BUG: Bad page map in process syz.2.689  pte:ffff8881ee1ecd00 pmd:1e2793067
addr:00007f62a8c39000 vm_flags:00000875 anon_vma:0000000000000000 mapping:ffff8881e9f6bb38 index:eb
file:syz-executor fault:ext4_filemap_fault mmap:ext4_file_mmap readpage:ext4_readpage
CPU: 0 PID: 2716 Comm: syz.2.689 Not tainted 5.4.290-syzkaller-00017-g6b07fcd94a6a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
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:538 [inline]
 do_exit+0xc08/0x2bc0 kernel/exit.c:848
 do_group_exit+0x138/0x300 kernel/exit.c:984
 __do_sys_exit_group kernel/exit.c:995 [inline]
 __se_sys_exit_group kernel/exit.c:993 [inline]
 __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:993
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
RIP: 0033:0x7f62a8cdb169
Code: Bad RIP value.
RSP: 002b:00007ffce7ebcf58 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f62a8cdb169
RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffce7ebcfbc R08: 0000000ae7ebd04f R09: 00000000000927c0
R10: 00000000000000b4 R11: 0000000000000246 R12: 0000000000000087
R13: 00000000000927c0 R14: 000000000000e3ef R15: 00007ffce7ebd010