RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000000 RBP: 00007f8bbb7b8120 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000020000001 R11: 0000000000000246 R12: 0000000000000002 R13: 000000000000000b R14: 00007f8bbab9bf80 R15: 00007ffcd95f8798 </TASK> general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 1 PID: 10679 Comm: syz-executor.1 Not tainted 6.5.0-rc1-syzkaller-00248-gb6e6cc1f78c7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023 RIP: 0010:_compound_head include/linux/page-flags.h:245 [inline] RIP: 0010:unlock_page+0x28/0x140 mm/folio-compat.c:21 Code: 40 00 f3 0f 1e fa 41 57 41 56 41 54 53 49 89 fe 49 bf 00 00 00 00 00 fc ff df e8 63 cb cb ff 49 8d 5e 08 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 49 88 24 00 48 8b 1b 48 89 de 48 RSP: 0018:ffffc90003537618 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000008 RCX: 0000000000040000 RDX: ffffc900065d3000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: 0000000000000001 R08: ffffffff82ce3184 R09: 1ffffd4000483d10 R10: dffffc0000000000 R11: fffff94000483d11 R12: ffff88802c8bfa08 R13: 00000000fffffff4 R14: 0000000000000000 R15: dffffc0000000000 FS: 00007f8bbb7b86c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f812ebfe800 CR3: 000000007ac40000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> ni_readpage_cmpr+0x42a/0xa70 fs/ntfs3/frecord.c:2153 ntfs_read_folio+0x19e/0x210 fs/ntfs3/inode.c:716 filemap_read_folio+0x19d/0x7a0 mm/filemap.c:2389 filemap_create_folio mm/filemap.c:2517 [inline] filemap_get_pages+0xdf7/0x20c0 mm/filemap.c:2570 filemap_splice_read+0x4ce/0xcd0 mm/filemap.c:2925 splice_file_to_pipe+0x67/0x110 fs/splice.c:1234 do_sendfile+0x5c4/0x1070 fs/read_write.c:1261 __do_sys_sendfile64 fs/read_write.c:1322 [inline] __se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1308 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f8bbaa7cb29 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f8bbb7b80c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f8bbab9bf80 RCX: 00007f8bbaa7cb29 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000000 RBP: 00007f8bbb7b8120 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000020000001 R11: 0000000000000246 R12: 0000000000000002 R13: 000000000000000b R14: 00007f8bbab9bf80 R15: 00007ffcd95f8798 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:_compound_head include/linux/page-flags.h:245 [inline] RIP: 0010:unlock_page+0x28/0x140 mm/folio-compat.c:21 Code: 40 00 f3 0f 1e fa 41 57 41 56 41 54 53 49 89 fe 49 bf 00 00 00 00 00 fc ff df e8 63 cb cb ff 49 8d 5e 08 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 49 88 24 00 48 8b 1b 48 89 de 48 RSP: 0018:ffffc90003537618 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000008 RCX: 0000000000040000 RDX: ffffc900065d3000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: 0000000000000001 R08: ffffffff82ce3184 R09: 1ffffd4000483d10 R10: dffffc0000000000 R11: fffff94000483d11 R12: ffff88802c8bfa08 R13: 00000000fffffff4 R14: 0000000000000000 R15: dffffc0000000000 FS: 00007f8bbb7b86c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055555614f978 CR3: 000000007ac40000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 40 00 f3 add %sil,%bl 3: 0f 1e fa nop %edx 6: 41 57 push %r15 8: 41 56 push %r14 a: 41 54 push %r12 c: 53 push %rbx d: 49 89 fe mov %rdi,%r14 10: 49 bf 00 00 00 00 00 movabs $0xdffffc0000000000,%r15 17: fc ff df 1a: e8 63 cb cb ff call 0xffcbcb82 1f: 49 8d 5e 08 lea 0x8(%r14),%rbx 23: 48 89 d8 mov %rbx,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 48 89 df mov %rbx,%rdi 34: e8 49 88 24 00 call 0x248882 39: 48 8b 1b mov (%rbx),%rbx 3c: 48 89 de mov %rbx,%rsi 3f: 48 rex.W