WARNING: The mand mount option has been deprecated and and is ignored by this kernel. Remove the mand option from the mount to silence this warning. ======================================================= exFAT-fs (loop2): Volume was not properly unmounted. Some data may be corrupt. Please run fsck. exFAT-fs (loop2): Medium has reported failures. Some data may be lost. exFAT-fs (loop2): failed to load upcase table (idx : 0x00010000, chksum : 0xe2e35dda, utbl_chksum : 0xe619d30d) BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor instruction fetch in kernel mode #PF: error_code(0x0010) - not-present page PGD 12db61067 P4D 12db61067 PUD 0 Oops: 0010 [#1] PREEMPT SMP KASAN CPU: 1 PID: 357 Comm: syz.2.17 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 RIP: 0010:0x0 Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6. RSP: 0018:ffffc90000b779d8 EFLAGS: 00010246 RAX: 1ffffffff0aa0cd8 RBX: 1ffff1102137cf10 RCX: ffff8881103be2c0 RDX: 0000000000000000 RSI: ffff888109be7880 RDI: ffff888121372350 RBP: ffffc90000b77ab0 R08: ffffffff8711f5b7 R09: 1ffffffff0e23eb6 R10: dffffc0000000000 R11: fffffbfff0e23eb7 R12: dffffc0000000000 R13: ffff888109be7880 R14: ffffffff855066c0 R15: 1ffff9200016ef40 FS: 0000555563cec500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 000000012db51000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __lookup_slow+0x2b8/0x410 fs/namei.c:1671 lookup_one_len+0x19d/0x2d0 fs/namei.c:2726 incfs_lookup_dentry+0x60/0xb0 fs/incfs/data_mgmt.c:210 ioctl_create_file fs/incfs/pseudo_files.c:556 [inline] pending_reads_dispatch_ioctl+0x161e/0x1e70 fs/incfs/pseudo_files.c:1030 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl+0x121/0x1a0 fs/ioctl.c:860 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:860 x64_sys_call+0x2f/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:17 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7ff9942a0819 Code: ff c3 66 2e 0f 1f 84 00 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 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fff2a4e9918 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007ff994519fa0 RCX: 00007ff9942a0819 RDX: 00002000000000c0 RSI: 00000000c058671e RDI: 0000000000000005 RBP: 00007ff994336c91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ff994519fac R14: 00007ff994519fa0 R15: 00007ff994519fa0 Modules linked in: CR2: 0000000000000000 ---[ end trace f62f978b3530e73e ]--- RIP: 0010:0x0 Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6. RSP: 0018:ffffc90000b779d8 EFLAGS: 00010246 RAX: 1ffffffff0aa0cd8 RBX: 1ffff1102137cf10 RCX: ffff8881103be2c0 RDX: 0000000000000000 RSI: ffff888109be7880 RDI: ffff888121372350 RBP: ffffc90000b77ab0 R08: ffffffff8711f5b7 R09: 1ffffffff0e23eb6 R10: dffffc0000000000 R11: fffffbfff0e23eb7 R12: dffffc0000000000 R13: ffff888109be7880 R14: ffffffff855066c0 R15: 1ffff9200016ef40 FS: 0000555563cec500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 000000012db51000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400