Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 14 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffeb8dd06d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f3e48689ca9 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004 RBP: 00007ffeb8dd06e0 R08: 0000000000000002 R09: 00007f3e48003833 R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000006 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 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: 3538 Comm: syz-executor406 Not tainted 6.1.29-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 RIP: 0010:_compound_head include/linux/page-flags.h:253 [inline] RIP: 0010:unlock_page+0x24/0x130 mm/folio-compat.c:20 Code: 66 0f 1f 44 00 00 41 57 41 56 41 54 53 49 89 fe 49 bf 00 00 00 00 00 fc ff df e8 f7 2a d0 ff 49 8d 5e 08 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 cd 6f 26 00 48 8b 1b 48 89 de 48 RSP: 0018:ffffc90003a4f3b0 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000008 RCX: ffff8880204d0000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000001 R08: ffffffff82c7da3c R09: fffff9400038ebd9 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000007 R13: 00000000fffffff4 R14: 0000000000000000 R15: dffffc0000000000 FS: 000055555694e300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3e4043c800 CR3: 00000000239d3000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ni_readpage_cmpr+0x582/0xa70 fs/ntfs3/frecord.c:2148 ntfs_read_folio+0x19a/0x210 fs/ntfs3/inode.c:713 filemap_read_folio+0x199/0x780 mm/filemap.c:2407 filemap_create_folio mm/filemap.c:2536 [inline] filemap_get_pages mm/filemap.c:2589 [inline] filemap_read+0x122a/0x31d0 mm/filemap.c:2676 call_read_iter include/linux/fs.h:2199 [inline] generic_file_splice_read+0x23c/0x630 fs/splice.c:309 do_splice_to fs/splice.c:793 [inline] splice_direct_to_actor+0x408/0xbd0 fs/splice.c:865 do_splice_direct+0x27f/0x3c0 fs/splice.c:974 do_sendfile+0x61c/0xff0 fs/read_write.c:1255 __do_sys_sendfile64 fs/read_write.c:1323 [inline] __se_sys_sendfile64+0x178/0x1e0 fs/read_write.c:1309 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f3e48689ca9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 14 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffeb8dd06d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f3e48689ca9 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004 RBP: 00007ffeb8dd06e0 R08: 0000000000000002 R09: 00007f3e48003833 R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000006 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:_compound_head include/linux/page-flags.h:253 [inline] RIP: 0010:unlock_page+0x24/0x130 mm/folio-compat.c:20 Code: 66 0f 1f 44 00 00 41 57 41 56 41 54 53 49 89 fe 49 bf 00 00 00 00 00 fc ff df e8 f7 2a d0 ff 49 8d 5e 08 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 cd 6f 26 00 48 8b 1b 48 89 de 48 RSP: 0018:ffffc90003a4f3b0 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000008 RCX: ffff8880204d0000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000001 R08: ffffffff82c7da3c R09: fffff9400038ebd9 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000007 R13: 00000000fffffff4 R14: 0000000000000000 R15: dffffc0000000000 FS: 000055555694e300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055fa19667ef8 CR3: 00000000239d3000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 28 00 sub %al,(%rax) 2: 00 00 add %al,(%rax) 4: 75 05 jne 0xb 6: 48 83 c4 28 add $0x28,%rsp a: c3 retq b: e8 51 14 00 00 callq 0x1461 10: 90 nop 11: 48 89 f8 mov %rdi,%rax 14: 48 89 f7 mov %rsi,%rdi 17: 48 89 d6 mov %rdx,%rsi 1a: 48 89 ca mov %rcx,%rdx 1d: 4d 89 c2 mov %r8,%r10 20: 4d 89 c8 mov %r9,%r8 23: 4c 8b 4c 24 08 mov 0x8(%rsp),%r9 28: 0f 05 syscall * 2a: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction 30: 73 01 jae 0x33 32: c3 retq 33: 48 c7 c1 c0 ff ff ff mov $0xffffffffffffffc0,%rcx 3a: f7 d8 neg %eax 3c: 64 89 01 mov %eax,%fs:(%rcx) 3f: 48 rex.W