syzbot


possible deadlock in tty_port_tty_get

Status: upstream: reported on 2022/08/20 20:12
Reported-by: syzbot+adb098a6aa0111111d0b@syzkaller.appspotmail.com
First crash: 645d, last: 466d
Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream possible deadlock in tty_port_tty_get serial C 22661 403d 604d 22/26 fixed on 2023/06/08 14:41
upstream possible deadlock in tty_port_tty_get (2) bpf net 3 47d 66d 26/26 fixed on 2024/05/22 23:36

Sample crash report:
RBP: 00007f00b54291d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffc2805941f R14: 00007f00b5429300 R15: 0000000000022000
CPU: 0 PID: 14129 Comm: syz-executor.4 Not tainted 4.14.305-syzkaller #0
======================================================
WARNING: possible circular locking dependency detected
4.14.305-syzkaller #0 Not tainted
------------------------------------------------------
syz-executor.0/14130 is trying to acquire lock:
 (console_owner){....}, at: [<ffffffff8144195a>] console_trylock_spinning kernel/printk/printk.c:1660 [inline]
 (console_owner){....}, at: [<ffffffff8144195a>] vprintk_emit+0x32a/0x620 kernel/printk/printk.c:1924

but task is already holding lock:
 (&(&port->lock)->rlock){-.-.}, at: [<ffffffff83560b1b>] tty_insert_flip_string_and_push_buffer+0x2b/0x160 drivers/tty/tty_buffer.c:569

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #2 (&(&port->lock)->rlock){-.-.}:
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0x8c/0xc0 kernel/locking/spinlock.c:160
       tty_port_tty_get+0x1d/0x80 drivers/tty/tty_port.c:288
       tty_port_default_wakeup+0x11/0x40 drivers/tty/tty_port.c:46
       serial8250_tx_chars+0x3fe/0xc70 drivers/tty/serial/8250/8250_port.c:1828
       serial8250_handle_irq.part.0+0x2c7/0x390 drivers/tty/serial/8250/8250_port.c:1918
       serial8250_handle_irq drivers/tty/serial/8250/8250_port.c:1891 [inline]
       serial8250_default_handle_irq+0x8a/0x1f0 drivers/tty/serial/8250/8250_port.c:1934
       serial8250_interrupt+0xf3/0x210 drivers/tty/serial/8250/8250_core.c:129
       __handle_irq_event_percpu+0xee/0x7f0 kernel/irq/handle.c:147
       handle_irq_event_percpu kernel/irq/handle.c:187 [inline]
       handle_irq_event+0xed/0x240 kernel/irq/handle.c:204
       handle_edge_irq+0x224/0xc40 kernel/irq/chip.c:770
       generic_handle_irq_desc include/linux/irqdesc.h:159 [inline]
       handle_irq+0x35/0x50 arch/x86/kernel/irq_64.c:87
       do_IRQ+0x93/0x1d0 arch/x86/kernel/irq.c:230
       ret_from_intr+0x0/0x1e
       native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:60
       arch_safe_halt arch/x86/include/asm/paravirt.h:94 [inline]
       default_idle+0x47/0x370 arch/x86/kernel/process.c:558
       cpuidle_idle_call kernel/sched/idle.c:156 [inline]
       do_idle+0x250/0x3c0 kernel/sched/idle.c:246
       cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:351
       start_kernel+0x743/0x763 init/main.c:712
       secondary_startup_64+0xa5/0xb0 arch/x86/kernel/head_64.S:240

-> #1 (&port_lock_key){-.-.}:
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0x8c/0xc0 kernel/locking/spinlock.c:160
       serial8250_console_write+0x8cb/0xb40 drivers/tty/serial/8250/8250_port.c:3281
       call_console_drivers kernel/printk/printk.c:1727 [inline]
       console_unlock+0x99d/0xf20 kernel/printk/printk.c:2409
       vprintk_emit+0x224/0x620 kernel/printk/printk.c:1925
       vprintk_func+0x58/0x160 kernel/printk/printk_safe.c:409
       printk+0x9e/0xbc kernel/printk/printk.c:1998
       register_console+0x6f4/0xad0 kernel/printk/printk.c:2728
       univ8250_console_init+0x2f/0x3a drivers/tty/serial/8250/8250_core.c:691
       console_init+0x46/0x53 kernel/printk/printk.c:2809
       start_kernel+0x521/0x763 init/main.c:638
       secondary_startup_64+0xa5/0xb0 arch/x86/kernel/head_64.S:240

-> #0 (console_owner){....}:
       lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998
       console_trylock_spinning kernel/printk/printk.c:1681 [inline]
       vprintk_emit+0x367/0x620 kernel/printk/printk.c:1924
       vprintk_func+0x58/0x160 kernel/printk/printk_safe.c:409
       printk+0x9e/0xbc kernel/printk/printk.c:1998
       fail_dump lib/fault-inject.c:44 [inline]
       should_fail.cold+0xdf/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+0x6d/0x400 mm/slab.c:3729
       kmalloc include/linux/slab.h:493 [inline]
       tty_buffer_alloc+0xc0/0x270 drivers/tty/tty_buffer.c:169
       __tty_buffer_request_room+0x12c/0x290 drivers/tty/tty_buffer.c:268
       tty_insert_flip_string_fixed_flag+0x8b/0x210 drivers/tty/tty_buffer.c:313
       tty_insert_flip_string include/linux/tty_flip.h:36 [inline]
       tty_insert_flip_string_and_push_buffer+0x3e/0x160 drivers/tty/tty_buffer.c:570
       pty_write+0xc3/0xf0 drivers/tty/pty.c:118
       tty_send_xchar+0x245/0x360 drivers/tty/tty_io.c:1092
       n_tty_ioctl_helper+0x145/0x350 drivers/tty/tty_ioctl.c:926
       n_tty_ioctl+0x47/0x2e0 drivers/tty/n_tty.c:2466
       tty_ioctl+0x5af/0x1430 drivers/tty/tty_io.c:2670
       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+0x5e/0xd3

other info that might help us debug this:

Chain exists of:
  console_owner --> &port_lock_key --> &(&port->lock)->rlock

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&(&port->lock)->rlock);
                               lock(&port_lock_key);
                               lock(&(&port->lock)->rlock);
  lock(console_owner);

 *** DEADLOCK ***

4 locks held by syz-executor.0/14130:
 #0:  (&tty->ldisc_sem){++++}, at: [<ffffffff8355cf92>] tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:284
 #1:  (&tty->atomic_write_lock){+.+.}, at: [<ffffffff8354be65>] tty_write_lock drivers/tty/tty_io.c:885 [inline]
