to free 36008kB on behalf of 'kswapd0' (33) because cache 59620kB is below limit 65536kB for oom_score_adj 12 Free memory is -12800kB above reserved ================================= [ INFO: inconsistent lock state ] 4.9.194+ #0 Not tainted --------------------------------- inconsistent {RECLAIM_FS-ON-W} -> {IN-RECLAIM_FS-R} usage. kswapd0/33 [HC0[0]:SC0[0]:HE1:SE1] takes: (&mm->mmap_sem){+++++?}, at: [<00000000351be1d4>] get_cmdline+0xa3/0x2d0 mm/util.c:641 mark_held_locks+0xb1/0x100 kernel/locking/lockdep.c:2660 __lockdep_trace_alloc kernel/locking/lockdep.c:2882 [inline] lockdep_trace_alloc+0x18c/0x2b0 kernel/locking/lockdep.c:2897 __alloc_pages_nodemask+0x143/0x1a80 mm/page_alloc.c:3803 __alloc_pages include/linux/gfp.h:433 [inline] __alloc_pages_node include/linux/gfp.h:446 [inline] alloc_pages_node include/linux/gfp.h:460 [inline] pmd_alloc_one arch/x86/include/asm/pgalloc.h:88 [inline] __pmd_alloc+0x4a/0x330 mm/memory.c:3742 pmd_alloc include/linux/mm.h:1625 [inline] alloc_new_pmd mm/mremap.c:64 [inline] move_page_tables+0xadb/0xd60 mm/mremap.c:212 shift_arg_pages+0x1ae/0x470 fs/exec.c:642 setup_arg_pages+0x60d/0x7c0 fs/exec.c:754 load_elf_binary+0xa84/0x4a90 fs/binfmt_elf.c:860 search_binary_handler fs/exec.c:1621 [inline] search_binary_handler+0x14f/0x700 fs/exec.c:1599 exec_binprm fs/exec.c:1663 [inline] do_execveat_common.isra.0+0xf81/0x1db0 fs/exec.c:1785 do_execve+0x3a/0x50 fs/exec.c:1829 run_init_process+0x33/0x37 init/main.c:904 try_to_run_init_process+0x18/0x48 init/main.c:913 kernel_init+0xf2/0x163 init/main.c:984 ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:375 irq event stamp: 6703 hardirqs last enabled at (6703): [<00000000ad40c118>] vprintk_emit+0x25c/0x6f0 kernel/printk/printk.c:1897 hardirqs last disabled at (6702): [<000000006153aa8a>] vprintk_emit+0x6d/0x6f0 kernel/printk/printk.c:1801 softirqs last enabled at (0): [<00000000a074431d>] copy_process.part.0+0x118f/0x6690 kernel/fork.c:1747 softirqs last disabled at (0): [< (null)>] (null) other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&mm->mmap_sem); lock(&mm->mmap_sem); *** DEADLOCK *** 1 lock held by kswapd0/33: #0: (shrinker_rwsem){++++..}, at: [<000000005ed45465>] shrink_slab.part.0+0xb2/0xa20 mm/vmscan.c:472 stack backtrace: CPU: 1 PID: 33 Comm: kswapd0 Not tainted 4.9.194+ #0 ffff8801d840f420 ffffffff81b67001 00000000000000f0 ffff8801d992c740 ffffffff83cb0990 ffff8801d992d038 ffffffff84252000 ffff8801d840f498 ffffffff81408710 0000000000000000 ffffffff00000001 0000000000000001 Call Trace: [<000000001a382594>] __dump_stack lib/dump_stack.c:15 [inline] [<000000001a382594>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<0000000067662114>] print_usage_bug kernel/locking/lockdep.c:2387 [inline] [<0000000067662114>] print_usage_bug.cold+0x452/0x5a2 kernel/locking/lockdep.c:2354 [<00000000db6f56a7>] valid_state kernel/locking/lockdep.c:2400 [inline] [<00000000db6f56a7>] mark_lock_irq kernel/locking/lockdep.c:2602 [inline] [<00000000db6f56a7>] mark_lock+0x6c7/0x12e0 kernel/locking/lockdep.c:3065 [<00000000389e9abe>] mark_irqflags kernel/locking/lockdep.c:2958 [inline] [<00000000389e9abe>] __lock_acquire+0x5be/0x4390 kernel/locking/lockdep.c:3302 [<0000000018805122>] lock_acquire+0x133/0x3d0 kernel/locking/lockdep.c:3756 [<00000000448a4115>] down_read+0x44/0xb0 kernel/locking/rwsem.c:22 [<00000000351be1d4>] get_cmdline+0xa3/0x2d0 mm/util.c:641 [<000000008fabfa9e>] handle_lmk_event+0x169/0x920 drivers/staging/android/lowmemorykiller.c:116 [<00000000c578a644>] lowmem_scan+0x6f3/0xb70 drivers/staging/android/lowmemorykiller.c:354 [<00000000438e4dea>] do_shrink_slab mm/vmscan.c:399 [inline] [<00000000438e4dea>] shrink_slab.part.0+0x3cf/0xa20 mm/vmscan.c:502 [<0000000090d5caf6>] shrink_slab mm/vmscan.c:466 [inline] [<0000000090d5caf6>] shrink_node+0x1ed/0x750 mm/vmscan.c:2604 [<00000000e47e4b35>] kswapd_shrink_node mm/vmscan.c:3209 [inline] [<00000000e47e4b35>] balance_pgdat mm/vmscan.c:3329 [inline] [<00000000e47e4b35>] kswapd+0x7f8/0x13b0 mm/vmscan.c:3523 [<0000000097c6645a>] kthread+0x278/0x310 kernel/kthread.c:211 [<00000000acb3bbee>] ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:375 lowmemorykiller: Killing 'syz-executor.2' (9305) (tgid 9297), adj 1000, to free 36008kB on behalf of 'syz-executor.2' (9312) because cache 58620kB is below limit 65536kB for oom_score_adj 12 Free memory is -13324kB above reserved oom_reaper: reaped process 9312 (syz-executor.2), now anon-rss:0kB, file-rss:20kB, shmem-rss:0kB syz-executor.2: vmalloc: allocation failure, allocated 3099889664 of 4294975488 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) CPU: 0 PID: 9312 Comm: syz-executor.2 Not tainted 4.9.194+ #0 ffff8801a5a97a08 ffffffff81b67001 1ffff10034b52f43 dffffc0000000000 ffffffff82aab480 0000000000000000 0000000000400000 ffff8801a5a97b30 ffffffff815080fc 0000000041b58ab3 ffffffff82e3bc80 ffffffff81431d00 Call Trace: [<000000001a382594>] __dump_stack lib/dump_stack.c:15 [inline] [<000000001a382594>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000cced580d>] warn_alloc.cold+0x76/0x93 mm/page_alloc.c:3069 [<000000003638189a>] __vmalloc_area_node mm/vmalloc.c:1665 [inline] [<000000003638189a>] __vmalloc_node_range+0x404/0x610 mm/vmalloc.c:1706 [<000000006056c444>] __vmalloc_node mm/vmalloc.c:1755 [inline] [<000000006056c444>] __vmalloc_node_flags mm/vmalloc.c:1769 [inline] [<000000006056c444>] vmalloc+0x5c/0x70 mm/vmalloc.c:1784 [<0000000059ddeb4b>] xt_alloc_table_info+0xc8/0x100 net/netfilter/x_tables.c:997 [<00000000a8e47ac0>] do_replace net/ipv6/netfilter/ip6_tables.c:1175 [inline] [<00000000a8e47ac0>] do_ip6t_set_ctl+0x231/0x480 net/ipv6/netfilter/ip6_tables.c:1712 [<00000000c033b4ba>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [<00000000c033b4ba>] nf_setsockopt+0x6d/0xc0 net/netfilter/nf_sockopt.c:114 [<00000000c4a584be>] ipv6_setsockopt net/ipv6/ipv6_sockglue.c:922 [inline] [<00000000c4a584be>] ipv6_setsockopt+0x10b/0x140 net/ipv6/ipv6_sockglue.c:906 [<00000000ff169fd2>] tcp_setsockopt net/ipv4/tcp.c:2759 [inline] [<00000000ff169fd2>] tcp_setsockopt+0x8a/0xe0 net/ipv4/tcp.c:2753 [<000000004be9119f>] sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2710 [<00000000a627cdd8>] SYSC_setsockopt net/socket.c:1786 [inline] [<00000000a627cdd8>] SyS_setsockopt+0x159/0x240 net/socket.c:1765 [<0000000015699bc8>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000eca1a969>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:66615 inactive_anon:313 isolated_anon:0 active_file:27 inactive_file:35 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:4999 slab_unreclaimable:59862 mapped:43543 shmem:336 pagetables:1228 bounce:0 free:25 free_pcp:34 free_cma:0 Node 0 active_anon:266460kB inactive_anon:1252kB active_file:108kB