syzbot


possible deadlock in serial8250_console_write

Status: auto-closed as invalid on 2019/06/08 21:57
Reported-by: syzbot+e14f5193a7ed418b4d14@syzkaller.appspotmail.com
First crash: 2022d, last: 2022d
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream possible deadlock in serial8250_console_write hams 4 12d 83d 0/27 upstream: reported on 2024/04/02 17:32

Sample crash report:
  cache: kmalloc-4096, object size: 4096, buffer size: 4352, default order: 3, min order: 1
  kmalloc-4096 debugging increased min order, use slub_debug=O to disable.
  node 0: slabs: 1351, objs: 8083, free: 0

======================================================
WARNING: possible circular locking dependency detected
4.14.87+ #20 Not tainted
------------------------------------------------------
syz-executor2/16362 is trying to acquire lock:
 (&port_lock_key){-.-.}, at: [<ffffffffb8776e3f>] serial8250_console_write+0x6af/0x800 drivers/tty/serial/8250/8250_port.c:3232

but task is already holding lock:
 (&(&port->lock)->rlock){-.-.}, at: [<ffffffffb874b3cb>] pty_write+0xdb/0x1c0 drivers/tty/pty.c:119

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #1 (&(&port->lock)->rlock){-.-.}:
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0x41/0x50 kernel/locking/spinlock.c:160
       tty_port_tty_get+0x1b/0x80 drivers/tty/tty_port.c:287
       tty_port_default_wakeup+0x11/0x40 drivers/tty/tty_port.c:46
       serial8250_tx_chars+0x417/0xa70 drivers/tty/serial/8250/8250_port.c:1810
       serial8250_handle_irq.part.15+0x1b1/0x1f0 drivers/tty/serial/8250/8250_port.c:1883
       serial8250_handle_irq drivers/tty/serial/8250/8250_port.c:1869 [inline]
       serial8250_default_handle_irq+0x9b/0x110 drivers/tty/serial/8250/8250_port.c:1899
       serial8250_interrupt+0xea/0x1a0 drivers/tty/serial/8250/8250_core.c:129
       __handle_irq_event_percpu+0xf8/0x770 kernel/irq/handle.c:147
       handle_irq_event_percpu+0x76/0x150 kernel/irq/handle.c:187
       handle_irq_event+0xa1/0x12d kernel/irq/handle.c:204
       handle_edge_irq+0x1f0/0x7f0 kernel/irq/chip.c:770
       generic_handle_irq_desc include/linux/irqdesc.h:158 [inline]
       handle_irq+0x242/0x328 arch/x86/kernel/irq_64.c:78
       do_IRQ+0x7d/0x1b0 arch/x86/kernel/irq.c:230
       ret_from_intr+0x0/0x22
       arch_local_irq_restore arch/x86/include/asm/paravirt.h:778 [inline]
       __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
       _raw_spin_unlock_irqrestore+0x59/0x70 kernel/locking/spinlock.c:192
       spin_unlock_irqrestore include/linux/spinlock.h:372 [inline]
       uart_write+0x2a7/0x480 drivers/tty/serial/serial_core.c:611
       process_output_block drivers/tty/n_tty.c:595 [inline]
       n_tty_write+0x4f5/0xda0 drivers/tty/n_tty.c:2333
       do_tty_write drivers/tty/tty_io.c:957 [inline]
       tty_write+0x397/0x810 drivers/tty/tty_io.c:1041
       redirected_tty_write+0x9a/0xa0 drivers/tty/tty_io.c:1062
       __vfs_write+0xf4/0x5c0 fs/read_write.c:482
       vfs_write+0x17f/0x4d0 fs/read_write.c:546
       SYSC_write fs/read_write.c:593 [inline]
       SyS_write+0xc2/0x1a0 fs/read_write.c:585
       do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289
       entry_SYSCALL_64_after_hwframe+0x42/0xb7

-> #0 (&port_lock_key){-.-.}:
       lock_acquire+0x10f/0x380 kernel/locking/lockdep.c:3991
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0x41/0x50 kernel/locking/spinlock.c:160
       serial8250_console_write+0x6af/0x800 drivers/tty/serial/8250/8250_port.c:3232
       call_console_drivers kernel/printk/printk.c:1579 [inline]
       console_unlock+0x5b9/0xb50 kernel/printk/printk.c:2241
       vprintk_emit+0x142/0x180 kernel/printk/printk.c:1777
       vprintk_func+0x58/0x159 kernel/printk/printk_safe.c:401
       printk+0xa7/0xcf kernel/printk/printk.c:1850
       warn_alloc.cold.35+0x153/0x1b7 mm/page_alloc.c:3256
       __alloc_pages_slowpath mm/page_alloc.c:4117 [inline]
       __alloc_pages_nodemask+0x19f4/0x2280 mm/page_alloc.c:4220
       __alloc_pages include/linux/gfp.h:461 [inline]
       __alloc_pages_node include/linux/gfp.h:474 [inline]
       alloc_pages_node include/linux/gfp.h:488 [inline]
       alloc_slab_page mm/slub.c:1437 [inline]
       allocate_slab mm/slub.c:1588 [inline]
       new_slab+0x3c0/0x470 mm/slub.c:1651
       new_slab_objects mm/slub.c:2434 [inline]
       ___slab_alloc.constprop.35+0x2e2/0x480 mm/slub.c:2586
       __slab_alloc.isra.26.constprop.34+0x4b/0x90 mm/slub.c:2626
       slab_alloc_node mm/slub.c:2689 [inline]
       slab_alloc mm/slub.c:2731 [inline]
       __kmalloc+0x209/0x340 mm/slub.c:3756
       kmalloc include/linux/slab.h:493 [inline]
       tty_buffer_alloc drivers/tty/tty_buffer.c:169 [inline]
       __tty_buffer_request_room+0x19d/0x510 drivers/tty/tty_buffer.c:267
       tty_insert_flip_string_fixed_flag+0x7f/0x1b0 drivers/tty/tty_buffer.c:312
       tty_insert_flip_string include/linux/tty_flip.h:37 [inline]
       pty_write+0x10d/0x1c0 drivers/tty/pty.c:121
       n_tty_write+0x969/0xda0 drivers/tty/n_tty.c:2356
       do_tty_write drivers/tty/tty_io.c:957 [inline]
       tty_write+0x397/0x810 drivers/tty/tty_io.c:1041
       __vfs_write+0xf4/0x5c0 fs/read_write.c:482
       vfs_write+0x17f/0x4d0 fs/read_write.c:546
       SYSC_write fs/read_write.c:593 [inline]
       SyS_write+0xc2/0x1a0 fs/read_write.c:585
       do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289
       entry_SYSCALL_64_after_hwframe+0x42/0xb7

other info that might help us debug this:

 Possible unsafe locking scenario:

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

 *** DEADLOCK ***

6 locks held by syz-executor2/16362:
 #0:  (&tty->ldisc_sem){++++}, at: [<ffffffffb87409b0>] tty_ldisc_ref_wait+0x20/0x80 drivers/tty/tty_ldisc.c:275
 #1:  (&tty->atomic_write_lock){+.+.}, at: [<ffffffffb87262eb>] tty_write_lock+0x1b/0x60 drivers/tty/tty_io.c:883
 #2:  (&tty->termios_rwsem){++++}, at: [<ffffffffb8735c6f>] n_tty_write+0xa8f/0xda0 drivers/tty/n_tty.c:2378
 #3:  (&ldata->output_lock){+.+.}, at: [<ffffffffb8735b10>] n_tty_write+0x930/0xda0 drivers/tty/n_tty.c:2355
 #4:  (&(&port->lock)->rlock){-.-.}, at: [<ffffffffb874b3cb>] pty_write+0xdb/0x1c0 drivers/tty/pty.c:119