 #1:  (&tty->atomic_write_lock){+.+.}, at: [<ffffffff8354be65>] tty_send_xchar+0x1b5/0x360 drivers/tty/tty_io.c:1086
 #2:  (&tty->termios_rwsem){++++}, at: [<ffffffff8354be98>] tty_send_xchar+0x1e8/0x360 drivers/tty/tty_io.c:1089
 #3:  (&(&port->lock)->rlock){-.-.}, at: [<ffffffff83560b1b>] tty_insert_flip_string_and_push_buffer+0x2b/0x160 drivers/tty/tty_buffer.c:569

stack backtrace:
CPU: 1 PID: 14130 Comm: syz-executor.0 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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
 console_trylock_spinning kernel/printk/printk.c:1681 [inline]
 vprintk_emit+0x367/0x620 kernel/printk/printk.c:1924
 vprintk_func+0x58/0x160 kernel/printk/printk_safe.c:409
 printk+0x9e/0xbc kernel/printk/printk.c:1998
 fail_dump lib/fault-inject.c:44 [inline]
 should_fail.cold+0xdf/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+0x6d/0x400 mm/slab.c:3729
 kmalloc include/linux/slab.h:493 [inline]
 tty_buffer_alloc+0xc0/0x270 drivers/tty/tty_buffer.c:169
 __tty_buffer_request_room+0x12c/0x290 drivers/tty/tty_buffer.c:268
 tty_insert_flip_string_fixed_flag+0x8b/0x210 drivers/tty/tty_buffer.c:313
 tty_insert_flip_string include/linux/tty_flip.h:36 [inline]
 tty_insert_flip_string_and_push_buffer+0x3e/0x160 drivers/tty/tty_buffer.c:570
 pty_write+0xc3/0xf0 drivers/tty/pty.c:118
 tty_send_xchar+0x245/0x360 drivers/tty/tty_io.c:1092
 n_tty_ioctl_helper+0x145/0x350 drivers/tty/tty_ioctl.c:926
 n_tty_ioctl+0x47/0x2e0 drivers/tty/n_tty.c:2466
 tty_ioctl+0x5af/0x1430 drivers/tty/tty_io.c:2670
 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+0x5e/0xd3
RIP: 0033:0x7f00b6eb70f9
RSP: 002b:00007f00b5429168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f00b6fd6f80 RCX: 00007f00b6eb70f9
RDX: 0000000000000002 RSI: 000000000000540a RDI: 0000000000000003
RBP: 00007f00b54291d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffc2805941f R14: 00007f00b5429300 R15: 0000000000022000
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 01/21/2023
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
 skb_clone+0x126/0x9a0 net/core/skbuff.c:1291
 __netlink_deliver_tap_skb net/netlink/af_netlink.c:268 [inline]
 __netlink_deliver_tap net/netlink/af_netlink.c:293 [inline]
 netlink_deliver_tap+0x67e/0x860 net/netlink/af_netlink.c:304
 netlink_deliver_tap_kernel net/netlink/af_netlink.c:313 [inline]
 netlink_unicast_kernel net/netlink/af_netlink.c:1301 [inline]
 netlink_unicast+0x485/0x610 net/netlink/af_netlink.c:1328
 netlink_sendmsg+0x651/0xbc0 net/netlink/af_netlink.c:1900
 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+0x5e/0xd3
RIP: 0033:0x7f1cbb1e80f9
RSP: 002b:00007f1cb975a168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f1cbb307f80 RCX: 00007f1cbb1e80f9
RDX: 0000000000000000 RSI: 00000000200002c0 RDI: 0000000000000003
RBP: 00007f1cb975a1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffed1c48fdf R14: 00007f1cb975a300 R15: 0000000000022000
CPU: 1 PID: 14135 Comm: syz-executor.1 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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
 anon_vma_chain_alloc mm/rmap.c:130 [inline]
 __anon_vma_prepare+0x5d/0x510 mm/rmap.c:184
 anon_vma_prepare include/linux/rmap.h:157 [inline]
 do_huge_pmd_anonymous_page+0xd38/0x1700 mm/huge_memory.c:682
 create_huge_pmd mm/memory.c:4007 [inline]
 __handle_mm_fault+0x2ac4/0x4620 mm/memory.c:4210
 handle_mm_fault+0x455/0x9c0 mm/memory.c:4276
 __do_page_fault+0x549/0xad0 arch/x86/mm/fault.c:1442
 page_fault+0x25/0x50 arch/x86/entry/entry_64.S:1126
RIP: 0010:copy_user_generic_unrolled+0x89/0xc0 arch/x86/lib/copy_user_64.S:67
RSP: 0018:ffff888098e1fdf0 EFLAGS: 00050202
RAX: ffffed10131c3fcb RBX: 0000000000000010 RCX: 0000000000000002
RDX: 0000000000000000 RSI: ffff888098e1fe48 RDI: 0000000020000340
RBP: ffff888098e1fe48 R08: 0000000000000000 R09: ffffed10131c3fca
R10: ffff888098e1fe57 R11: ffff8880b18d4640 R12: 0000000020000340
R13: 00007ffffffff000 R14: 0000000020000350 R15: 0000000000000000
 copy_user_generic arch/x86/include/asm/uaccess_64.h:37 [inline]
 raw_copy_to_user arch/x86/include/asm/uaccess_64.h:112 [inline]
 _copy_to_user+0xaa/0xd0 lib/usercopy.c:28
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
 copy_to_user include/linux/uaccess.h:155 [inline]
 put_timespec64+0x9e/0xf0 kernel/time/time.c:920
 SYSC_clock_gettime kernel/time/posix-timers.c:1075 [inline]
 SyS_clock_gettime+0x128/0x180 kernel/time/posix-timers.c:1063
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fd8f8b7a0f9
RSP: 002b:00007fd8f70ec168 EFLAGS: 00000246 ORIG_RAX: 00000000000000e4
RAX: ffffffffffffffda RBX: 00007fd8f8c99f80 RCX: 00007fd8f8b7a0f9
RDX: 0000000000000000 RSI: 0000000020000340 RDI: 0000000000000003
RBP: 00007fd8f70ec1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffdc501b0df R14: 00007fd8f70ec300 R15: 0000000000022000
CPU: 0 PID: 14143 Comm: syz-executor.3 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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]
 sock_alloc_inode+0x5f/0x250 net/socket.c:254
 alloc_inode+0x5d/0x170 fs/inode.c:209
 new_inode_pseudo+0x14/0xe0 fs/inode.c:898
 sock_alloc+0x3c/0x270 net/socket.c:569
 __sock_create+0x8a/0x620 net/socket.c:1239
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1387 [inline]
 SyS_socketpair+0xdf/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7f5257a6d0f9
RSP: 002b:00007f5255fdf168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f5257b8cf80 RCX: 00007f5257a6d0f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007f5255fdf1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffd96ae53df R14: 00007f5255fdf300 R15: 0000000000022000
CPU: 0 PID: 14142 Comm: syz-executor.2 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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
socket: no more sockets
