BUG: unable to handle page fault for address: fffffffffffffff0 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD cd7a067 P4D cd7a067 PUD cd7c067 PMD 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 6491 Comm: syz-executor.0 Not tainted 6.7.0-rc7-syzkaller-00049-g453f5db0619e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 RIP: 0010:set_gid fs/tracefs/inode.c:224 [inline] RIP: 0010:tracefs_apply_options.isra.0+0x3c2/0x9c0 fs/tracefs/inode.c:337 Code: 4c 89 ff 48 83 ef 10 74 45 48 89 7c 24 10 e8 65 14 41 fe 48 8b 7c 24 10 48 89 fa 48 c1 ea 03 42 80 3c 22 00 0f 85 30 05 00 00 <49> 8b 47 f0 31 ff 83 e0 02 48 89 c6 48 89 44 24 10 e8 c8 0f 41 fe RSP: 0018:ffffc9000bd6fcb0 EFLAGS: 00010246 RAX: 0000000000007431 RBX: ffff88807d8a49d8 RCX: ffffc9000a5e9000 RDX: 1ffffffffffffffe RSI: ffffffff83465deb RDI: fffffffffffffff0 RBP: ffff888148c03a70 R08: 0000000000000001 R09: fffff520017adf88 R10: 0000000000000003 R11: 0000000000000262 R12: dffffc0000000000 R13: ffff888148c03b88 R14: ffff88807d8a4960 R15: 0000000000000000 FS: 00007f4a4ca036c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffff0 CR3: 0000000077e42000 CR4: 0000000000350ef0 Call Trace: tracefs_remount+0x6c/0x80 fs/tracefs/inode.c:353 legacy_reconfigure+0x119/0x180 fs/fs_context.c:685 reconfigure_super+0x44f/0xb10 fs/super.c:1143 do_remount fs/namespace.c:2884 [inline] path_mount+0x16f2/0x1ed0 fs/namespace.c:3656 do_mount fs/namespace.c:3677 [inline] __do_sys_mount fs/namespace.c:3886 [inline] __se_sys_mount fs/namespace.c:3863 [inline] __x64_sys_mount+0x293/0x310 fs/namespace.c:3863 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f4a4bc7cce9 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:00007f4a4ca030c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f4a4bd9bf80 RCX: 00007f4a4bc7cce9 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000000 RBP: 00007f4a4bcc947a R08: 0000000020000000 R09: 0000000000000000 R10: 0000000002204c3b R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f4a4bd9bf80 R15: 00007fff37142dd8 Modules linked in: CR2: fffffffffffffff0 ---[ end trace 0000000000000000 ]--- RIP: 0010:set_gid fs/tracefs/inode.c:224 [inline] RIP: 0010:tracefs_apply_options.isra.0+0x3c2/0x9c0 fs/tracefs/inode.c:337 Code: 4c 89 ff 48 83 ef 10 74 45 48 89 7c 24 10 e8 65 14 41 fe 48 8b 7c 24 10 48 89 fa 48 c1 ea 03 42 80 3c 22 00 0f 85 30 05 00 00 <49> 8b 47 f0 31 ff 83 e0 02 48 89 c6 48 89 44 24 10 e8 c8 0f 41 fe RSP: 0018:ffffc9000bd6fcb0 EFLAGS: 00010246 RAX: 0000000000007431 RBX: ffff88807d8a49d8 RCX: ffffc9000a5e9000 RDX: 1ffffffffffffffe RSI: ffffffff83465deb RDI: fffffffffffffff0 RBP: ffff888148c03a70 R08: 0000000000000001 R09: fffff520017adf88 R10: 0000000000000003 R11: 0000000000000262 R12: dffffc0000000000 R13: ffff888148c03b88 R14: ffff88807d8a4960 R15: 0000000000000000 FS: 00007f4a4ca036c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffff0 CR3: 0000000077e42000 CR4: 0000000000350ef0 ---------------- Code disassembly (best guess): 0: 4c 89 ff mov %r15,%rdi 3: 48 83 ef 10 sub $0x10,%rdi 7: 74 45 je 0x4e 9: 48 89 7c 24 10 mov %rdi,0x10(%rsp) e: e8 65 14 41 fe call 0xfe411478 13: 48 8b 7c 24 10 mov 0x10(%rsp),%rdi 18: 48 89 fa mov %rdi,%rdx 1b: 48 c1 ea 03 shr $0x3,%rdx 1f: 42 80 3c 22 00 cmpb $0x0,(%rdx,%r12,1) 24: 0f 85 30 05 00 00 jne 0x55a * 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: 48 89 c6 mov %rax,%rsi 36: 48 89 44 24 10 mov %rax,0x10(%rsp) 3b: e8 c8 0f 41 fe call 0xfe411008