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:00007f41fa405028 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 00007f41fbc55090 RCX: 00007f41fb9cd0d9 RDX: 00000000000001ff RSI: 0000200000000100 RDI: ffffffffffffff9c RBP: 00007f41fba64024 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f41fbc55128 R14: 00007f41fbc55090 R15: 00007ffedc925888 ---[ end trace d41720eb6e2783ff ]--- general protection fault, probably for non-canonical address 0xe80775db85fe76a6: 0000 [#1] PREEMPT SMP KASAN KASAN: maybe wild-memory-access in range [0x403bcedc2ff3b530-0x403bcedc2ff3b537] CPU: 1 PID: 1445 Comm: syz.9.275 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:kobj_child_ns_ops lib/kobject.c:1085 [inline] RIP: 0010:kobj_ns_ops lib/kobject.c:1092 [inline] RIP: 0010:kobject_namespace lib/kobject.c:30 [inline] RIP: 0010:create_dir lib/kobject.c:89 [inline] RIP: 0010:kobject_add_internal+0x601/0xde0 lib/kobject.c:263 Code: e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 4c 89 e7 e8 ef 2c 45 ff 49 8b 04 24 48 85 c0 0f 84 b5 00 00 00 4c 89 ff d0 48 85 c0 0f 84 b1 00 00 00 48 89 c1 48 c1 e9 03 48 ba 00 00 RSP: 0018:ffffc90000c57838 EFLAGS: 00010286 RAX: e80775db85fe76a6 RBX: ffff88810ab2d000 RCX: dffffc0000000000 RDX: ffffc900058fa000 RSI: 000000000007ffff RDI: ffff88811ed3e800 RBP: ffffc90000c57890 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffff5200018aef8 R12: ffffffff82ee0edc R13: ffff88810ab2d018 R14: ffffffff8681c820 R15: ffff88811ed3e800 FS: 00007f41fa4056c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1e2e8027c0 CR3: 000000011439f000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kobject_add_varg lib/kobject.c:398 [inline] kobject_add+0x165/0x230 lib/kobject.c:450 device_add+0x3d8/0xc00 drivers/base/core.c:3206 device_create_groups_vargs drivers/base/core.c:3960 [inline] device_create+0x26c/0x300 drivers/base/core.c:4002 create_function_device+0x60/0x70 drivers/usb/gadget/configfs.c:31 create_alsa_device drivers/usb/gadget/function/f_midi.c:1262 [inline] f_midi_alloc_inst+0x1a8/0x380 drivers/usb/gadget/function/f_midi.c:1303 try_get_usb_function_instance drivers/usb/gadget/functions.c:28 [inline] usb_get_function_instance+0xe2/0x2f0 drivers/usb/gadget/functions.c:44 function_make+0x118/0x350 drivers/usb/gadget/configfs.c:636 configfs_mkdir+0x5d2/0xd90 fs/configfs/dir.c:1382 vfs_mkdir+0x42c/0x600 fs/namei.c:3798 do_mkdirat+0x14c/0x340 fs/namei.c:3820 __do_sys_mkdirat fs/namei.c:3831 [inline] __se_sys_mkdirat fs/namei.c:3829 [inline] __x64_sys_mkdirat+0x7b/0x90 fs/namei.c:3829 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f41fb9cd0d9 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:00007f41fa405028 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 00007f41fbc55090 RCX: 00007f41fb9cd0d9 RDX: 00000000000001ff RSI: 0000200000000100 RDI: ffffffffffffff9c RBP: 00007f41fba64024 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f41fbc55128 R14: 00007f41fbc55090 R15: 00007ffedc925888 Modules linked in: ---[ end trace d41720eb6e278400 ]--- RIP: 0010:kobj_child_ns_ops lib/kobject.c:1085 [inline] RIP: 0010:kobj_ns_ops lib/kobject.c:1092 [inline] RIP: 0010:kobject_namespace lib/kobject.c:30 [inline] RIP: 0010:create_dir lib/kobject.c:89 [inline] RIP: 0010:kobject_add_internal+0x601/0xde0 lib/kobject.c:263 Code: e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 4c 89 e7 e8 ef 2c 45 ff 49 8b 04 24 48 85 c0 0f 84 b5 00 00 00 4c 89 ff d0 48 85 c0 0f 84 b1 00 00 00 48 89 c1 48 c1 e9 03 48 ba 00 00 RSP: 0018:ffffc90000c57838 EFLAGS: 00010286 RAX: e80775db85fe76a6 RBX: ffff88810ab2d000 RCX: dffffc0000000000 RDX: ffffc900058fa000 RSI: 000000000007ffff RDI: ffff88811ed3e800 RBP: ffffc90000c57890 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffff5200018aef8 R12: ffffffff82ee0edc R13: ffff88810ab2d018 R14: ffffffff8681c820 R15: ffff88811ed3e800 FS: 00007f41fa4056c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000004500 CR3: 000000011439f000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: ff c3 inc %ebx 2: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 9: 00 00 00 c: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 11: 48 89 f8 mov %rdi,%rax 14: 48 89 f7 mov %rsi,%rdi 17: 48 89 d6 mov %rdx,%rsi 1a: 48 89 ca mov %rcx,%rdx 1d: 4d 89 c2 mov %r8,%r10 20: 4d 89 c8 mov %r9,%r8 23: 4c 8b 4c 24 08 mov 0x8(%rsp),%r9 28: 0f 05 syscall * 2a: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction 30: 73 01 jae 0x33 32: c3 ret 33: 48 c7 c1 e8 ff ff ff mov $0xffffffffffffffe8,%rcx 3a: f7 d8 neg %eax 3c: 64 89 01 mov %eax,%fs:(%rcx) 3f: 48 rex.W