BUG: unable to handle page fault for address: fffffffffffffff0 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD cf7b067 P4D cf7b067 PUD cf7d067 PMD 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 9006 Comm: syz-executor.3 Not tainted 6.7.0-rc8-next-20240102-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 RIP: 0010:set_gid fs/tracefs/inode.c:220 [inline] RIP: 0010:tracefs_apply_options.isra.0+0x496/0xa00 fs/tracefs/inode.c:332 Code: 8b 7b 68 4c 89 ff 48 83 ef 10 74 3b 48 89 3c 24 e8 df d5 3c fe 48 8b 3c 24 48 89 fa 48 c1 ea 03 80 3c 2a 00 0f 85 92 04 00 00 <49> 8b 47 f0 31 ff 83 e0 02 49 89 c7 48 89 c6 e8 46 d1 3c fe 4d 85 RSP: 0018:ffffc90009e07cb0 EFLAGS: 00010246 RAX: 0000000000003f9a RBX: ffff8880396b7570 RCX: ffffc90019a61000 RDX: 1ffffffffffffffe RSI: ffffffff834b4c51 RDI: fffffffffffffff0 RBP: dffffc0000000000 R08: 0000000000000001 R09: fffff520013c0f88 R10: 0000000000000003 R11: 3030303030303030 R12: ffff88801b4f50d8 R13: ffff8880396b7608 R14: ffff88801b4f5170 R15: 0000000000000000 FS: 00007ff81af2f6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffff0 CR3: 000000007f448000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: tracefs_remount+0x6c/0x80 fs/tracefs/inode.c:348 legacy_reconfigure+0x119/0x180 fs/fs_context.c:685 reconfigure_super+0x44f/0xb10 fs/super.c:1076 do_remount fs/namespace.c:2892 [inline] path_mount+0x1729/0x1f10 fs/namespace.c:3671 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount fs/namespace.c:3875 [inline] __x64_sys_mount+0x293/0x310 fs/namespace.c:3875 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd0/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x62/0x6a RIP: 0033:0x7ff81a27cce9 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:00007ff81af2f0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ff81a39bf80 RCX: 00007ff81a27cce9 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000000 RBP: 00007ff81a2c947a R08: 0000000020000100 R09: 0000000000000000 R10: 0000000002204c3b R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000004d R14: 00007ff81a39bf80 R15: 00007fffb5cce148 Modules linked in: CR2: fffffffffffffff0 ---[ end trace 0000000000000000 ]--- RIP: 0010:set_gid fs/tracefs/inode.c:220 [inline] RIP: 0010:tracefs_apply_options.isra.0+0x496/0xa00 fs/tracefs/inode.c:332 Code: 8b 7b 68 4c 89 ff 48 83 ef 10 74 3b 48 89 3c 24 e8 df d5 3c fe 48 8b 3c 24 48 89 fa 48 c1 ea 03 80 3c 2a 00 0f 85 92 04 00 00 <49> 8b 47 f0 31 ff 83 e0 02 49 89 c7 48 89 c6 e8 46 d1 3c fe 4d 85 RSP: 0018:ffffc90009e07cb0 EFLAGS: 00010246 RAX: 0000000000003f9a RBX: ffff8880396b7570 RCX: ffffc90019a61000 RDX: 1ffffffffffffffe RSI: ffffffff834b4c51 RDI: fffffffffffffff0 RBP: dffffc0000000000 R08: 0000000000000001 R09: fffff520013c0f88 R10: 0000000000000003 R11: 3030303030303030 R12: ffff88801b4f50d8 R13: ffff8880396b7608 R14: ffff88801b4f5170 R15: 0000000000000000 FS: 00007ff81af2f6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffff0 CR3: 000000007f448000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 8b 7b 68 mov 0x68(%rbx),%edi 3: 4c 89 ff mov %r15,%rdi 6: 48 83 ef 10 sub $0x10,%rdi a: 74 3b je 0x47 c: 48 89 3c 24 mov %rdi,(%rsp) 10: e8 df d5 3c fe call 0xfe3cd5f4 15: 48 8b 3c 24 mov (%rsp),%rdi 19: 48 89 fa mov %rdi,%rdx 1c: 48 c1 ea 03 shr $0x3,%rdx 20: 80 3c 2a 00 cmpb $0x0,(%rdx,%rbp,1) 24: 0f 85 92 04 00 00 jne 0x4bc * 2a: 49 8b 47 f0 mov -0x10(%r15),%rax <-- trapping instruction 2e: 31 ff xor %edi,%edi 30: 83 e0 02 and $0x2,%eax 33: 49 89 c7 mov %rax,%r15 36: 48 89 c6 mov %rax,%rsi 39: e8 46 d1 3c fe call 0xfe3cd184 3e: 4d rex.WRB 3f: 85 .byte 0x85