 #5:  (console_lock){+.+.}, at: [<ffffffffb7c20bce>] vprintk_emit+0x10e/0x180 kernel/printk/printk.c:1776

stack backtrace:
CPU: 1 PID: 16362 Comm: syz-executor2 Not tainted 4.14.87+ #20
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0xb9/0x11b lib/dump_stack.c:53
 print_circular_bug.isra.18.cold.43+0x2d3/0x40c kernel/locking/lockdep.c:1258
 check_prev_add kernel/locking/lockdep.c:1901 [inline]
 check_prevs_add kernel/locking/lockdep.c:2018 [inline]
 validate_chain kernel/locking/lockdep.c:2460 [inline]
 __lock_acquire+0x2ff9/0x4320 kernel/locking/lockdep.c:3487
 lock_acquire+0x10f/0x380 kernel/locking/lockdep.c:3991
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x41/0x50 kernel/locking/spinlock.c:160
 serial8250_console_write+0x6af/0x800 drivers/tty/serial/8250/8250_port.c:3232
 call_console_drivers kernel/printk/printk.c:1579 [inline]
 console_unlock+0x5b9/0xb50 kernel/printk/printk.c:2241
 vprintk_emit+0x142/0x180 kernel/printk/printk.c:1777
 vprintk_func+0x58/0x159 kernel/printk/printk_safe.c:401
 printk+0xa7/0xcf kernel/printk/printk.c:1850
 warn_alloc.cold.35+0x153/0x1b7 mm/page_alloc.c:3256
 __alloc_pages_slowpath mm/page_alloc.c:4117 [inline]
 __alloc_pages_nodemask+0x19f4/0x2280 mm/page_alloc.c:4220
 __alloc_pages include/linux/gfp.h:461 [inline]
 __alloc_pages_node include/linux/gfp.h:474 [inline]
 alloc_pages_node include/linux/gfp.h:488 [inline]
 alloc_slab_page mm/slub.c:1437 [inline]
 allocate_slab mm/slub.c:1588 [inline]
 new_slab+0x3c0/0x470 mm/slub.c:1651
 new_slab_objects mm/slub.c:2434 [inline]
 ___slab_alloc.constprop.35+0x2e2/0x480 mm/slub.c:2586
 __slab_alloc.isra.26.constprop.34+0x4b/0x90 mm/slub.c:2626
 slab_alloc_node mm/slub.c:2689 [inline]
 slab_alloc mm/slub.c:2731 [inline]
 __kmalloc+0x209/0x340 mm/slub.c:3756
 kmalloc include/linux/slab.h:493 [inline]
 tty_buffer_alloc drivers/tty/tty_buffer.c:169 [inline]
 __tty_buffer_request_room+0x19d/0x510 drivers/tty/tty_buffer.c:267
 tty_insert_flip_string_fixed_flag+0x7f/0x1b0 drivers/tty/tty_buffer.c:312
 tty_insert_flip_string include/linux/tty_flip.h:37 [inline]
 pty_write+0x10d/0x1c0 drivers/tty/pty.c:121
 n_tty_write+0x969/0xda0 drivers/tty/n_tty.c:2356
 do_tty_write drivers/tty/tty_io.c:957 [inline]
 tty_write+0x397/0x810 drivers/tty/tty_io.c:1041
 __vfs_write+0xf4/0x5c0 fs/read_write.c:482
 vfs_write+0x17f/0x4d0 fs/read_write.c:546
 SYSC_write fs/read_write.c:593 [inline]
 SyS_write+0xc2/0x1a0 fs/read_write.c:585
 do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x457659
RSP: 002b:00007f61a0d84c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457659
RDX: 00000000ffffffc0 RSI: 0000000020000080 RDI: 0000000000000005
RBP: 000000000072bfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f61a0d856d4
R13: 00000000004c5e16 R14: 00000000004da7a8 R15: 00000000ffffffff
syz-executor0: page allocation stalls for 10270ms, order:0, mode:0x14201ca(GFP_HIGHUSER_MOVABLE|__GFP_COLD), nodemask=(null)
syz-fuzzer: page allocation stalls for 10640ms, order:0, mode:0x14201ca(GFP_HIGHUSER_MOVABLE|__GFP_COLD), nodemask=(null)
CPU: 0 PID: 1800 Comm: syz-fuzzer Not tainted 4.14.87+ #20
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0xb9/0x11b lib/dump_stack.c:53
 warn_alloc.cold.35+0x9d/0x1b7 mm/page_alloc.c:3260
 __alloc_pages_slowpath mm/page_alloc.c:4000 [inline]
 __alloc_pages_nodemask+0x1425/0x2280 mm/page_alloc.c:4220
 __alloc_pages include/linux/gfp.h:461 [inline]
 __alloc_pages_node include/linux/gfp.h:474 [inline]
 alloc_pages_node include/linux/gfp.h:488 [inline]
 __page_cache_alloc include/linux/pagemap.h:226 [inline]
 page_cache_read mm/filemap.c:2286 [inline]
 filemap_fault+0xcdd/0x14a0 mm/filemap.c:2470
 ext4_filemap_fault+0x7d/0xb0 fs/ext4/inode.c:6179
 __do_fault+0x80/0x210 mm/memory.c:3194
 do_read_fault mm/memory.c:3604 [inline]
 do_fault mm/memory.c:3730 [inline]
 handle_pte_fault mm/memory.c:3960 [inline]
 __handle_mm_fault+0x991/0x25f0 mm/memory.c:4084
 handle_mm_fault+0x2f2/0x6eb mm/memory.c:4121
 __do_page_fault+0x45d/0xb60 arch/x86/mm/fault.c:1425
 page_fault+0x42/0x50 arch/x86/entry/entry_64.S:1104
RIP: 0020:0x13
RSP: 0020:000000c42dc61a20 EFLAGS: 00000000
warn_alloc_show_mem: 7 callbacks suppressed
Mem-Info:
active_anon:95357 inactive_anon:1375184 isolated_anon:0
 active_file:18 inactive_file:0 isolated_file:0
 unevictable:25804 dirty:0 writeback:0 unstable:0
 slab_reclaimable:7792 slab_unreclaimable:60823
 mapped:61414 shmem:48 pagetables:11530 bounce:0
 free:4350 free_pcp:42 free_cma:0
Node 0 active_anon:381428kB inactive_anon:5500736kB active_file:72kB inactive_file:0kB unevictable:103216kB isolated(anon):0kB isolated(file):0kB mapped:245656kB dirty:0kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
DMA32 free:15360kB min:4792kB low:7868kB high:10944kB active_anon:1708kB inactive_anon:2945976kB active_file:0kB inactive_file:56kB unevictable:38964kB writepending:0kB present:3145324kB managed:3079672kB mlocked:38964kB kernel_stack:5216kB pagetables:18096kB bounce:0kB free_pcp:28kB local_pcp:16kB free_cma:0kB
lowmem_reserve[]: 0 3437 3437
Normal free:2040kB min:5480kB low:9000kB high:12520kB active_anon:379720kB inactive_anon:2554760kB active_file:140kB inactive_file:28kB unevictable:64252kB writepending:0kB present:4718592kB managed:3521688kB mlocked:64252kB kernel_stack:9664kB pagetables:28024kB bounce:0kB free_pcp:140kB local_pcp:40kB free_cma:0kB
lowmem_reserve[]: 0 0 0
DMA32: 72*4kB (UMH) 40*8kB (UMH) 26*16kB (UMEH) 128*32kB (UMH) 96*64kB (UMH) 32*128kB (UH) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 15360kB
Normal: 252*4kB (UMH) 43*8kB (M) 40*16kB (UM) 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 1992kB
12337 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap  = 0kB
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
315639 pages reserved
oom_reaper: reaped process 16343 (syz-executor4), now anon-rss:18224kB, file-rss:19488kB, shmem-rss:0kB
SLUB: Unable to allocate memory on node -1, gfp=0x1080020(GFP_ATOMIC)
  cache: kmalloc-4096, object size: 4096, buffer size: 4352, default order: 3, min order: 1
  kmalloc-4096 debugging increased min order, use slub_debug=O to disable.
