------------[ cut here ]------------ WARNING: CPU: 1 PID: 15799 at fs/fuse/file.c:1833 fuse_write_file_get fs/fuse/file.c:1833 [inline] WARNING: CPU: 1 PID: 15799 at fs/fuse/file.c:1833 fuse_write_file_get fs/fuse/file.c:1830 [inline] WARNING: CPU: 1 PID: 15799 at fs/fuse/file.c:1833 fuse_writepage_locked+0xa84/0xd40 fs/fuse/file.c:1918 Modules linked in: CPU: 1 PID: 15799 Comm: syz-executor.1 Not tainted 5.16.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:fuse_write_file_get fs/fuse/file.c:1833 [inline] RIP: 0010:fuse_write_file_get fs/fuse/file.c:1830 [inline] RIP: 0010:fuse_writepage_locked+0xa84/0xd40 fs/fuse/file.c:1918 Code: 20 5b 5d 41 5c 41 5d 41 5e 41 5f c3 41 bc f4 ff ff ff e9 2d ff ff ff e8 8a dd c6 fe 48 8b 3c 24 e8 b1 fe a3 06 e8 7c dd c6 fe <0f> 0b 49 8d be c8 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa RSP: 0018:ffffc9000bd2f5d0 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffff888031968b88 RCX: ffffc9000d097000 RDX: 0000000000040000 RSI: ffffffff82b10a64 RDI: 0000000000000001 RBP: ffffea0000267f80 R08: 0000000000000000 R09: ffff888031968ca3 R10: ffffed100632d194 R11: 000000000000001f R12: ffff8880319686c0 R13: ffffea0001092c40 R14: ffff8880995f3c00 R15: ffff888077879800 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0063) knlGS:00000000f4559b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007fa04c541000 CR3: 0000000076732000 CR4: 00000000003526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: fuse_writepage+0x104/0x160 fs/fuse/file.c:1976 writeout mm/migrate.c:826 [inline] fallback_migrate_page mm/migrate.c:850 [inline] move_to_new_page+0x7ea/0xf00 mm/migrate.c:901 __unmap_and_move mm/migrate.c:1063 [inline] unmap_and_move mm/migrate.c:1204 [inline] migrate_pages+0x27f5/0x3810 mm/migrate.c:1481 compact_zone+0x1abb/0x3860 mm/compaction.c:2399 compact_node+0x129/0x1f0 mm/compaction.c:2683 compact_nodes mm/compaction.c:2699 [inline] sysctl_compaction_handler+0x10e/0x160 mm/compaction.c:2741 proc_sys_call_handler+0x437/0x620 fs/proc/proc_sysctl.c:586 call_write_iter include/linux/fs.h:2162 [inline] new_sync_write+0x429/0x660 fs/read_write.c:503 vfs_write+0x7cd/0xae0 fs/read_write.c:590 ksys_write+0x12d/0x250 fs/read_write.c:643 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c RIP: 0023:0xf6f5f549 Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f45595fc EFLAGS: 00000296 ORIG_RAX: 0000000000000004 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ---------------- Code disassembly (best guess): 0: 03 74 c0 01 add 0x1(%rax,%rax,8),%esi 4: 10 05 03 74 b8 01 adc %al,0x1b87403(%rip) # 0x1b8740d a: 10 06 adc %al,(%rsi) c: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 10: 10 07 adc %al,(%rdi) 12: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi 16: 10 08 adc %cl,(%rax) 18: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1c: 00 00 add %al,(%rax) 1e: 00 00 add %al,(%rax) 20: 00 51 52 add %dl,0x52(%rcx) 23: 55 push %rbp 24: 89 e5 mov %esp,%ebp 26: 0f 34 sysenter 28: cd 80 int $0x80 * 2a: 5d pop %rbp <-- trapping instruction 2b: 5a pop %rdx 2c: 59 pop %rcx 2d: c3 retq 2e: 90 nop 2f: 90 nop 30: 90 nop 31: 90 nop 32: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 39: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi