Oops: general protection fault, probably for non-canonical address 0xdffffc0000000042: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000210-0x0000000000000217] CPU: 1 UID: 0 PID: 10175 Comm: syz.2.863 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:run_close fs/ntfs3/ntfs_fs.h:1034 [inline] RIP: 0010:al_destroy+0x49/0xc0 fs/ntfs3/attrlist.c:33 Code: 02 00 00 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 58 8d 08 ff 48 8b 1b 4c 8d b3 10 02 00 00 4c 89 f0 48 c1 e8 03 <42> 80 3c 38 00 74 08 4c 89 f7 e8 38 8d 08 ff 48 8b bb 10 02 00 00 RSP: 0018:ffffc900058d6b40 EFLAGS: 00010206 RAX: 0000000000000042 RBX: 0000000000000000 RCX: ffff888030f88000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff888055c63f90 RBP: 0000000000000001 R08: ffffffff9058fb7f R09: 1ffffffff20b1f6f R10: dffffc0000000000 R11: fffffbfff20b1f70 R12: ffff888055c641e0 R13: dffffc0000000000 R14: 0000000000000210 R15: dffffc0000000000 FS: 00007f6714bf66c0(0000) GS:ffff88812500c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6714bd4f88 CR3: 00000000778ae000 CR4: 00000000003526f0 Call Trace: ni_clear+0x5d/0x630 fs/ntfs3/frecord.c:110 evict+0x624/0xb50 fs/inode.c:822 ntfs_new_inode+0x8c/0x120 fs/ntfs3/fsntfs.c:1719 ntfs_create_inode+0x6e7/0x3420 fs/ntfs3/inode.c:1520 ntfs_create+0x3d/0x50 fs/ntfs3/namei.c:117 lookup_open+0xc0d/0x1a40 fs/namei.c:4567 open_last_lookups fs/namei.c:4767 [inline] path_openat+0x677/0x1d60 fs/namei.c:4997 do_file_open+0x23e/0x4a0 fs/namei.c:5029 file_open_name fs/open.c:1375 [inline] filp_open+0x16d/0x1d0 fs/open.c:1392 coredump_file fs/coredump.c:929 [inline] do_coredump fs/coredump.c:1099 [inline] vfs_coredump+0x206b/0x4530 fs/coredump.c:1195 get_signal+0x1094/0x12c0 kernel/signal.c:3024 arch_do_signal_or_restart+0xbb/0x860 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:66 [inline] exit_to_user_mode_loop kernel/entry/common.c:101 [inline] __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] irqentry_exit_to_user_mode_prepare include/linux/irq-entry-common.h:244 [inline] irqentry_exit_to_user_mode include/linux/irq-entry-common.h:315 [inline] irqentry_exit+0x2e4/0x910 kernel/entry/common.c:165 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595 RIP: 0033:0x7f671699e0e1 Code: 00 00 00 00 0f 1f 44 00 00 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 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f RSP: 002b:fffffffffffffe70 EFLAGS: 00010217 RAX: 0000000000000000 RBX: 00007f6716c25fa0 RCX: 00007f671699e0d9 RDX: 0000000000000000 RSI: fffffffffffffe70 RDI: 0000000000008000 RBP: 00007f6716a35024 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 00007f6716c26038 R14: 00007f6716c25fa0 R15: 00007fff77c687f8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:run_close fs/ntfs3/ntfs_fs.h:1034 [inline] RIP: 0010:al_destroy+0x49/0xc0 fs/ntfs3/attrlist.c:33 Code: 02 00 00 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 58 8d 08 ff 48 8b 1b 4c 8d b3 10 02 00 00 4c 89 f0 48 c1 e8 03 <42> 80 3c 38 00 74 08 4c 89 f7 e8 38 8d 08 ff 48 8b bb 10 02 00 00 RSP: 0018:ffffc900058d6b40 EFLAGS: 00010206 RAX: 0000000000000042 RBX: 0000000000000000 RCX: ffff888030f88000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff888055c63f90 RBP: 0000000000000001 R08: ffffffff9058fb7f R09: 1ffffffff20b1f6f R10: dffffc0000000000 R11: fffffbfff20b1f70 R12: ffff888055c641e0 R13: dffffc0000000000 R14: 0000000000000210 R15: dffffc0000000000 FS: 00007f6714bf66c0(0000) GS:ffff88812500c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6714bd4f88 CR3: 00000000778ae000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess): 0: 02 00 add (%rax),%al 2: 00 48 89 add %cl,-0x77(%rax) 5: d8 48 c1 fmuls -0x3f(%rax) 8: e8 03 42 80 3c call 0x3c804210 d: 38 00 cmp %al,(%rax) f: 74 08 je 0x19 11: 48 89 df mov %rbx,%rdi 14: e8 58 8d 08 ff call 0xff088d71 19: 48 8b 1b mov (%rbx),%rbx 1c: 4c 8d b3 10 02 00 00 lea 0x210(%rbx),%r14 23: 4c 89 f0 mov %r14,%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: 4c 89 f7 mov %r14,%rdi 34: e8 38 8d 08 ff call 0xff088d71 39: 48 8b bb 10 02 00 00 mov 0x210(%rbx),%rdi