watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.1:4345]
Modules linked in:
irq event stamp: 1752
hardirqs last  enabled at (1751): [<ffff8000143e9608>] exit_to_kernel_mode+0x38/0x230 arch/arm64/kernel/entry-common.c:59
hardirqs last disabled at (1752): [<ffff8000143e9cd0>] enter_el1_irq_or_nmi+0x10/0x20 arch/arm64/kernel/entry-common.c:101
softirqs last  enabled at (1626): [<ffff8000100109e0>] _stext+0x9e0/0x1084
softirqs last disabled at (1555): [<ffff80001015a04c>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (1555): [<ffff80001015a04c>] invoke_softirq kernel/softirq.c:228 [inline]
softirqs last disabled at (1555): [<ffff80001015a04c>] __irq_exit_rcu+0x46c/0x510 kernel/softirq.c:422
CPU: 0 PID: 4345 Comm: syz-executor.1 Not tainted 5.12.0-rc4-syzkaller-00266-gdb24726bfefa #0
Hardware name: linux,dummy-virt (DT)
pstate: 00000005 (nzcv daif -PAN -UAO -TCO BTYPE=--)
pc : clear_page+0x14/0x28 arch/arm64/lib/clear_page.S:23
lr : clear_highpage include/linux/highmem.h:203 [inline]
lr : kernel_init_free_pages+0x74/0x180 mm/page_alloc.c:1212
sp : ffff00000a077630
x29: ffff00000a077630 x28: fffffc0000180f00 
x27: ffff00007fc13ec0 x26: ffff00000a0794b8 
x25: ffff60000140f297 x24: 00000000000014b8 
x23: ffff00000a078000 x22: fffffc0000180f40 
x21: ffff8000154f4300 x20: dfff800000000000 
x19: fffffc0000180f00 x18: 0000000000000000 
x17: 0000000000000000 x16: 0000000000000000 
x15: 0000000000000000 x14: 1fffe0000140ee90 
x13: 0000000000000001 x12: ffff7f80000301e7 
x11: 1fffff80000301e6 x10: ffff7f80000301e6 
x9 : 0000000000000000 x8 : ffff600000c07a00 
x7 : 0000000000000000 x6 : 000000000000003f 
x5 : 0000000000000040 x4 : 1ffff00002fa7b50 
x3 : 1fffe0000140f001 x2 : 0000000000000004 
x1 : 0000000000000040 x0 : ffff00000603cfc0 
Call trace:
 clear_page+0x14/0x28 arch/arm64/lib/clear_page.S:21
 post_alloc_hook+0x130/0x1fc mm/page_alloc.c:2305
 prep_new_page mm/page_alloc.c:2311 [inline]
 get_page_from_freelist+0x2024/0x2a40 mm/page_alloc.c:3951
 __alloc_pages_nodemask+0x2a0/0x24dc mm/page_alloc.c:5001
 alloc_pages_vma+0xb4/0x510 mm/mempolicy.c:2240
 alloc_zeroed_user_highpage_movable include/linux/highmem.h:197 [inline]
 do_anonymous_page mm/memory.c:3548 [inline]
 handle_pte_fault mm/memory.c:4316 [inline]
 __handle_mm_fault+0xc88/0x21d4 mm/memory.c:4453
 handle_mm_fault+0x1cc/0x4dc mm/memory.c:4551
 __do_page_fault arch/arm64/mm/fault.c:507 [inline]
 do_page_fault+0x228/0x880 arch/arm64/mm/fault.c:591
 do_translation_fault+0x1a4/0x210 arch/arm64/mm/fault.c:672
 do_mem_abort+0x64/0x1c0 arch/arm64/mm/fault.c:805
 el0_da+0x3c/0x50 arch/arm64/kernel/entry-common.c:308
 el0_sync_handler+0x168/0x1b0 arch/arm64/kernel/entry-common.c:435
 el0_sync+0x170/0x180 arch/arm64/kernel/entry.S:699