xf0 mm/util.c:196
 copy_mount_string fs/namespace.c:2809 [inline]
 SYSC_mount fs/namespace.c:3106 [inline]
 SyS_mount+0x39/0x120 fs/namespace.c:3098
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f03ffb63279
RSP: 002b:00007f03fe4d8168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f03ffc75f80 RCX: 00007f03ffb63279
RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007f03fe4d81d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffcb97c4d9f R14: 00007f03fe4d8300 R15: 0000000000022000
FAULT_INJECTION: forcing a failure.
name fail_page_alloc, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 17100 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
 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
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
 __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
 user_path_at_empty+0x2a/0x50 fs/namei.c:2631
 user_path include/linux/namei.h:62 [inline]
 do_mount+0x118/0x2a30 fs/namespace.c:2845
 SYSC_mount fs/namespace.c:3121 [inline]
 SyS_mount+0xa8/0x120 fs/namespace.c:3098
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f4b1f464279
RSP: 002b:00007f4b1ddd9168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f4b1f576f80 RCX: 00007f4b1f464279
RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007f4b1ddd91d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffd9946d7ef R14: 00007f4b1ddd9300 R15: 0000000000022000
CPU: 1 PID: 17101 Comm: syz-executor.0 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]
 alloc_vfsmnt+0x23/0x7f0 fs/namespace.c:205
 vfs_kern_mount.part.0+0x27/0x470 fs/namespace.c:1039
 vfs_kern_mount fs/namespace.c:1036 [inline]
 do_new_mount fs/namespace.c:2572 [inline]
 do_mount+0xe65/0x2a30 fs/namespace.c:2905
 SYSC_mount fs/namespace.c:3121 [inline]
 SyS_mount+0xa8/0x120 fs/namespace.c:3098
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f0b2e5bc279
RSP: 002b:00007f0b2cf31168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f0b2e6cef80 RCX: 00007f0b2e5bc279
RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007f0b2cf311d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffc2764f0bf R14: 00007f0b2cf31300 R15: 0000000000022000
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 17134 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_track_caller+0x2bc/0x400 mm/slab.c:3735
 memdup_user+0x22/0xa0 mm/util.c:165
 strndup_user+0x5b/0xf0 mm/util.c:196
 copy_mount_string fs/namespace.c:2809 [inline]
 SYSC_mount fs/namespace.c:3106 [inline]
 SyS_mount+0x39/0x120 fs/namespace.c:3098
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7fd2b0985279
RSP: 002b:00007fd2af2fa168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fd2b0a97f80 RCX: 00007fd2b0985279
RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007fd2af2fa1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fffcc49dc2f R14: 00007fd2af2fa300 R15: 0000000000022000
CPU: 1 PID: 17136 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
 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]
 alloc_vfsmnt+0x23/0x7f0 fs/namespace.c:205
 vfs_kern_mount.part.0+0x27/0x470 fs/namespace.c:1039
 vfs_kern_mount fs/namespace.c:1036 [inline]
 do_new_mount fs/namespace.c:2572 [inline]
 do_mount+0xe65/0x2a30 fs/namespace.c:2905
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
 SYSC_mount fs/namespace.c:3121 [inline]
 SyS_mount+0xa8/0x120 fs/namespace.c:3098
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f4b1f464279
RSP: 002b:00007f4b1ddd9168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f4b1f576f80 RCX: 00007f4b1f464279
RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007f4b1ddd91d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffd9946d7ef R14: 00007f4b1ddd9300 R15: 0000000000022000
CPU: 0 PID: 17157 Comm: syz-executor.0 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]
 cifs_get_volume_info+0x46/0x1f0 fs/cifs/connect.c:3770
 cifs_do_mount+0x95/0xf10 fs/cifs/cifsfs.c:689
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
 mount_fs+0x92/0x2a0 fs/super.c:1237
 vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046
 vfs_kern_mount fs/namespace.c:1036 [inline]
 do_new_mount fs/namespace.c:2572 [inline]
 do_mount+0xe65/0x2a30 fs/namespace.c:2905
 SYSC_mount fs/namespace.c:3121 [inline]
 SyS_mount+0xa8/0x120 fs/namespace.c:3098
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f0b2e5bc279
RSP: 002b:00007f0b2cf31168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f0b2e6cef80 RCX: 00007f0b2e5bc279
RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007f0b2cf311d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffc2764f0bf R14: 00007f0b2cf31300 R15: 0000000000022000
CPU: 1 PID: 17170 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
 getname_flags+0xc8/0x550 fs/namei.c:138
 user_path_at_empty+0x2a/0x50 fs/namei.c:2631
 user_path include/linux/namei.h:62 [inline]
 do_mount+0x118/0x2a30 fs/namespace.c:2845
 SYSC_mount fs/namespace.c:3121 [inline]
 SyS_mount+0xa8/0x120 fs/namespace.c:3098
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7fd2b0985279
RSP: 002b:00007fd2af2fa168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fd2b0a97f80 RCX: 00007fd2b0985279
RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007fd2af2fa1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fffcc49dc2f R14: 00007fd2af2fa300 R15: 0000000000022000
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
FAULT_INJECTION: forcing a failure.
