R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000001 R13: 000000000000000b R14: 00007fb62a79bf80 R15: 00007ffd69c78668 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: 32725 Comm: syz-executor.0 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+0x25/0x130 mm/folio-compat.c:21 Code: 00 eb b9 66 90 f3 0f 1e fa 41 54 55 53 48 89 fb e8 a0 f6 cf ff 48 8d 7b 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 e4 00 00 00 4c 8b 63 08 31 ff 4c 89 e5 83 e5 01 RSP: 0018:ffffc9009e467670 EFLAGS: 00010212 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90003b51000 RDX: 0000000000000001 RSI: ffffffff81b67840 RDI: 0000000000000008 RBP: 0000000000000001 R08: 0000000000000004 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000114a28 R12: 0000000000000000 R13: ffff88809b567408 R14: ffffea00024b9dc0 R15: 0000000000000000 FS: 00007fb62b38b6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2063ac66e4 CR3: 00000000a800f000 CR4: 0000000000350ee0 Call Trace: ni_readpage_cmpr+0x334/0xc80 fs/ntfs3/frecord.c:2153 ntfs_read_folio+0x107/0x1e0 fs/ntfs3/inode.c:716 filemap_read_folio+0xe5/0x2b0 mm/filemap.c:2389 filemap_update_page mm/filemap.c:2473 [inline] filemap_get_pages+0x130d/0x1820 mm/filemap.c:2587 filemap_splice_read+0x3d0/0x9f0 mm/filemap.c:2925 ntfs_file_splice_read+0x10d/0x190 fs/ntfs3/file.c:773 vfs_splice_read fs/splice.c:994 [inline] vfs_splice_read+0x2c8/0x3b0 fs/splice.c:963 splice_direct_to_actor+0x2a5/0xa30 fs/splice.c:1070 do_splice_direct+0x1af/0x280 fs/splice.c:1195 do_sendfile+0xb88/0x1390 fs/read_write.c:1254 __do_sys_sendfile64 fs/read_write.c:1322 [inline] __se_sys_sendfile64 fs/read_write.c:1308 [inline] __x64_sys_sendfile64+0x1d6/0x220 fs/read_write.c:1308 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fb62a67cb29 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:00007fb62b38b0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007fb62a79bf80 RCX: 00007fb62a67cb29 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004 RBP: 00007fb62b38b120 R08: 0000000000000000 R09: 0000000000000000 R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000001 R13: 000000000000000b R14: 00007fb62a79bf80 R15: 00007ffd69c78668 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:_compound_head include/linux/page-flags.h:245 [inline] RIP: 0010:unlock_page+0x25/0x130 mm/folio-compat.c:21 Code: 00 eb b9 66 90 f3 0f 1e fa 41 54 55 53 48 89 fb e8 a0 f6 cf ff 48 8d 7b 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 e4 00 00 00 4c 8b 63 08 31 ff 4c 89 e5 83 e5 01 RSP: 0018:ffffc9009e467670 EFLAGS: 00010212 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90003b51000 RDX: 0000000000000001 RSI: ffffffff81b67840 RDI: 0000000000000008 RBP: 0000000000000001 R08: 0000000000000004 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000114a28 R12: 0000000000000000 R13: ffff88809b567408 R14: ffffea00024b9dc0 R15: 0000000000000000 FS: 00007fb62b38b6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2062f75198 CR3: 00000000a800f000 CR4: 0000000000350ef0 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: eb b9 jmp 0xffffffbb 2: 66 90 xchg %ax,%ax 4: f3 0f 1e fa endbr64 8: 41 54 push %r12 a: 55 push %rbp b: 53 push %rbx c: 48 89 fb mov %rdi,%rbx f: e8 a0 f6 cf ff call 0xffcff6b4 14: 48 8d 7b 08 lea 0x8(%rbx),%rdi 18: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 1f: fc ff df 22: 48 89 fa mov %rdi,%rdx 25: 48 c1 ea 03 shr $0x3,%rdx * 29: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2d: 0f 85 e4 00 00 00 jne 0x117 33: 4c 8b 63 08 mov 0x8(%rbx),%r12 37: 31 ff xor %edi,%edi 39: 4c 89 e5 mov %r12,%rbp 3c: 83 e5 01 and $0x1,%ebp