kthread+0x33a/0x430 kernel/kthread.c:389 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 page has been migrated, last migrate reason: compaction ------------[ cut here ]------------ kernel BUG at mm/truncate.c:423! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 2 PID: 5181 Comm: syz-executor.3 Not tainted 6.5.0-rc5-syzkaller-00050-g02aee814d37c #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:truncate_inode_pages_range+0xd9d/0xfb0 mm/truncate.c:423 Code: 4c 89 f7 e8 25 30 ce ff 4c 39 f3 0f 82 37 f8 ff ff e9 9f f8 ff ff e8 02 35 ce ff 48 c7 c6 c0 39 77 8a 4c 89 e7 e8 73 da 0a 00 <0f> 0b e8 ec 34 ce ff 48 c7 c6 60 3a 77 8a 48 89 ef e8 5d da 0a 00 RSP: 0018:ffffc90003f079f0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff88801f200000 RSI: ffffffff81b7d3ad RDI: ffffffff8ac81120 RBP: 0000000000000000 R08: 0000000000000000 R09: fffffbfff1d57382 R10: ffffffff8eab9c17 R11: 0000000000000000 R12: ffffea0000a76000 R13: ffffc90003f07b28 R14: ffffc90003f07b30 R15: 0000000000000694 FS: 0000000000000000(0000) GS:ffff88802c800000(0063) knlGS:000000005842e400 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 000000c001cca200 CR3: 0000000074639000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: evict+0x533/0x6b0 fs/inode.c:667 dispose_list+0x117/0x1e0 fs/inode.c:698 evict_inodes+0x34f/0x450 fs/inode.c:748 generic_shutdown_super+0xaf/0x480 fs/super.c:478 kill_block_super+0x64/0xb0 fs/super.c:1417 deactivate_locked_super+0x9a/0x170 fs/super.c:330 deactivate_super+0xde/0x100 fs/super.c:361 cleanup_mnt+0x222/0x3d0 fs/namespace.c:1254 task_work_run+0x14d/0x240 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop kernel/entry/common.c:171 [inline] exit_to_user_mode_prepare+0x210/0x240 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297 __do_fast_syscall_32+0x6d/0xe0 arch/x86/entry/common.c:181 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x70/0x82 RIP: 0023:0xf7f81579 Code: 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 00 00 00 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:00000000fff34108 EFLAGS: 00000292 ORIG_RAX: 0000000000000034 RAX: 0000000000000000 RBX: 00000000fff341b0 RCX: 000000000000000a RDX: 00000000f7353ff4 RSI: 00000000f72a53bd RDI: 00000000fff35254 RBP: 00000000fff341b0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:truncate_inode_pages_range+0xd9d/0xfb0 mm/truncate.c:423 Code: 4c 89 f7 e8 25 30 ce ff 4c 39 f3 0f 82 37 f8 ff ff e9 9f f8 ff ff e8 02 35 ce ff 48 c7 c6 c0 39 77 8a 4c 89 e7 e8 73 da 0a 00 <0f> 0b e8 ec 34 ce ff 48 c7 c6 60 3a 77 8a 48 89 ef e8 5d da 0a 00 RSP: 0018:ffffc90003f079f0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff88801f200000 RSI: ffffffff81b7d3ad RDI: ffffffff8ac81120 RBP: 0000000000000000 R08: 0000000000000000 R09: fffffbfff1d57382 R10: ffffffff8eab9c17 R11: 0000000000000000 R12: ffffea0000a76000 R13: ffffc90003f07b28 R14: ffffc90003f07b30 R15: 0000000000000694 FS: 0000000000000000(0000) GS:ffff88802c800000(0063) knlGS:000000005842e400 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 000000c001cca200 CR3: 0000000074639000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 10 06 adc %al,(%rsi) 2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 6: 10 07 adc %al,(%rdi) 8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi c: 10 08 adc %cl,(%rax) e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1e: 00 51 52 add %dl,0x52(%rcx) 21: 55 push %rbp 22: 89 e5 mov %esp,%ebp 24: 0f 34 sysenter 26: cd 80 int $0x80 * 28: 5d pop %rbp <-- trapping instruction 29: 5a pop %rdx 2a: 59 pop %rcx 2b: c3 ret 2c: 90 nop 2d: 90 nop 2e: 90 nop 2f: 90 nop 30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi