[  OK  ] Started OpenBSD Secure Shell server.
[  OK  ] Reached target Multi-User System.
[  OK  ] Reached target Graphical Interface.
         Starting Update UTMP about System Runlevel Changes...
[  OK  ] Started Update UTMP about System Runlevel Changes.

Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.1.88' (ECDSA) to the list of known hosts.
2021/04/25 07:30:34 fuzzer started
2021/04/25 07:30:34 dialing manager at 10.128.0.163:43723
2021/04/25 07:30:35 syscalls: 1982
2021/04/25 07:30:35 code coverage: enabled
2021/04/25 07:30:35 comparison tracing: enabled
2021/04/25 07:30:35 extra coverage: enabled
2021/04/25 07:30:35 setuid sandbox: enabled
2021/04/25 07:30:35 namespace sandbox: enabled
2021/04/25 07:30:35 Android sandbox: enabled
2021/04/25 07:30:35 fault injection: enabled
2021/04/25 07:30:35 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2021/04/25 07:30:35 net packet injection: /dev/net/tun does not exist
2021/04/25 07:30:35 net device setup: enabled
2021/04/25 07:30:35 concurrency sanitizer: enabled
2021/04/25 07:30:35 devlink PCI setup: PCI device 0000:00:10.0 is not available
2021/04/25 07:30:35 USB emulation: /dev/raw-gadget does not exist
2021/04/25 07:30:35 hci packet injection: /dev/vhci does not exist
2021/04/25 07:30:35 wifi device emulation: /sys/class/mac80211_hwsim/ does not exist
2021/04/25 07:30:35 802.15.4 emulation: /sys/bus/platform/devices/mac802154_hwsim does not exist
2021/04/25 07:30:35 suppressing KCSAN reports in functions: 'generic_write_end' 'tick_nohz_next_event' '__ext4_new_inode' 'dd_has_work' 'xas_clear_mark' 'alloc_pid' 'copy_process' 'lookup_fast' 'ext4_mb_regular_allocator' '__mark_inode_dirty' 'blk_mq_rq_ctx_init' 'n_tty_receive_buf_common' 'blk_mq_sched_dispatch_requests' 'kauditd_thread' 'blk_mq_dispatch_rq_list' 'ext4_free_inodes_count' 'fast_dput' 'step_into' '__xa_clear_mark' 'cgroup_procs_write_start' 'ext4_free_inode' 'do_signal_stop' 
2021/04/25 07:30:35 fetching corpus: 0, signal 0/2000 (executing program)
2021/04/25 07:30:35 fetching corpus: 50, signal 11535/15289 (executing program)
2021/04/25 07:30:35 fetching corpus: 100, signal 17782/23259 (executing program)
2021/04/25 07:30:35 fetching corpus: 150, signal 27200/34039 (executing program)
2021/04/25 07:30:35 fetching corpus: 200, signal 32941/41207 (executing program)
2021/04/25 07:30:36 fetching corpus: 250, signal 38378/47944 (executing program)
2021/04/25 07:30:36 fetching corpus: 300, signal 41736/52622 (executing program)
2021/04/25 07:30:36 fetching corpus: 350, signal 43961/56226 (executing program)
2021/04/25 07:30:36 fetching corpus: 400, signal 46211/59862 (executing program)
2021/04/25 07:30:36 fetching corpus: 450, signal 50014/64774 (executing program)
2021/04/25 07:30:36 fetching corpus: 500, signal 53608/69421 (executing program)
2021/04/25 07:30:36 fetching corpus: 550, signal 56337/73236 (executing program)
2021/04/25 07:30:36 fetching corpus: 600, signal 58362/76362 (executing program)
2021/04/25 07:30:36 fetching corpus: 650, signal 62138/80986 (executing program)
2021/04/25 07:30:36 fetching corpus: 700, signal 63798/83690 (executing program)
2021/04/25 07:30:36 fetching corpus: 750, signal 65929/86806 (executing program)
2021/04/25 07:30:36 fetching corpus: 800, signal 67657/89528 (executing program)
2021/04/25 07:30:36 fetching corpus: 850, signal 69270/92171 (executing program)
2021/04/25 07:30:36 fetching corpus: 900, signal 71285/95078 (executing program)
2021/04/25 07:30:36 fetching corpus: 950, signal 75191/99446 (executing program)
