BUG: Bad page map in process syz.8.384  pte:ffff8881dffef1c0 pmd:1cd2bb067
addr:00007f3d0f239000 vm_flags:00100073 anon_vma:ffff8881eb5ecf18 mapping:0000000000000000 index:7f3d0f239
file:(null) fault:0x0 mmap:0x0 readpage:0x0
CPU: 0 PID: 1893 Comm: syz.8.384 Not tainted 5.4.290-syzkaller-00017-g6b07fcd94a6a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
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:538 [inline]
 do_exit+0xc08/0x2bc0 kernel/exit.c:848
 __do_sys_exit kernel/exit.c:953 [inline]
 __se_sys_exit kernel/exit.c:951 [inline]
 __x64_sys_exit+0x3c/0x40 kernel/exit.c:951
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
RIP: 0033:0x7f3d0e525169
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3d0cb8efe8 EFLAGS: 00000246 ORIG_RAX: 000000000000003c
RAX: ffffffffffffffda RBX: 00007f3d0e73dfa0 RCX: 00007f3d0e525169
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f3d0e5a62a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f3d0e73dfa0 R15: 00007ffc70e310a8