 sk_prot_alloc+0x5f/0x290 net/core/sock.c:1478
 sk_alloc+0x36/0xcd0 net/core/sock.c:1538
 inet6_create net/ipv6/af_inet6.c:183 [inline]
 inet6_create+0x2df/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1387 [inline]
 SyS_socketpair+0xdf/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fc9f89890f9
RSP: 002b:00007fc9f6efb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007fc9f8aa8f80 RCX: 00007fc9f89890f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007fc9f6efb1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffeca7ede1f R14: 00007fc9f6efb300 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: 14182 Comm: syz-executor.3 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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
 sk_prot_alloc+0x5f/0x290 net/core/sock.c:1478
 sk_alloc+0x36/0xcd0 net/core/sock.c:1538
 inet6_create net/ipv6/af_inet6.c:183 [inline]
 inet6_create+0x2df/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1387 [inline]
 SyS_socketpair+0xdf/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7f5257a6d0f9
RSP: 002b:00007f5255fdf168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f5257b8cf80 RCX: 00007f5257a6d0f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007f5255fdf1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffd96ae53df R14: 00007f5255fdf300 R15: 0000000000022000
CPU: 1 PID: 14187 Comm: syz-executor.2 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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
 kmemdup+0x23/0x50 mm/util.c:119
 kmemdup include/linux/string.h:449 [inline]
 dccp_feat_clone_sp_val.part.0+0x4a/0xd0 net/dccp/feat.c:374
 dccp_feat_clone_sp_val net/dccp/feat.c:373 [inline]
 __feat_register_sp+0x19d/0x490 net/dccp/feat.c:738
 dccp_feat_init+0x238/0x6b0 net/dccp/feat.c:1464
 dccp_init_sock+0x2f1/0x3c0 net/dccp/proto.c:205
 dccp_v6_init_sock+0x1a/0x80 net/dccp/ipv6.c:1012
 inet6_create net/ipv6/af_inet6.c:255 [inline]
 inet6_create+0x8f1/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1387 [inline]
 SyS_socketpair+0xdf/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fc9f89890f9
RSP: 002b:00007fc9f6efb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007fc9f8aa8f80 RCX: 00007fc9f89890f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007fc9f6efb1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffeca7ede1f R14: 00007fc9f6efb300 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: 14208 Comm: syz-executor.2 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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]
 dccp_feat_entry_new+0x173/0x350 net/dccp/feat.c:467
 dccp_feat_push_change net/dccp/feat.c:487 [inline]
 __feat_register_sp+0x1c9/0x490 net/dccp/feat.c:741
 dccp_feat_init+0x238/0x6b0 net/dccp/feat.c:1464
 dccp_init_sock+0x2f1/0x3c0 net/dccp/proto.c:205
 dccp_v6_init_sock+0x1a/0x80 net/dccp/ipv6.c:1012
 inet6_create net/ipv6/af_inet6.c:255 [inline]
 inet6_create+0x8f1/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1387 [inline]
 SyS_socketpair+0xdf/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fc9f89890f9
RSP: 002b:00007fc9f6efb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007fc9f8aa8f80 RCX: 00007fc9f89890f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007fc9f6efb1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
netlink: 44 bytes leftover after parsing attributes in process `syz-executor.4'.
R13: 00007ffeca7ede1f R14: 00007fc9f6efb300 R15: 0000000000022000
CPU: 0 PID: 14213 Comm: syz-executor.3 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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
 kmemdup+0x23/0x50 mm/util.c:119
 kmemdup include/linux/string.h:449 [inline]
 dccp_feat_clone_sp_val.part.0+0x4a/0xd0 net/dccp/feat.c:374
 dccp_feat_clone_sp_val net/dccp/feat.c:373 [inline]
 __feat_register_sp+0x19d/0x490 net/dccp/feat.c:738
 dccp_feat_init+0x238/0x6b0 net/dccp/feat.c:1464
 dccp_init_sock+0x2f1/0x3c0 net/dccp/proto.c:205
 dccp_v6_init_sock+0x1a/0x80 net/dccp/ipv6.c:1012
 inet6_create net/ipv6/af_inet6.c:255 [inline]
 inet6_create+0x8f1/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1387 [inline]
 SyS_socketpair+0xdf/0x480 net/socket.c:1366
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7f5257a6d0f9
RSP: 002b:00007f5255fdf168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f5257b8cf80 RCX: 00007f5257a6d0f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007f5255fdf1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffd96ae53df R14: 00007f5255fdf300 R15: 0000000000022000
CPU: 1 PID: 14230 Comm: syz-executor.2 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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
 kmemdup+0x23/0x50 mm/util.c:119
 kmemdup include/linux/string.h:449 [inline]
 dccp_feat_clone_sp_val.part.0+0x4a/0xd0 net/dccp/feat.c:374
 dccp_feat_clone_sp_val net/dccp/feat.c:373 [inline]
 __feat_register_sp+0x19d/0x490 net/dccp/feat.c:738
 dccp_feat_init+0x266/0x6b0 net/dccp/feat.c:1469
 dccp_init_sock+0x2f1/0x3c0 net/dccp/proto.c:205
 dccp_v6_init_sock+0x1a/0x80 net/dccp/ipv6.c:1012
 inet6_create net/ipv6/af_inet6.c:255 [inline]
 inet6_create+0x8f1/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1387 [inline]
 SyS_socketpair+0xdf/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fc9f89890f9
RSP: 002b:00007fc9f6efb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007fc9f8aa8f80 RCX: 00007fc9f89890f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007fc9f6efb1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffeca7ede1f R14: 00007fc9f6efb300 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: 14256 Comm: syz-executor.2 Not tainted 4.14.305-syzkaller #0
netlink: 44 bytes leftover after parsing attributes in process `syz-executor.4'.
