syzkaller
syzkaller login: [ 21.260963][ T1592] cgroup: Unknown subsys name 'net'
[ 21.349809][ T1592] cgroup: Unknown subsys name 'rlimit'
[ 22.316701][ T1592] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 22.326497][ T1586] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=1586 'syz-fuzzer'
[ 24.064076][ T1583] UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list
[ 24.165335][ T1583] UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list
Warning: Permanently added '10.128.1.7' (ED25519) to the list of known hosts.
2023/09/02 18:16:10 ignoring optional flag "sandboxArg"="0"
2023/09/02 18:16:10 parsed 1 programs
2023/09/02 18:16:11 executed programs: 0
[ 42.902241][ T2116] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 44.307947][ T2541] input: syz0 as /devices/virtual/input/input4
[ 44.314359][ T2541] FAULT_INJECTION: forcing a failure.
[ 44.314359][ T2541] name failslab, interval 1, probability 0, space 0, times 1
[ 44.327062][ T2541] CPU: 1 PID: 2541 Comm: syz-executor.0 Not tainted 6.5.0-rc4-syzkaller #0
[ 44.335617][ T2541] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
[ 44.345665][ T2541] Call Trace:
[ 44.348918][ T2541]
[ 44.351821][ T2541] dump_stack_lvl+0x83/0xd0
[ 44.356296][ T2541] should_fail_ex+0x135/0x140
[ 44.360948][ T2541] should_failslab+0x9/0x20
[ 44.365415][ T2541] slab_pre_alloc_hook+0x48/0x1f0
[ 44.370600][ T2541] ? kobject_set_name_vargs+0x24/0x90
[ 44.376037][ T2541] __kmem_cache_alloc_node+0x4b/0x260
[ 44.381478][ T2541] ? kobject_set_name_vargs+0x24/0x90
[ 44.386826][ T2541] __kmalloc_node_track_caller+0x9a/0x1b0
[ 44.392600][ T2541] kvasprintf_const+0xb5/0x140
[ 44.397416][ T2541] kobject_set_name_vargs+0x24/0x90
[ 44.402852][ T2541] dev_set_name+0x5c/0x80
[ 44.407150][ T2541] evdev_connect+0xc0/0x1d0
[ 44.411811][ T2541] input_register_device+0x543/0x5f0
[ 44.417070][ T2541] uinput_create_device+0xcc/0x190
[ 44.422240][ T2541] uinput_ioctl_handler+0x316/0x760
[ 44.427406][ T2541] __se_sys_ioctl+0x6d/0xb0
[ 44.432100][ T2541] do_syscall_64+0x41/0x90
[ 44.436579][ T2541] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 44.442441][ T2541] RIP: 0033:0x7fe48ce7cae9
[ 44.446823][ T2541] 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
[ 44.466673][ T2541] RSP: 002b:00007fe48db740c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 44.475135][ T2541] RAX: ffffffffffffffda RBX: 00007fe48cf9bf80 RCX: 00007fe48ce7cae9
[ 44.483082][ T2541] RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000003
[ 44.491179][ T2541] RBP: 00007fe48db74120 R08: 0000000000000000 R09: 0000000000000000
[ 44.499465][ T2541] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 44.507489][ T2541] R13: 0000000000000006 R14: 00007fe48cf9bf80 R15: 00007ffdbbdb54f8
[ 44.515439][ T2541]
[ 44.518792][ T2541] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 44.526697][ T2541] #PF: supervisor read access in kernel mode
[ 44.532639][ T2541] #PF: error_code(0x0000) - not-present page
[ 44.538673][ T2541] PGD 101729067 P4D 101729067 PUD 101b7f067 PMD 0
[ 44.545313][ T2541] Oops: 0000 [#1] PREEMPT SMP
[ 44.549951][ T2541] CPU: 1 PID: 2541 Comm: syz-executor.0 Not tainted 6.5.0-rc4-syzkaller #0
[ 44.558629][ T2541] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
[ 44.568748][ T2541] RIP: 0010:strchr+0x7/0x30
[ 44.573418][ T2541] Code: c9 74 0c 49 8d 48 01 4c 39 c2 49 89 c8 75 e5 c3 31 c0 c3 0f 93 c0 0f b6 c0 8d 44 00 ff c3 0f 1f 44 00 00 f3 0f 1e fa 48 89 f8 <0f> b6 0f 40 38 f1 74 10 84 c9 74 0d 0f b6 48 01 48 ff c0 40 38 f1
[ 44.592995][ T2541] RSP: 0018:ffffc9000220bc38 EFLAGS: 00010282
[ 44.599027][ T2541] RAX: 0000000000000000 RBX: ffff888103b6c938 RCX: 0000000000000001
[ 44.606974][ T2541] RDX: ffffc9000220bcf0 RSI: 0000000000000025 RDI: 0000000000000000