inactive_file:140kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:174172kB dirty:0kB writeback:0kB shmem:1344kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:24kB min:4696kB low:7712kB high:10728kB active_anon:448kB inactive_anon:8kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020092kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:324kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:76kB min:5580kB low:9168kB high:12756kB active_anon:266012kB inactive_anon:1244kB active_file:108kB inactive_file:140kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:19996kB slab_unreclaimable:239124kB kernel_stack:4800kB pagetables:4912kB bounce:0kB free_pcp:136kB local_pcp:0kB free_cma:0kB DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB 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 313627 pages reserved syz-executor.2 invoked oom-killer: gfp_mask=0x24200ca(GFP_HIGHUSER_MOVABLE), nodemask=0, order=0, oom_score_adj=0 CPU: 0 PID: 6387 Comm: syz-executor.2 Not tainted 4.9.194+ #0 ffff8801a8daf6f0 ffffffff81b67001 ffff8801a8dafa48 ffffffff833f1c30 0000000000000000 ffff8801a8dafa60 0000000000000000 ffff8801a8daf770 ffffffff81506e44 0000000000000000 0000000000000000 ffffffff8282ac45 Call Trace: [<000000001a382594>] __dump_stack lib/dump_stack.c:15 [inline] [<000000001a382594>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000006ef29ecb>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<00000000b15de231>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<00000000c81ba17c>] out_of_memory mm/oom_kill.c:1069 [inline] [<00000000c81ba17c>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<0000000068c3b143>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<0000000068c3b143>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<0000000068c3b143>] __alloc_pages_nodemask+0x1730/0x1a80 mm/page_alloc.c:3861 [<0000000049d1311e>] __alloc_pages include/linux/gfp.h:433 [inline] [<0000000049d1311e>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<0000000049d1311e>] alloc_pages_node include/linux/gfp.h:460 [inline] [<0000000049d1311e>] __page_cache_alloc include/linux/pagemap.h:208 [inline] [<0000000049d1311e>] pagecache_get_page+0x248/0x740 mm/filemap.c:1367 [<00000000578ff282>] filemap_fault+0xb1f/0x1360 mm/filemap.c:2331 [<00000000a5affabc>] ext4_filemap_fault+0x72/0xa0 fs/ext4/inode.c:5854 [<000000007b19dcc9>] __do_fault+0x2a8/0x6c0 mm/memory.c:2855 [<00000000557ba7e2>] do_read_fault mm/memory.c:3202 [inline] [<00000000557ba7e2>] do_fault mm/memory.c:3338 [inline] [<00000000557ba7e2>] handle_pte_fault mm/memory.c:3547 [inline] [<00000000557ba7e2>] __handle_mm_fault mm/memory.c:3634 [inline] [<00000000557ba7e2>] handle_mm_fault+0x11bc/0x2420 mm/memory.c:3671 [<00000000932ba739>] __do_page_fault+0x3f0/0xa60 arch/x86/mm/fault.c:1401 [<000000001bebc0c7>] do_page_fault+0x28/0x30 arch/x86/mm/fault.c:1464 [<00000000fdece33c>] page_fault+0x25/0x30 arch/x86/entry/entry_64.S:956 Mem-Info: active_anon:66615 inactive_anon:313 isolated_anon:0 active_file:27 inactive_file:35 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:4999 slab_unreclaimable:59862 mapped:43543 shmem:336 pagetables:1228 bounce:0 free:25 free_pcp:34 free_cma:0 Node 0 active_anon:266460kB inactive_anon:1252kB active_file:108kB inactive_file:140kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:174172kB dirty:0kB writeback:0kB shmem:1344kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:24kB min:4696kB low:7712kB high:10728kB active_anon:448kB inactive_anon:8kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020092kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:324kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:76kB min:5580kB low:9168kB high:12756kB active_anon:266012kB inactive_anon:1244kB active_file:108kB inactive_file:140kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:19996kB slab_unreclaimable:239124kB kernel_stack:4800kB pagetables:4912kB bounce:0kB free_pcp:136kB local_pcp:0kB free_cma:0kB DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB 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 313627 pages reserved [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 470] 0 470 5365 169 16 3 0 -1000 udevd [ 1757] 0 1757 2492 573 8 3 0 0 dhclient [ 1890] 0 1890 30582 109 24 3 0 0 rsyslogd [ 1944] 0 1944 4724 50 14 3 0 0 cron [ 1963] 0 1963 12926 1231 28 3 0 0 restorecond [ 1981] 0 1981 3735 45 11 3 0 0 mcstransd [ 1991] 0 1991 12489 153 27 3 0 -1000 sshd [ 2021] 0 2021 3648 40 12 3 0 0 getty [ 2031] 0 2031 17820 197 37 3 0 0 sshd [ 2033] 0 2033 124380 62211 206 5 0 0 syz-fuzzer [ 2094] 0 2094 18114 15 23 3 0 0 syz-executor.1 [ 2114] 0 2114 18113 8734 24 4 0 0 syz-executor.1 [ 3429] 0 3429 18144 8715 25 3 0 1000 syz-executor.1 [ 3432] 0 3432 18177 8717 25 3 0 1000 syz-executor.1 [ 5376] 0 5376 18212 8750 26 4 0 1000 syz-executor.1 [ 6309] 0 6309 18146 8716 25 3 0 1000 syz-executor.1 [ 6330] 0 6330 18245 8726 27 3 0 1000 syz-executor.1 [ 6386] 0 6386 18114 17 23 3 0 0 syz-executor.2 [ 6387] 0 6387 18113 8709 24 4 0 0 syz-executor.2 [ 6578] 0 6578 18179 8748 26 4 0 1000 syz-executor.1 [ 7311] 0 7311 18179 8748 26 4 0 1000 syz-executor.1 [ 7331] 0 7331 18114 15 23 4 0 0 syz-executor.5 [ 7332] 0 7332 18113 8731 24 5 0 0 syz-executor.5 [ 7970] 0 7970 18179 8748 26 4 0 1000 syz-executor.1 [ 8007] 0 8007 18179 8748 26 4 0 1000 syz-executor.1 [ 8184] 0 8184 18114 16 23 3 0 0 syz-executor.3 [ 8185] 0 8185 18113 8732 24 4 0 0 syz-executor.3 [ 8464] 0 8464 5529 314 15 3 0 -1000 udevd [ 8468] 0 8468 5529 314 15 3 0 -1000 udevd [ 8640] 0 8640 18311 8756 26 4 0 1000 syz-executor.2 [ 8665] 0 8665 18146 8743 26 4 0 1000 syz-executor.3 [ 9020] 0 9020 18146 8713 25 3 0 1000 syz-executor.2 [ 9043] 0 9043 18276 8722 25 3 0 1000 syz-executor.2 [ 9045] 0 9045 5364 170 15 3 0 -1000 udevd [ 9092] 0 9092 5364 170 15 3 0 -1000 udevd [ 9097] 0 9097 18179 8748 26 4 0 1000 syz-executor.2 [ 9106] 0 9106 18212 8748 26 5 0 1000 syz-executor.5 [ 9113] 0 9113 18114 16 23 3 0 0 syz-executor.0 [ 9114] 0 9114 18113 8730 24 4 0 0 syz-executor.0 [ 9266] 0 9266 18147 8709 25 3 0 1000 syz-executor.0 [ 9269] 0 9269 18213 8714 25 3 0 1000 syz-executor.0 [ 9305] 0 9297 18278 5 26 4 0 1000 syz-executor.2 [ 9310] 0 9310 18212 8749 26 4 0 1000 syz-executor.3 [ 9379] 0 9379 18146 8711 25 4 0 1000 syz-executor.5 [ 9383] 0 9383 18212 8718 26 4 0 1000 syz-executor.5 Out of memory: Kill process 8640 (syz-executor.2) score 1004 or sacrifice child Killed process 8640 (syz-executor.2) total-vm:73244kB, anon-rss:204kB, file-rss:34820kB, shmem-rss:0kB syz-executor.2 invoked oom-killer: gfp_mask=0x2400840(GFP_NOFS|__GFP_NOFAIL), nodemask=0, order=0, oom_score_adj=1000 CPU: 1 PID: 8640 Comm: syz-executor.2 Not tainted 4.9.194+ #0 ffff8801c8ea6e78 ffffffff81b67001 ffff8801c8ea71d0 