__dentry_kill+0x209/0x660 fs/dcache.c:670 dput+0x19f/0x2b0 fs/dcache.c:912 __fput+0x68e/0xa70 fs/file_table.c:476 task_work_run+0x1d4/0x260 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:44 [inline] exit_to_user_mode_loop+0xff/0x4f0 kernel/entry/common.c:75 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline] do_syscall_64+0x2e9/0xfa0 arch/x86/entry/syscall_64.c:100 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: 0 UID: 0 PID: 8561 Comm: syz.8.643 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:ffffc9000bfaf1e8 EFLAGS: 00010246 RAX: 63a65eb70d300000 RBX: ffffea000127d940 RCX: 0000000000000000 RDX: 0000000000000007 RSI: ffffffff8d78e538 RDI: 00000000ffffffff RBP: 0000000000000001 R08: ffffffff8f7de477 R09: 1ffffffff1efbc8e R10: dffffc0000000000 R11: fffffbfff1efbc8f R12: 1ffffd400024fb29 R13: 1ffffd400024fb28 R14: ffffea000127d948 R15: 0000000000000008 FS: 00007fbcf66686c0(0000) GS:ffff888125ebc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055557b486808 CR3: 0000000031fd0000 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_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:__put_user_4+0xd/0x20 arch/x86/lib/putuser.S:94 Code: 66 89 01 31 c9 0f 01 ca c3 cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 89 cb 48 c1 fb 3f 48 09 d9 0f 01 cb <89> 01 31 c9 0f 01 ca c3 cc cc cc cc 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000bfafe40 EFLAGS: 00050202 RAX: 0000000000000006 RBX: 0000000000000000 RCX: 0000200000000340 RDX: 0000000000000000 RSI: ffffffff8d974ed5 RDI: ffffffff8bbf8160 RBP: 0000000000000006 R08: 0000000000000000 R09: ffffffff820f9f30 R10: dffffc0000000000 R11: ffffed100d39c819 R12: 0000000000000000 R13: 0000200000000340 R14: 000000000000001e R15: 0000000000000002 __sys_socketpair+0xb7/0x560 net/socket.c:1801 __do_sys_socketpair net/socket.c:1867 [inline] __se_sys_socketpair net/socket.c:1864 [inline] __x64_sys_socketpair+0x9b/0xb0 net/socket.c:1864 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: 0033:0x7fbcf578f6c9 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:00007fbcf6668038 EFLAGS: 00000246 ORIG_RAX: 0000000000000035 RAX: ffffffffffffffda RBX: 00007fbcf59e5fa0 RCX: 00007fbcf578f6c9 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 000000000000001e RBP: 00007fbcf5811f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000200000000340 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fbcf59e6038 R14: 00007fbcf59e5fa0 R15: 00007ffe30d7c0b8 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:ffffc9000bfaf1e8 EFLAGS: 00010246 RAX: 63a65eb70d300000 RBX: ffffea000127d940 RCX: 0000000000000000 RDX: 0000000000000007 RSI: ffffffff8d78e538 RDI: 00000000ffffffff RBP: 0000000000000001 R08: ffffffff8f7de477 R09: 1ffffffff1efbc8e R10: dffffc0000000000 R11: fffffbfff1efbc8f R12: 1ffffd400024fb29 R13: 1ffffd400024fb28 R14: ffffea000127d948 R15: 0000000000000008 FS: 00007fbcf66686c0(0000) GS:ffff888125fbc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd47e8a158 CR3: 0000000031fd0000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess): 0: 66 89 01 mov %ax,(%rcx) 3: 31 c9 xor %ecx,%ecx 5: 0f 01 ca clac 8: c3 ret 9: cc int3 a: cc int3 b: cc int3 c: cc int3 d: 90 nop e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop 16: 90 nop 17: 90 nop 18: 90 nop 19: 90 nop 1a: 90 nop 1b: 90 nop 1c: 90 nop 1d: 48 89 cb mov %rcx,%rbx 20: 48 c1 fb 3f sar $0x3f,%rbx 24: 48 09 d9 or %rbx,%rcx 27: 0f 01 cb stac * 2a: 89 01 mov %eax,(%rcx) <-- trapping instruction 2c: 31 c9 xor %ecx,%ecx 2e: 0f 01 ca clac 31: c3 ret 32: cc int3 33: cc int3 34: cc int3 35: cc int3 36: 90 nop 37: 90 nop 38: 90 nop 39: 90 nop 3a: 90 nop 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop