__vm_munmap+0x207/0x380 mm/vma.c:3201
 __do_sys_munmap mm/mmap.c:1077 [inline]
 __se_sys_munmap mm/mmap.c:1074 [inline]
 __x64_sys_munmap+0x60/0x70 mm/mmap.c:1074
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
------------[ cut here ]------------
kernel BUG at mm/filemap.c:1531!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 6937 Comm: syz.2.159 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:folio_end_read+0x22e/0x230 mm/filemap.c:1531
Code: 54 c7 ff 48 89 df 48 c7 c6 c0 84 74 8b e8 1a 93 2d ff 90 0f 0b e8 d2 54 c7 ff 48 89 df 48 c7 c6 20 7d 74 8b e8 03 93 2d ff 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa
RSP: 0018:ffffc90004d0ee88 EFLAGS: 00010246
RAX: 84cc83fcd3c68d00 RBX: ffffea0000d31dc0 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8d78f926 RDI: 00000000ffffffff
RBP: 0000000000000001 R08: ffffffff8f7deb77 R09: 1ffffffff1efbd6e
R10: dffffc0000000000 R11: fffffbfff1efbd6f R12: 1ffffd40001a63b9
R13: 1ffffd40001a63b8 R14: ffffea0000d31dc8 R15: 0000000000000008
FS:  00007f758be1d6c0(0000) GS:ffff888125fb9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3456b8 CR3: 000000007e73e000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 iomap_read_folio+0x373/0x580 fs/iomap/buffered-io.c:578
 iomap_bio_read_folio include/linux/iomap.h:598 [inline]
 gfs2_read_folio+0x168/0x9f0 fs/gfs2/aops.c:427
 filemap_read_folio+0x117/0x380 mm/filemap.c:2496
 filemap_update_page mm/filemap.c:2583 [inline]
 filemap_get_pages+0x1692/0x1df0 mm/filemap.c:2713
 filemap_read+0x3f6/0x11a0 mm/filemap.c:2800
 gfs2_file_read_iter+0x7e8/0xc60 fs/gfs2/file.c:989
 copy_splice_read+0x5d4/0xa50 fs/splice.c:363
 do_splice_read fs/splice.c:982 [inline]
 splice_direct_to_actor+0x4a9/0xcc0 fs/splice.c:1086
 do_splice_direct_actor fs/splice.c:1204 [inline]
 do_splice_direct+0x181/0x270 fs/splice.c:1230
 do_sendfile+0x4da/0x7e0 fs/read_write.c:1370
 __do_sys_sendfile64 fs/read_write.c:1431 [inline]
 __se_sys_sendfile64+0x13e/0x190 fs/read_write.c:1417
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f758af8f749
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:00007f758be1d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f758b1e5fa0 RCX: 00007f758af8f749
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004
RBP: 00007f758b013f91 R08: 0000000000000000 R09: 0000000000000000
R10: 000000007ffff004 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f758b1e6038 R14: 00007f758b1e5fa0 R15: 00007ffe75030f98
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:folio_end_read+0x22e/0x230 mm/filemap.c:1531
Code: 54 c7 ff 48 89 df 48 c7 c6 c0 84 74 8b e8 1a 93 2d ff 90 0f 0b e8 d2 54 c7 ff 48 89 df 48 c7 c6 20 7d 74 8b e8 03 93 2d ff 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa
RSP: 0018:ffffc90004d0ee88 EFLAGS: 00010246
RAX: 84cc83fcd3c68d00 RBX: ffffea0000d31dc0 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8d78f926 RDI: 00000000ffffffff
RBP: 0000000000000001 R08: ffffffff8f7deb77 R09: 1ffffffff1efbd6e
R10: dffffc0000000000 R11: fffffbfff1efbd6f R12: 1ffffd40001a63b9
R13: 1ffffd40001a63b8 R14: ffffea0000d31dc8 R15: 0000000000000008
FS:  00007f758be1d6c0(0000) GS:ffff888125eb9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000559ee53c5510 CR3: 000000007e73e000 CR4: 00000000003526f0