name fail_page_alloc, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 17209 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_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
 user_path_at_empty+0x2a/0x50 fs/namei.c:2631
 user_path include/linux/namei.h:62 [inline]
 do_mount+0x118/0x2a30 fs/namespace.c:2845
 SYSC_mount fs/namespace.c:3121 [inline]
 SyS_mount+0xa8/0x120 fs/namespace.c:3098
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7fd2b0985279
RSP: 002b:00007fd2af2fa168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fd2b0a97f80 RCX: 00007fd2b0985279
RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007fd2af2fa1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fffcc49dc2f R14: 00007fd2af2fa300 R15: 0000000000022000
CPU: 1 PID: 17202 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
 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]
 cifs_get_volume_info+0x46/0x1f0 fs/cifs/connect.c:3770
 cifs_do_mount+0x95/0xf10 fs/cifs/cifsfs.c:689
 mount_fs+0x92/0x2a0 fs/super.c:1237
 vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046
 vfs_kern_mount fs/namespace.c:1036 [inline]
 do_new_mount fs/namespace.c:2572 [inline]
 do_mount+0xe65/0x2a30 fs/namespace.c:2905
 SYSC_mount fs/namespace.c:3121 [inline]
 SyS_mount+0xa8/0x120 fs/namespace.c:3098
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f4b1f464279
RSP: 002b:00007f4b1ddd9168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f4b1f576f80 RCX: 00007f4b1f464279
RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007f4b1ddd91d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffd9946d7ef R14: 00007f4b1ddd9300 R15: 0000000000022000
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 17265 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]
 cifs_get_volume_info+0x46/0x1f0 fs/cifs/connect.c:3770
 cifs_do_mount+0x95/0xf10 fs/cifs/cifsfs.c:689
 mount_fs+0x92/0x2a0 fs/super.c:1237
 vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046
 vfs_kern_mount fs/namespace.c:1036 [inline]
 do_new_mount fs/namespace.c:2572 [inline]
 do_mount+0xe65/0x2a30 fs/namespace.c:2905
 SYSC_mount fs/namespace.c:3121 [inline]
 SyS_mount+0xa8/0x120 fs/namespace.c:3098
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7fd2b0985279
RSP: 002b:00007fd2af2fa168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fd2b0a97f80 RCX: 00007fd2b0985279
RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007fd2af2fa1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fffcc49dc2f R14: 00007fd2af2fa300 R15: 0000000000022000
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 17311 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]
 cifs_get_volume_info+0x46/0x1f0 fs/cifs/connect.c:3770
 cifs_do_mount+0x95/0xf10 fs/cifs/cifsfs.c:689
 mount_fs+0x92/0x2a0 fs/super.c:1237
 vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046
 vfs_kern_mount fs/namespace.c:1036 [inline]
 do_new_mount fs/namespace.c:2572 [inline]
 do_mount+0xe65/0x2a30 fs/namespace.c:2905
 SYSC_mount fs/namespace.c:3121 [inline]
 SyS_mount+0xa8/0x120 fs/namespace.c:3098
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7fd2b0985279
RSP: 002b:00007fd2af2fa168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fd2b0a97f80 RCX: 00007fd2b0985279
RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007fd2af2fa1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fffcc49dc2f R14: 00007fd2af2fa300 R15: 0000000000022000