syz-executor4 invoked oom-killer: gfp_mask=0x7200c2(GFP_HIGHUSER|__GFP_ACCOUNT), nodemask=(null), order=0, oom_score_adj=0 syz-executor4 cpuset=syz4 mems_allowed=0 CPU: 1 PID: 4367 Comm: syz-executor4 Not tainted 4.20.0-rc6+ #151 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Kernel panic - not syncing: corrupted stack end detected inside scheduler Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 dump_header+0x27b/0xf72 mm/oom_kill.c:441 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120 mem_cgroup_out_of_memory+0x15e/0x210 mm/memcontrol.c:1386 mem_cgroup_oom mm/memcontrol.c:1703 [inline] try_charge+0xda9/0x1700 mm/memcontrol.c:2260 memcg_kmem_charge_memcg+0x7c/0x120 mm/memcontrol.c:2568 memcg_kmem_charge+0x149/0x350 mm/memcontrol.c:2601 __alloc_pages_nodemask+0x75e/0xea0 mm/page_alloc.c:4397 alloc_pages_current+0x173/0x350 mm/mempolicy.c:2106 alloc_pages include/linux/gfp.h:509 [inline] pipe_write+0x910/0xec0 fs/pipe.c:416 call_write_iter include/linux/fs.h:1857 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x6b8/0x9f0 fs/read_write.c:487 vfs_write+0x1fc/0x560 fs/read_write.c:549 ksys_write+0x101/0x260 fs/read_write.c:598 __do_sys_write fs/read_write.c:610 [inline] __se_sys_write fs/read_write.c:607 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:607 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457679 Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f2488b2cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457679 RDX: 00000000fffffef3 RSI: 00000000200001c0 RDI: 0000000000000006 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2488b2d6d4 R13: 00000000004c2db5 R14: 00000000004da348 R15: 00000000ffffffff CPU: 0 PID: 4384 Comm: syz-executor4 Not tainted 4.20.0-rc6+ #151 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 panic+0x2ad/0x55c kernel/panic.c:188 schedule_debug kernel/sched/core.c:3285 [inline] __schedule+0x21c6/0x21d0 kernel/sched/core.c:3394 kobject: 'loop3' (0000000045fc58b6): kobject_uevent_env preempt_schedule_notrace+0x70/0x140 kernel/sched/core.c:3670 ___preempt_schedule_notrace+0x16/0x31 rcu_is_watching+0x23/0x30 kernel/rcu/tree.c:907 rcu_read_lock+0x43/0x70 include/linux/rcupdate.h:608 mem_cgroup_iter+0x208/0x1160 mm/memcontrol.c:934 shrink_node+0x340/0x16b0 mm/vmscan.c:2723 shrink_zones mm/vmscan.c:2987 [inline] do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3049 try_to_free_mem_cgroup_pages+0x4cf/0xcd0 mm/vmscan.c:3350 try_charge+0x521/0x1700 mm/memcontrol.c:2211 mem_cgroup_try_charge+0x627/0xe20 mm/memcontrol.c:5890 __add_to_page_cache_locked+0x793/0x1840 mm/filemap.c:812 add_to_page_cache_lru+0x355/0xdb0 mm/filemap.c:886 pagecache_get_page+0x53a/0xf00 mm/filemap.c:1565 find_or_create_page include/linux/pagemap.h:322 [inline] ext4_mb_load_buddy_gfp+0xddf/0x1e70 fs/ext4/mballoc.c:1158 ext4_mb_load_buddy fs/ext4/mballoc.c:1241 [inline] ext4_mb_regular_allocator+0x634/0x1590 fs/ext4/mballoc.c:2190 ext4_mb_new_blocks+0x1de3/0x4840 fs/ext4/mballoc.c:4538 ext4_ext_map_blocks+0x2724/0x48f0 fs/ext4/extents.c:4404 ext4_map_blocks+0x8f7/0x1b50 fs/ext4/inode.c:636 _ext4_get_block+0x226/0x6d0 fs/ext4/inode.c:783 ext4_get_block_trans+0x1a6/0x2e0 fs/ext4/inode.c:844 ext4_dio_get_block_unwritten_sync+0x66/0xf0 fs/ext4/inode.c:916 get_more_blocks fs/direct-io.c:716 [inline] do_direct_IO+0x1941/0xc110 fs/direct-io.c:1001 do_blockdev_direct_IO+0xc30/0x9db0 fs/direct-io.c:1331 __blockdev_direct_IO+0x9d/0xc6 fs/direct-io.c:1417 ext4_direct_IO_write fs/ext4/inode.c:3774 [inline] ext4_direct_IO+0xbe6/0x2230 fs/ext4/inode.c:3901 generic_file_direct_write+0x275/0x4b0 mm/filemap.c:3043 __generic_file_write_iter+0x2ff/0x630 mm/filemap.c:3222 ext4_file_write_iter+0x390/0x1420 fs/ext4/file.c:266 call_write_iter include/linux/fs.h:1857 [inline] do_iter_readv_writev+0x8b0/0xa80 fs/read_write.c:680 do_iter_write+0x185/0x5f0 fs/read_write.c:959 vfs_iter_write+0x77/0xb0 fs/read_write.c:972 iter_file_splice_write+0x90d/0x1050 fs/splice.c:749 do_splice_from fs/splice.c:851 [inline] direct_splice_actor+0x128/0x190 fs/splice.c:1023 splice_direct_to_actor+0x3ad/0x9d0 fs/splice.c:978 do_splice_direct+0x2d4/0x420 fs/splice.c:1066 do_sendfile+0x62a/0xe20 fs/read_write.c:1439 __do_sys_sendfile64 fs/read_write.c:1494 [inline] __se_sys_sendfile64 fs/read_write.c:1486 [inline] __x64_sys_sendfile64+0x15d/0x250 fs/read_write.c:1486 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457679 Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f2488ac9c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000457679 RDX: 0000000020000040 RSI: 0000000000000004 RDI: 0000000000000003 RBP: 000000000072c0e0 R08: 0000000000000000 R09: 0000000000000000 R10: 00008000fffffffe R11: 0000000000000246 R12: 00007f2488aca6d4 R13: 00000000004c3e2b R14: 00000000004d6c40 R15: 00000000ffffffff Kernel Offset: disabled Rebooting in 86400 seconds..