BUG: Bad page map in process syz-executor.2  pte:ffff8881dd6cb1c0 pmd:1e50bb067
addr:00007fde0e639000 vm_flags:00100073 anon_vma:ffff8881ebcdc3f0 mapping:0000000000000000 index:7fde0e639
file:(null) fault:0x0 mmap:0x0 readpage:0x0
CPU: 0 PID: 1179 Comm: syz-executor.2 Not tainted 5.4.274-syzkaller-00016-gdd432c37afcd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1d8/0x241 lib/dump_stack.c:118
 print_bad_pte+0x511/0x530 mm/memory.c:560
 vm_normal_page+0x135/0x1d0 mm/memory.c:649
 zap_pte_range mm/memory.c:1078 [inline]
 zap_pmd_range mm/memory.c:1222 [inline]
 zap_pud_range mm/memory.c:1251 [inline]
 zap_p4d_range mm/memory.c:1272 [inline]
 unmap_page_range+0xc00/0x2620 mm/memory.c:1293
 unmap_single_vma mm/memory.c:1338 [inline]
 unmap_vmas+0x355/0x4b0 mm/memory.c:1370
 exit_mmap+0x2bc/0x520 mm/mmap.c:3191
 __mmput+0x8e/0x2c0 kernel/fork.c:1101
 exit_mm kernel/exit.c:536 [inline]
 do_exit+0xc08/0x2bc0 kernel/exit.c:846
 do_group_exit+0x138/0x300 kernel/exit.c:982
 get_signal+0xdb1/0x1440 kernel/signal.c:2735
 do_signal+0xb0/0x11f0 arch/x86/kernel/signal.c:809
 exit_to_usermode_loop+0xc0/0x1a0 arch/x86/entry/common.c:159
 prepare_exit_to_usermode+0x199/0x200 arch/x86/entry/common.c:194
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
RIP: 0033:0x7fde0da3af69
Code: Bad RIP value.
RSP: 002b:00007fde0cdb5178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fde0db71f88 RCX: 00007fde0da3af69
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fde0db71f88
RBP: 00007fde0db71f80 R08: 00007fde0cdb56c0 R09: 00007fde0cdb56c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fde0db71f8c
R13: 000000000000000b R14: 00007fff8a28bf50 R15: 00007fff8a28c038