vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 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:871! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 6476 Comm: syz.0.208 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:__filemap_add_folio+0x11ad/0x12f0 mm/filemap.c:870 Code: c7 c7 ff 4c 89 e7 48 c7 c6 a0 68 74 8b e8 ab 45 2f ff 90 0f 0b e8 e3 c7 c7 ff 4c 89 e7 48 c7 c6 80 5f 74 8b e8 94 45 2f ff 90 <0f> 0b e8 cc c7 c7 ff 4c 89 e7 48 c7 c6 a0 68 74 8b e8 7d 45 2f ff RSP: 0018:ffffc9000ba372c0 EFLAGS: 00010246 RAX: 84ff527c81186800 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000007 RSI: ffffffff8d8337d1 RDI: 00000000ffffffff RBP: ffffc9000ba37428 R08: ffffffff8f9e8177 R09: 1ffffffff1f3d02e R10: dffffc0000000000 R11: fffffbfff1f3d02f R12: ffffea000083ea40 R13: dffffc0000000000 R14: ffffea000083ea48 R15: 0000000000000002 FS: 00007fe38d5f36c0(0000) GS:ffff888125def000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c0080c4000 CR3: 00000000240d8000 CR4: 00000000003526f0 Call Trace: filemap_add_folio+0x26d/0x540 mm/filemap.c:978 ra_alloc_folio mm/readahead.c:453 [inline] page_cache_ra_order+0x6be/0xe70 mm/readahead.c:512 filemap_get_pages+0x468/0x1df0 mm/filemap.c:2644 filemap_splice_read+0x581/0xc60 mm/filemap.c:3033 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: 0033:0x7fe38c78efc9 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:00007fe38d5f3038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007fe38c9e5fa0 RCX: 00007fe38c78efc9 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004 RBP: 00007fe38c811f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000020fffe82 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fe38c9e6038 R14: 00007fe38c9e5fa0 R15: 00007ffd07b8da08 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__filemap_add_folio+0x11ad/0x12f0 mm/filemap.c:870 Code: c7 c7 ff 4c 89 e7 48 c7 c6 a0 68 74 8b e8 ab 45 2f ff 90 0f 0b e8 e3 c7 c7 ff 4c 89 e7 48 c7 c6 80 5f 74 8b e8 94 45 2f ff 90 <0f> 0b e8 cc c7 c7 ff 4c 89 e7 48 c7 c6 a0 68 74 8b e8 7d 45 2f ff RSP: 0018:ffffc9000ba372c0 EFLAGS: 00010246 RAX: 84ff527c81186800 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000007 RSI: ffffffff8d8337d1 RDI: 00000000ffffffff RBP: ffffc9000ba37428 R08: ffffffff8f9e8177 R09: 1ffffffff1f3d02e R10: dffffc0000000000 R11: fffffbfff1f3d02f R12: ffffea000083ea40 R13: dffffc0000000000 R14: ffffea000083ea48 R15: 0000000000000002 FS: 00007fe38d5f36c0(0000) GS:ffff888125cef000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555875985c8 CR3: 00000000240d8000 CR4: 00000000003526f0