__vm_munmap+0x196/0x390 mm/vma.c:3247
 __do_sys_munmap mm/mmap.c:1077 [inline]
 __se_sys_munmap mm/mmap.c:1074 [inline]
 __x64_sys_munmap+0x59/0x80 mm/mmap.c:1074
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
------------[ cut here ]------------
kernel BUG at mm/filemap.c:858!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 22664 Comm: syz.9.7690 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:__filemap_add_folio+0xfcf/0x1280 mm/filemap.c:858
Code: 5e c5 ff 48 c7 c6 c0 2f bd 8b 4c 89 ef e8 d9 3f 12 00 90 0f 0b e8 51 5e c5 ff 48 c7 c6 20 30 bd 8b 4c 89 ef e8 c2 3f 12 00 90 <0f> 0b e8 3a 5e c5 ff 90 0f 0b 90 e9 4b fe ff ff e8 2c 5e c5 ff 90
RSP: 0018:ffffc9000de7f438 EFLAGS: 00010287
RAX: 000000000004a8d7 RBX: 0000000000112cc0 RCX: ffffc9003b204000
RDX: 0000000000080000 RSI: ffffffff82557ac8 RDI: ffff8880660fa904
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000002
R13: ffffea00010f5bc0 R14: 0000000000000000 R15: 1ffff92001bcfeb1
FS:  00007fde558f76c0(0000) GS:ffff8880d6352000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000020c0 CR3: 00000000597e5000 CR4: 0000000000352ef0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083
DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 filemap_add_folio+0x1d8/0x690 mm/filemap.c:966
 ra_alloc_folio mm/readahead.c:456 [inline]
 page_cache_ra_order+0x614/0xf30 mm/readahead.c:515
 page_cache_sync_ra+0x6e0/0xb10 mm/readahead.c:629
 filemap_get_pages+0x6cf/0x2050 mm/filemap.c:2690
 filemap_splice_read+0x46e/0xc80 mm/filemap.c:3079
 do_splice_read fs/splice.c:982 [inline]
 do_splice_read+0x285/0x370 fs/splice.c:956
 splice_direct_to_actor+0x2a1/0xa30 fs/splice.c:1086
 do_splice_direct_actor fs/splice.c:1204 [inline]
 do_splice_direct+0x174/0x240 fs/splice.c:1230
 do_sendfile+0xadc/0xe20 fs/read_write.c:1372
 __do_sys_sendfile64 fs/read_write.c:1433 [inline]
 __se_sys_sendfile64 fs/read_write.c:1419 [inline]
 __x64_sys_sendfile64+0x1d8/0x220 fs/read_write.c:1419
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fde5499bf79
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fde558f7028 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007fde54c15fa0 RCX: 00007fde5499bf79
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003
RBP: 00007fde54a327e0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000002000fb R11: 0000000000000246 R12: 0000000000000000
R13: 00007fde54c16038 R14: 00007fde54c15fa0 R15: 00007fffdfc32868
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0xfcf/0x1280 mm/filemap.c:858
Code: 5e c5 ff 48 c7 c6 c0 2f bd 8b 4c 89 ef e8 d9 3f 12 00 90 0f 0b e8 51 5e c5 ff 48 c7 c6 20 30 bd 8b 4c 89 ef e8 c2 3f 12 00 90 <0f> 0b e8 3a 5e c5 ff 90 0f 0b 90 e9 4b fe ff ff e8 2c 5e c5 ff 90
RSP: 0018:ffffc9000de7f438 EFLAGS: 00010287
RAX: 000000000004a8d7 RBX: 0000000000112cc0 RCX: ffffc9003b204000
RDX: 0000000000080000 RSI: ffffffff82557ac8 RDI: ffff8880660fa904
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000002
R13: ffffea00010f5bc0 R14: 0000000000000000 R15: 1ffff92001bcfeb1
FS:  00007fde558f76c0(0000) GS:ffff8880d6352000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f69d493cff8 CR3: 00000000597e5000 CR4: 0000000000352ef0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083
DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400