ffffffff833f1c30 00000000000003e8 ffff8801c8ea71e8 0000000000000000 ffff8801c8ea6ef8 ffffffff81506e44 0000000000000000 00000000000003e8 ffffffff8282ac45 Call Trace: [<000000001a382594>] __dump_stack lib/dump_stack.c:15 [inline] [<000000001a382594>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000006ef29ecb>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<00000000b15de231>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<00000000c81ba17c>] out_of_memory mm/oom_kill.c:1069 [inline] [<00000000c81ba17c>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<00000000872bc44a>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<00000000872bc44a>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<00000000872bc44a>] __alloc_pages_nodemask+0x151e/0x1a80 mm/page_alloc.c:3861 [<0000000049d1311e>] __alloc_pages include/linux/gfp.h:433 [inline] [<0000000049d1311e>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<0000000049d1311e>] alloc_pages_node include/linux/gfp.h:460 [inline] [<0000000049d1311e>] __page_cache_alloc include/linux/pagemap.h:208 [inline] [<0000000049d1311e>] pagecache_get_page+0x248/0x740 mm/filemap.c:1367 [<00000000d66dad10>] find_or_create_page include/linux/pagemap.h:310 [inline] [<00000000d66dad10>] ext4_mb_load_buddy_gfp+0x90a/0x1100 fs/ext4/mballoc.c:1172 [<000000006bec11b0>] ext4_free_blocks+0x827/0x23d0 fs/ext4/mballoc.c:4834 [<0000000004e954a1>] ext4_remove_blocks fs/ext4/extents.c:2585 [inline] [<0000000004e954a1>] ext4_ext_rm_leaf fs/ext4/extents.c:2741 [inline] [<0000000004e954a1>] ext4_ext_remove_space+0x21cd/0x3a90 fs/ext4/extents.c:2974 [<0000000073a51f2e>] ext4_ext_truncate+0x17e/0x280 fs/ext4/extents.c:4677 [<00000000f1159591>] ext4_truncate+0x526/0x1300 fs/ext4/inode.c:4243 [<00000000a4bde13f>] ext4_evict_inode+0xc50/0x1270 fs/ext4/inode.c:265 [<00000000dafc796a>] evict+0x2e9/0x630 fs/inode.c:553 [<00000000f319685d>] iput_final fs/inode.c:1516 [inline] [<00000000f319685d>] iput fs/inode.c:1543 [inline] [<00000000f319685d>] iput+0x370/0x900 fs/inode.c:1528 [<000000005bbeccdc>] dentry_unlink_inode+0x277/0x330 fs/dcache.c:369 [<0000000001f766bb>] __dentry_kill+0x333/0x580 fs/dcache.c:571 [<00000000a51773f3>] dentry_kill fs/dcache.c:612 [inline] [<00000000a51773f3>] dput.part.0+0x509/0x7c0 fs/dcache.c:829 [<00000000f51797d4>] dput+0x20/0x30 fs/dcache.c:791 [<00000000aca7b73a>] path_put+0x31/0x70 fs/namei.c:519 [<0000000060dd294b>] free_fs_struct+0x25/0x70 fs/fs_struct.c:90 [<0000000038376a77>] exit_fs+0xe7/0x120 fs/fs_struct.c:108 [<00000000941136a1>] do_exit+0x769/0x2aa0 kernel/exit.c:838 [<00000000cb30f46e>] do_group_exit+0x111/0x300 kernel/exit.c:946 [<0000000019747576>] get_signal+0x377/0x1cb0 kernel/signal.c:2395 [<00000000cc470fbf>] do_signal+0x9c/0x1920 arch/x86/kernel/signal.c:812 [<000000003cb691bf>] exit_to_usermode_loop+0x11c/0x160 arch/x86/entry/common.c:159 [<000000007238aaef>] prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] [<000000007238aaef>] syscall_return_slowpath arch/x86/entry/common.c:266 [inline] [<000000007238aaef>] do_syscall_64+0x3ab/0x5c0 arch/x86/entry/common.c:293 [<00000000eca1a969>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:66590 inactive_anon:313 isolated_anon:0 active_file:27 inactive_file:35 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:4999 slab_unreclaimable:59862 mapped:43543 shmem:336 pagetables:1191 bounce:0 free:25 free_pcp:107 free_cma:0 Node 0 active_anon:266360kB inactive_anon:1252kB active_file:108kB inactive_file:140kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:174172kB dirty:0kB writeback:0kB shmem:1344kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:24kB min:4696kB low:7712kB high:10728kB active_anon:448kB inactive_anon:8kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020092kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:324kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:76kB min:5580kB low:9168kB high:12756kB active_anon:265912kB inactive_anon:1244kB active_file:108kB inactive_file:140kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:19996kB slab_unreclaimable:239124kB kernel_stack:4800kB pagetables:4764kB bounce:0kB free_pcp:428kB local_pcp:428kB free_cma:0kB DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB 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 313627 pages reserved [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 470] 0 470 5365 169 16 3 0 -1000 udevd [ 1757] 0 1757 2492 573 8 3 0 0 dhclient [ 1890] 0 1890 30582 109 24 3 0 0 rsyslogd [ 1944] 0 1944 4724 50 14 3 0 0 cron [ 1963] 0 1963 12926 1231 28 3 0 0 restorecond [ 1981] 0 1981 3735 45 11 3 0 0 mcstransd [ 1991] 0 1991 12489 153 27 3 0 -1000 sshd [ 2021] 0 2021 3648 40 12 3 0 0 getty [ 2031] 0 2031 17820 197 37 3 0 0 sshd [ 2033] 0 2033 124380 62211 206 5 0 0 syz-fuzzer [ 2094] 0 2094 18114 15 23 3 0 0 syz-executor.1 [ 2114] 0 2114 18113 8734 24 4 0 0 syz-executor.1 [ 3429] 0 3429 18144 8715 25 3 0 1000 syz-executor.1 [ 3432] 0 3432 18177 8717 25 3 0 1000 syz-executor.1 [ 5376] 0 5376 18212 8750 26 4 0 1000 syz-executor.1 [ 6309] 0 6309 18146 8716 25 3 0 1000 syz-executor.1 [ 6330] 0 6330 18245 8726 27 3 0 1000 syz-executor.1 [ 6386] 0 6386 18114 17 23 3 0 0 syz-executor.2 [ 6387] 0 6387 18113 8709 24 4 0 0 syz-executor.2 [ 6578] 0 6578 18179 8748 26 4 0 1000 syz-executor.1 [ 7311] 0 7311 18179 8748 26 4 0 1000 syz-executor.1 [ 7331] 0 7331 18114 15 23 4 0 0 syz-executor.5 [ 7332] 0 7332 18113 8731 24 5 0 0 syz-executor.5 [ 7970] 0 7970 18179 8748 26 4 0 1000 syz-executor.1 [ 8007] 0 8007 18179 8748 26 4 0 1000 syz-executor.1 [ 8184] 0 8184 18114 16 23 3 0 0 syz-executor.3 [ 8185] 0 8185 18113 8732 24 4 0 0 syz-executor.3 [ 8464] 0 8464 5529 314 15 3 0 -1000 udevd [ 8468] 0 8468 5529 314 15 3 0 -1000 udevd [ 8665] 0 8665 18146 8743 26 4 0 1000 syz-executor.3 [ 9020] 0 9020 18146 8713 25 3 0 1000 syz-executor.2 [ 9043] 0 9043 18276 8722 25 3 0 1000 syz-executor.2 [ 9045] 0 9045 5364 170 15 3 0 -1000 udevd [ 9092] 0 9092 5364 170 15 3 0 -1000 udevd [ 9097] 0 9097 18179 8748 26 4 0 1000 syz-executor.2 [ 9106] 0 9106 18212 8748 26 5 0 1000 syz-executor.5 [ 9113] 0 9113 18114 16 23 3 0 0 syz-executor.0 [ 9114] 0 9114 18113 8730 24 4 0 0 syz-executor.0 [ 9266] 0 9266 18147 8709 25 3 0 1000 syz-executor.0 [ 9269] 0 9269 18213 8714 25 3 0 1000 syz-executor.0 [ 9305] 0 9297 18278 5 26 4 0 1000 syz-executor.2 [ 9310] 0 9310 18212 8749 26 4 0 1000 syz-executor.3 [ 9379] 0 9379 18146 8711 25 4 0 1000 syz-executor.5 [ 9383] 0 9383 18212 8718 26 4 0 1000 syz-executor.5 Out of memory: Kill process 5376 (syz-executor.1) score 1004 or sacrifice child Killed process 5376 (syz-executor.1) total-vm:72848kB, anon-rss:180kB, file-rss:34820kB, shmem-rss:0kB syz-executor.1 invoked oom-killer: gfp_mask=0x2400840(GFP_NOFS|__GFP_NOFAIL), nodemask=0, order=0, oom_score_adj=1000 CPU: 1 PID: 5376 Comm: syz-executor.1 Not tainted 4.9.194+ #0 ffff8801d27c6e78 ffffffff81b67001 ffff8801d27c71d0 ffffffff833f1c30 00000000000003e8 ffff8801d27c71e8 0000000000000000 ffff8801d27c6ef8 ffffffff81506e44 0000000000000000 00000000000003e8 ffffffff8282ac45 Call Trace: [<000000001a382594>] __dump_stack lib/dump_stack.c:15 [inline] [<000000001a382594>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000006ef29ecb>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<00000000b15de231>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<00000000c81ba17c>] out_of_memory mm/oom_kill.c:1069 [inline] [<00000000c81ba17c>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<00000000872bc44a>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<00000000872bc44a>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<00000000872bc44a>] __alloc_pages_nodemask+0x151e/0x1a80 mm/page_alloc.c:3861 [<0000000049d1311e>] __alloc_pages include/linux/gfp.h:433 [inline] [<0000000049d1311e>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<0000000049d1311e>] alloc_pages_node include/linux/gfp.h:460 [inline] [<0000000049d1311e>] __page_cache_alloc include/linux/pagemap.h:208 [inline] [<0000000049d1311e>] pagecache_get_page+0x248/0x740 mm/filemap.c:1367 [<00000000d66dad10>] find_or_create_page include/linux/pagemap.h:310 [inline] [<00000000d66dad10>] ext4_mb_load_buddy_gfp+0x90a/0x1100 fs/ext4/mballoc.c:1172 [<000000006bec11b0>] ext4_free_blocks+0x827/0x23d0 fs/ext4/mballoc.c:4834 [<0000000004e954a1>] ext4_remove_blocks fs/ext4/extents.c:2585 [inline] [<0000000004e954a1>] ext4_ext_rm_leaf fs/ext4/extents.c:2741 [inline] [<0000000004e954a1>] ext4_ext_remove_space+0x21cd/0x3a90 fs/ext4/extents.c:2974 [<0000000073a51f2e>] ext4_ext_truncate+0x17e/0x280 fs/ext4/extents.c:4677 [<00000000f1159591>] ext4_truncate+0x526/0x1300 fs/ext4/inode.c:4243 [<00000000a4bde13f>] ext4_evict_inode+0xc50/0x1270 fs/ext4/inode.c:265 [<00000000dafc796a>] evict+0x2e9/0x630 fs/inode.c:553 [<00000000f319685d>] iput_final fs/inode.c:1516 [inline] [<00000000f319685d>] iput fs/inode.c:1543 [inline] [<00000000f319685d>] iput+0x370/0x900 fs/inode.c:1528 [<000000005bbeccdc>] dentry_unlink_inode+0x277/0x330 fs/dcache.c:369 [<0000000001f766bb>] __dentry_kill+0x333/0x580 fs/dcache.c:571 [<00000000a51773f3>] dentry_kill fs/dcache.c:612 [inline] [<00000000a51773f3>] dput.part.0+0x509/0x7c0 fs/dcache.c:829 [<00000000f51797d4>] dput+0x20/0x30 fs/dcache.c:791 [<00000000aca7b73a>] path_put+0x31/0x70 fs/namei.c:519 [<0000000060dd294b>] free_fs_struct+0x25/0x70 fs/fs_struct.c:90 [<0000000038376a77>] exit_fs+0xe7/0x120 fs/fs_struct.c:108 [<00000000941136a1>] do_exit+0x769/0x2aa0 kernel/exit.c:838 [<00000000cb30f46e>] do_group_exit+0x111/0x300 kernel/exit.c:946 [<0000000019747576>] get_signal+0x377/0x1cb0 kernel/signal.c:2395 [<00000000cc470fbf>] do_signal+0x9c/0x1920 arch/x86/kernel/signal.c:812 [<000000003cb691bf>] exit_to_usermode_loop+0x11c/0x160 arch/x86/entry/common.c:159 [<000000007238aaef>] prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] [<000000007238aaef>] syscall_return_slowpath arch/x86/entry/common.c:266 [inline] [<000000007238aaef>] do_syscall_64+0x3ab/0x5c0 arch/x86/entry/common.c:293 [<00000000eca1a969>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:66540 inactive_anon:313 isolated_anon:0 active_file:27 inactive_file:35 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:4999 slab_unreclaimable:59862 mapped:43543 shmem:336 pagetables:1191 bounce:0 free:25 free_pcp:173 free_cma:0 Node 0 active_anon:266160kB inactive_anon:1252kB active_file:108kB inactive_file:140kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:174172kB dirty:0kB writeback:0kB shmem:1344kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:24kB min:4696kB low:7712kB high:10728kB active_anon:448kB inactive_anon:8kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020092kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:324kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:76kB min:5580kB low:9168kB high:12756kB active_anon:265712kB inactive_anon:1244kB active_file:108kB inactive_file:140kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:19996kB slab_unreclaimable:239124kB kernel_stack:4800kB pagetables:4764kB bounce:0kB free_pcp:692kB local_pcp:692kB free_cma:0kB DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB 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 313627 pages reserved [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 470] 0 470 5365 169 16 3 0 -1000 udevd [ 1757] 0 1757 2492 573 8 3 0 0 dhclient [ 1890] 0 1890 30582 109 24 3 0 0 rsyslogd [ 1944] 0 1944 4724 50 14 3 0 0 cron [ 1963] 0 1963 12926 1231 28 3 0 0 restorecond [ 1981] 0 1981 3735 45 11 3 0 0 mcstransd [ 1991] 0 1991 12489 153 27 3 0 -1000 sshd [ 2021] 0 2021 3648 40 12 3 0 0 getty [ 2031] 0 2031 17820 197 37 3 0 0 sshd [ 2033] 0 2033 124380 62211 206 5 0 0 syz-fuzzer [ 2094] 0 2094 18114 15 23 3 0 0 syz-executor.1 [ 2114] 0 2114 18113 8734 24 4 0 0 syz-executor.1 [ 3429] 0 3429 18144 8715 25 3 0 1000 syz-executor.1 [ 3432] 0 3432 18177 8717 25 3 0 1000 syz-executor.1 [ 6309] 0 6309 18146 8716 25 3 0 1000 syz-executor.1 [ 6330] 0 6330 18245 8726 27 3 0 1000 syz-executor.1 [ 6386] 0 6386 18114 17 23 3 0 0 syz-executor.2 [ 6387] 0 6387 18113 8709 24 4 0 0 syz-executor.2 [ 6578] 0 6578 18179 8748 26 4 0 1000 syz-executor.1 [ 7311] 0 7311 18179 8748 26 4 0 1000 syz-executor.1 [ 7331] 0 7331 18114 15 23 4 0 0 syz-executor.5 [ 7332] 0 7332 18113 8731 24 5 0 0 syz-executor.5 [ 7970] 0 7970 18179 8748 26 4 0 1000 syz-executor.1 [ 8007] 0 8007 18179 8748 26 4 0 1000 syz-executor.1 [ 8184] 0 8184 18114 16 23 3 0 0 syz-executor.3 [ 8185] 0 8185 18113 8732 24 4 0 0 syz-executor.3 [ 8464] 0 8464 5529 314 15 3 0 -1000 udevd [ 8468] 0 8468 5529 314 15 3 0 -1000 udevd [ 8665] 0 8665 18146 8743 26 4 0 1000 syz-executor.3 [ 9020] 0 9020 18146 8713 25 3 0 1000 syz-executor.2 [ 9043] 0 9043 18276 8722 25 3 0 1000 syz-executor.2 [ 9045] 0 9045 5364 170 15 3 0 -1000 udevd [ 9092] 0 9092 5364 170 15 3 0 -1000 udevd [ 9097] 0 9097 18179 8748 26 4 0 1000 syz-executor.2 [ 9106] 0 9106 18212 8748 26 5 0 1000 syz-executor.5 [ 9113] 0 9113 18114 16 23 3 0 0 syz-executor.0 [ 9114] 0 9114 18113 8730 24 4 0 0 syz-executor.0 [ 9266] 0 9266 18147 8709 25 3 0 1000 syz-executor.0 [ 9269] 0 9269 18213 8714 25 3 0 1000 syz-executor.0 [ 9305] 0 9297 18278 5 26 4 0 1000 syz-executor.2 [ 9310] 0 9310 18212 8749 26 4 0 1000 syz-executor.3 [ 9379] 0 9379 18146 8711 25 4 0 1000 syz-executor.5 [ 9383] 0 9383 18212 8718 26 4 0 1000 syz-executor.5 Out of memory: Kill process 9106 (syz-executor.5) score 1004 or sacrifice child Killed process 9106 (syz-executor.5) total-vm:72848kB, anon-rss:172kB, file-rss:34820kB, shmem-rss:0kB