watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.0:18430]
Modules linked in:
irq event stamp: 1880
hardirqs last  enabled at (1879): [<ffff8000145e6548>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:81 [inline]
hardirqs last  enabled at (1879): [<ffff8000145e6548>] exit_to_kernel_mode+0x38/0x230 arch/arm64/kernel/entry-common.c:91
hardirqs last disabled at (1880): [<ffff8000145e6500>] enter_el1_irq_or_nmi+0x10/0x20 arch/arm64/kernel/entry-common.c:227
softirqs last  enabled at (1798): [<ffff800010010964>] _stext+0x964/0xff8
softirqs last disabled at (1697): [<ffff800010160998>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (1697): [<ffff800010160998>] invoke_softirq kernel/softirq.c:439 [inline]
softirqs last disabled at (1697): [<ffff800010160998>] __irq_exit_rcu+0x208/0x4f0 kernel/softirq.c:636
CPU: 0 PID: 18430 Comm: syz-executor.0 Not tainted 5.14.0-syzkaller-08100-g7ba88a2a09f4 #0
Hardware name: linux,dummy-virt (DT)
pstate: 00000005 (nzcv daif -PAN -UAO -TCO -DIT -SSBS 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 : ffff80001c6f7490
x29: ffff80001c6f7490 x28: 0000000000000000 x27: ffff00007fc11ec0
x26: ffff00000bde94c0 x25: ffff6000017bd298 x24: 00000000000014c0
x23: ffff00000bde8000 x22: fffffc0000173340 x21: ffff800015793238
x20: dfff800000000000 x19: fffffc0000173300 x18: 0000000000000000
x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000
x14: 1ffff000038dee5c x13: 0000000000000013 x12: ffff7f800002e667
x11: 1fffff800002e666 x10: ffff7f800002e666 x9 : 0000000000000000
x8 : ffff600000b99a00 x7 : 0000000000000000 x6 : 000000000000003f
x5 : 0000000000000040 x4 : 1ffff00003060798 x3 : 1fffe000017bd001
x2 : 0000000000000004 x1 : 0000000000000040 x0 : ffff000005ccca80
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+0x184c/0x231c mm/page_alloc.c:4168
 __alloc_pages+0x1a8/0x21d0 mm/page_alloc.c:5390
 alloc_pages_vma+0xb4/0x4dc mm/mempolicy.c:2208
 wp_page_copy+0x194/0x16b4 mm/memory.c:3003
 do_wp_page+0x1d8/0xbec mm/memory.c:3313
 handle_pte_fault mm/memory.c:4576 [inline]
 __handle_mm_fault+0x10a4/0x26a0 mm/memory.c:4693
 handle_mm_fault+0x1dc/0x4f0 mm/memory.c:4791
 __do_page_fault arch/arm64/mm/fault.c:499 [inline]
 do_page_fault+0x230/0x8c0 arch/arm64/mm/fault.c:599
 do_mem_abort+0x64/0x1c0 arch/arm64/mm/fault.c:813
 el0_da+0x7c/0x2b0 arch/arm64/kernel/entry-common.c:481
 el0t_64_sync_handler+0x168/0x1b0 arch/arm64/kernel/entry-common.c:616
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:572