2021/04/25 07:30:36 fetching corpus: 1000, signal 76551/101715 (executing program)
2021/04/25 07:30:36 fetching corpus: 1050, signal 77703/103793 (executing program)
2021/04/25 07:30:36 fetching corpus: 1100, signal 79236/106143 (executing program)
2021/04/25 07:30:36 fetching corpus: 1150, signal 80489/108283 (executing program)
2021/04/25 07:30:36 fetching corpus: 1199, signal 82777/111085 (executing program)
2021/04/25 07:30:36 fetching corpus: 1249, signal 84556/113505 (executing program)
2021/04/25 07:30:36 fetching corpus: 1299, signal 86146/115722 (executing program)
2021/04/25 07:30:36 fetching corpus: 1349, signal 88076/118134 (executing program)
2021/04/25 07:30:36 fetching corpus: 1399, signal 89771/120384 (executing program)
2021/04/25 07:30:36 fetching corpus: 1449, signal 91265/122446 (executing program)
2021/04/25 07:30:36 fetching corpus: 1499, signal 92113/124089 (executing program)
2021/04/25 07:30:36 fetching corpus: 1549, signal 93432/125982 (executing program)
2021/04/25 07:30:36 fetching corpus: 1599, signal 94597/127788 (executing program)
2021/04/25 07:30:36 fetching corpus: 1649, signal 96279/129867 (executing program)
2021/04/25 07:30:36 fetching corpus: 1699, signal 97367/131552 (executing program)
2021/04/25 07:30:37 fetching corpus: 1749, signal 99213/133678 (executing program)
2021/04/25 07:30:37 fetching corpus: 1799, signal 100245/135284 (executing program)
2021/04/25 07:30:37 fetching corpus: 1849, signal 101168/136758 (executing program)
2021/04/25 07:30:37 fetching corpus: 1899, signal 104059/139458 (executing program)
2021/04/25 07:30:37 fetching corpus: 1949, signal 104685/140759 (executing program)
2021/04/25 07:30:37 fetching corpus: 1999, signal 105750/142251 (executing program)
2021/04/25 07:30:37 fetching corpus: 2049, signal 107580/144155 (executing program)
2021/04/25 07:30:37 fetching corpus: 2099, signal 108841/145682 (executing program)
2021/04/25 07:30:37 fetching corpus: 2149, signal 109640/146993 (executing program)
2021/04/25 07:30:37 fetching corpus: 2198, signal 111393/148761 (executing program)
2021/04/25 07:30:37 fetching corpus: 2248, signal 112623/150202 (executing program)
2021/04/25 07:30:37 fetching corpus: 2298, signal 113919/151729 (executing program)
2021/04/25 07:30:37 fetching corpus: 2348, signal 114686/152955 (executing program)
2021/04/25 07:30:37 fetching corpus: 2398, signal 115406/154108 (executing program)
2021/04/25 07:30:37 fetching corpus: 2448, signal 117135/155682 (executing program)
2021/04/25 07:30:37 fetching corpus: 2498, signal 118289/156991 (executing program)
2021/04/25 07:30:37 fetching corpus: 2548, signal 118871/158024 (executing program)
2021/04/25 07:30:37 fetching corpus: 2598, signal 119563/159085 (executing program)
2021/04/25 07:30:37 fetching corpus: 2648, signal 120504/160271 (executing program)
2021/04/25 07:30:37 fetching corpus: 2698, signal 121072/161277 (executing program)
2021/04/25 07:30:37 fetching corpus: 2748, signal 121965/162380 (executing program)
2021/04/25 07:30:37 fetching corpus: 2798, signal 122773/163420 (executing program)
2021/04/25 07:30:37 fetching corpus: 2848, signal 123711/164547 (executing program)
2021/04/25 07:30:37 fetching corpus: 2898, signal 124389/165525 (executing program)
2021/04/25 07:30:37 fetching corpus: 2948, signal 124903/166459 (executing program)
2021/04/25 07:30:37 fetching corpus: 2998, signal 125856/167492 (executing program)
2021/04/25 07:30:37 fetching corpus: 3048, signal 126800/168492 (executing program)
2021/04/25 07:30:37 fetching corpus: 3098, signal 127538/169403 (executing program)
