BUG: Bad page map in process syz.8.2061  pte:ffff8881da8831c0 pmd:1dd1c7067
addr:000000110d239000 vm_flags:000000f9 anon_vma:0000000000000000 mapping:ffff8881e9f287a8 index:1009
file:syz.mwtZp3 fault:ext4_filemap_fault mmap:ext4_file_mmap readpage:ext4_readpage
CPU: 1 PID: 7564 Comm: syz.8.2061 Tainted: G        W         5.4.292-syzkaller-00021-gcd8e74fa0fa3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
 __dump_stack+0x1e/0x20 lib/dump_stack.c:77
 dump_stack+0x15b/0x1b8 lib/dump_stack.c:118
 print_bad_pte+0x584/0x5a0 mm/memory.c:560
 vm_normal_page+0x139/0x1f0 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+0xaf6/0x1b20 mm/memory.c:1293
 unmap_single_vma mm/memory.c:1338 [inline]
 unmap_vmas+0x245/0x340 mm/memory.c:1370
 exit_mmap+0x2bb/0x520 mm/mmap.c:3191
 __mmput+0x92/0x2e0 kernel/fork.c:1101
 mmput+0x47/0x60 kernel/fork.c:1122
 exit_mm kernel/exit.c:538 [inline]
 do_exit+0x99f/0x2660 kernel/exit.c:848
 do_group_exit+0x13e/0x300 kernel/exit.c:984
 get_signal+0xdee/0x13d0 kernel/signal.c:2738
 do_signal+0xad/0xda0 arch/x86/kernel/signal.c:809
 exit_to_usermode_loop+0xc4/0x1b0 arch/x86/entry/common.c:159
 prepare_exit_to_usermode+0x18e/0x1f0 arch/x86/entry/common.c:194
 ret_from_intr+0x1c/0x1c
RIP: 0033:0x532496
Code: Bad RIP value.
RSP: 002b:0000200000000028 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f4ce6920fa0 RCX: 00007f4ce66f9969
RDX: 0000200000000040 RSI: 0000200000000020 RDI: 0000000000800200
RBP: 00007f4ce677bab1 R08: 00002000000000c0 R09: 00002000000000c0
R10: 0000200000000080 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f4ce6920fa0 R15: 00007ffc29acf838
BUG: Bad rss-counter state mm:ffff8881e4a1aac0 type:MM_FILEPAGES val:2