  node 0: slabs: 1351, objs: 8083, free: 0
oom_reaper: reaped process 16345 (syz-executor3), now anon-rss:18060kB, file-rss:19488kB, shmem-rss:0kB
oom_reaper: reaped process 16356 (syz-executor0), now anon-rss:17828kB, file-rss:11228kB, shmem-rss:0kB
CPU: 1 PID: 16358 Comm: syz-executor0 Not tainted 4.14.87+ #20
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0xb9/0x11b lib/dump_stack.c:53
 warn_alloc.cold.35+0x9d/0x1b7 mm/page_alloc.c:3260
 __alloc_pages_slowpath mm/page_alloc.c:4000 [inline]
 __alloc_pages_nodemask+0x1425/0x2280 mm/page_alloc.c:4220
 __alloc_pages include/linux/gfp.h:461 [inline]
 __alloc_pages_node include/linux/gfp.h:474 [inline]
 alloc_pages_node include/linux/gfp.h:488 [inline]
 __page_cache_alloc include/linux/pagemap.h:226 [inline]
 page_cache_read mm/filemap.c:2286 [inline]
 filemap_fault+0xcdd/0x14a0 mm/filemap.c:2470
 ext4_filemap_fault+0x7d/0xb0 fs/ext4/inode.c:6179
 __do_fault+0x80/0x210 mm/memory.c:3194
 do_read_fault mm/memory.c:3604 [inline]
 do_fault mm/memory.c:3730 [inline]
 handle_pte_fault mm/memory.c:3960 [inline]
 __handle_mm_fault+0x991/0x25f0 mm/memory.c:4084
 handle_mm_fault+0x3d5/0x6eb mm/memory.c:4121
 faultin_page mm/gup.c:502 [inline]
 __get_user_pages+0x35d/0xe20 mm/gup.c:702
 populate_vma_page_range+0x17a/0x210 mm/gup.c:1219
 __mm_populate+0x1bf/0x300 mm/gup.c:1267
 mm_populate include/linux/mm.h:2176 [inline]
 SYSC_mlockall mm/mlock.c:816 [inline]
 SyS_mlockall+0x3e2/0x510 mm/mlock.c:790
 do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x457659
RSP: 002b:00007fac07fdcc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000097
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000457659
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fac07fdd6d4
R13: 00000000004c2d35 R14: 00000000004d5060 R15: 00000000ffffffff
syz-executor3 invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null),  order=0, oom_score_adj=1000
CPU: 1 PID: 16380 Comm: syz-executor3 Not tainted 4.14.87+ #20
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0xb9/0x11b lib/dump_stack.c:53
 dump_header+0x17d/0x7a8 mm/oom_kill.c:422
 oom_kill_process.cold.8+0x10/0xc88 mm/oom_kill.c:861
 out_of_memory+0x669/0xa60 mm/oom_kill.c:1075
 __alloc_pages_may_oom mm/page_alloc.c:3356 [inline]
 __alloc_pages_slowpath mm/page_alloc.c:4055 [inline]
 __alloc_pages_nodemask+0x1969/0x2280 mm/page_alloc.c:4220
 __alloc_pages include/linux/gfp.h:461 [inline]
 __alloc_pages_node include/linux/gfp.h:474 [inline]
 alloc_pages_node include/linux/gfp.h:488 [inline]
 wp_page_copy+0x16d/0x13e0 mm/memory.c:2496
 do_wp_page+0x24c/0x1880 mm/memory.c:2778
 handle_pte_fault mm/memory.c:3976 [inline]
 __handle_mm_fault+0xdc7/0x25f0 mm/memory.c:4084
 handle_mm_fault+0x3d5/0x6eb mm/memory.c:4121
 faultin_page mm/gup.c:502 [inline]
 __get_user_pages+0x35d/0xe20 mm/gup.c:702
 populate_vma_page_range+0x17a/0x210 mm/gup.c:1219
 __mm_populate+0x1bf/0x300 mm/gup.c:1267
 mm_populate include/linux/mm.h:2176 [inline]
 SYSC_mlockall mm/mlock.c:816 [inline]
 SyS_mlockall+0x3e2/0x510 mm/mlock.c:790
 do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x457659
RSP: 002b:00007fcf606e1c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000097
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000457659
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf606e26d4
R13: 00000000004c2d35 R14: 00000000004d5060 R15: 00000000ffffffff
Mem-Info:
active_anon:95397 inactive_anon:1378436 isolated_anon:0
 active_file:150 inactive_file:151 isolated_file:32
 unevictable:21219 dirty:131 writeback:0 unstable:0
 slab_reclaimable:7822 slab_unreclaimable:59946
 mapped:58383 shmem:48 pagetables:11504 bounce:0
 free:5916 free_pcp:339 free_cma:0
Node 0 active_anon:381588kB inactive_anon:5513744kB active_file:280kB inactive_file:100kB unevictable:84876kB isolated(anon):0kB isolated(file):128kB mapped:232932kB dirty:524kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no
DMA32 free:18524kB min:4792kB low:7868kB high:10944kB active_anon:1708kB inactive_anon:2946244kB active_file:368kB inactive_file:224kB unevictable:36752kB writepending:0kB present:3145324kB managed:3079672kB mlocked:36820kB kernel_stack:5504kB pagetables:18512kB bounce:0kB free_pcp:8kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 3437 3437
Normal free:6148kB min:5480kB low:9000kB high:12520kB active_anon:379624kB inactive_anon:2567420kB active_file:476kB inactive_file:336kB unevictable:47252kB writepending:776kB present:4718592kB managed:3521688kB mlocked:47264kB kernel_stack:9408kB pagetables:27504kB bounce:0kB free_pcp:120kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 0
DMA32: 23*4kB (UM) 33*8kB (UM) 21*16kB (UM) 119*32kB (UMH) 113*64kB (UMH) 46*128kB (UMH) 6*256kB (UMH) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 19156kB
Normal: 270*4kB (UME) 258*8kB (UME) 42*16kB (UE) 54*32kB (UME) 1*64kB (E) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 5608kB
9380 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap  = 0kB
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
315639 pages reserved
[ pid ]   uid  tgid total_vm      rss nr_ptes nr_pmds swapents oom_score_adj name
[  190]     0   190     5366      169      15       3        0         -1000 udevd
[ 1492]     0  1492     2493      572       9       3        0             0 dhclient
[ 1633]     0  1633    14312      199      23       3        0             0 rsyslogd
[ 1685]     0  1685     4725       50      15       3        0             0 cron
[ 1706]     0  1706     3735       44      10       3        0             0 mcstransd
[ 1716]     0  1716    12490      152      27       3        0         -1000 sshd
[ 1721]     0  1721    12927     1231      27       3        0             0 restorecond
[ 1764]     0  1764     3649       41      12       3        0             0 getty
[ 1786]     0  1786    17821      213      39       3        0             0 sshd
[ 1788]     0  1788   122970    90081     202       6        0             0 syz-fuzzer
[ 1844]     0  1844    17553      166      22       3        0             0 syz-executor0
[ 1845]     0  1845    17553      167      22       3        0             0 syz-executor5
[ 1846]     0  1846    17553      166      22       3        0             0 syz-executor1
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[ 1848]     0  1848    17553      168      22       3        0             0 syz-executor3
[ 1849]     0  1849    17553      167      22       3        0             0 syz-executor4
[ 1850]     0  1850    17552     8394      23       4        0             0 syz-executor5
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[ 1852]     0  1852    17552     8348      23       4        0             0 syz-executor2
[ 1853]     0  1853    17552     8363      23       4        0             0 syz-executor1
[ 1854]     0  1854    17552     8322      23       4        0             0 syz-executor3
[ 1855]     0  1855    17552     8381      23       4        0             0 syz-executor4
[ 4760]     0  4760    17618     8371      25       4        0          1000 syz-executor3
[ 4761]     0  4761    17618     8368      25       4        0          1000 syz-executor1
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[ 5012]     0  5012    17585     8209      23       3        0          1000 syz-executor4
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[ 5101]     0  5101    17585     8211      23       3        0          1000 syz-executor4
[ 9406]     0  9406    17618    12699      31       3        0          1000 syz-executor5
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[ 9784]     0  9784    17618    12699      31       3        0          1000 syz-executor2
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[10007]     0 10007    17585     8211      23       3        0          1000 syz-executor2
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[10020]     0 10020    17585     8211      23       3        0          1000 syz-executor4
[10044]     0 10044    17585     8216      23       3        0          1000 syz-executor2
[10058]     0 10058    17585     8216      23       3        0          1000 syz-executor2
[10059]     0 10059    17585     8216      23       3        0          1000 syz-executor4
[10084]     0 10084    17585     8216      23       3        0          1000 syz-executor2
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[10111]     0 10111    17618    12699      31       3        0          1000 syz-executor2
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[10536]     0 10536    17618    12699      31       3        0          1000 syz-executor4
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[12722]     0 12722    17585     8217      23       3        0          1000 syz-executor3
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[13243]     0 13243    17618    12699      31       3        0          1000 syz-executor3
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[13313]     0 13313    17618    12699      31       3        0          1000 syz-executor0
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[13340]     0 13340    17651    12761      31       3        0          1000 syz-executor3
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[13380]     0 13380    17618    12699      31       3        0          1000 syz-executor3
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[13588]     0 13588    17651    12763      31       3        0          1000 syz-executor0
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[14040]     0 14040    17618    12699      31       3        0          1000 syz-executor3
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[14173]     0 14173    17651    12762      31       3        0          1000 syz-executor0
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[14495]     0 14495    17618    12699      31       3        0          1000 syz-executor3
[14496]     0 14496    17618     8222      24       3        0          1000 syz-executor4
[14501]     0 14501    17651    12729      31       3        0          1000 syz-executor3
[14512]     0 14512    17684    12762      31       3        0          1000 syz-executor0
[14513]     0 14513    17585     8217      23       3        0          1000 syz-executor3
[14529]     0 14529    17750     8232      26       3        0          1000 syz-executor4
[14531]     0 14531    17618    12730      31       3        0          1000 syz-executor3
[14565]     0 14565    17618    12730      31       3        0          1000 syz-executor3
[14569]     0 14569    17618    12699      31       3        0          1000 syz-executor0
[14571]     0 14571    17618    12699      31       3        0          1000 syz-executor2
[14581]     0 14581    17651    12730      31       3        0          1000 syz-executor3
[14596]     0 14596    17651    12762      31       3        0          1000 syz-executor0
[14597]     0 14597    17651    12761      31       3        0          1000 syz-executor2
[14599]     0 14599    17618    12699      31       3        0          1000 syz-executor3
[14605]     0 14605    17651    12729      31       3        0          1000 syz-executor3
[14626]     0 14626    17585     8220      24       3        0          1000 syz-executor3
[14631]     0 14631    17618     8222      24       3        0          1000 syz-executor3
[14638]     0 14638    17585     8217      23       3        0          1000 syz-executor3
[14646]     0 14646    17618    12699      31       3        0          1000 syz-executor0
[14658]     0 14658    17618    12730      31       3        0          1000 syz-executor3
[14670]     0 14670    17684    12762      31       3        0          1000 syz-executor0
[14673]     0 14673    17618    12699      31       3        0          1000 syz-executor3
[14677]     0 14677    17651    12731      31       3        0          1000 syz-executor3
[14708]     0 14708    17618    12699      31       3        0          1000 syz-executor0
[14713]     0 14713    17618    12730      31       3        0          1000 syz-executor3
[14730]     0 14730    17651    12730      31       3        0          1000 syz-executor3
[14741]     0 14741    17684    12762      31       3        0          1000 syz-executor0
[14768]     0 14768    17618    12699      31       3        0          1000 syz-executor4
[14770]     0 14770    17618    12699      31       3        0          1000 syz-executor3
[14778]     0 14778    17651    12729      31       3        0          1000 syz-executor3
[14784]     0 14784    17585     8219      23       3        0          1000 syz-executor3
[14799]     0 14799    17618    12730      31       3        0          1000 syz-executor3
[14820]     0 14820    17585     8218      23       3        0          1000 syz-executor3
[14822]     0 14822    17618     8222      24       3        0          1000 syz-executor3
[14833]     0 14833    17618    12730      31       3        0          1000 syz-executor0
[14835]     0 14835    17618    12699      31       3        0          1000 syz-executor3
[14845]     0 14845    17651    12731      31       3        0          1000 syz-executor3
[14860]     0 14860    17684    12763      31       3        0          1000 syz-executor0
[14868]     0 14868    17618    12699      31       3        0          1000 syz-executor3
[14877]     0 14877    17651    12762      31       3        0          1000 syz-executor3
[14901]     0 14901    17618    12699      31       3        0          1000 syz-executor0
[14911]     0 14911    17618    12699      31       3        0          1000 syz-executor3
[14926]     0 14926    17618    12729      31       3        0          1000 syz-executor3
[14930]     0 14930    17684    12762      31       3        0          1000 syz-executor0
[14949]     0 14949    17618    12699      31       3        0          1000 syz-executor3
[14967]     0 14967    17618    12699      31       3        0          1000 syz-executor0
[14970]     0 14970    17651    12729      31       3        0          1000 syz-executor3
[14989]     0 14989    17684    12762      31       3        0          1000 syz-executor0
[15004]     0 15004    17618    12699      31       3        0          1000 syz-executor3
[15016]     0 15016    17651    12729      31       3        0          1000 syz-executor3
[15042]     0 15042    17618    12699      31       3        0          1000 syz-executor0
[15050]     0 15050    17618    12699      31       3        0          1000 syz-executor3
[15072]     0 15072    17651    12761      31       3        0          1000 syz-executor3