[ 44.614915][ T2541] RBP: ffffc9000220bc88 R08: 0000000000000000 R09: 0000000000000000
[ 44.622939][ T2541] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[ 44.630897][ T2541] R13: ffff888103b6c938 R14: 0000000000000cc0 R15: ffffc9000220bcf0
[ 44.639014][ T2541] FS: 00007fe48db746c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
[ 44.648211][ T2541] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 44.654853][ T2541] CR2: 0000000000000000 CR3: 0000000101f75000 CR4: 00000000003506e0
[ 44.662809][ T2541] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 44.670933][ T2541] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 44.678995][ T2541] Call Trace:
[ 44.682440][ T2541]
[ 44.685445][ T2541] ? __die_body+0x5e/0xa0
[ 44.689748][ T2541] ? page_fault_oops+0x377/0x3e0
[ 44.694822][ T2541] ? exc_page_fault+0x4ce/0x690
[ 44.699637][ T2541] ? asm_exc_page_fault+0x26/0x30
[ 44.704631][ T2541] ? strchr+0x7/0x30
[ 44.708509][ T2541] kvasprintf_const+0x3b/0x140
[ 44.713260][ T2541] kobject_set_name_vargs+0x24/0x90
[ 44.718476][ T2541] kobject_add+0x97/0x100
[ 44.722775][ T2541] ? do_raw_spin_unlock+0x67/0x2b0
[ 44.727851][ T2541] ? get_device_parent+0x78/0x1c0
[ 44.732841][ T2541] device_add+0x186/0x460
[ 44.737137][ T2541] cdev_device_add+0x6f/0xc0
[ 44.741708][ T2541] evdev_connect+0x175/0x1d0
[ 44.746275][ T2541] input_register_device+0x543/0x5f0
[ 44.751536][ T2541] uinput_create_device+0xcc/0x190
[ 44.756624][ T2541] uinput_ioctl_handler+0x316/0x760
[ 44.761808][ T2541] __se_sys_ioctl+0x6d/0xb0
[ 44.766455][ T2541] do_syscall_64+0x41/0x90
[ 44.770935][ T2541] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 44.776804][ T2541] RIP: 0033:0x7fe48ce7cae9
[ 44.781398][ T2541] 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
[ 44.800989][ T2541] RSP: 002b:00007fe48db740c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 44.809379][ T2541] RAX: ffffffffffffffda RBX: 00007fe48cf9bf80 RCX: 00007fe48ce7cae9
[ 44.817323][ T2541] RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000003
[ 44.825540][ T2541] RBP: 00007fe48db74120 R08: 0000000000000000 R09: 0000000000000000
[ 44.833588][ T2541] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 44.841528][ T2541] R13: 0000000000000006 R14: 00007fe48cf9bf80 R15: 00007ffdbbdb54f8
[ 44.849556][ T2541]
[ 44.852565][ T2541] Modules linked in:
[ 44.856485][ T2541] CR2: 0000000000000000
[ 44.860868][ T2541] ---[ end trace 0000000000000000 ]---
[ 44.866289][ T2541] RIP: 0010:strchr+0x7/0x30
[ 44.870785][ T2541] Code: c9 74 0c 49 8d 48 01 4c 39 c2 49 89 c8 75 e5 c3 31 c0 c3 0f 93 c0 0f b6 c0 8d 44 00 ff c3 0f 1f 44 00 00 f3 0f 1e fa 48 89 f8 <0f> b6 0f 40 38 f1 74 10 84 c9 74 0d 0f b6 48 01 48 ff c0 40 38 f1
[ 44.890542][ T2541] RSP: 0018:ffffc9000220bc38 EFLAGS: 00010282
[ 44.896587][ T2541] RAX: 0000000000000000 RBX: ffff888103b6c938 RCX: 0000000000000001
[ 44.904723][ T2541] RDX: ffffc9000220bcf0 RSI: 0000000000000025 RDI: 0000000000000000
[ 44.912676][ T2541] RBP: ffffc9000220bc88 R08: 0000000000000000 R09: 0000000000000000
[ 44.920706][ T2541] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[ 44.928654][ T2541] R13: ffff888103b6c938 R14: 0000000000000cc0 R15: ffffc9000220bcf0
[ 44.936593][ T2541] FS: 00007fe48db746c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
[ 44.945678][ T2541] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 44.952234][ T2541] CR2: 0000000000000000 CR3: 0000000101f75000 CR4: 00000000003506e0
[ 44.960205][ T2541] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 44.968161][ T2541] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 44.976306][ T2541] Kernel panic - not syncing: Fatal exception
[ 44.982678][ T2541] Kernel Offset: disabled
[ 44.987151][ T2541] Rebooting in 86400 seconds..