CFI failure at __traceiter_mm_lru_insertion+0x75/0xc0 include/trace/events/pagemap.h:28 (target: tp_stub_func+0x0/0x10; expected type: 0x1afd09c9) invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 853 Comm: syz.0.156 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:__traceiter_mm_lru_insertion+0x75/0xc0 include/trace/events/pagemap.h:28 Code: 49 8d 7e 08 48 89 f8 48 c1 e8 03 42 80 3c 20 00 74 05 e8 9e d0 16 00 49 8b 7f 08 48 89 de 41 ba 37 f6 02 e5 45 03 55 fc 74 02 <0f> 0b 41 ff d5 49 83 c6 18 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 74 RSP: 0018:ffffc90000daec98 EFLAGS: 00010093 RAX: 1ffff11022a37343 RBX: ffffea0004d4c380 RCX: ffff88810fff6540 RDX: 0000000000000000 RSI: ffffea0004d4c380 RDI: ffffc9000117e000 RBP: ffffc90000daecc0 R08: dffffc0000000000 R09: fffffbfff0ee4bb6 R10: 000000008a435d43 R11: 1ffffffff0ee4bb5 R12: dffffc0000000000 R13: ffffffff817125b0 R14: ffff8881151b9a10 R15: ffff8881151b9a10 FS: 00007fb941d9e6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000100000000 CR3: 000000010d710000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: trace_mm_lru_insertion include/trace/events/pagemap.h:28 [inline] lru_add_fn+0x616/0x660 mm/swap.c:221 folio_batch_move_lru+0x282/0x470 mm/swap.c:238 folio_batch_add_and_move mm/swap.c:255 [inline] folio_add_lru+0x21c/0x390 mm/swap.c:526 shmem_get_folio_gfp+0x13c5/0x2230 mm/shmem.c:1990 shmem_get_folio mm/shmem.c:2086 [inline] shmem_write_begin+0xea/0x2c0 mm/shmem.c:2571 generic_perform_write+0x2f6/0x6d0 mm/filemap.c:3882 __generic_file_write_iter+0x227/0x580 mm/filemap.c:4011 generic_file_write_iter+0xae/0x310 mm/filemap.c:4043 __kernel_write_iter+0x27e/0x640 fs/read_write.c:517 dump_emit_page fs/coredump.c:886 [inline] dump_user_range+0x3da/0x600 fs/coredump.c:913 elf_core_dump+0x29e7/0x2ef0 fs/binfmt_elf.c:2354 do_coredump+0x1557/0x21b0 fs/coredump.c:760 get_signal+0x11db/0x1520 kernel/signal.c:2875 arch_do_signal_or_restart+0xb0/0x1030 arch/x86/kernel/signal.c:871 exit_to_user_mode_loop+0x7a/0xb0 kernel/entry/common.c:174 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:210 irqentry_exit_to_user_mode+0x9/0x10 kernel/entry/common.c:316 irqentry_exit+0x12/0x40 kernel/entry/common.c:419 exc_page_fault+0x5e/0xb0 arch/x86/mm/fault.c:1525 asm_exc_page_fault+0x27/0x30 arch/x86/include/asm/idtentry.h:608 RIP: 0033:0xc00000011 Code: Unable to access opcode bytes at 0xbffffffe7. RSP: 002b:00002000000000c8 EFLAGS: 00010217 RAX: 0000000000000000 RBX: 00007fb9411d6090 RCX: 00007fb940f8eba9 RDX: 0000200000000100 RSI: 00002000000000c0 RDI: 0000000003000000 RBP: 00007fb941011e19 R08: 0000000000000000 R09: 0000000000000000 R10: 00002000000001c0 R11: 0000000000000206 R12: 0000000000000000 R13: 00007fb9411d6128 R14: 00007fb9411d6090 R15: 00007ffd528faa58 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__traceiter_mm_lru_insertion+0x75/0xc0 include/trace/events/pagemap.h:28 Code: 49 8d 7e 08 48 89 f8 48 c1 e8 03 42 80 3c 20 00 74 05 e8 9e d0 16 00 49 8b 7f 08 48 89 de 41 ba 37 f6 02 e5 45 03 55 fc 74 02 <0f> 0b 41 ff d5 49 83 c6 18 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 74 RSP: 0018:ffffc90000daec98 EFLAGS: 00010093 RAX: 1ffff11022a37343 RBX: ffffea0004d4c380 RCX: ffff88810fff6540 RDX: 0000000000000000 RSI: ffffea0004d4c380 RDI: ffffc9000117e000 RBP: ffffc90000daecc0 R08: dffffc0000000000 R09: fffffbfff0ee4bb6 R10: 000000008a435d43 R11: 1ffffffff0ee4bb5 R12: dffffc0000000000 R13: ffffffff817125b0 R14: ffff8881151b9a10 R15: ffff8881151b9a10 FS: 00007fb941d9e6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000bffffffe7 CR3: 000000010d710000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600