[15086]     0 15086    17684    12762      31       3        0          1000 syz-executor0
[15091]     0 15091    17618    12699      31       3        0          1000 syz-executor3
[15108]     0 15108    17618    12699      31       3        0          1000 syz-executor0
[15113]     0 15113    17618    12699      31       3        0          1000 syz-executor3
[15133]     0 15133    17651    12729      31       3        0          1000 syz-executor3
[15139]     0 15139    17684    12762      31       3        0          1000 syz-executor0
[15151]     0 15151    17618    12699      31       3        0          1000 syz-executor3
[15157]     0 15157    17651    12731      31       3        0          1000 syz-executor3
[15184]     0 15184    17618    12699      31       3        0          1000 syz-executor0
[15188]     0 15188    17618    12699      31       3        0          1000 syz-executor3
[15191]     0 15191    17651    12729      31       3        0          1000 syz-executor3
[15196]     0 15196    17585     8219      23       3        0          1000 syz-executor3
[15198]     0 15198    17618     8221      24       3        0          1000 syz-executor3
[15213]     0 15213    17684    12762      31       3        0          1000 syz-executor0
[15227]     0 15227    17618    12699      31       3        0          1000 syz-executor3
[15234]     0 15234    17651    12731      31       3        0          1000 syz-executor3
[15259]     0 15259    17618    12699      31       3        0          1000 syz-executor3
[15262]     0 15262    17618    12699      31       3        0          1000 syz-executor0
[15265]     0 15265    18326    12730      32       3        0          1000 syz-executor3
[15283]     0 15283    17618    12699      31       3        0          1000 syz-executor3
[15296]     0 15296    17684    12733      31       3        0          1000 syz-executor0
[15300]     0 15300    17651    12731      31       3        0          1000 syz-executor3
[15313]     0 15313    17618    12730      31       3        0          1000 syz-executor3
[15342]     0 15342    17618    12699      31       3        0          1000 syz-executor0
[15346]     0 15346    17651    12730      31       3        0          1000 syz-executor3
[15375]     0 15375    17618    12699      31       3        0          1000 syz-executor3
[15380]     0 15380    17684    12762      31       3        0          1000 syz-executor0
[15388]     0 15388    17651    12762      31       3        0          1000 syz-executor3
[15410]     0 15410    17618    12699      31       3        0          1000 syz-executor3
[15411]     0 15411    17618    12699      31       3        0          1000 syz-executor0
[15415]     0 15415    17618    12729      31       3        0          1000 syz-executor3
[15428]     0 15428    17684    12762      31       3        0          1000 syz-executor0
[15439]     0 15439    17618    12699      31       3        0          1000 syz-executor3
[15446]     0 15446    17651    12729      31       3        0          1000 syz-executor3
[15461]     0 15461    17618    12699      31       3        0          1000 syz-executor0
[15479]     0 15479    17618    12699      31       3        0          1000 syz-executor3
[15488]     0 15488    17651    12762      31       3        0          1000 syz-executor3
[15489]     0 15489    17651    12761      31       3        0          1000 syz-executor0
[15507]     0 15507    17618    12699      31       3        0          1000 syz-executor3
[15516]     0 15516    17651    12729      31       3        0          1000 syz-executor3
[15531]     0 15531    17618    12699      31       3        0          1000 syz-executor0
[15538]     0 15538    17618    12699      31       3        0          1000 syz-executor3
[15547]     0 15547    17651    12729      31       3        0          1000 syz-executor3
[15552]     0 15552    17684    12764      31       3        0          1000 syz-executor0
[15565]     0 15565    17618    12730      31       3        0          1000 syz-executor3
[15576]     0 15576    17651    12730      31       3        0          1000 syz-executor3
[15593]     0 15593    17618    12699      31       3        0          1000 syz-executor0
[15601]     0 15601    17618    12699      31       3        0          1000 syz-executor3
[15610]     0 15610    17651    12762      31       3        0          1000 syz-executor0
[15612]     0 15612    17651    12729      31       3        0          1000 syz-executor3
[15637]     0 15637    17618    12699      31       3        0          1000 syz-executor3
[15654]     0 15654    17651    12729      31       3        0          1000 syz-executor3
[15668]     0 15668    17618    12641      31       3        0          1000 syz-executor3
[15705]     0 15705    17618    12641      31       3        0          1000 syz-executor3
[15788]     0 15788    17618    12699      31       3        0          1000 syz-executor3
[15792]     0 15792    17684    12764      31       3        0          1000 syz-executor3
[16258]     0 16258     5365      170      14       3        0         -1000 udevd
[16259]     0 16259     5365      170      14       3        0         -1000 udevd
[16316]     0 16316    17585     8221      23       3        0          1000 syz-executor5
[16372]     0 16372     3649       42      12       3        0             0 getty
[16373]     0 16373     3649       42      13       3        0             0 getty
[16374]     0 16374     3649       42      13       3        0             0 getty
[16375]     0 16375     3649       41      12       3        0             0 getty
[16376]     0 16376     3649       41      11       4        0             0 getty
[16377]     0 16377     3649       42      13       3        0             0 getty
[16380]     0 16379    17618    17583      40       4        0          1000 syz-executor3
[16398]     0 16398     5365      170      14       3        0         -1000 udevd
[16399]     0 16399     5365      170      14       3        0         -1000 udevd
[16400]     0 16400     5365      170      14       3        0         -1000 udevd
[16406]     0 16406    17585    17071      40       4        0          1000 syz-executor5
[16410]     0 16410    17618    15277      36       4        0          1000 syz-executor0
[16411]     0 16411    17618     8216      25       4        0          1000 syz-executor4
[16414]     0 16414    17618     8195      26       4        0          1000 syz-executor1
Out of memory: Kill process 16379 (syz-executor3) score 1010 or sacrifice child
Killed process 16380 (syz-executor3) total-vm:70472kB, anon-rss:18068kB, file-rss:52264kB, shmem-rss:0kB
oom_reaper: reaped process 16380 (syz-executor3), now anon-rss:18068kB, file-rss:19488kB, shmem-rss:0kB
syz-executor2 invoked oom-killer: gfp_mask=0x14040c0(GFP_KERNEL|__GFP_COMP), nodemask=(null),  order=1, oom_score_adj=0
CPU: 1 PID: 1852 Comm: syz-executor2 Not tainted 4.14.87+ #20
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0xb9/0x11b lib/dump_stack.c:53
 dump_header+0x17d/0x7a8 mm/oom_kill.c:422
 oom_kill_process.cold.8+0x10/0xc88 mm/oom_kill.c:861
 out_of_memory+0x669/0xa60 mm/oom_kill.c:1075