syz-executor.5 invoked oom-killer: gfp_mask=0x2400840(GFP_NOFS|__GFP_NOFAIL), nodemask=0, order=0, oom_score_adj=1000 CPU: 1 PID: 9106 Comm: syz-executor.5 Not tainted 4.9.194+ #0 ffff8801c4e7ee78 ffffffff81b67001 ffff8801c4e7f1d0 ffffffff833f1c30 00000000000003e8 ffff8801c4e7f1e8 0000000000000000 ffff8801c4e7eef8 ffffffff81506e44 0000000000000000 00000000000003e8 ffffffff8282ac45 Call Trace: [<000000001a382594>] __dump_stack lib/dump_stack.c:15 [inline] [<000000001a382594>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000006ef29ecb>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<00000000b15de231>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<00000000c81ba17c>] out_of_memory mm/oom_kill.c:1069 [inline] [<00000000c81ba17c>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<00000000872bc44a>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<00000000872bc44a>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<00000000872bc44a>] __alloc_pages_nodemask+0x151e/0x1a80 mm/page_alloc.c:3861 [<0000000049d1311e>] __alloc_pages include/linux/gfp.h:433 [inline] [<0000000049d1311e>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<0000000049d1311e>] alloc_pages_node include/linux/gfp.h:460 [inline] [<0000000049d1311e>] __page_cache_alloc include/linux/pagemap.h:208 [inline] [<0000000049d1311e>] pagecache_get_page+0x248/0x740 mm/filemap.c:1367 [<0000000056736b06>] find_or_create_page include/linux/pagemap.h:310 [inline] [<0000000056736b06>] ext4_mb_load_buddy_gfp+0x659/0x1100 fs/ext4/mballoc.c:1208 [<000000006bec11b0>] ext4_free_blocks+0x827/0x23d0 fs/ext4/mballoc.c:4834 [<0000000004e954a1>] ext4_remove_blocks fs/ext4/extents.c:2585 [inline] [<0000000004e954a1>] ext4_ext_rm_leaf fs/ext4/extents.c:2741 [inline] [<0000000004e954a1>] ext4_ext_remove_space+0x21cd/0x3a90 fs/ext4/extents.c:2974 [<0000000073a51f2e>] ext4_ext_truncate+0x17e/0x280 fs/ext4/extents.c:4677 [<00000000f1159591>] ext4_truncate+0x526/0x1300 fs/ext4/inode.c:4243 [<00000000a4bde13f>] ext4_evict_inode+0xc50/0x1270 fs/ext4/inode.c:265 [<00000000dafc796a>] evict+0x2e9/0x630 fs/inode.c:553 [<00000000f319685d>] iput_final fs/inode.c:1516 [inline] [<00000000f319685d>] iput fs/inode.c:1543 [inline] [<00000000f319685d>] iput+0x370/0x900 fs/inode.c:1528 [<000000005bbeccdc>] dentry_unlink_inode+0x277/0x330 fs/dcache.c:369 [<0000000001f766bb>] __dentry_kill+0x333/0x580 fs/dcache.c:571 [<00000000a51773f3>] dentry_kill fs/dcache.c:612 [inline] [<00000000a51773f3>] dput.part.0+0x509/0x7c0 fs/dcache.c:829 [<00000000f51797d4>] dput+0x20/0x30 fs/dcache.c:791 [<00000000aca7b73a>] path_put+0x31/0x70 fs/namei.c:519 [<0000000060dd294b>] free_fs_struct+0x25/0x70 fs/fs_struct.c:90 [<0000000038376a77>] exit_fs+0xe7/0x120 fs/fs_struct.c:108 [<00000000941136a1>] do_exit+0x769/0x2aa0 kernel/exit.c:838 [<00000000cb30f46e>] do_group_exit+0x111/0x300 kernel/exit.c:946 [<0000000019747576>] get_signal+0x377/0x1cb0 kernel/signal.c:2395 [<00000000cc470fbf>] do_signal+0x9c/0x1920 arch/x86/kernel/signal.c:812 [<000000003cb691bf>] exit_to_usermode_loop+0x11c/0x160 arch/x86/entry/common.c:159 [<000000007238aaef>] prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] [<000000007238aaef>] syscall_return_slowpath arch/x86/entry/common.c:266 [inline] [<000000007238aaef>] do_syscall_64+0x3ab/0x5c0 arch/x86/entry/common.c:293 [<00000000eca1a969>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:66515 inactive_anon:313 isolated_anon:0 active_file:27 inactive_file:35 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:4999 slab_unreclaimable:59862 mapped:43543 shmem:336 pagetables:1154 bounce:0 free:25 free_pcp:241 free_cma:0 Node 0 active_anon:266060kB inactive_anon:1252kB active_file:108kB inactive_file:140kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:174172kB dirty:0kB writeback:0kB shmem:1344kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:24kB min:4696kB low:7712kB high:10728kB active_anon:448kB inactive_anon:8kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020092kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:324kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:76kB min:5580kB low:9168kB high:12756kB active_anon:265612kB inactive_anon:1244kB active_file:108kB inactive_file:140kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:19996kB slab_unreclaimable:239124kB kernel_stack:4800kB pagetables:4616kB bounce:0kB free_pcp:964kB local_pcp:692kB free_cma:0kB DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB 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 313627 pages reserved [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 470] 0 470 5365 169 16 3 0 -1000 udevd [ 1757] 0 1757 2492 573 8 3 0 0 dhclient [ 1890] 0 1890 30582 109 24 3 0 0 rsyslogd [ 1944] 0 1944 4724 50 14 3 0 0 cron [ 1963] 0 1963 12926 1231 28 3 0 0 restorecond [ 1981] 0 1981 3735 45 11 3 0 0 mcstransd [ 1991] 0 1991 12489 153 27 3 0 -1000 sshd [ 2021] 0 2021 3648 40 12 3 0 0 getty [ 2031] 0 2031 17820 197 37 3 0 0 sshd [ 2033] 0 2033 124380 62211 206 5 0 0 syz-fuzzer [ 2094] 0 2094 18114 15 23 3 0 0 syz-executor.1 [ 2114] 0 2114 18113 8734 24 4 0 0 syz-executor.1 [ 3429] 0 3429 18144 8715 25 3 0 1000 syz-executor.1 [ 3432] 0 3432 18177 8717 25 3 0 1000 syz-executor.1 [ 6309] 0 6309 18146 8716 25 3 0 1000 syz-executor.1 [ 6330] 0 6330 18245 8726 27 3 0 1000 syz-executor.1 [ 6386] 0 6386 18114 17 23 3 0 0 syz-executor.2 [ 6387] 0 6387 18113 8709 24 4 0 0 syz-executor.2 [ 6578] 0 6578 18179 8748 26 4 0 1000 syz-executor.1 [ 7311] 0 7311 18179 8748 26 4 0 1000 syz-executor.1 [ 7331] 0 7331 18114 15 23 4 0 0 syz-executor.5 [ 7332] 0 7332 18113 8731 24 5 0 0 syz-executor.5 [ 7970] 0 7970 18179 8748 26 4 0 1000 syz-executor.1 [ 8007] 0 8007 18179 8748 26 4 0 1000 syz-executor.1 [ 8184] 0 8184 18114 16 23 3 0 0 syz-executor.3 [ 8185] 0 8185 18113 8732 24 4 0 0 syz-executor.3 [ 8464] 0 8464 5529 314 15 3 0 -1000 udevd [ 8468] 0 8468 5529 314 15 3 0 -1000 udevd [ 8665] 0 8665 18146 8743 26 4 0 1000 syz-executor.3 [ 9020] 0 9020 18146 8713 25 3 0 1000 syz-executor.2 [ 9043] 0 9043 18276 8722 25 3 0 1000 syz-executor.2 [ 9045] 0 9045 5364 170 15 3 0 -1000 udevd [ 9092] 0 9092 5364 170 15 3 0 -1000 udevd [ 9097] 0 9097 18179 8748 26 4 0 1000 syz-executor.2 [ 9113] 0 9113 18114 16 23 3 0 0 syz-executor.0 [ 9114] 0 9114 18113 8730 24 4 0 0 syz-executor.0 [ 9266] 0 9266 18147 8709 25 3 0 1000 syz-executor.0 [ 9269] 0 9269 18213 8714 25 3 0 1000 syz-executor.0 [ 9305] 0 9297 18278 5 26 4 0 1000 syz-executor.2 [ 9310] 0 9310 18212 8749 26 4 0 1000 syz-executor.3 [ 9379] 0 9379 18146 8711 25 4 0 1000 syz-executor.5 [ 9383] 0 9383 18212 8718 26 4 0 1000 syz-executor.5 Out of memory: Kill process 9310 (syz-executor.3) score 1004 or sacrifice child Killed