forked to background, child pid 3175 no interfaces have a carrier [ 13.235262][ T3176] 8021q: adding VLAN 0 to HW filter on device bond0 [ 13.238961][ T3176] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller syzkaller login: [ 69.875277][ T24] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.1.102' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program [ 229.386247][ T3614] kmemleak: 8 new suspected memory leaks (see /sys/kernel/debug/kmemleak) [ 229.489939][ T3647] sysfs: cannot create duplicate filename '/devices/virtual/tty/gsmtty1' [ 229.499180][ T3647] CPU: 1 PID: 3647 Comm: syz-executor252 Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0 [ 229.509631][ T3647] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 [ 229.519687][ T3647] Call Trace: [ 229.522965][ T3647] [ 229.525908][ T3647] dump_stack_lvl+0x6e/0x91 [ 229.530430][ T3647] sysfs_warn_dup.cold+0x1c/0x29 [ 229.535377][ T3647] sysfs_create_dir_ns+0x116/0x130 [ 229.540505][ T3647] kobject_add_internal+0x106/0x330 [ 229.545725][ T3647] kobject_add+0xb9/0x100 [ 229.550064][ T3647] ? kobject_get+0x7b/0xe0 [ 229.554498][ T3647] device_add+0x1a2/0xe60 [ 229.558841][ T3647] ? __hrtimer_init+0xd0/0x170 [ 229.563627][ T3647] tty_register_device_attr+0x151/0x2e0 [ 229.569188][ T3647] ? __kmalloc+0x41/0x130 [ 229.573528][ T3647] ? __kfifo_alloc+0xcc/0x100 [ 229.578207][ T3647] ? init_timer_key+0x48/0x100 [ 229.582992][ T3647] ? tty_buffer_init+0x20/0x90 [ 229.587762][ T3647] gsmld_ioctl+0x518/0x750 [ 229.592198][ T3647] ? gsmld_close+0xf0/0xf0 [ 229.596630][ T3647] tty_ioctl+0x733/0xbe0 [ 229.600935][ T3647] ? do_vfs_ioctl+0xa0/0xc00 [ 229.605547][ T3647] ? xfd_validate_state+0x3a/0xe0 [ 229.610583][ T3647] ? __fget_light.part.0+0x12b/0x1a0 [ 229.615883][ T3647] ? tty_release+0x670/0x670 [ 229.620516][ T3647] __x64_sys_ioctl+0xfc/0x140 [ 229.625213][ T3647] do_syscall_64+0x35/0xb0 [ 229.629637][ T3647] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 229.635551][ T3647] RIP: 0033:0x7f26d02e29b9 [ 229.640061][ T3647] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 01 18 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 b8 ff ff ff f7 d8 64 89 01 48 [ 229.659670][ T3647] RSP: 002b:00007f26d026b318 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 229.668075][ T3647] RAX: ffffffffffffffda RBX: 00007f26d03844b8 RCX: 00007f26d02e29b9 [ 229.676037][ T3647] RDX: 0000000020000040 RSI: 00000000404c4701 RDI: 0000000000000004 [ 229.683996][ T3647] RBP: 00007f26d03844b0 R08: 0000000000000000 R09: 0000000000000000 [ 229.691955][ T3647] R10: 000000000000000e R11: 0000000000000246 R12: 00007f26d03310dc [ 229.699934][ T3647] R13: 00007fffb9e7a11f R14: 00007f26d026b400 R15: 0000000000022000 [ 229.707900][ T3647] [ 229.718764][ T3647] kobject_add_internal failed for gsmtty1 with -EEXIST, don't try to register things with the same name in the same directory. [ 236.605168][ T3623] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff88810ec09400 (size 1024): comm "syz-executor252", pid 3630, jiffies 4294960211 (age 24.300s) hex dump (first 32 bytes): 00 bc c0 0e 81 88 ff ff 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [] kmalloc_trace+0x20/0x90 [] gsm_dlci_alloc+0x27/0x180 [] gsmld_ioctl+0x45b/0x750 [] tty_ioctl+0x733/0xbe0 [] __x64_sys_ioctl+0xfc/0x140 [] do_syscall_64+0x35/0xb0 [] entry_SYSCALL_64_after_hwframe+0x63/0xcd BUG: memory leak unreferenced object 0xffff88810ec09400 (size 1024): comm "syz-executor252", pid 3630, jiffies 4294960211 (age 25.470s) hex dump (first 32 bytes): 00 bc c0 0e 81 88 ff ff 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [] kmalloc_trace+0x20/0x90 [] gsm_dlci_alloc+0x27/0x180 [] gsmld_ioctl+0x45b/0x750 [] tty_ioctl+0x733/0xbe0 [] __x64_sys_ioctl+0xfc/0x140 [] do_syscall_64+0x35/0xb0 [] entry_SYSCALL_64_after_hwframe+0x63/0xcd BUG: memory leak unreferenced object 0xffff88810ec09400 (size 1024): comm "syz-executor252", pid 3630, jiffies 4294960211 (age 28.890s) hex dump (first 32 bytes): 00 bc c0 0e 81 88 ff ff 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [] kmalloc_trace+0x20/0x90 [] gsm_dlci_alloc+0x27/0x180 [] gsmld_ioctl+0x45b/0x750 [] tty_ioctl+0x733/0xbe0 [] __x64_sys_ioctl+0xfc/0x140 [] do_syscall_64+0x35/0xb0 [] entry_SYSCALL_64_after_hwframe+0x63/0xcd BUG: memory leak unreferenced object 0xffff88810ec09400 (size 1024): comm "syz-executor252", pid 3630, jiffies 4294960211 (age 28.920s) hex dump (first 32 bytes): 00 bc c0 0e 81 88 ff ff 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [] kmalloc_trace+0x20/0x90 [] gsm_dlci_alloc+0x27/0x180 [] gsmld_ioctl+0x45b/0x750 [] tty_ioctl+0x733/0xbe0 [] __x64_sys_ioctl+0xfc/0x140 [] do_syscall_64+0x35/0xb0 [] entry_SYSCALL_64_after_hwframe+0x63/0xcd BUG: memory leak unreferenced object 0xffff88810ec09400 (size 1024): comm "syz-executor252", pid 3630, jiffies 4294960211 (age 28.960s) hex dump (first 32 bytes): 00 bc c0 0e 81 88 ff ff 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [] kmalloc_trace+0x20/0x90 [] gsm_dlci_alloc+0x27/0x180 [] gsmld_ioctl+0x45b/0x750 [] tty_ioctl+0x733/0xbe0 [] __x64_sys_ioctl+0xfc/0x140 [] do_syscall_64+0x35/0xb0 [] entry_SYSCALL_64_after_hwframe+0x63/0xcd executing program executing program executing program