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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]
 dccp_feat_entry_new+0x173/0x350 net/dccp/feat.c:467
netlink: 44 bytes leftover after parsing attributes in process `syz-executor.4'.
 dccp_feat_push_change net/dccp/feat.c:487 [inline]
 __feat_register_sp+0x1c9/0x490 net/dccp/feat.c:741
 dccp_feat_init+0x266/0x6b0 net/dccp/feat.c:1469
netlink: 20 bytes leftover after parsing attributes in process `syz-executor.4'.
netlink: 20 bytes leftover after parsing attributes in process `syz-executor.4'.
 dccp_init_sock+0x2f1/0x3c0 net/dccp/proto.c:205
 dccp_v6_init_sock+0x1a/0x80 net/dccp/ipv6.c:1012
 inet6_create net/ipv6/af_inet6.c:255 [inline]
 inet6_create+0x8f1/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1387 [inline]
 SyS_socketpair+0xdf/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fc9f89890f9
RSP: 002b:00007fc9f6efb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007fc9f8aa8f80 RCX: 00007fc9f89890f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007fc9f6efb1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffeca7ede1f R14: 00007fc9f6efb300 R15: 0000000000022000
CPU: 0 PID: 14260 Comm: syz-executor.3 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
netlink: 20 bytes leftover after parsing attributes in process `syz-executor.4'.
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
netlink: 20 bytes leftover after parsing attributes in process `syz-executor.4'.
 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]
 dccp_feat_entry_new+0x173/0x350 net/dccp/feat.c:467
 dccp_feat_push_change net/dccp/feat.c:487 [inline]
 __feat_register_sp+0x1c9/0x490 net/dccp/feat.c:741
 dccp_feat_init+0x238/0x6b0 net/dccp/feat.c:1464
 dccp_init_sock+0x2f1/0x3c0 net/dccp/proto.c:205
 dccp_v6_init_sock+0x1a/0x80 net/dccp/ipv6.c:1012
 inet6_create net/ipv6/af_inet6.c:255 [inline]
 inet6_create+0x8f1/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1387 [inline]
 SyS_socketpair+0xdf/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7f5257a6d0f9
RSP: 002b:00007f5255fdf168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f5257b8cf80 RCX: 00007f5257a6d0f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007f5255fdf1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffd96ae53df R14: 00007f5255fdf300 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: 14294 Comm: syz-executor.3 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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
 kmemdup+0x23/0x50 mm/util.c:119
 kmemdup include/linux/string.h:449 [inline]
 dccp_feat_clone_sp_val.part.0+0x4a/0xd0 net/dccp/feat.c:374
 dccp_feat_clone_sp_val net/dccp/feat.c:373 [inline]
 __feat_register_sp+0x19d/0x490 net/dccp/feat.c:738
 dccp_feat_init+0x266/0x6b0 net/dccp/feat.c:1469
 dccp_init_sock+0x2f1/0x3c0 net/dccp/proto.c:205
 dccp_v6_init_sock+0x1a/0x80 net/dccp/ipv6.c:1012
 inet6_create net/ipv6/af_inet6.c:255 [inline]
 inet6_create+0x8f1/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1387 [inline]
 SyS_socketpair+0xdf/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7f5257a6d0f9
RSP: 002b:00007f5255fdf168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f5257b8cf80 RCX: 00007f5257a6d0f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007f5255fdf1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffd96ae53df R14: 00007f5255fdf300 R15: 0000000000022000
CPU: 0 PID: 14289 Comm: syz-executor.2 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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]
 ccid_get_builtin_ccids+0x6b/0x1c0 net/dccp/ccid.c:54
 dccp_feat_init+0x2be/0x6b0 net/dccp/feat.c:1479
 dccp_init_sock+0x2f1/0x3c0 net/dccp/proto.c:205
 dccp_v6_init_sock+0x1a/0x80 net/dccp/ipv6.c:1012
 inet6_create net/ipv6/af_inet6.c:255 [inline]
 inet6_create+0x8f1/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1387 [inline]
 SyS_socketpair+0xdf/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fc9f89890f9
RSP: 002b:00007fc9f6efb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007fc9f8aa8f80 RCX: 00007fc9f89890f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007fc9f6efb1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffeca7ede1f R14: 00007fc9f6efb300 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: 14318 Comm: syz-executor.2 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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]
 ccid_get_builtin_ccids+0x6b/0x1c0 net/dccp/ccid.c:54
 dccp_feat_init+0x2e4/0x6b0 net/dccp/feat.c:1481
 dccp_init_sock+0x2f1/0x3c0 net/dccp/proto.c:205
 dccp_v6_init_sock+0x1a/0x80 net/dccp/ipv6.c:1012
 inet6_create net/ipv6/af_inet6.c:255 [inline]
 inet6_create+0x8f1/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1387 [inline]
 SyS_socketpair+0xdf/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fc9f89890f9
RSP: 002b:00007fc9f6efb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007fc9f8aa8f80 RCX: 00007fc9f89890f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007fc9f6efb1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffeca7ede1f R14: 00007fc9f6efb300 R15: 0000000000022000
CPU: 1 PID: 14322 Comm: syz-executor.3 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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]
 dccp_feat_entry_new+0x173/0x350 net/dccp/feat.c:467
 dccp_feat_push_change net/dccp/feat.c:487 [inline]
 __feat_register_sp+0x1c9/0x490 net/dccp/feat.c:741
 dccp_feat_init+0x266/0x6b0 net/dccp/feat.c:1469
 dccp_init_sock+0x2f1/0x3c0 net/dccp/proto.c:205
 dccp_v6_init_sock+0x1a/0x80 net/dccp/ipv6.c:1012
 inet6_create net/ipv6/af_inet6.c:255 [inline]
 inet6_create+0x8f1/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1387 [inline]
 SyS_socketpair+0xdf/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7f5257a6d0f9
RSP: 002b:00007f5255fdf168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f5257b8cf80 RCX: 00007f5257a6d0f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007f5255fdf1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffd96ae53df R14: 00007f5255fdf300 R15: 0000000000022000
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 14358 Comm: syz-executor.2 Not tainted 4.14.305-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 01/21/2023
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
 kmemdup+0x23/0x50 mm/util.c:119
 kmemdup include/linux/string.h:449 [inline]
 dccp_feat_clone_sp_val.part.0+0x4a/0xd0 net/dccp/feat.c:374