process 9310 (syz-executor.3) total-vm:72848kB, anon-rss:176kB, file-rss:34820kB, shmem-rss:0kB syz-executor.3 invoked oom-killer: gfp_mask=0x2400840(GFP_NOFS|__GFP_NOFAIL), nodemask=0, order=0, oom_score_adj=1000 CPU: 1 PID: 9310 Comm: syz-executor.3 Not tainted 4.9.194+ #0 ffff8801d3286e78 ffffffff81b67001 ffff8801d32871d0 ffffffff833f1c30 00000000000003e8 ffff8801d32871e8 0000000000000000 ffff8801d3286ef8 ffffffff81506e44 0000000000000000 00000000000003e8 ffffffff8282ac45 Call Trace: [<000000001a382594>] __dump_stack lib/dump_stack.c:15 [inline] [<000000001a382594>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000006ef29ecb>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<00000000b15de231>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<00000000c81ba17c>] out_of_memory mm/oom_kill.c:1069 [inline] [<00000000c81ba17c>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<00000000872bc44a>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<00000000872bc44a>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<00000000872bc44a>] __alloc_pages_nodemask+0x151e/0x1a80 mm/page_alloc.c:3861 [<0000000049d1311e>] __alloc_pages include/linux/gfp.h:433 [inline] [<0000000049d1311e>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<0000000049d1311e>] alloc_pages_node include/linux/gfp.h:460 [inline] [<0000000049d1311e>] __page_cache_alloc include/linux/pagemap.h:208 [inline] [<0000000049d1311e>] pagecache_get_page+0x248/0x740 mm/filemap.c:1367 [<0000000056736b06>] find_or_create_page include/linux/pagemap.h:310 [inline] [<0000000056736b06>] ext4_mb_load_buddy_gfp+0x659/0x1100 fs/ext4/mballoc.c:1208 [<000000006bec11b0>] ext4_free_blocks+0x827/0x23d0 fs/ext4/mballoc.c:4834 [<0000000004e954a1>] ext4_remove_blocks fs/ext4/extents.c:2585 [inline] [<0000000004e954a1>] ext4_ext_rm_leaf fs/ext4/extents.c:2741 [inline] [<0000000004e954a1>] ext4_ext_remove_space+0x21cd/0x3a90 fs/ext4/extents.c:2974 [<0000000073a51f2e>] ext4_ext_truncate+0x17e/0x280 fs/ext4/extents.c:4677 [<00000000f1159591>] ext4_truncate+0x526/0x1300 fs/ext4/inode.c:4243 [<00000000a4bde13f>] ext4_evict_inode+0xc50/0x1270 fs/ext4/inode.c:265 [<00000000dafc796a>] evict+0x2e9/0x630 fs/inode.c:553 [<00000000f319685d>] iput_final fs/inode.c:1516 [inline] [<00000000f319685d>] iput fs/inode.c:1543 [inline] [<00000000f319685d>] iput+0x370/0x900 fs/inode.c:1528 [<000000005bbeccdc>] dentry_unlink_inode+0x277/0x330 fs/dcache.c:369 [<0000000001f766bb>] __dentry_kill+0x333/0x580 fs/dcache.c:571 [<00000000a51773f3>] dentry_kill fs/dcache.c:612 [inline] [<00000000a51773f3>] dput.part.0+0x509/0x7c0 fs/dcache.c:829 [<00000000f51797d4>] dput+0x20/0x30 fs/dcache.c:791 [<00000000aca7b73a>] path_put+0x31/0x70 fs/namei.c:519 [<0000000060dd294b>] free_fs_struct+0x25/0x70 fs/fs_struct.c:90 [<0000000038376a77>] exit_fs+0xe7/0x120 fs/fs_struct.c:108 [<00000000941136a1>] do_exit+0x769/0x2aa0 kernel/exit.c:838 [<00000000cb30f46e>] do_group_exit+0x111/0x300 kernel/exit.c:946 [<0000000019747576>] get_signal+0x377/0x1cb0 kernel/signal.c:2395 [<00000000cc470fbf>] do_signal+0x9c/0x1920 arch/x86/kernel/signal.c:812 [<000000003cb691bf>] exit_to_usermode_loop+0x11c/0x160 arch/x86/entry/common.c:159 [<000000007238aaef>] prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] [<000000007238aaef>] syscall_return_slowpath arch/x86/entry/common.c:266 [inline] [<000000007238aaef>] do_syscall_64+0x3ab/0x5c0 arch/x86/entry/common.c:293 [<00000000eca1a969>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:66490 inactive_anon:313 isolated_anon:0 active_file:27 inactive_file:35 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:4999 slab_unreclaimable:59862 mapped:43543 shmem:336 pagetables:1117 bounce:0 free:100 free_pcp:246 free_cma:0 Node 0 active_anon:265960kB inactive_anon:1252kB active_file:108kB inactive_file:140kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:174172kB dirty:0kB writeback:0kB shmem:1344kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:24kB min:4696kB low:7712kB high:10728kB active_anon:448kB inactive_anon:8kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020092kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:324kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:376kB min:5580kB low:9168kB high:12756kB active_anon:265512kB inactive_anon:1244kB active_file:108kB inactive_file:140kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:19996kB slab_unreclaimable:239124kB kernel_stack:4768kB pagetables:4468kB bounce:0kB free_pcp:984kB local_pcp:712kB free_cma:0kB DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB 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 313627 pages reserved [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 470] 0 470 5365 169 16 3 0 -1000 udevd [ 1757] 0 1757 2492 573 8 3 0 0 dhclient [ 1890] 0 1890 30582 109 24 3 0 0 rsyslogd [ 1944] 0 1944 4724 50 14 3 0 0 cron [ 1963] 0 1963 12926 1231 28 3 0 0 restorecond [ 1981] 0 1981 3735 45 11 3 0 0 mcstransd [ 1991] 0 1991 12489 153 27 3 0 -1000 sshd [ 2021] 0 2021 3648 40 12 3 0 0 getty [ 2031] 0 2031 17820 197 37 3 0 0 sshd [ 2033] 0 2033 124380 62211 206 5 0 0 syz-fuzzer [ 2094] 0 2094 18114 15 23 3 0 0 syz-executor.1 [ 2114] 0 2114 18113 8734 24 4 0 0 syz-executor.1 [ 3429] 0 3429 18144 8715 25 3 0 1000 syz-executor.1 [ 3432] 0 3432 18177 8717 25 3 0 1000 syz-executor.1 [ 6309] 0 6309 18146 8716 25 3 0 1000 syz-executor.1 [ 6330] 0 6330 18245 8726 27 3 0 1000 syz-executor.1 [ 6386] 0 6386 18114 17 23 3 0 0 syz-executor.2 [ 6387] 0 6387 18113 8709 24 4 0 0 syz-executor.2 [ 6578] 0 6578 18179 8748 26 4 0 1000 syz-executor.1 [ 7311] 0 7311 18179 8748 26 4 0 1000 syz-executor.1 [ 7331] 0 7331 18114 15 23 4 0 0 syz-executor.5 [ 7332] 0 7332 18113 8731 24 5 0 0 syz-executor.5 [ 7970] 0 7970 18179 8748 26 4 0 1000 syz-executor.1 [ 8007] 0 8007 18179 8748 26 4 0 1000 syz-executor.1 [ 8184] 0 8184 18114 16 23 3 0 0 syz-executor.3 [ 8185] 0 8185 18113 8732 24 4 0 0 syz-executor.3 [ 8464] 0 8464 5529 314 15 3 0 -1000 udevd [ 8468] 0 8468 5529 314 15 3 0 -1000 udevd [ 8665] 0 8665 18146 8743 26 4 0 1000 syz-executor.3 [ 9020] 0 9020 18146 8713 25 3 0 1000 syz-executor.2 [ 9043] 0 9043 18276 8722 25 3 0 1000 syz-executor.2 [ 9045] 0 9045 5364 170 15 3 0 -1000 udevd [ 9092] 0 9092 5364 170 15 3 0 -1000 udevd [ 9097] 0 9097 18179 8748 26 4 0 1000 syz-executor.2 [ 9113] 0 9113 18114 16 23 3 0 0 syz-executor.0 [ 9114] 0 9114 18113 8730 24 4 0 0 syz-executor.0 [ 9266] 0 9266 18147 8709 25 3 0 1000 syz-executor.0 [ 9269] 0 9269 18213 8714 25 3 0 1000 syz-executor.0 [ 9305] 0 9297 18278 5 26 4 0 1000 syz-executor.2 [ 9379] 0 9379 18146 8711 25 4 0 1000 syz-executor.5 [ 9383] 0 9383 18212 8718 26 4 0 1000 syz-executor.5 Out of memory: Kill process 6578 (syz-executor.1) score 1004 or sacrifice child Killed