 __alloc_pages_may_oom mm/page_alloc.c:3356 [inline]
 __alloc_pages_slowpath mm/page_alloc.c:4055 [inline]
 __alloc_pages_nodemask+0x1969/0x2280 mm/page_alloc.c:4220
 __alloc_pages include/linux/gfp.h:461 [inline]
 __alloc_pages_node include/linux/gfp.h:474 [inline]
 alloc_pages_node include/linux/gfp.h:488 [inline]
 alloc_slab_page mm/slub.c:1437 [inline]
 allocate_slab mm/slub.c:1588 [inline]
 new_slab+0x3c0/0x470 mm/slub.c:1651
 new_slab_objects mm/slub.c:2434 [inline]
 ___slab_alloc.constprop.35+0x2e2/0x480 mm/slub.c:2586
 __slab_alloc.isra.26.constprop.34+0x4b/0x90 mm/slub.c:2626
 slab_alloc_node mm/slub.c:2689 [inline]
 slab_alloc mm/slub.c:2731 [inline]
 kmem_cache_alloc+0x19e/0x2b0 mm/slub.c:2736
 getname_flags+0xc4/0x540 fs/namei.c:138
 getname fs/namei.c:209 [inline]
 user_path_mountpoint_at+0x22/0x70 fs/namei.c:2796
 SYSC_umount fs/namespace.c:1748 [inline]
 SyS_umount+0x131/0xc90 fs/namespace.c:1732
 do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45a0a7
RSP: 002b:00007fffaa05d208 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000045a0a7
RDX: 0000000000402eb0 RSI: 0000000000000002 RDI: 00007fffaa05d2b0
RBP: 00000000000005f2 R08: 0000000000000000 R09: 0000000000000010
R10: 000000000000000a R11: 0000000000000202 R12: 00007fffaa05e340
R13: 000000000271f940 R14: 0000000000000000 R15: 0000000000000002
Mem-Info:
active_anon:95343 inactive_anon:1377536 isolated_anon:0
 active_file:41 inactive_file:9 isolated_file:20
 unevictable:22682 dirty:27 writeback:0 unstable:0
 slab_reclaimable:7921 slab_unreclaimable:59648
 mapped:59212 shmem:48 pagetables:11529 bounce:0
 free:5893 free_pcp:81 free_cma:0
Node 0 active_anon:381272kB inactive_anon:5510144kB active_file:164kB inactive_file:36kB unevictable:90728kB isolated(anon):0kB isolated(file):80kB mapped:236848kB dirty:108kB writeback:0kB shmem:192kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no
DMA32 free:18148kB min:4792kB low:7868kB high:10944kB active_anon:1936kB inactive_anon:2953836kB active_file:276kB inactive_file:404kB unevictable:31352kB writepending:0kB present:3145324kB managed:3079672kB mlocked:31308kB kernel_stack:5472kB pagetables:18120kB bounce:0kB free_pcp:240kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 3437 3437
Normal free:5424kB min:5480kB low:9000kB high:12520kB active_anon:379388kB inactive_anon:2556288kB active_file:148kB inactive_file:376kB unevictable:58740kB writepending:8kB present:4718592kB managed:3521688kB mlocked:58740kB kernel_stack:9536kB pagetables:27996kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 0
DMA32: 43*4kB (UMEH) 25*8kB (UMH) 30*16kB (UME) 128*32kB (UMH) 106*64kB (UMH) 42*128kB (UMH) 6*256kB (MEH) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 18644kB
Normal: 79*4kB (UM) 332*8kB (UME) 76*16kB (UE) 31*32kB (UE) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 5180kB
10120 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap  = 0kB
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
315639 pages reserved
[ pid ]   uid  tgid total_vm      rss nr_ptes nr_pmds swapents oom_score_adj name
[  190]     0   190     5366      168      15       3        0         -1000 udevd
[ 1492]     0  1492     2493      572       9       3        0             0 dhclient
[ 1633]     0  1633    14312      250      23       3        0             0 rsyslogd
[ 1685]     0  1685     4725       50      15       3        0             0 cron
[ 1706]     0  1706     3735       44      10       3        0             0 mcstransd
[ 1716]     0  1716    12490      152      27       3        0         -1000 sshd
[ 1721]     0  1721    12927     1231      27       3        0             0 restorecond
[ 1764]     0  1764     3649       41      12       3        0             0 getty
[ 1786]     0  1786    17821      213      39       3        0             0 sshd
[ 1788]     0  1788   122970    90081     202       6        0             0 syz-fuzzer
[ 1844]     0  1844    17553      166      22       3        0             0 syz-executor0
[ 1845]     0  1845    17553      167      22       3        0             0 syz-executor5
[ 1846]     0  1846    17553      166      22       3        0             0 syz-executor1
[ 1847]     0  1847    17553      167      22       3        0             0 syz-executor2
[ 1848]     0  1848    17553      168      22       3        0             0 syz-executor3
[ 1849]     0  1849    17553      167      22       3        0             0 syz-executor4
[ 1850]     0  1850    17552     8378      23       4        0             0 syz-executor5
[ 1851]     0  1851    17552     8393      23       4        0             0 syz-executor0
[ 1852]     0  1852    17552     8267      23       4        0             0 syz-executor2
[ 1853]     0  1853    17552     8306      23       4        0             0 syz-executor1
[ 1854]     0  1854    17552     8290      23       4        0             0 syz-executor3
[ 1855]     0  1855    17552     8340      23       4        0             0 syz-executor4
[ 4760]     0  4760    17618     8371      25       4        0          1000 syz-executor3
[ 4761]     0  4761    17618     8368      25       4        0          1000 syz-executor1
[ 5005]     0  5005    17717     8388      25       4        0          1000 syz-executor0
[ 5012]     0  5012    17585     8209      23       3        0          1000 syz-executor4
[ 5073]     0  5073    17585     8220      24       3        0          1000 syz-executor4
[ 5101]     0  5101    17585     8211      23       3        0          1000 syz-executor4
[ 9406]     0  9406    17618    12699      31       3        0          1000 syz-executor5
[ 9455]     0  9455    17618    12699      31       3        0          1000 syz-executor5
[ 9499]     0  9499    17618    12699      31       3        0          1000 syz-executor5
[ 9503]     0  9503    17618    12699      31       3        0          1000 syz-executor4
[ 9551]     0  9551    17618    12699      31       3        0          1000 syz-executor4
[ 9613]     0  9613    17618    12699      31       3        0          1000 syz-executor4
[ 9658]     0  9658    17618    12699      31       3        0          1000 syz-executor4
[ 9690]     0  9690    17618    12699      31       3        0          1000 syz-executor4
[ 9701]     0  9701    17618    12699      31       3        0          1000 syz-executor0
[ 9744]     0  9744    17618    12699      31       3        0          1000 syz-executor4
[ 9773]     0  9773    17618    12699      31       3        0          1000 syz-executor4
[ 9784]     0  9784    17618    12699      31       3        0          1000 syz-executor2
[ 9794]     0  9794    17618    12699      31       3        0          1000 syz-executor4
[ 9812]     0  9812    17618    12699      31       3        0          1000 syz-executor2
[ 9839]     0  9839    17618    12699      31       3        0          1000 syz-executor2
[ 9867]     0  9867    17618    12699      31       3        0          1000 syz-executor2
[ 9915]     0  9915    17585     8211      23       3        0          1000 syz-executor4
[ 9969]     0  9969    17585     8211      23       3        0          1000 syz-executor2
[ 9979]     0  9979    17585     8211      23       3        0          1000 syz-executor4
