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: 13455 Comm: syz-executor.5 Not tainted 5.19.0-rc3-next-20220623-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:map_buffer_to_folio fs/mpage.c:107 [inline] RIP: 0010:do_mpage_readpage+0xfe8/0x19f0 fs/mpage.c:228 Code: 85 ed 0f 84 98 01 00 00 49 be 00 00 00 00 00 fc ff df 4c 89 ed 45 31 e4 eb 2c e8 13 2d 93 ff 48 8d 7d 08 48 89 f8 48 c1 e8 03 <42> 80 3c 30 00 0f 85 53 08 00 00 48 8b 6d 08 41 83 c4 01 49 39 ed RSP: 0018:ffffc9000c7c77c0 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffc9000567a000 RDX: 0000000000040000 RSI: ffffffff81e7908d RDI: 0000000000000008 RBP: 0000000000000000 R08: 0000000000000004 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffc9000c7c7960 FS: 00007f38dbc1a700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020804000 CR3: 00000000611e6000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: mpage_read_folio+0xa5/0x140 fs/mpage.c:378 ntfs_read_folio+0x148/0x1e0 fs/ntfs3/inode.c:706 filemap_read_folio+0x3c/0x1d0 mm/filemap.c:2396 do_read_cache_folio+0x251/0x5b0 mm/filemap.c:3521 do_read_cache_page mm/filemap.c:3563 [inline] read_cache_page+0x59/0x2a0 mm/filemap.c:3572 read_mapping_page include/linux/pagemap.h:756 [inline] ntfs_map_page fs/ntfs3/ntfs_fs.h:897 [inline] ntfs_fill_super+0x27e9/0x3730 fs/ntfs3/super.c:1145 get_tree_bdev+0x4a2/0x7e0 fs/super.c:1294 vfs_get_tree+0x89/0x2f0 fs/super.c:1501 do_new_mount fs/namespace.c:3040 [inline] path_mount+0x1320/0x1fa0 fs/namespace.c:3370 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __x64_sys_mount+0x27f/0x300 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 RIP: 0033:0x7f38daa8a63a Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 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:00007f38dbc19f88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f38daa8a63a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f38dbc19fe0 RBP: 00007f38dbc1a020 R08: 00007f38dbc1a020 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000 R13: 0000000020000100 R14: 00007f38dbc19fe0 R15: 000000002007aa80 Modules linked in: ---------------- Code disassembly (best guess): 0: 85 ed test %ebp,%ebp 2: 0f 84 98 01 00 00 je 0x1a0 8: 49 be 00 00 00 00 00 movabs $0xdffffc0000000000,%r14 f: fc ff df 12: 4c 89 ed mov %r13,%rbp 15: 45 31 e4 xor %r12d,%r12d 18: eb 2c jmp 0x46 1a: e8 13 2d 93 ff callq 0xff932d32 1f: 48 8d 7d 08 lea 0x8(%rbp),%rdi 23: 48 89 f8 mov %rdi,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 80 3c 30 00 cmpb $0x0,(%rax,%r14,1) <-- trapping instruction 2f: 0f 85 53 08 00 00 jne 0x888 35: 48 8b 6d 08 mov 0x8(%rbp),%rbp 39: 41 83 c4 01 add $0x1,%r12d 3d: 49 39 ed cmp %rbp,%r13