process 6578 (syz-executor.1) total-vm:72716kB, anon-rss:172kB, file-rss:34820kB, shmem-rss:0kB syz-executor.2 invoked oom-killer: gfp_mask=0x2400840(GFP_NOFS|__GFP_NOFAIL), nodemask=0, order=0, oom_score_adj=1000 CPU: 0 PID: 8640 Comm: syz-executor.2 Not tainted 4.9.194+ #0 ffff8801c8ea6e78 ffffffff81b67001 ffff8801c8ea71d0 ffffffff833f1c30 00000000000003e8 ffff8801c8ea71e8 0000000000000000 ffff8801c8ea6ef8 ffffffff81506e44 0000000000000000 00000000000003e8 ffffffff8282ac45 Call Trace: [<000000001a382594>] __dump_stack lib/dump_stack.c:15 [inline] [<000000001a382594>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000006ef29ecb>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<00000000b15de231>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<00000000c81ba17c>] out_of_memory mm/oom_kill.c:1069 [inline] [<00000000c81ba17c>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<00000000872bc44a>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<00000000872bc44a>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<00000000872bc44a>] __alloc_pages_nodemask+0x151e/0x1a80 mm/page_alloc.c:3861 [<0000000049d1311e>] __alloc_pages include/linux/gfp.h:433 [inline] [<0000000049d1311e>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<0000000049d1311e>] alloc_pages_node include/linux/gfp.h:460 [inline] [<0000000049d1311e>] __page_cache_alloc include/linux/pagemap.h:208 [inline] [<0000000049d1311e>] pagecache_get_page+0x248/0x740 mm/filemap.c:1367 [<0000000056736b06>] find_or_create_page include/linux/pagemap.h:310 [inline] [<0000000056736b06>] ext4_mb_load_buddy_gfp+0x659/0x1100 fs/ext4/mballoc.c:1208 [<000000006bec11b0>] ext4_free_blocks+0x827/0x23d0 fs/ext4/mballoc.c:4834 [<0000000004e954a1>] ext4_remove_blocks fs/ext4/extents.c:2585 [inline] [<0000000004e954a1>] ext4_ext_rm_leaf fs/ext4/extents.c:2741 [inline] [<0000000004e954a1>] ext4_ext_remove_space+0x21cd/0x3a90 fs/ext4/extents.c:2974 [<0000000073a51f2e>] ext4_ext_truncate+0x17e/0x280 fs/ext4/extents.c:4677 [<00000000f1159591>] ext4_truncate+0x526/0x1300 fs/ext4/inode.c:4243 [<00000000a4bde13f>] ext4_evict_inode+0xc50/0x1270 fs/ext4/inode.c:265 [<00000000dafc796a>] evict+0x2e9/0x630 fs/inode.c:553 [<00000000f319685d>] iput_final fs/inode.c:1516 [inline] [<00000000f319685d>] iput fs/inode.c:1543 [inline] [<00000000f319685d>] iput+0x370/0x900 fs/inode.c:1528 [<000000005bbeccdc>] dentry_unlink_inode+0x277/0x330 fs/dcache.c:369 [<0000000001f766bb>] __dentry_kill+0x333/0x580 fs/dcache.c:571 [<00000000a51773f3>] dentry_kill fs/dcache.c:612 [inline] [<00000000a51773f3>] dput.part.0+0x509/0x7c0 fs/dcache.c:829 [<00000000f51797d4>] dput+0x20/0x30 fs/dcache.c:791 [<00000000aca7b73a>] path_put+0x31/0x70 fs/namei.c:519 [<0000000060dd294b>] free_fs_struct+0x25/0x70 fs/fs_struct.c:90 [<0000000038376a77>] exit_fs+0xe7/0x120 fs/fs_struct.c:108 [<00000000941136a1>] do_exit+0x769/0x2aa0 kernel/exit.c:838 [<00000000cb30f46e>] do_group_exit+0x111/0x300 kernel/exit.c:946 [<0000000019747576>] get_signal+0x377/0x1cb0 kernel/signal.c:2395 [<00000000cc470fbf>] do_signal+0x9c/0x1920 arch/x86/kernel/signal.c:812 [<000000003cb691bf>] exit_to_usermode_loop+0x11c/0x160 arch/x86/entry/common.c:159 [<000000007238aaef>] prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] [<000000007238aaef>] syscall_return_slowpath arch/x86/entry/common.c:266 [inline] [<000000007238aaef>] do_syscall_64+0x3ab/0x5c0 arch/x86/entry/common.c:293 [<00000000eca1a969>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:66440 inactive_anon:313 isolated_anon:0 active_file:27 inactive_file:35 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:4999 slab_unreclaimable:59862 mapped:43543 shmem:336 pagetables:1080 bounce:0 free:350 free_pcp:31 free_cma:0 Node 0 active_anon:265760kB inactive_anon:1252kB active_file:108kB inactive_file:140kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:174172kB dirty:0kB writeback:0kB shmem:1344kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:24kB min:4696kB low:7712kB high:10728kB active_anon:448kB inactive_anon:8kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020092kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:324kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:1376kB min:5580kB low:9168kB high:12756kB active_anon:265312kB inactive_anon:1244kB active_file:108kB inactive_file:140kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:19996kB slab_unreclaimable:239124kB kernel_stack:4736kB pagetables:4320kB bounce:0kB free_pcp:124kB local_pcp:0kB free_cma:0kB DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB 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 313627 pages reserved [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 470] 0 470 5365 169 16 3 0 -1000 udevd [ 1757] 0 1757 2492 573 8 3 0 0 dhclient [ 1890] 0 1890 30582 109 24 3 0 0 rsyslogd [ 1944] 0 1944 4724 50 14 3 0 0 cron [ 1963] 0 1963 12926 1231 28 3 0 0 restorecond [ 1981] 0 1981 3735 45 11 3 0 0 mcstransd [ 1991] 0 1991 12489 153 27 3 0 -1000 sshd [ 2021] 0 2021 3648 40 12 3 0 0 getty [ 2031] 0 2031 17820 197 37 3 0 0 sshd [ 2033] 0 2033 124380 62211 206 5 0 0 syz-fuzzer [ 2094] 0 2094 18114 15 23 3 0 0 syz-executor.1 [ 2114] 0 2114 18113 8734 24 4 0 0 syz-executor.1 [ 3429] 0 3429 18144 8715 25 3 0 1000 syz-executor.1 [ 3432] 0 3432 18177 8717 25 3 0 1000 syz-executor.1 [ 6309] 0 6309 18146 8716 25 3 0 1000 syz-executor.1 [ 6330] 0 6330 18245 8726 27 3 0 1000 syz-executor.1 [ 6386] 0 6386 18114 17 23 3 0 0 syz-executor.2 [ 6387] 0 6387 18113 8709 24 4 0 0 syz-executor.2 [ 7311] 0 7311 18179 8748 26 4 0 1000 syz-executor.1 [ 7331] 0 7331 18114 15 23 4 0 0 syz-executor.5 [ 7332] 0 7332 18113 8731 24 5 0 0 syz-executor.5 [ 7970] 0 7970 18179 8748 26 4 0 1000 syz-executor.1 [ 8007] 0 8007 18179 8748 26 4 0 1000 syz-executor.1 [ 8184] 0 8184 18114 16 23 3 0 0 syz-executor.3 [ 8185] 0 8185 18113 8732 24 4 0 0 syz-executor.3 [ 8464] 0 8464 5529 314 15 3 0 -1000 udevd [ 8468] 0 8468 5529 314 15 3 0 -1000 udevd [ 8665] 0 8665 18146 8743 26 4 0 1000 syz-executor.3 [ 9020] 0 9020 18146 8713 25 3 0 1000 syz-executor.2 [ 9043] 0 9043 18276 8722 25 3 0 1000 syz-executor.2 [ 9045] 0 9045 5364 170 15 3 0 -1000 udevd [ 9092] 0 9092 5364 170 15 3 0 -1000 udevd [ 9097] 0 9097 18179 8748 26 4 0 1000 syz-executor.2 [ 9113] 0 9113 18114 16 23 3 0 0 syz-executor.0 [ 9114] 0 9114 18113 8730 24 4 0 0 syz-executor.0 [ 9266] 0 9266 18147 8709 25 3 0 1000 syz-executor.0 [ 9269] 0 9269 18213 8714 25 3 0 1000 syz-executor.0 [ 9305] 0 9297 18278 5 26 4 0 1000 syz-executor.2 [ 9379] 0 9379 18146 8711 25 4 0 1000 syz-executor.5 [ 9383] 0 9383 18212 8718 26 4 0 1000 syz-executor.5 Out of memory: Kill process 7311 (syz-executor.1) score 1004 or sacrifice child Killed process 7311 (syz-executor.1) total-vm:72716kB, anon-rss:172kB, file-rss:34820kB, shmem-rss:0kB syz-executor.1 invoked oom-killer: gfp_mask=0x2400840(GFP_NOFS|__GFP_NOFAIL), nodemask=0, order=0, oom_score_adj=1000 CPU: 0 PID: 5376 Comm: syz-executor.1 Not tainted 4.9.194+ #0 ffff8801d27c6e78 ffffffff81b67001 ffff8801d27c71d0 ffffffff833f1c30 00000000000003e8 ffff8801d27c71e8 0000000000000000 ffff8801d27c6ef8 ffffffff81506e44 0000000000000000 00000000000003e8 ffffffff8282ac45 Call Trace: [<000000001a382594>] __dump_stack lib/dump_stack.c:15 [inline] [<000000001a382594>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000006ef29ecb>] dump_header.isra.0+0x142/0x74c mm/oom_kill.c:417 [<00000000b15de231>] oom_kill_process.cold+0xd/0xa74 mm/oom_kill.c:852 [<00000000c81ba17c>] out_of_memory mm/oom_kill.c:1069 [inline] [<00000000c81ba17c>] out_of_memory+0x29b/0xea0 mm/oom_kill.c:1009 [<00000000872bc44a>] __alloc_pages_may_oom mm/page_alloc.c:3136 [inline] [<00000000872bc44a>] __alloc_pages_slowpath mm/page_alloc.c:3750 [inline] [<00000000872bc44a>] __alloc_pages_nodemask+0x151e/0x1a80 mm/page_alloc.c:3861 [<0000000049d1311e>] __alloc_pages include/linux/gfp.h:433 [inline] [<0000000049d1311e>] __alloc_pages_node include/linux/gfp.h:446 [inline] [<0000000049d1311e>] alloc_pages_node include/linux/gfp.h:460 [inline] [<0000000049d1311e>] __page_cache_alloc include/linux/pagemap.h:208 [inline] [<0000000049d1311e>] pagecache_get_page+0x248/0x740 mm/filemap.c:1367 [<0000000056736b06>] find_or_create_page include/linux/pagemap.h:310 [inline] [<0000000056736b06>] ext4_mb_load_buddy_gfp+0x659/0x1100 fs/ext4/mballoc.c:1208 [<000000006bec11b0>] ext4_free_blocks+0x827/0x23d0 fs/ext4/mballoc.c:4834 [<0000000004e954a1>] ext4_remove_blocks fs/ext4/extents.c:2585 [inline] [<0000000004e954a1>] ext4_ext_rm_leaf fs/ext4/extents.c:2741 [inline] [<0000000004e954a1>] ext4_ext_remove_space+0x21cd/0x3a90 fs/ext4/extents.c:2974 [<0000000073a51f2e>] ext4_ext_truncate+0x17e/0x280 fs/ext4/extents.c:4677 [<00000000f1159591>] ext4_truncate+0x526/0x1300 fs/ext4/inode.c:4243 [<00000000a4bde13f>] ext4_evict_inode+0xc50/0x1270 fs/ext4/inode.c:265 [<00000000dafc796a>] evict+0x2e9/0x630 fs/inode.c:553 [<00000000f319685d>] iput_final fs/inode.c:1516 [inline] [<00000000f319685d>] iput fs/inode.c:1543 [inline] [<00000000f319685d>] iput+0x370/0x900 fs/inode.c:1528 [<000000005bbeccdc>] dentry_unlink_inode+0x277/0x330 fs/dcache.c:369 [<0000000001f766bb>] __dentry_kill+0x333/0x580 fs/dcache.c:571 [<00000000a51773f3>] dentry_kill fs/dcache.c:612 [inline] [<00000000a51773f3>] dput.part.0+0x509/0x7c0 fs/dcache.c:829 [<00000000f51797d4>] dput+0x20/0x30 fs/dcache.c:791 [<00000000aca7b73a>] path_put+0x31/0x70 fs/namei.c:519 [<0000000060dd294b>] free_fs_struct+0x25/0x70 fs/fs_struct.c:90 [<0000000038376a77>] exit_fs+0xe7/0x120 fs/fs_struct.c:108 [<00000000941136a1>] do_exit+0x769/0x2aa0 kernel/exit.c:838 [<00000000cb30f46e>] do_group_exit+0x111/0x300 kernel/exit.c:946 [<0000000019747576>] get_signal+0x377/0x1cb0 kernel/signal.c:2395 [<00000000cc470fbf>] do_signal+0x9c/0x1920 arch/x86/kernel/signal.c:812 [<000000003cb691bf>] exit_to_usermode_loop+0x11c/0x160 arch/x86/entry/common.c:159 [<000000007238aaef>] prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] [<000000007238aaef>] syscall_return_slowpath arch/x86/entry/common.c:266 [inline] [<000000007238aaef>] do_syscall_64+0x3ab/0x5c0 arch/x86/entry/common.c:293 [<00000000eca1a969>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:66415 inactive_anon:313 isolated_anon:0 active_file:27 inactive_file:35 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:4999 slab_unreclaimable:59862 mapped:43543 shmem:336 pagetables:1080 bounce:0 free:350 free_pcp:130 free_cma:0 Node 0 active_anon:265660kB inactive_anon:1252kB active_file:108kB inactive_file:140kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:174172kB dirty:0kB writeback:0kB shmem:1344kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:24kB min:4696kB low:7712kB high:10728kB active_anon:448kB inactive_anon:8kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020092kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:324kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB Normal free:1376kB min:5580kB low:9168kB high:12756kB active_anon:265212kB inactive_anon:1244kB active_file:108kB inactive_file:140kB unevictable:0kB writepending:0kB present:4718592kB managed:3589316kB mlocked:0kB slab_reclaimable:19996kB slab_unreclaimable:239124kB kernel_stack:4704kB pagetables:4320kB bounce:0kB free_pcp:520kB local_pcp:124kB free_cma:0kB DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB 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 313627 pages reserved [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 470] 0 470 5365 169 16 3 0 -1000 udevd [ 1757] 0 1757 2492 573 8 3 0 0 dhclient [ 1890] 0 1890 30582 109 24 3 0 0 rsyslogd [ 1944] 0 1944 4724 50 14 3 0 0 cron [ 1963] 0 1963 12926 1231 28 3 0 0 restorecond [ 1981] 0 1981 3735 45 11 3 0 0 mcstransd [ 1991] 0 1991 12489 153 27 3 0 -1000 sshd [ 2021] 0 2021 3648 40 12 3 0 0 getty [ 2031] 0 2031 17820 197 37 3 0 0 sshd [ 2033] 0 2033 124380 62211 206 5 0 0 syz-fuzzer [ 2094] 0 2094 18114 15 23 3 0 0 syz-executor.1 [ 2114] 0 2114 18113 8734 24 4 0 0 syz-executor.1 [ 3429] 0 3429 18144 8715 25 3 0 1000 syz-executor.1 [ 3432] 0 3432 18177 8717 25 3 0 1000 syz-executor.1 [ 6309] 0 6309 18146 8716 25 3 0 1000 syz-executor.1 [ 6330] 0 6330 18245 8726 27 3 0 1000 syz-executor.1 [ 6386] 0 6386 18114 17 23 3 0 0 syz-executor.2 [ 6387] 0 6387 18113 8709 24 4 0 0 syz-executor.2 [ 7331] 0 7331 18114 15 23 4 0 0 syz-executor.5 [ 7332] 0 7332 18113 8731 24 5 0 0 syz-executor.5 [ 7970] 0 7970 18179 8748 26 4 0 1000 syz-executor.1 [ 8007] 0 8007 18179 8748 26 4 0 1000 syz-executor.1 [ 8184] 0 8184 18114 16 23 3 0 0 syz-executor.3 [ 8185] 0 8185 18113 8732 24 4 0 0 syz-executor.3 [ 8464] 0 8464 5529 314 15 3 0 -1000 udevd [ 8468] 0 8468 5529 314 15 3 0 -1000 udevd [ 8665] 0 8665 18146 8743 26 4 0 1000 syz-executor.3 [ 9020] 0 9020 18146 8713 25 3 0 1000 syz-executor.2 [ 9043] 0 9043 18276 8722 25 3 0 1000 syz-executor.2 [ 9045] 0 9045 5364 170 15 3 0 -1000 udevd [ 9092] 0 9092 5364 170 15 3 0 -1000 udevd [ 9097] 0 9097 18179 8748 26 4 0 1000 syz-executor.2 [ 9113] 0 9113 18114 16 23 3 0 0 syz-executor.0 [ 9114] 0 9114 18113 8730 24 4 0 0 syz-executor.0 [ 9266] 0 9266 18147 8709 25 3 0 1000 syz-executor.0 [ 9269] 0 9269 18213 8714 25 3 0 1000 syz-executor.0 [ 9305] 0 9297 18278 5 26 4 0 1000 syz-executor.2 [ 9379] 0 9379 18146 8711 25 4 0 1000 syz-executor.5 [ 9383] 0 9383 18212 8718 26 4 0 1000 syz-executor.5 Out of memory: Kill process 7970 (syz-executor.1) score 1004 or sacrifice child Killed process 7970 (syz-executor.1) total-vm:72716kB, anon-rss:172kB, file-rss:34820kB, shmem-rss:0kB