 dccp_feat_clone_sp_val net/dccp/feat.c:373 [inline]
 __feat_register_sp+0x19d/0x490 net/dccp/feat.c:738
 dccp_feat_init+0x5ce/0x6b0 net/dccp/feat.c:1490
 dccp_init_sock+0x2f1/0x3c0 net/dccp/proto.c:205
 dccp_v6_init_sock+0x1a/0x80 net/dccp/ipv6.c:1012
 inet6_create net/ipv6/af_inet6.c:255 [inline]
 inet6_create+0x8f1/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1387 [inline]
 SyS_socketpair+0xdf/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fc9f89890f9
RSP: 002b:00007fc9f6efb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007fc9f8aa8f80 RCX: 00007fc9f89890f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007fc9f6efb1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffeca7ede1f R14: 00007fc9f6efb300 R15: 0000000000022000
CPU: 0 PID: 14357 Comm: syz-executor.3 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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]
 ccid_get_builtin_ccids+0x6b/0x1c0 net/dccp/ccid.c:54
 dccp_feat_init+0x2be/0x6b0 net/dccp/feat.c:1479
 dccp_init_sock+0x2f1/0x3c0 net/dccp/proto.c:205
 dccp_v6_init_sock+0x1a/0x80 net/dccp/ipv6.c:1012
 inet6_create net/ipv6/af_inet6.c:255 [inline]
 inet6_create+0x8f1/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1387 [inline]
 SyS_socketpair+0xdf/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7f5257a6d0f9
RSP: 002b:00007f5255fdf168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f5257b8cf80 RCX: 00007f5257a6d0f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007f5255fdf1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffd96ae53df R14: 00007f5255fdf300 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: 14390 Comm: syz-executor.2 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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]
 dccp_feat_entry_new+0x173/0x350 net/dccp/feat.c:467
 dccp_feat_push_change net/dccp/feat.c:487 [inline]
 __feat_register_sp+0x1c9/0x490 net/dccp/feat.c:741
 dccp_feat_init+0x5ce/0x6b0 net/dccp/feat.c:1490
 dccp_init_sock+0x2f1/0x3c0 net/dccp/proto.c:205
 dccp_v6_init_sock+0x1a/0x80 net/dccp/ipv6.c:1012
 inet6_create net/ipv6/af_inet6.c:255 [inline]
 inet6_create+0x8f1/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1387 [inline]
 SyS_socketpair+0xdf/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fc9f89890f9
RSP: 002b:00007fc9f6efb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007fc9f8aa8f80 RCX: 00007fc9f89890f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007fc9f6efb1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffeca7ede1f R14: 00007fc9f6efb300 R15: 0000000000022000
CPU: 1 PID: 14394 Comm: syz-executor.3 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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]
 ccid_get_builtin_ccids+0x6b/0x1c0 net/dccp/ccid.c:54
 dccp_feat_init+0x2e4/0x6b0 net/dccp/feat.c:1481
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
 dccp_init_sock+0x2f1/0x3c0 net/dccp/proto.c:205
 dccp_v6_init_sock+0x1a/0x80 net/dccp/ipv6.c:1012
 inet6_create net/ipv6/af_inet6.c:255 [inline]
 inet6_create+0x8f1/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1387 [inline]
 SyS_socketpair+0xdf/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7f5257a6d0f9
RSP: 002b:00007f5255fdf168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f5257b8cf80 RCX: 00007f5257a6d0f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007f5255fdf1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffd96ae53df R14: 00007f5255fdf300 R15: 0000000000022000
CPU: 0 PID: 14407 Comm: syz-executor.2 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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
 kmemdup+0x23/0x50 mm/util.c:119
 kmemdup include/linux/string.h:449 [inline]
 dccp_feat_clone_sp_val.part.0+0x4a/0xd0 net/dccp/feat.c:374
 dccp_feat_clone_sp_val net/dccp/feat.c:373 [inline]
 __feat_register_sp+0x19d/0x490 net/dccp/feat.c:738
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
 dccp_feat_init+0x600/0x6b0 net/dccp/feat.c:1494
 dccp_init_sock+0x2f1/0x3c0 net/dccp/proto.c:205
 dccp_v6_init_sock+0x1a/0x80 net/dccp/ipv6.c:1012
 inet6_create net/ipv6/af_inet6.c:255 [inline]
 inet6_create+0x8f1/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1387 [inline]
 SyS_socketpair+0xdf/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fc9f89890f9
RSP: 002b:00007fc9f6efb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007fc9f8aa8f80 RCX: 00007fc9f89890f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007fc9f6efb1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffeca7ede1f R14: 00007fc9f6efb300 R15: 0000000000022000
CPU: 1 PID: 14415 Comm: syz-executor.3 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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
 kmemdup+0x23/0x50 mm/util.c:119
 kmemdup include/linux/string.h:449 [inline]
 dccp_feat_clone_sp_val.part.0+0x4a/0xd0 net/dccp/feat.c:374
 dccp_feat_clone_sp_val net/dccp/feat.c:373 [inline]
 __feat_register_sp+0x19d/0x490 net/dccp/feat.c:738
 dccp_feat_init+0x5ce/0x6b0 net/dccp/feat.c:1490
 dccp_init_sock+0x2f1/0x3c0 net/dccp/proto.c:205
 dccp_v6_init_sock+0x1a/0x80 net/dccp/ipv6.c:1012
 inet6_create net/ipv6/af_inet6.c:255 [inline]
 inet6_create+0x8f1/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1387 [inline]
 SyS_socketpair+0xdf/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7f5257a6d0f9
RSP: 002b:00007f5255fdf168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f5257b8cf80 RCX: 00007f5257a6d0f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007f5255fdf1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffd96ae53df R14: 00007f5255fdf300 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: 14430 Comm: syz-executor.2 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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]
 dccp_feat_entry_new+0x173/0x350 net/dccp/feat.c:467
 dccp_feat_push_change net/dccp/feat.c:487 [inline]
 __feat_register_sp+0x1c9/0x490 net/dccp/feat.c:741
 dccp_feat_init+0x600/0x6b0 net/dccp/feat.c:1494
 dccp_init_sock+0x2f1/0x3c0 net/dccp/proto.c:205
 dccp_v6_init_sock+0x1a/0x80 net/dccp/ipv6.c:1012
 inet6_create net/ipv6/af_inet6.c:255 [inline]
 inet6_create+0x8f1/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1387 [inline]
 SyS_socketpair+0xdf/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fc9f89890f9