2021/04/25 07:30:37 fetching corpus: 3148, signal 127975/170219 (executing program)
2021/04/25 07:30:37 fetching corpus: 3198, signal 128675/171081 (executing program)
2021/04/25 07:30:38 fetching corpus: 3248, signal 129064/171878 (executing program)
2021/04/25 07:30:38 fetching corpus: 3298, signal 129711/172730 (executing program)
2021/04/25 07:30:38 fetching corpus: 3348, signal 130269/173533 (executing program)
2021/04/25 07:30:38 fetching corpus: 3398, signal 130715/174329 (executing program)
2021/04/25 07:30:38 fetching corpus: 3448, signal 131170/175077 (executing program)
2021/04/25 07:30:38 fetching corpus: 3498, signal 131859/175839 (executing program)
2021/04/25 07:30:38 fetching corpus: 3548, signal 132508/176603 (executing program)
2021/04/25 07:30:38 fetching corpus: 3598, signal 133055/177323 (executing program)
2021/04/25 07:30:38 fetching corpus: 3648, signal 133708/178087 (executing program)
2021/04/25 07:30:38 fetching corpus: 3698, signal 134578/178861 (executing program)
2021/04/25 07:30:38 fetching corpus: 3748, signal 135401/179592 (executing program)
2021/04/25 07:30:38 fetching corpus: 3798, signal 136040/180285 (executing program)
2021/04/25 07:30:38 fetching corpus: 3848, signal 136515/180918 (executing program)
2021/04/25 07:30:38 fetching corpus: 3898, signal 137319/181647 (executing program)
2021/04/25 07:30:38 fetching corpus: 3948, signal 137704/182273 (executing program)
2021/04/25 07:30:38 fetching corpus: 3998, signal 138084/182894 (executing program)
2021/04/25 07:30:38 fetching corpus: 4048, signal 138521/183478 (executing program)
2021/04/25 07:30:38 fetching corpus: 4098, signal 138968/184098 (executing program)
2021/04/25 07:30:38 fetching corpus: 4148, signal 139732/184718 (executing program)
2021/04/25 07:30:38 fetching corpus: 4198, signal 140381/185284 (executing program)
2021/04/25 07:30:38 fetching corpus: 4248, signal 141073/185918 (executing program)
2021/04/25 07:30:38 fetching corpus: 4298, signal 141702/186517 (executing program)
2021/04/25 07:30:38 fetching corpus: 4348, signal 142452/187088 (executing program)
2021/04/25 07:30:38 fetching corpus: 4398, signal 143152/187657 (executing program)
2021/04/25 07:30:38 fetching corpus: 4448, signal 143727/188205 (executing program)
2021/04/25 07:30:38 fetching corpus: 4498, signal 144197/188699 (executing program)
2021/04/25 07:30:38 fetching corpus: 4548, signal 144645/189200 (executing program)
2021/04/25 07:30:38 fetching corpus: 4598, signal 145585/189703 (executing program)
2021/04/25 07:30:38 fetching corpus: 4648, signal 145960/190172 (executing program)
2021/04/25 07:30:38 fetching corpus: 4698, signal 146514/190650 (executing program)
2021/04/25 07:30:38 fetching corpus: 4748, signal 146820/190849 (executing program)
2021/04/25 07:30:39 fetching corpus: 4798, signal 147634/190849 (executing program)
2021/04/25 07:30:39 fetching corpus: 4848, signal 148142/190853 (executing program)
2021/04/25 07:30:39 fetching corpus: 4898, signal 148542/190853 (executing program)
2021/04/25 07:30:39 fetching corpus: 4948, signal 149204/190853 (executing program)
2021/04/25 07:30:39 fetching corpus: 4998, signal 149742/190853 (executing program)
2021/04/25 07:30:39 fetching corpus: 5048, signal 150145/190853 (executing program)
2021/04/25 07:30:39 fetching corpus: 5098, signal 150641/190853 (executing program)
2021/04/25 07:30:39 fetching corpus: 5148, signal 151200/190853 (executing program)
2021/04/25 07:30:39 fetching corpus: 5198, signal 151696/190853 (executing program)
2021/04/25 07:30:39 fetching corpus: 5248, signal 152124/190853 (executing program)
2021/04/25 07:30:39 fetching corpus: 5298, signal 152645/190853 (executing program)
2021/04/25 07:30:39 fetching corpus: 5348, signal 153519/190853 (executing program)
2021/04/25 07:30:39 fetching corpus: 5398, signal 154176/190853 (executing program)
2021/04/25 07:30:39 fetching corpus: 5448, signal 154537/190853 (executing program)
2021/04/25 07:30:39 fetching corpus: 5498, signal 154939/190853 (executing program)
2021/04/25 07:30:39 fetching corpus: 5548, signal 155455/190863 (executing program)
2021/04/25 07:30:39 fetching corpus: 5598, signal 155816/190863 (executing program)
2021/04/25 07:30:39 fetching corpus: 5648, signal 156215/190863 (executing program)
2021/04/25 07:30:39 fetching corpus: 5698, signal 156547/190863 (executing program)
2021/04/25 07:30:39 fetching corpus: 5748, signal 156942/190863 (executing program)
2021/04/25 07:30:39 fetching corpus: 5798, signal 157323/190863 (executing program)
2021/04/25 07:30:39 fetching corpus: 5848, signal 157986/190863 (executing program)
2021/04/25 07:30:39 fetching corpus: 5898, signal 158504/190863 (executing program)
2021/04/25 07:30:39 fetching corpus: 5948, signal 158822/190863 (executing program)
2021/04/25 07:30:39 fetching corpus: 5998, signal 159135/190863 (executing program)
2021/04/25 07:30:39 fetching corpus: 6048, signal 159389/190864 (executing program)
2021/04/25 07:30:39 fetching corpus: 6098, signal 159891/190864 (executing program)
2021/04/25 07:30:39 fetching corpus: 6148, signal 160339/190882 (executing program)
2021/04/25 07:30:39 fetching corpus: 6198, signal 160923/190882 (executing program)
2021/04/25 07:30:39 fetching corpus: 6248, signal 161446/190882 (executing program)
2021/04/25 07:30:39 fetching corpus: 6298, signal 162024/190882 (executing program)
2021/04/25 07:30:39 fetching corpus: 6348, signal 162723/190882 (executing program)
2021/04/25 07:30:40 fetching corpus: 6398, signal 163083/190882 (executing program)
2021/04/25 07:30:40 fetching corpus: 6447, signal 163408/190882 (executing program)
2021/04/25 07:30:40 fetching corpus: 6497, signal 163896/190882 (executing program)
2021/04/25 07:30:40 fetching corpus: 6547, signal 164494/190882 (executing program)
2021/04/25 07:30:40 fetching corpus: 6597, signal 165157/190887 (executing program)
2021/04/25 07:30:40 fetching corpus: 6647, signal 165498/190887 (executing program)
2021/04/25 07:30:40 fetching corpus: 6697, signal 165771/190887 (executing program)
2021/04/25 07:30:40 fetching corpus: 6747, signal 166121/190887 (executing program)
2021/04/25 07:30:40 fetching corpus: 6797, signal 166437/190887 (executing program)
2021/04/25 07:30:40 fetching corpus: 6847, signal 166867/190887 (executing program)
2021/04/25 07:30:40 fetching corpus: 6897, signal 167079/190889 (executing program)
2021/04/25 07:30:40 fetching corpus: 6947, signal 167686/190889 (executing program)
2021/04/25 07:30:40 fetching corpus: 6997, signal 168216/190889 (executing program)
2021/04/25 07:30:40 fetching corpus: 7047, signal 168651/190889 (executing program)
2021/04/25 07:30:40 fetching corpus: 7097, signal 169070/190889 (executing program)
2021/04/25 07:30:40 fetching corpus: 7147, signal 169458/190889 (executing program)
2021/04/25 07:30:40 fetching corpus: 7197, signal 169825/190889 (executing program)
2021/04/25 07:30:40 fetching corpus: 7247, signal 170204/190889 (executing program)
2021/04/25 07:30:40 fetching corpus: 7297, signal 170466/190889 (executing program)
2021/04/25 07:30:40 fetching corpus: 7347, signal 170916/190889 (executing program)
2021/04/25 07:30:40 fetching corpus: 7397, signal 171236/190889 (executing program)
2021/04/25 07:30:40 fetching corpus: 7447, signal 171638/190891 (executing program)
2021/04/25 07:30:40 fetching corpus: 7497, signal 171963/190891 (executing program)
2021/04/25 07:30:40 fetching corpus: 7547, signal 172642/190896 (executing program)
2021/04/25 07:30:40 fetching corpus: 7597, signal 172954/190896 (executing program)
2021/04/25 07:30:40 fetching corpus: 7647, signal 173295/190896 (executing program)
2021/04/25 07:30:40 fetching corpus: 7697, signal 173734/190896 (executing program)
2021/04/25 07:30:40 fetching corpus: 7747, signal 173977/190896 (executing program)
2021/04/25 07:30:40 fetching corpus: 7797, signal 174648/190896 (executing program)
2021/04/25 07:30:40 fetching corpus: 7847, signal 175186/190902 (executing program)
syzkaller login: [   24.357436][ T1751] ==================================================================
[   24.358880][ T1751] BUG: KCSAN: data-race in __send_signal / futex_wait_queue_me
[   24.359935][ T1751] 
[   24.360283][ T1751] write to 0xffff88810549c02c of 4 bytes by task 1753 on cpu 0:
[   24.361359][ T1751]  futex_wait_queue_me+0x198/0x260
[   24.362138][ T1751]  futex_wait+0x143/0x430
[   24.362750][ T1751]  do_futex+0x9e8/0x1e10
[   24.363418][ T1751]  __se_sys_futex+0x2a8/0x390
[   24.364153][ T1751]  __x64_sys_futex+0x74/0x80
[   24.364856][ T1751]  do_syscall_64+0x34/0x50
[   24.365481][ T1751]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   24.366344][ T1751] 
[   24.366694][ T1751] read to 0xffff88810549c02c of 4 bytes by task 1751 on cpu 1:
[   24.367713][ T1751]  __send_signal+0x27f/0x760
[   24.368410][ T1751]  send_signal+0x38e/0x3d0
[   24.369016][ T1751]  do_send_specific+0x13d/0x1c0
[   24.369745][ T1751]  __x64_sys_tgkill+0x108/0x140
[   24.370460][ T1751]  do_syscall_64+0x34/0x50
[   24.371213][ T1751]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   24.372058][ T1751] 
[   24.372406][ T1751] Reported by Kernel Concurrency Sanitizer on:
[   24.373259][ T1751] CPU: 1 PID: 1751 Comm: syz-fuzzer Not tainted 5.12.0-rc8-syzkaller #0
[   24.374433][ T1751] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   24.375905][ T1751] ==================================================================
2021/04/25 07:30:40 fetching corpus: 7897, signal 175617/190902 (executing program)
2021/04/25 07:30:40 fetching corpus: 7947, signal 176127/190902 (executing program)
2021/04/25 07:30:41 fetching corpus: 7997, signal 176554/190902 (executing program)
2021/04/25 07:30:41 fetching corpus: 8047, signal 176966/190902 (executing program)
2021/04/25 07:30:41 fetching corpus: 8097, signal 177532/190902 (executing program)
2021/04/25 07:30:41 fetching corpus: 8147, signal 177951/190902 (executing program)
2021/04/25 07:30:41 fetching corpus: 8197, signal 178225/190932 (executing program)
2021/04/25 07:30:41 fetching corpus: 8247, signal 178595/190932 (executing program)
2021/04/25 07:30:41 fetching corpus: 8297, signal 178916/190932 (executing program)
2021/04/25 07:30:41 fetching corpus: 8347, signal 179324/190932 (executing program)
2021/04/25 07:30:41 fetching corpus: 8397, signal 179594/190932 (executing program)
2021/04/25 07:30:41 fetching corpus: 8447, signal 180143/190932 (executing program)
2021/04/25 07:30:41 fetching corpus: 8497, signal 180453/190932 (executing program)
2021/04/25 07:30:41 fetching corpus: 8547, signal 180752/190932 (executing program)
2021/04/25 07:30:41 fetching corpus: 8597, signal 180976/190932 (executing program)
