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: 6783 Comm: syz.5.199 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:ffffc9000b6a6fc8 EFLAGS: 00010246 RAX: 41a5e4b368a5f400 RBX: ffffea00013998c0 RCX: 0000000000000000 RDX: 0000000000000007 RSI: ffffffff8d78e538 RDI: 00000000ffffffff RBP: 0000000000000001 R08: ffffffff8f7de477 R09: 1ffffffff1efbc8e R10: dffffc0000000000 R11: fffffbfff1efbc8f R12: 1ffffd4000273319 R13: 1ffffd4000273318 R14: ffffea00013998c8 R15: 0000000000000008 FS: 00007fe7296d46c0(0000) GS:ffff888125fbc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0838d156c0 CR3: 0000000033e8e000 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+0x904/0xe80 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_read_fault mm/memory.c:5753 [inline] do_fault mm/memory.c:5887 [inline] do_pte_missing+0x2209/0x3380 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 faultin_page mm/gup.c:1126 [inline] __get_user_pages+0x1650/0x29f0 mm/gup.c:1428 populate_vma_page_range+0x29f/0x3a0 mm/gup.c:1860 __mm_populate+0x24c/0x380 mm/gup.c:1963 mm_populate include/linux/mm.h:3701 [inline] vm_mmap_pgoff+0x387/0x4d0 mm/util.c:586 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 RIP: 0033:0x7fe72878f6c9 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:00007fe7296d4038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007fe7289e5fa0 RCX: 00007fe72878f6c9 RDX: 00000000027ffff7 RSI: 0000000000600000 RDI: 0000200000000000 RBP: 00007fe728811f91 R08: 0000000000000004 R09: 0000000000000000 R10: 0000000004012011 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fe7289e6038 R14: 00007fe7289e5fa0 R15: 00007ffcdda59838 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:ffffc9000b6a6fc8 EFLAGS: 00010246 RAX: 41a5e4b368a5f400 RBX: ffffea00013998c0 RCX: 0000000000000000 RDX: 0000000000000007 RSI: ffffffff8d78e538 RDI: 00000000ffffffff RBP: 0000000000000001 R08: ffffffff8f7de477 R09: 1ffffffff1efbc8e R10: dffffc0000000000 R11: fffffbfff1efbc8f R12: 1ffffd4000273319 R13: 1ffffd4000273318 R14: ffffea00013998c8 R15: 0000000000000008 FS: 00007fe7296d46c0(0000) GS:ffff888125fbc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30c1cff8 CR3: 0000000033e8e000 CR4: 00000000003526f0