RSP: 002b:00007fc9f6efb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007fc9f8aa8f80 RCX: 00007fc9f89890f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007fc9f6efb1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffeca7ede1f R14: 00007fc9f6efb300 R15: 0000000000022000
CPU: 1 PID: 14443 Comm: syz-executor.3 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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]
 dccp_feat_entry_new+0x173/0x350 net/dccp/feat.c:467
 dccp_feat_push_change net/dccp/feat.c:487 [inline]
 __feat_register_sp+0x1c9/0x490 net/dccp/feat.c:741
 dccp_feat_init+0x5ce/0x6b0 net/dccp/feat.c:1490
 dccp_init_sock+0x2f1/0x3c0 net/dccp/proto.c:205
 dccp_v6_init_sock+0x1a/0x80 net/dccp/ipv6.c:1012
 inet6_create net/ipv6/af_inet6.c:255 [inline]
 inet6_create+0x8f1/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1387 [inline]
 SyS_socketpair+0xdf/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7f5257a6d0f9
RSP: 002b:00007f5255fdf168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f5257b8cf80 RCX: 00007f5257a6d0f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007f5255fdf1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffd96ae53df R14: 00007f5255fdf300 R15: 0000000000022000
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 14467 Comm: syz-executor.2 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
 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
 sock_alloc_inode+0x19/0x250 net/socket.c:251
 alloc_inode+0x5d/0x170 fs/inode.c:209
 new_inode_pseudo+0x14/0xe0 fs/inode.c:898
 sock_alloc+0x3c/0x270 net/socket.c:569
 __sock_create+0x8a/0x620 net/socket.c:1239
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1391 [inline]
 SyS_socketpair+0x159/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fc9f89890f9
RSP: 002b:00007fc9f6efb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007fc9f8aa8f80 RCX: 00007fc9f89890f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007fc9f6efb1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffeca7ede1f R14: 00007fc9f6efb300 R15: 0000000000022000
CPU: 0 PID: 14472 Comm: syz-executor.3 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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
socket: no more sockets
 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
 kmemdup+0x23/0x50 mm/util.c:119
 kmemdup include/linux/string.h:449 [inline]
 dccp_feat_clone_sp_val.part.0+0x4a/0xd0 net/dccp/feat.c:374
 dccp_feat_clone_sp_val net/dccp/feat.c:373 [inline]
 __feat_register_sp+0x19d/0x490 net/dccp/feat.c:738
 dccp_feat_init+0x600/0x6b0 net/dccp/feat.c:1494
 dccp_init_sock+0x2f1/0x3c0 net/dccp/proto.c:205
 dccp_v6_init_sock+0x1a/0x80 net/dccp/ipv6.c:1012
 inet6_create net/ipv6/af_inet6.c:255 [inline]
 inet6_create+0x8f1/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1387 [inline]
 SyS_socketpair+0xdf/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7f5257a6d0f9
RSP: 002b:00007f5255fdf168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f5257b8cf80 RCX: 00007f5257a6d0f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007f5255fdf1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffd96ae53df R14: 00007f5255fdf300 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: 14497 Comm: syz-executor.3 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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]
 dccp_feat_entry_new+0x173/0x350 net/dccp/feat.c:467
 dccp_feat_push_change net/dccp/feat.c:487 [inline]
 __feat_register_sp+0x1c9/0x490 net/dccp/feat.c:741
 dccp_feat_init+0x600/0x6b0 net/dccp/feat.c:1494
 dccp_init_sock+0x2f1/0x3c0 net/dccp/proto.c:205
 dccp_v6_init_sock+0x1a/0x80 net/dccp/ipv6.c:1012
 inet6_create net/ipv6/af_inet6.c:255 [inline]
 inet6_create+0x8f1/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1387 [inline]
 SyS_socketpair+0xdf/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7f5257a6d0f9
RSP: 002b:00007f5255fdf168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f5257b8cf80 RCX: 00007f5257a6d0f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007f5255fdf1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffd96ae53df R14: 00007f5255fdf300 R15: 0000000000022000
CPU: 1 PID: 14501 Comm: syz-executor.2 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
 kmalloc include/linux/slab.h:488 [inline]
 sock_alloc_inode+0x5f/0x250 net/socket.c:254
 alloc_inode+0x5d/0x170 fs/inode.c:209
 new_inode_pseudo+0x14/0xe0 fs/inode.c:898
 sock_alloc+0x3c/0x270 net/socket.c:569
 __sock_create+0x8a/0x620 net/socket.c:1239
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1391 [inline]
 SyS_socketpair+0x159/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fc9f89890f9
RSP: 002b:00007fc9f6efb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007fc9f8aa8f80 RCX: 00007fc9f89890f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007fc9f6efb1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffeca7ede1f R14: 00007fc9f6efb300 R15: 0000000000022000
CPU: 0 PID: 14512 Comm: syz-executor.3 Not tainted 4.14.305-syzkaller #0
socket: no more sockets
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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
 sock_alloc_inode+0x19/0x250 net/socket.c:251
 alloc_inode+0x5d/0x170 fs/inode.c:209
 new_inode_pseudo+0x14/0xe0 fs/inode.c:898
 sock_alloc+0x3c/0x270 net/socket.c:569
 __sock_create+0x8a/0x620 net/socket.c:1239
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1391 [inline]
 SyS_socketpair+0x159/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7f5257a6d0f9
RSP: 002b:00007f5255fdf168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f5257b8cf80 RCX: 00007f5257a6d0f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007f5255fdf1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffd96ae53df R14: 00007f5255fdf300 R15: 0000000000022000
socket: no more sockets
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: 14528 Comm: syz-executor.2 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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
 sk_prot_alloc+0x5f/0x290 net/core/sock.c:1478
 sk_alloc+0x36/0xcd0 net/core/sock.c:1538
 inet6_create net/ipv6/af_inet6.c:183 [inline]
 inet6_create+0x2df/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1391 [inline]
 SyS_socketpair+0x159/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fc9f89890f9
RSP: 002b:00007fc9f6efb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007fc9f8aa8f80 RCX: 00007fc9f89890f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007fc9f6efb1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffeca7ede1f R14: 00007fc9f6efb300 R15: 0000000000022000
CPU: 1 PID: 14529 Comm: syz-executor.3 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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]
 sock_alloc_inode+0x5f/0x250 net/socket.c:254
 alloc_inode+0x5d/0x170 fs/inode.c:209
 new_inode_pseudo+0x14/0xe0 fs/inode.c:898
 sock_alloc+0x3c/0x270 net/socket.c:569
 __sock_create+0x8a/0x620 net/socket.c:1239
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1391 [inline]
 SyS_socketpair+0x159/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7f5257a6d0f9
RSP: 002b:00007f5255fdf168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f5257b8cf80 RCX: 00007f5257a6d0f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007f5255fdf1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffd96ae53df R14: 00007f5255fdf300 R15: 0000000000022000
socket: no more sockets
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: 14575 Comm: syz-executor.3 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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
 sk_prot_alloc+0x5f/0x290 net/core/sock.c:1478
 sk_alloc+0x36/0xcd0 net/core/sock.c:1538
 inet6_create net/ipv6/af_inet6.c:183 [inline]
 inet6_create+0x2df/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1391 [inline]
 SyS_socketpair+0x159/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7f5257a6d0f9
RSP: 002b:00007f5255fdf168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f5257b8cf80 RCX: 00007f5257a6d0f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007f5255fdf1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffd96ae53df R14: 00007f5255fdf300 R15: 0000000000022000
CPU: 1 PID: 14572 Comm: syz-executor.2 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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
 kmemdup+0x23/0x50 mm/util.c:119
 kmemdup include/linux/string.h:449 [inline]
 dccp_feat_clone_sp_val.part.0+0x4a/0xd0 net/dccp/feat.c:374
 dccp_feat_clone_sp_val net/dccp/feat.c:373 [inline]
 __feat_register_sp+0x19d/0x490 net/dccp/feat.c:738
 dccp_feat_init+0x238/0x6b0 net/dccp/feat.c:1464
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
 dccp_init_sock+0x2f1/0x3c0 net/dccp/proto.c:205
 dccp_v6_init_sock+0x1a/0x80 net/dccp/ipv6.c:1012
 inet6_create net/ipv6/af_inet6.c:255 [inline]
 inet6_create+0x8f1/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1391 [inline]
 SyS_socketpair+0x159/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fc9f89890f9
RSP: 002b:00007fc9f6efb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007fc9f8aa8f80 RCX: 00007fc9f89890f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007fc9f6efb1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffeca7ede1f R14: 00007fc9f6efb300 R15: 0000000000022000
CPU: 0 PID: 14594 Comm: syz-executor.3 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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
 kmemdup+0x23/0x50 mm/util.c:119
 kmemdup include/linux/string.h:449 [inline]
 dccp_feat_clone_sp_val.part.0+0x4a/0xd0 net/dccp/feat.c:374
 dccp_feat_clone_sp_val net/dccp/feat.c:373 [inline]
 __feat_register_sp+0x19d/0x490 net/dccp/feat.c:738
 dccp_feat_init+0x238/0x6b0 net/dccp/feat.c:1464
 dccp_init_sock+0x2f1/0x3c0 net/dccp/proto.c:205
 dccp_v6_init_sock+0x1a/0x80 net/dccp/ipv6.c:1012
 inet6_create net/ipv6/af_inet6.c:255 [inline]
 inet6_create+0x8f1/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1391 [inline]
 SyS_socketpair+0x159/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7f5257a6d0f9
RSP: 002b:00007f5255fdf168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f5257b8cf80 RCX: 00007f5257a6d0f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007f5255fdf1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffd96ae53df R14: 00007f5255fdf300 R15: 0000000000022000
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 14618 Comm: syz-executor.2 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
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]
 dccp_feat_entry_new+0x173/0x350 net/dccp/feat.c:467
 dccp_feat_push_change net/dccp/feat.c:487 [inline]
 __feat_register_sp+0x1c9/0x490 net/dccp/feat.c:741
 dccp_feat_init+0x238/0x6b0 net/dccp/feat.c:1464
 dccp_init_sock+0x2f1/0x3c0 net/dccp/proto.c:205
 dccp_v6_init_sock+0x1a/0x80 net/dccp/ipv6.c:1012
 inet6_create net/ipv6/af_inet6.c:255 [inline]
 inet6_create+0x8f1/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1391 [inline]
 SyS_socketpair+0x159/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fc9f89890f9
RSP: 002b:00007fc9f6efb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007fc9f8aa8f80 RCX: 00007fc9f89890f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007fc9f6efb1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffeca7ede1f R14: 00007fc9f6efb300 R15: 0000000000022000
CPU: 0 PID: 14632 Comm: syz-executor.3 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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
 kmemdup+0x23/0x50 mm/util.c:119
 kmemdup include/linux/string.h:449 [inline]
 dccp_feat_clone_sp_val.part.0+0x4a/0xd0 net/dccp/feat.c:374
 dccp_feat_clone_sp_val net/dccp/feat.c:373 [inline]
 __feat_register_sp+0x19d/0x490 net/dccp/feat.c:738
 dccp_feat_init+0x238/0x6b0 net/dccp/feat.c:1464
 dccp_init_sock+0x2f1/0x3c0 net/dccp/proto.c:205
 dccp_v6_init_sock+0x1a/0x80 net/dccp/ipv6.c:1012
 inet6_create net/ipv6/af_inet6.c:255 [inline]
 inet6_create+0x8f1/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1391 [inline]
 SyS_socketpair+0x159/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7f5257a6d0f9
RSP: 002b:00007f5255fdf168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f5257b8cf80 RCX: 00007f5257a6d0f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007f5255fdf1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffd96ae53df R14: 00007f5255fdf300 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: 14666 Comm: syz-executor.3 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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
 kmemdup+0x23/0x50 mm/util.c:119
 kmemdup include/linux/string.h:449 [inline]
 dccp_feat_clone_sp_val.part.0+0x4a/0xd0 net/dccp/feat.c:374
 dccp_feat_clone_sp_val net/dccp/feat.c:373 [inline]
 __feat_register_sp+0x19d/0x490 net/dccp/feat.c:738
 dccp_feat_init+0x266/0x6b0 net/dccp/feat.c:1469
 dccp_init_sock+0x2f1/0x3c0 net/dccp/proto.c:205
 dccp_v6_init_sock+0x1a/0x80 net/dccp/ipv6.c:1012
 inet6_create net/ipv6/af_inet6.c:255 [inline]
 inet6_create+0x8f1/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1391 [inline]
 SyS_socketpair+0x159/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7f5257a6d0f9
RSP: 002b:00007f5255fdf168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f5257b8cf80 RCX: 00007f5257a6d0f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007f5255fdf1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffd96ae53df R14: 00007f5255fdf300 R15: 0000000000022000
CPU: 1 PID: 14670 Comm: syz-executor.2 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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
 kmemdup+0x23/0x50 mm/util.c:119
 kmemdup include/linux/string.h:449 [inline]
 dccp_feat_clone_sp_val.part.0+0x4a/0xd0 net/dccp/feat.c:374
 dccp_feat_clone_sp_val net/dccp/feat.c:373 [inline]
 __feat_register_sp+0x19d/0x490 net/dccp/feat.c:738
 dccp_feat_init+0x266/0x6b0 net/dccp/feat.c:1469
 dccp_init_sock+0x2f1/0x3c0 net/dccp/proto.c:205
 dccp_v6_init_sock+0x1a/0x80 net/dccp/ipv6.c:1012
 inet6_create net/ipv6/af_inet6.c:255 [inline]
 inet6_create+0x8f1/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1391 [inline]
 SyS_socketpair+0x159/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fc9f89890f9
RSP: 002b:00007fc9f6efb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007fc9f8aa8f80 RCX: 00007fc9f89890f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007fc9f6efb1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffeca7ede1f R14: 00007fc9f6efb300 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: 14732 Comm: syz-executor.3 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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]
 dccp_feat_entry_new+0x173/0x350 net/dccp/feat.c:467
 dccp_feat_push_change net/dccp/feat.c:487 [inline]
 __feat_register_sp+0x1c9/0x490 net/dccp/feat.c:741
 dccp_feat_init+0x266/0x6b0 net/dccp/feat.c:1469
 dccp_init_sock+0x2f1/0x3c0 net/dccp/proto.c:205
 dccp_v6_init_sock+0x1a/0x80 net/dccp/ipv6.c:1012
 inet6_create net/ipv6/af_inet6.c:255 [inline]
 inet6_create+0x8f1/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1391 [inline]
 SyS_socketpair+0x159/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7f5257a6d0f9
RSP: 002b:00007f5255fdf168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f5257b8cf80 RCX: 00007f5257a6d0f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007f5255fdf1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffd96ae53df R14: 00007f5255fdf300 R15: 0000000000022000
CPU: 1 PID: 14736 Comm: syz-executor.2 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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]
 dccp_feat_entry_new+0x173/0x350 net/dccp/feat.c:467
 dccp_feat_push_change net/dccp/feat.c:487 [inline]
 __feat_register_sp+0x1c9/0x490 net/dccp/feat.c:741
 dccp_feat_init+0x266/0x6b0 net/dccp/feat.c:1469
 dccp_init_sock+0x2f1/0x3c0 net/dccp/proto.c:205
 dccp_v6_init_sock+0x1a/0x80 net/dccp/ipv6.c:1012
 inet6_create net/ipv6/af_inet6.c:255 [inline]
 inet6_create+0x8f1/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1391 [inline]
 SyS_socketpair+0x159/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fc9f89890f9
RSP: 002b:00007fc9f6efb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007fc9f8aa8f80 RCX: 00007fc9f89890f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007fc9f6efb1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffeca7ede1f R14: 00007fc9f6efb300 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: 14763 Comm: syz-executor.3 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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]
 ccid_get_builtin_ccids+0x6b/0x1c0 net/dccp/ccid.c:54
 dccp_feat_init+0x2be/0x6b0 net/dccp/feat.c:1479
 dccp_init_sock+0x2f1/0x3c0 net/dccp/proto.c:205
 dccp_v6_init_sock+0x1a/0x80 net/dccp/ipv6.c:1012
 inet6_create net/ipv6/af_inet6.c:255 [inline]
 inet6_create+0x8f1/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1391 [inline]
 SyS_socketpair+0x159/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7f5257a6d0f9
RSP: 002b:00007f5255fdf168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f5257b8cf80 RCX: 00007f5257a6d0f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007f5255fdf1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffd96ae53df R14: 00007f5255fdf300 R15: 0000000000022000
CPU: 1 PID: 14766 Comm: syz-executor.2 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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]
 ccid_get_builtin_ccids+0x6b/0x1c0 net/dccp/ccid.c:54
 dccp_feat_init+0x2be/0x6b0 net/dccp/feat.c:1479
 dccp_init_sock+0x2f1/0x3c0 net/dccp/proto.c:205
 dccp_v6_init_sock+0x1a/0x80 net/dccp/ipv6.c:1012
 inet6_create net/ipv6/af_inet6.c:255 [inline]
 inet6_create+0x8f1/0xe20 net/ipv6/af_inet6.c:110
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socketpair net/socket.c:1391 [inline]
 SyS_socketpair+0x159/0x480 net/socket.c:1366
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fc9f89890f9
RSP: 002b:00007fc9f6efb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007fc9f8aa8f80 RCX: 00007fc9f89890f9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 000000000000000a
RBP: 00007fc9f6efb1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffeca7ede1f R14: 00007fc9f6efb300 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: 14800 Comm: syz-executor.2 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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]
 ccid_get_builtin_ccids+0x6b/0x1c0 net/dccp/ccid.c:54
 dccp_feat_init+0x2e4/0x6b0 net/dccp/feat.c:1481

Crashes (5):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/02/16 08:19 linux-4.14.y a8ad60f2af58 6be0f1f5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 possible deadlock in tty_port_tty_get
2023/01/02 13:49 linux-4.14.y c4215ee4771b ab32d508 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 possible deadlock in tty_port_tty_get
2022/09/27 16:36 linux-4.14.y 4edbf74132a4 10323ddf .config console log report info ci2-linux-4-14 possible deadlock in tty_port_tty_get
2022/08/28 12:20 linux-4.14.y e548869f356f 07177916 .config console log report info ci2-linux-4-14 possible deadlock in tty_port_tty_get
2022/08/20 20:11 linux-4.14.y b641242202ed 26a13b38 .config console log report info ci2-linux-4-14 possible deadlock in tty_port_tty_get
* Struck through repros no longer work on HEAD.