RBP: 00007f2a892891d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffd538ec90f R14: 00007f2a89289300 R15: 0000000000022000 general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 0 PID: 4158 Comm: syz-executor.0 Not tainted 5.17.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 RIP: 0010:_compound_head include/linux/page-flags.h:195 [inline] RIP: 0010:unlock_page+0x19/0x40 mm/folio-compat.c:19 Code: ef 5d e9 7a 24 05 00 e8 b5 9f 19 00 eb e2 0f 1f 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 fd 48 83 c7 08 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 17 48 8b 45 08 48 8d 50 ff a8 01 48 0f 45 ea 48 89 RSP: 0018:ffffc900025af6b8 EFLAGS: 00010212 RAX: dffffc0000000000 RBX: 0000000000000008 RCX: dffffc0000000000 RDX: 0000000000000001 RSI: 0000000000000008 RDI: 0000000000000008 RBP: 0000000000000000 R08: 0000000000000001 R09: ffffea0001ae7a07 R10: fffff9400035cf40 R11: 0000000000000001 R12: ffff88801b718488 R13: 0000000000000000 R14: ffffea0001ae7a00 R15: 0000000000000000 FS: 00007f2a89289700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055d52633b131 CR3: 00000000229dc000 CR4: 0000000000350ef0 Call Trace: ni_readpage_cmpr+0x2fe/0x660 fs/ntfs3/frecord.c:2086 ntfs_readpage+0xcd/0x180 fs/ntfs3/inode.c:698 filemap_read_folio+0x7f/0x1a0 mm/filemap.c:2419 filemap_create_folio mm/filemap.c:2544 [inline] filemap_get_pages+0x3da/0x13d0 mm/filemap.c:2596 filemap_read+0x291/0x960 mm/filemap.c:2676 call_read_iter include/linux/fs.h:2073 [inline] generic_file_splice_read+0x362/0x570 fs/splice.c:311 splice_direct_to_actor+0x27a/0x7c0 fs/splice.c:870 do_splice_direct+0x154/0x260 fs/splice.c:979 do_sendfile+0x91e/0x1110 fs/read_write.c:1245 __do_sys_sendfile64 fs/read_write.c:1310 [inline] __se_sys_sendfile64 fs/read_write.c:1296 [inline] __x64_sys_sendfile64+0x186/0x1d0 fs/read_write.c:1296 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f2a89f17169 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f2a89289168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f2a8a036f80 RCX: 00007f2a89f17169 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004 RBP: 00007f2a892891d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffd538ec90f R14: 00007f2a89289300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:_compound_head include/linux/page-flags.h:195 [inline] RIP: 0010:unlock_page+0x19/0x40 mm/folio-compat.c:19 Code: ef 5d e9 7a 24 05 00 e8 b5 9f 19 00 eb e2 0f 1f 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 fd 48 83 c7 08 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 17 48 8b 45 08 48 8d 50 ff a8 01 48 0f 45 ea 48 89 RSP: 0018:ffffc900025af6b8 EFLAGS: 00010212 RAX: dffffc0000000000 RBX: 0000000000000008 RCX: dffffc0000000000 RDX: 0000000000000001 RSI: 0000000000000008 RDI: 0000000000000008 RBP: 0000000000000000 R08: 0000000000000001 R09: ffffea0001ae7a07 R10: fffff9400035cf40 R11: 0000000000000001 R12: ffff88801b718488 R13: 0000000000000000 R14: ffffea0001ae7a00 R15: 0000000000000000 FS: 00007f2a89289700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055d52632f950 CR3: 00000000229dc000 CR4: 0000000000350ee0 ---------------- Code disassembly (best guess): 0: ef out %eax,(%dx) 1: 5d pop %rbp 2: e9 7a 24 05 00 jmpq 0x52481 7: e8 b5 9f 19 00 callq 0x199fc1 c: eb e2 jmp 0xfffffff0 e: 0f 1f 00 nopl (%rax) 11: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 18: fc ff df 1b: 55 push %rbp 1c: 48 89 fd mov %rdi,%rbp 1f: 48 83 c7 08 add $0x8,%rdi 23: 48 89 fa mov %rdi,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2e: 75 17 jne 0x47 30: 48 8b 45 08 mov 0x8(%rbp),%rax 34: 48 8d 50 ff lea -0x1(%rax),%rdx 38: a8 01 test $0x1,%al 3a: 48 0f 45 ea cmovne %rdx,%rbp 3e: 48 rex.W 3f: 89 .byte 0x89