exfat: Deprecated parameter 'utf8' exfat: Deprecated parameter 'utf8' exFAT-fs (loop1): failed to load upcase table (idx : 0x00010000, chksum : 0xfb8363f9, utbl_chksum : 0xe619d30d) BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 12e115067 P4D 12e115067 PUD 12aa05067 PMD 0 Oops: 0002 [#1] PREEMPT SMP CPU: 1 PID: 6732 Comm: syz-executor.1 Not tainted 5.7.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 RIP: 0010:arch_clear_bit arch/x86/include/asm/bitops.h:79 [inline] RIP: 0010:clear_bit include/asm-generic/bitops/instrumented-atomic.h:42 [inline] RIP: 0010:clear_bit_le include/asm-generic/bitops/le.h:65 [inline] RIP: 0010:exfat_clear_bitmap+0x52/0x150 fs/exfat/balloc.c:183 Code: a5 68 06 00 00 0f b6 4d 14 49 8b 44 24 58 d3 eb 48 63 db 48 8b 04 d8 48 8b 48 28 48 8b 45 18 8d 04 c5 ff ff ff ff 21 d0 48 98 48 0f b3 01 49 8b 46 28 31 ff 4c 8b 78 50 41 81 e7 90 00 00 00 RSP: 0018:ffffc90000eefc38 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000001000 RSI: ffffffff81688f29 RDI: ffff88812fa79208 RBP: ffff88812abaa000 R08: ffff88812c2b0000 R09: ffff88812c2b0990 R10: 0000000000000001 R11: ffff88812c2b0000 R12: ffff88812aba8000 R13: 0000000000001002 R14: ffff88812fa79208 R15: ffff88812aba8000 FS: 00007fc0b09d06c0(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000012e0d1000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: exfat_free_cluster+0x12f/0x160 fs/exfat/fatent.c:183 __exfat_truncate+0x409/0x4a0 fs/exfat/file.c:217 exfat_evict_inode+0x7c/0x92 fs/exfat/inode.c:663 evict+0x11c/0x270 fs/inode.c:576 iput_final fs/inode.c:1572 [inline] iput+0x294/0x3d0 fs/inode.c:1598 dentry_unlink_inode+0x111/0x180 fs/dcache.c:374 __dentry_kill+0x186/0x270 fs/dcache.c:579 dentry_kill fs/dcache.c:698 [inline] dput.part.32+0x316/0x670 fs/dcache.c:859 do_renameat2+0x5bf/0x840 fs/namei.c:4441 __do_sys_rename fs/namei.c:4483 [inline] __se_sys_rename fs/namei.c:4481 [inline] __x64_sys_rename+0x20/0x30 fs/namei.c:4481 do_syscall_64+0x8c/0x2a0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7fc0b0e4d859 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:00007fc0b09d00c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 RAX: ffffffffffffffda RBX: 00007fc0b0f6cf80 RCX: 00007fc0b0e4d859 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000020000040 RBP: 00007fc0b0ea9ad0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 00007fc0b0f6cf80 R15: 00007fff2a51e6d8 Modules linked in: CR2: 0000000000000000 ---[ end trace c2a596aa7a6e2aac ]--- RIP: 0010:arch_clear_bit arch/x86/include/asm/bitops.h:79 [inline] RIP: 0010:clear_bit include/asm-generic/bitops/instrumented-atomic.h:42 [inline] RIP: 0010:clear_bit_le include/asm-generic/bitops/le.h:65 [inline] RIP: 0010:exfat_clear_bitmap+0x52/0x150 fs/exfat/balloc.c:183 Code: a5 68 06 00 00 0f b6 4d 14 49 8b 44 24 58 d3 eb 48 63 db 48 8b 04 d8 48 8b 48 28 48 8b 45 18 8d 04 c5 ff ff ff ff 21 d0 48 98 48 0f b3 01 49 8b 46 28 31 ff 4c 8b 78 50 41 81 e7 90 00 00 00 RSP: 0018:ffffc90000eefc38 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000001000 RSI: ffffffff81688f29 RDI: ffff88812fa79208 RBP: ffff88812abaa000 R08: ffff88812c2b0000 R09: ffff88812c2b0990 R10: 0000000000000001 R11: ffff88812c2b0000 R12: ffff88812aba8000 R13: 0000000000001002 R14: ffff88812fa79208 R15: ffff88812aba8000 FS: 00007fc0b09d06c0(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000012e0d1000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: a5 movsl %ds:(%rsi),%es:(%rdi) 1: 68 06 00 00 0f push $0xf000006 6: b6 4d mov $0x4d,%dh 8: 14 49 adc $0x49,%al a: 8b 44 24 58 mov 0x58(%rsp),%eax e: d3 eb shr %cl,%ebx 10: 48 63 db movslq %ebx,%rbx 13: 48 8b 04 d8 mov (%rax,%rbx,8),%rax 17: 48 8b 48 28 mov 0x28(%rax),%rcx 1b: 48 8b 45 18 mov 0x18(%rbp),%rax 1f: 8d 04 c5 ff ff ff ff lea -0x1(,%rax,8),%eax 26: 21 d0 and %edx,%eax 28: 48 98 cltq * 2a: f0 48 0f b3 01 lock btr %rax,(%rcx) <-- trapping instruction 2f: 49 8b 46 28 mov 0x28(%r14),%rax 33: 31 ff xor %edi,%edi 35: 4c 8b 78 50 mov 0x50(%rax),%r15 39: 41 81 e7 90 00 00 00 and $0x90,%r15d