watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.0:23562]
Modules linked in:
irq event stamp: 222
hardirqs last  enabled at (221): [<ffff800014586d28>] exit_to_kernel_mode+0x38/0x230 arch/arm64/kernel/entry-common.c:71
hardirqs last disabled at (222): [<ffff800014586ce0>] enter_el1_irq_or_nmi+0x10/0x20 arch/arm64/kernel/entry-common.c:113
softirqs last  enabled at (146): [<ffff8000100109a4>] _stext+0x9a4/0x1050
softirqs last disabled at (11): [<ffff800010162530>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (11): [<ffff800010162530>] invoke_softirq kernel/softirq.c:439 [inline]
softirqs last disabled at (11): [<ffff800010162530>] __irq_exit_rcu+0x470/0x520 kernel/softirq.c:636
CPU: 0 PID: 23562 Comm: syz-executor.0 Not tainted 5.14.0-rc5-syzkaller-00058-gf8fbb47c6e86 #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:184 [inline]
lr : kernel_init_free_pages.part.0+0x6c/0x17c mm/page_alloc.c:1286
sp : ffff80001a237320
x29: ffff80001a237320 x28: 0000000000000000 x27: ffff00007fc11ec0
x26: ffff00000bc6c938 x25: ffff60000178d927 x24: 00000000000014b8
x23: ffff00000bc6b480 x22: fffffc0000171340 x21: ffff800015707a80
x20: dfff800000000000 x19: fffffc0000171300 x18: ffff00006aa31bc8
x17: 0000000000000000 x16: 0000000000000000 x15: ffff00006aa31bfc
x14: 1ffff00003446e2e x13: 0000000000000014 x12: ffff7f800002e267
x11: 1fffff800002e266 x10: ffff7f800002e266 x9 : 0000000000000000
x8 : ffff600000b89a00 x7 : 0000000000000000 x6 : 000000000000003f
x5 : 0000000000000040 x4 : 1ffff0000304df78 x3 : 1fffe0000178d691
x2 : 0000000000000004 x1 : 0000000000000040 x0 : ffff000005c4c9c0
Call trace:
 clear_page+0x14/0x28 arch/arm64/lib/clear_page.S:21
 kernel_init_free_pages mm/page_alloc.c:1283 [inline]
 post_alloc_hook+0x1ac/0x25c mm/page_alloc.c:2426
 prep_new_page mm/page_alloc.c:2436 [inline]
 get_page_from_freelist+0x1840/0x2310 mm/page_alloc.c:4169
 __alloc_pages+0x1a8/0x2234 mm/page_alloc.c:5391
 alloc_pages_vma+0xb4/0x4dc mm/mempolicy.c:2208
 wp_page_copy+0x194/0x1600 mm/memory.c:3003
 do_wp_page+0x1d8/0xbbc mm/memory.c:3313
 handle_pte_fault mm/memory.c:4576 [inline]
 __handle_mm_fault+0x10a0/0x25e4 mm/memory.c:4693
 handle_mm_fault+0x1dc/0x4ec mm/memory.c:4791
 __do_page_fault arch/arm64/mm/fault.c:512 [inline]
 do_page_fault+0x230/0x8c0 arch/arm64/mm/fault.c:612
 do_mem_abort+0x64/0x1c0 arch/arm64/mm/fault.c:826
 el1_abort+0x3c/0x60 arch/arm64/kernel/entry-common.c:243
 el1h_64_sync_handler+0xb4/0xd0 arch/arm64/kernel/entry-common.c:318
 el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:569
 schedule_tail+0x15c/0x1b0 kernel/sched/core.c:4621
 ret_from_fork+0x4/0x18 arch/arm64/kernel/entry.S:779