Kernel panic - not syncing: corrupted stack end detected inside scheduler
CPU: 1 PID: 31269 Comm: syz-executor0 Not tainted 4.20.0-rc6+ #373
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
 preempt_schedule_common+0x1f/0xe0 kernel/sched/core.c:3596
 preempt_schedule+0x4d/0x60 kernel/sched/core.c:3622
 ___preempt_schedule+0x16/0x18
 __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
 _raw_spin_unlock_irq+0x75/0x80 kernel/locking/spinlock.c:192
 spin_unlock_irq include/linux/spinlock.h:379 [inline]
 shrink_inactive_list+0x741/0x1c60 mm/vmscan.c:1958
 shrink_list mm/vmscan.c:2275 [inline]
 shrink_node_memcg+0x78b/0x18f0 mm/vmscan.c:2540
 shrink_node+0x3bc/0x16b0 mm/vmscan.c:2755
 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
 mem_cgroup_try_charge_delay+0x1d/0xa0 mm/memcontrol.c:5905
 shmem_getpage_gfp+0x186b/0x4840 mm/shmem.c:1788
 shmem_fault+0x25f/0x960 mm/shmem.c:1986
 __do_fault+0x100/0x6b0 mm/memory.c:2996
 do_shared_fault mm/memory.c:3463 [inline]
 do_fault mm/memory.c:3538 [inline]
 handle_pte_fault mm/memory.c:3765 [inline]
 __handle_mm_fault+0x3cac/0x5be0 mm/memory.c:3889
 handle_mm_fault+0x54f/0xc70 mm/memory.c:3926
 faultin_page mm/gup.c:535 [inline]
 __get_user_pages+0xa3d/0x1ea0 mm/gup.c:738
 __get_user_pages_locked mm/gup.c:914 [inline]
 get_user_pages_unlocked+0x2fc/0x5d0 mm/gup.c:1037
 get_user_pages_fast+0x322/0x450 mm/gup.c:1887
 iov_iter_get_pages+0x2fa/0x12a0 lib/iov_iter.c:1266
 dio_refill_pages fs/direct-io.c:170 [inline]
 dio_get_page fs/direct-io.c:214 [inline]
 do_direct_IO+0x3b67/0xc110 fs/direct-io.c:980
 do_blockdev_direct_IO+0xc30/0x9db0 fs/direct-io.c:1331
 __blockdev_direct_IO+0x9d/0xc6 fs/direct-io.c:1417
 ext4_direct_IO_read fs/ext4/inode.c:3867 [inline]
 ext4_direct_IO+0x1156/0x2230 fs/ext4/inode.c:3899
 generic_file_read_iter+0x4d7/0x2d70 mm/filemap.c:2268
 ext4_file_read_iter+0x18b/0x3c0 fs/ext4/file.c:77
 call_read_iter include/linux/fs.h:1851 [inline]
 do_iter_readv_writev+0x77c/0xa80 fs/read_write.c:678
 do_iter_read+0x26e/0x650 fs/read_write.c:922
 vfs_readv+0x175/0x1c0 fs/read_write.c:986
 do_preadv+0x1cc/0x280 fs/read_write.c:1070
 __do_sys_preadv fs/read_write.c:1120 [inline]
 __se_sys_preadv fs/read_write.c:1115 [inline]
 __x64_sys_preadv+0x9a/0xf0 fs/read_write.c:1115
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457659
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:00007f9212ae0c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000127
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000457659
RDX: 1000000000000212 RSI: 00000000200075c0 RDI: 0000000000000006
RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9212ae16d4
R13: 00000000004c39bb R14: 00000000004d63c8 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..