tlb_finish_mmu+0xc3/0x1d0 mm/mmu_gather.c:497 vms_clear_ptes+0x42b/0x530 mm/vma.c:1238 vms_clean_up_area mm/vma.c:1250 [inline] __mmap_setup mm/vma.c:2399 [inline] __mmap_region mm/vma.c:2685 [inline] mmap_region+0x95b/0x1d40 mm/vma.c:2781 do_mmap+0xc45/0x10d0 mm/mmap.c:558 vm_mmap_pgoff+0x2a6/0x4d0 mm/util.c:581 ksys_mmap_pgoff+0x51f/0x760 mm/mmap.c:604 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:1531! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 7592 Comm: syz.2.510 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:folio_end_read+0x22e/0x230 mm/filemap.c:1531 Code: 54 c7 ff 48 89 df 48 c7 c6 80 84 74 8b e8 8a 89 2d ff 90 0f 0b e8 92 54 c7 ff 48 89 df 48 c7 c6 e0 7c 74 8b e8 73 89 2d ff 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa RSP: 0018:ffffc90003deec48 EFLAGS: 00010246 RAX: 089b96ef6e8ce300 RBX: ffffea0001b17000 RCX: 0000000000000000 RDX: 0000000000000007 RSI: ffffffff8d78e538 RDI: 00000000ffffffff RBP: 0000000000000001 R08: ffffffff8f7de477 R09: 1ffffffff1efbc8e R10: dffffc0000000000 R11: fffffbfff1efbc8f R12: 1ffffd4000362e01 R13: 1ffffd4000362e00 R14: ffffea0001b17008 R15: 0000000000000008 FS: 00007fed8bdfd6c0(0000) GS:ffff888125fbc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000002600 CR3: 0000000030bae000 CR4: 00000000003526f0 Call Trace: iomap_readahead_iter fs/iomap/buffered-io.c:590 [inline] iomap_readahead+0x3f5/0xbd0 fs/iomap/buffered-io.c:636 iomap_bio_readahead include/linux/iomap.h:609 [inline] xfs_vm_readahead+0x9f/0xe0 fs/xfs/xfs_aops.c:753 read_pages+0x17a/0x580 mm/readahead.c:163 page_cache_ra_order+0x959/0xe80 mm/readahead.c:518 do_sync_mmap_readahead+0x66a/0x870 mm/filemap.c:3400 filemap_fault+0x6ac/0x12b0 mm/filemap.c:3549 __do_fault+0x138/0x390 mm/memory.c:5318 do_shared_fault mm/memory.c:5817 [inline] do_fault mm/memory.c:5891 [inline] do_pte_missing+0x6ad/0x3380 mm/memory.c:4399 handle_pte_fault mm/memory.c:6232 [inline] __handle_mm_fault mm/memory.c:6379 [inline] handle_mm_fault+0x1b26/0x32a0 mm/memory.c:6548 do_user_addr_fault+0x764/0x1380 arch/x86/mm/fault.c:1387 handle_page_fault arch/x86/mm/fault.c:1476 [inline] exc_page_fault+0x82/0x100 arch/x86/mm/fault.c:1532 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618 RIP: 0010:rep_movs_alternative+0x4a/0x90 arch/x86/lib/copy_user_64.S:74 Code: cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 8b 06 48 89 07 48 83 c6 08 48 83 c7 08 83 e9 08 74 db 83 f9 08 73 e8 eb c5 a4 e9 ff 53 04 00 48 8b 06 48 89 07 48 8d 47 08 48 83 e0 f8 48 RSP: 0018:ffffc90003def898 EFLAGS: 00050202 RAX: ffffffff848d8901 RBX: ffff88807d3c4000 RCX: 000000000000024b RDX: 0000000000000000 RSI: ffff88807d3c4000 RDI: 0000200000002600 RBP: ffffc90003defa10 R08: ffff88807d3c424a R09: 1ffff1100fa78849 R10: dffffc0000000000 R11: ffffed100fa7884a R12: dffffc0000000000 R13: 0000000000000000 R14: 00007ffffffff000 R15: 000000000000024b copy_user_generic arch/x86/include/asm/uaccess_64.h:126 [inline] raw_copy_to_user arch/x86/include/asm/uaccess_64.h:147 [inline] copy_to_user_iter lib/iov_iter.c:25 [inline] iterate_iovec include/linux/iov_iter.h:52 [inline] iterate_and_advance2 include/linux/iov_iter.h:304 [inline] iterate_and_advance include/linux/iov_iter.h:330 [inline] _copy_to_iter+0x493/0x1790 lib/iov_iter.c:185 copy_to_iter include/linux/uio.h:220 [inline] seq_read_iter+0xbf5/0xe20 fs/seq_file.c:281 seq_read+0x369/0x480 fs/seq_file.c:162 pde_read fs/proc/inode.c:308 [inline] proc_reg_read+0x1e9/0x2e0 fs/proc/inode.c:320 vfs_read+0x200/0xa30 fs/read_write.c:570 ksys_read+0x145/0x250 fs/read_write.c:715 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: 0033:0x7fed8af8f749 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:00007fed8bdfd038 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00007fed8b1e5fa0 RCX: 00007fed8af8f749 RDX: 000000000000fe18 RSI: 0000200000002600 RDI: 0000000000000006 RBP: 00007fed8b013f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fed8b1e6038 R14: 00007fed8b1e5fa0 R15: 00007fff59376668 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:folio_end_read+0x22e/0x230 mm/filemap.c:1531 Code: 54 c7 ff 48 89 df 48 c7 c6 80 84 74 8b e8 8a 89 2d ff 90 0f 0b e8 92 54 c7 ff 48 89 df 48 c7 c6 e0 7c 74 8b e8 73 89 2d ff 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa RSP: 0018:ffffc90003deec48 EFLAGS: 00010246 RAX: 089b96ef6e8ce300 RBX: ffffea0001b17000 RCX: 0000000000000000 RDX: 0000000000000007 RSI: ffffffff8d78e538 RDI: 00000000ffffffff RBP: 0000000000000001 R08: ffffffff8f7de477 R09: 1ffffffff1efbc8e R10: dffffc0000000000 R11: fffffbfff1efbc8f R12: 1ffffd4000362e01 R13: 1ffffd4000362e00 R14: ffffea0001b17008 R15: 0000000000000008 FS: 00007fed8bdfd6c0(0000) GS:ffff888125fbc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000002600 CR3: 0000000030bae000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess): 0: cc int3 1: cc int3 2: cc int3 3: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) a: 00 00 00 d: 0f 1f 00 nopl (%rax) 10: 48 8b 06 mov (%rsi),%rax 13: 48 89 07 mov %rax,(%rdi) 16: 48 83 c6 08 add $0x8,%rsi 1a: 48 83 c7 08 add $0x8,%rdi 1e: 83 e9 08 sub $0x8,%ecx 21: 74 db je 0xfffffffe 23: 83 f9 08 cmp $0x8,%ecx 26: 73 e8 jae 0x10 28: eb c5 jmp 0xffffffef * 2a: f3 a4 rep movsb %ds:(%rsi),%es:(%rdi) <-- trapping instruction 2c: e9 ff 53 04 00 jmp 0x45430 31: 48 8b 06 mov (%rsi),%rax 34: 48 89 07 mov %rax,(%rdi) 37: 48 8d 47 08 lea 0x8(%rdi),%rax 3b: 48 83 e0 f8 and $0xfffffffffffffff8,%rax 3f: 48 rex.W