[10007]     0 10007    17585     8211      23       3        0          1000 syz-executor2
[10019]     0 10019    17585     8211      23       3        0          1000 syz-executor2
[10020]     0 10020    17585     8211      23       3        0          1000 syz-executor4
[10044]     0 10044    17585     8216      23       3        0          1000 syz-executor2
[10058]     0 10058    17585     8216      23       3        0          1000 syz-executor2
[10059]     0 10059    17585     8216      23       3        0          1000 syz-executor4
[10084]     0 10084    17585     8216      23       3        0          1000 syz-executor2
[10099]     0 10099    17585     8216      23       3        0          1000 syz-executor4
[10111]     0 10111    17618    12699      31       3        0          1000 syz-executor2
[10123]     0 10123    17585     8211      23       3        0          1000 syz-executor0
[10140]     0 10140    17618    12699      31       3        0          1000 syz-executor2
[10150]     0 10150    17585     8216      23       3        0          1000 syz-executor4
[10151]     0 10151    17585     8211      23       3        0          1000 syz-executor2
[10212]     0 10212    17618    12699      31       3        0          1000 syz-executor4
[10248]     0 10248    17618    12699      31       3        0          1000 syz-executor4
[10283]     0 10283    17618    12699      31       3        0          1000 syz-executor4
[10320]     0 10320    17618    12699      31       3        0          1000 syz-executor4
[10357]     0 10357    17618    12699      31       3        0          1000 syz-executor4
[10395]     0 10395    17618    12699      31       3        0          1000 syz-executor4
[10423]     0 10423    17618    12699      31       3        0          1000 syz-executor4
[10462]     0 10462    17618    12699      31       3        0          1000 syz-executor4
[10496]     0 10496    17618    12699      31       3        0          1000 syz-executor4
[10536]     0 10536    17618    12699      31       3        0          1000 syz-executor4
[10571]     0 10571    17618    12699      31       3        0          1000 syz-executor4
[10607]     0 10607    17618    12699      31       3        0          1000 syz-executor4
[10870]     0 10870    17585     8217      23       3        0          1000 syz-executor0
[10909]     0 10909    17651    12762      31       3        0          1000 syz-executor0
[10949]     0 10949    17618    12699      31       3        0          1000 syz-executor0
[10962]     0 10962    17651    12762      31       3        0          1000 syz-executor0
[10989]     0 10989    17585     8217      24       3        0          1000 syz-executor0
[11021]     0 11021    17651    12762      31       3        0          1000 syz-executor0
[11049]     0 11049    17618    12699      31       3        0          1000 syz-executor0
[11076]     0 11076    17585     8217      24       3        0          1000 syz-executor3
[11083]     0 11083    17684    12762      31       3        0          1000 syz-executor0
[11096]     0 11096    17618    12699      31       3        0          1000 syz-executor0
[11118]     0 11118    17684    12762      31       3        0          1000 syz-executor0
[11128]     0 11128    17618    12699      31       3        0          1000 syz-executor0
[11136]     0 11136    17684    12764      31       3        0          1000 syz-executor0
[11241]     0 11241    17618    12699      31       3        0          1000 syz-executor0
[11269]     0 11269    17684    12762      31       3        0          1000 syz-executor0
[11308]     0 11308    17618    12699      31       3        0          1000 syz-executor0
[11335]     0 11335    17684    12762      31       3        0          1000 syz-executor0
[11355]     0 11355    17585     8218      23       3        0          1000 syz-executor0
[11413]     0 11413    17684    12762      31       3        0          1000 syz-executor0
[11447]     0 11447    17618    12699      31       3        0          1000 syz-executor0
[11484]     0 11484    17651    12762      31       3        0          1000 syz-executor0
[11500]     0 11500    17618    12699      31       3        0          1000 syz-executor0
[11555]     0 11555    17684    12764      31       3        0          1000 syz-executor0
[11574]     0 11574    17618    12699      31       3        0          1000 syz-executor0
[11605]     0 11605    17684    12761      31       3        0          1000 syz-executor0
[11644]     0 11644    17618    12699      31       3        0          1000 syz-executor0
[11684]     0 11684    17684    12762      31       3        0          1000 syz-executor0
[11709]     0 11709    17618    12699      31       3        0          1000 syz-executor0
[11755]     0 11755    17684    12761      31       3        0          1000 syz-executor0
[11781]     0 11781    17618    12699      31       3        0          1000 syz-executor0
[11825]     0 11825    17684    12764      31       3        0          1000 syz-executor0
[11843]     0 11843    17618    12699      31       3        0          1000 syz-executor0
[11893]     0 11893    17651    12762      31       3        0          1000 syz-executor0
[11915]     0 11915    17618    12699      31       3        0          1000 syz-executor0
[11962]     0 11962    17684    12762      31       3        0          1000 syz-executor0
[12000]     0 12000    17618    12699      31       3        0          1000 syz-executor0
[12030]     0 12030    17651    12762      31       3        0          1000 syz-executor0
[12067]     0 12067    17618    12699      31       3        0          1000 syz-executor0
[12080]     0 12080    17651    12762      31       3        0          1000 syz-executor0
[12113]     0 12113    17618    12699      31       3        0          1000 syz-executor0
[12144]     0 12144    17651    12762      31       3        0          1000 syz-executor0
[12164]     0 12164    17618    12699      31       3        0          1000 syz-executor0
[12176]     0 12176    17618    12699      31       3        0          1000 syz-executor2
[12190]     0 12190    17684    12794      31       3        0          1000 syz-executor0
[12205]     0 12205    17618    12699      31       3        0          1000 syz-executor0
[12211]     0 12211    17651    12731      31       3        0          1000 syz-executor2
[12231]     0 12231    17684    12762      31       3        0          1000 syz-executor0
[12256]     0 12256    17618    12699      31       3        0          1000 syz-executor0
[12281]     0 12281    17651    12762      31       3        0          1000 syz-executor0
[12303]     0 12303    17618    12699      31       3        0          1000 syz-executor0
[12329]     0 12329    17684    12733      31       3        0          1000 syz-executor0
[12353]     0 12353    17618    12699      31       3        0          1000 syz-executor0
[12372]     0 12372    17684    12762      31       3        0          1000 syz-executor0
[12397]     0 12397    17618    12699      31       3        0          1000 syz-executor0
[12418]     0 12418    17684    12764      31       3        0          1000 syz-executor0
[12446]     0 12446    17618    12699      31       3        0          1000 syz-executor0
[12470]     0 12470    17684    12764      31       3        0          1000 syz-executor0
[12491]     0 12491    17618    12699      31       3        0          1000 syz-executor0
[12510]     0 12510    17684    12762      31       3        0          1000 syz-executor0
[12558]     0 12558    17618    12699      31       3        0          1000 syz-executor3
[12565]     0 12565    17618    12699      31       3        0          1000 syz-executor0
[12572]     0 12572    17651    12730      31       3        0          1000 syz-executor0
[12604]     0 12604    17618    12699      31       3        0          1000 syz-executor3
[12615]     0 12615    17618    12699      31       3        0          1000 syz-executor2
[12623]     0 12623    17618    12699      31       3        0          1000 syz-executor0
[12625]     0 12625    17651    12729      31       3        0          1000 syz-executor3
[12659]     0 12659    17684    12762      31       3        0          1000 syz-executor0
[12668]     0 12668    17618    12699      31       3        0          1000 syz-executor3
[12673]     0 12673    17651    12731      31       3        0          1000 syz-executor3
[12693]     0 12693    17618    12699      31       3        0          1000 syz-executor3
[12698]     0 12698    17618    12699      31       3        0          1000 syz-executor0
[12722]     0 12722    17585     8217      23       3        0          1000 syz-executor3
[12731]     0 12731    17618    12730      31       3        0          1000 syz-executor3
[12755]     0 12755    17618    12699      31       3        0          1000 syz-executor0
[12797]     0 12797    17618    12699      31       3        0          1000 syz-executor3
[12798]     0 12798    17618    12729      31       3        0          1000 syz-executor3
[12801]     0 12801    17717    12793      31       3        0          1000 syz-executor0
[12846]     0 12846    17618    12699      31       3        0          1000 syz-executor0
[12853]     0 12853    17618    12699      31       3        0          1000 syz-executor3
[12858]     0 12858    17651    12762      31       3        0          1000 syz-executor0
[12898]     0 12898    17618    12699      31       3        0          1000 syz-executor0
[12901]     0 12901    17618    12699      31       3        0          1000 syz-executor3
[12916]     0 12916    17618    12729      31       3        0          1000 syz-executor3
[12921]     0 12921    17651    12762      31       3        0          1000 syz-executor0
[12966]     0 12966    17618    12699      31       3        0          1000 syz-executor0
[12987]     0 12987    17618    12699      31       3        0          1000 syz-executor3
[12989]     0 12989    17684    12762      31       3        0          1000 syz-executor0
[13049]     0 13049    17618    12699      31       3        0          1000 syz-executor0
[13056]     0 13056    17618    12699      31       3        0          1000 syz-executor3
[13072]     0 13072    17651    12762      31       3        0          1000 syz-executor0
[13103]     0 13103    17618    12699      31       3        0          1000 syz-executor0
[13105]     0 13105    17618    12699      31       3        0          1000 syz-executor3
[13127]     0 13127    17618    12729      31       3        0          1000 syz-executor3
[13132]     0 13132    17684    12764      31       3        0          1000 syz-executor0
[13148]     0 13148    17585     8211      23       3        0          1000 syz-executor0
[13174]     0 13174    17618    12699      31       3        0          1000 syz-executor3
[13188]     0 13188    17618    12729      31       3        0          1000 syz-executor3
[13190]     0 13190    17651    12762      31       3        0          1000 syz-executor0
[13216]     0 13216    17618    12699      31       3        0          1000 syz-executor0
[13218]     0 13218    17618    12699      31       3        0          1000 syz-executor3
[13222]     0 13222    17651    12730      31       3        0          1000 syz-executor3
[13228]     0 13228    17618    12699      31       3        0          1000 syz-executor3
[13229]     0 13229    17618    12729      31       3        0          1000 syz-executor3
[13234]     0 13234    17585     8218      23       3        0          1000 syz-executor3
[13241]     0 13241    17585     8218      23       3        0          1000 syz-executor3
[13243]     0 13243    17618    12699      31       3        0          1000 syz-executor3
[13249]     0 13249    17651    12762      31       3        0          1000 syz-executor0
[13264]     0 13264    17618    12699      31       3        0          1000 syz-executor3
[13267]     0 13267    17651    12730      31       3        0          1000 syz-executor3
[13289]     0 13289    17618     8222      24       3        0          1000 syz-executor3
[13290]     0 13290    17618     8222      24       3        0          1000 syz-executor3
[13313]     0 13313    17618    12699      31       3        0          1000 syz-executor0
[13334]     0 13334    17618    12729      31       3        0          1000 syz-executor3
[13340]     0 13340    17651    12761      31       3        0          1000 syz-executor3
[13341]     0 13341    17684    12764      31       3        0          1000 syz-executor0
[13380]     0 13380    17618    12699      31       3        0          1000 syz-executor3
[13393]     0 13393    17618    12729      31       3        0          1000 syz-executor3
[13443]     0 13443    17618    12699      31       3        0          1000 syz-executor3
[13447]     0 13447    17618    12699      31       3        0          1000 syz-executor0
[13456]     0 13456    17684    12762      31       3        0          1000 syz-executor0
[13458]     0 13458    17684    12733      31       3        0          1000 syz-executor3
[13494]     0 13494    17618    12699      31       3        0          1000 syz-executor0
[13501]     0 13501    17618    12699      31       3        0          1000 syz-executor3
[13515]     0 13515    17651    12762      31       3        0          1000 syz-executor0
[13528]     0 13528    17618    12730      31       3        0          1000 syz-executor3
[13533]     0 13533    17651    12763      31       3        0          1000 syz-executor3
[13550]     0 13550    17585     8219      23       3        0          1000 syz-executor0
[13567]     0 13567    17618    12699      31       3        0          1000 syz-executor3
[13570]     0 13570    17651    12731      31       3        0          1000 syz-executor3
[13580]     0 13580    17618    12699      31       3        0          1000 syz-executor3
[13581]     0 13581    17651    12730      31       3        0          1000 syz-executor3
[13587]     0 13587    17618    12699      31       3        0          1000 syz-executor3
[13588]     0 13588    17651    12763      31       3        0          1000 syz-executor0
[13596]     0 13596    17651    12729      31       3        0          1000 syz-executor3

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2018/12/10 21:56 android-4.14 977dd3f743b7 6565f24d .config console log report ci-android-414-kasan-gce-root
* Struck through repros no longer work on HEAD.