do_splice_from fs/splice.c:938 [inline]
 direct_splice_actor+0xfe/0x160 fs/splice.c:1161
 splice_direct_to_actor+0x5a8/0xcc0 fs/splice.c:1105
 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
------------[ cut here ]------------
kernel BUG at mm/filemap.c:868!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 6146 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:__filemap_add_folio+0x11ad/0x12f0 mm/filemap.c:867
Code: 39 c9 ff 4c 89 e7 48 c7 c6 a0 3e b4 8b e8 7b aa 30 ff 90 0f 0b e8 03 39 c9 ff 4c 89 e7 48 c7 c6 80 35 b4 8b e8 64 aa 30 ff 90 <0f> 0b e8 ec 38 c9 ff 4c 89 e7 48 c7 c6 a0 3e b4 8b e8 4d aa 30 ff
RSP: 0018:ffffc9000390f2c0 EFLAGS: 00010246
RAX: ea7868d7a7d6a700 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8c035860 RDI: 00000000ffffffff
RBP: ffffc9000390f430 R08: ffffffff8fc40337 R09: 1ffffffff1f88066
R10: dffffc0000000000 R11: fffffbfff1f88067 R12: ffffea0001751f40
R13: dffffc0000000000 R14: ffffea0001751f48 R15: 0000000000000002
FS:  000055555cb5b500(0000) GS:ffff8881259ff000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c007be7000 CR3: 000000007daba000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 filemap_add_folio+0xd5/0x270 mm/filemap.c:969
 ra_alloc_folio mm/readahead.c:448 [inline]
 page_cache_ra_order+0x643/0xd40 mm/readahead.c:506
 filemap_get_pages+0x468/0x1de0 mm/filemap.c:2607
 filemap_splice_read+0x581/0xc60 mm/filemap.c:2996
 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: 0033:0x7ff17fb8ebe9
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:00007ffcf26b6058 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007ff17fdb5fa0 RCX: 00007ff17fb8ebe9
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003
RBP: 00007ff17fc11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000fffe82 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff17fdb5fa0 R14: 00007ff17fdb5fa0 R15: 0000000000000004
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0x11ad/0x12f0 mm/filemap.c:867
Code: 39 c9 ff 4c 89 e7 48 c7 c6 a0 3e b4 8b e8 7b aa 30 ff 90 0f 0b e8 03 39 c9 ff 4c 89 e7 48 c7 c6 80 35 b4 8b e8 64 aa 30 ff 90 <0f> 0b e8 ec 38 c9 ff 4c 89 e7 48 c7 c6 a0 3e b4 8b e8 4d aa 30 ff
RSP: 0018:ffffc9000390f2c0 EFLAGS: 00010246
RAX: ea7868d7a7d6a700 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8c035860 RDI: 00000000ffffffff
RBP: ffffc9000390f430 R08: ffffffff8fc40337 R09: 1ffffffff1f88066
R10: dffffc0000000000 R11: fffffbfff1f88067 R12: ffffea0001751f40
R13: dffffc0000000000 R14: ffffea0001751f48 R15: 0000000000000002
FS:  000055555cb5b500(0000) GS:ffff888125aff000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33163fff CR3: 000000007daba000 CR4: 00000000003526f0