2021/04/25 07:30:41 fetching corpus: 8647, signal 181204/190932 (executing program)
2021/04/25 07:30:41 fetching corpus: 8697, signal 181528/190935 (executing program)
2021/04/25 07:30:41 fetching corpus: 8747, signal 181861/190935 (executing program)
2021/04/25 07:30:41 fetching corpus: 8797, signal 182178/190935 (executing program)
2021/04/25 07:30:41 fetching corpus: 8847, signal 182555/190935 (executing program)
2021/04/25 07:30:41 fetching corpus: 8897, signal 183084/190935 (executing program)
2021/04/25 07:30:41 fetching corpus: 8947, signal 183366/190935 (executing program)
2021/04/25 07:30:41 fetching corpus: 8997, signal 183836/190935 (executing program)
2021/04/25 07:30:41 fetching corpus: 9047, signal 184202/190935 (executing program)
2021/04/25 07:30:41 fetching corpus: 9097, signal 184587/190935 (executing program)
2021/04/25 07:30:41 fetching corpus: 9147, signal 184876/190961 (executing program)
2021/04/25 07:30:41 fetching corpus: 9197, signal 185153/190961 (executing program)
2021/04/25 07:30:41 fetching corpus: 9247, signal 185491/190961 (executing program)
2021/04/25 07:30:41 fetching corpus: 9297, signal 185772/190961 (executing program)
2021/04/25 07:30:41 fetching corpus: 9347, signal 186210/190961 (executing program)
2021/04/25 07:30:41 fetching corpus: 9397, signal 186498/190963 (executing program)
2021/04/25 07:30:41 fetching corpus: 9447, signal 186874/190963 (executing program)
2021/04/25 07:30:41 fetching corpus: 9497, signal 187197/190963 (executing program)
2021/04/25 07:30:41 fetching corpus: 9547, signal 187426/190963 (executing program)
2021/04/25 07:30:41 fetching corpus: 9597, signal 187777/190969 (executing program)
2021/04/25 07:30:41 fetching corpus: 9647, signal 188024/190969 (executing program)
2021/04/25 07:30:41 fetching corpus: 9697, signal 188262/190969 (executing program)
2021/04/25 07:30:42 fetching corpus: 9747, signal 188758/190979 (executing program)
2021/04/25 07:30:42 fetching corpus: 9797, signal 188987/190982 (executing program)
2021/04/25 07:30:42 fetching corpus: 9823, signal 189132/190984 (executing program)
2021/04/25 07:30:42 fetching corpus: 9823, signal 189132/190984 (executing program)
2021/04/25 07:30:43 starting 6 fuzzer processes
07:30:43 executing program 0:
r0 = syz_open_dev$evdev(&(0x7f00000000c0), 0x0, 0x0)
ioctl$EVIOCSMASK(r0, 0x40104593, &(0x7f0000000140)={0x0, 0x0, 0x0})
ioctl$EVIOCGMASK(r0, 0x80104592, &(0x7f0000000080)={0x0, 0x0, 0x0})

07:30:43 executing program 1:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='/proc/self/exe\x00', 0x0, 0x0)
mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800003, 0x12, r0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000040)='/proc/self/exe\x00', 0x0, 0x0)
preadv(r1, &(0x7f0000000280), 0x18, 0xd9f, 0x0)
r2 = syz_open_dev$usbmon(&(0x7f0000000000), 0x0, 0x0)
ioctl$MON_IOCX_GET(r2, 0x40189206, 0x0)

07:30:43 executing program 5:
openat(0xffffffffffffff9c, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0)
perf_event_open(&(0x7f0000000180)={0x6, 0x80, 0x0, 0x0, 0x0, 0x0, 0xfffffff6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000000000), 0xc}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}, 0x0, 0x0, 0xffffffffffffffff, 0x0)

07:30:43 executing program 2:
r0 = socket$packet(0x11, 0x2, 0x300)
unshare(0x400)
setsockopt$packet_fanout(r0, 0x107, 0xc, 0x0, 0x0)

07:30:43 executing program 3:
set_mempolicy(0x3, &(0x7f0000000280)=0xfffffffffffffff9, 0x3)
r0 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000040)='cpuset\x00')
preadv(r0, &(0x7f0000000340)=[{&(0x7f0000000180)=""/208, 0xd0}], 0x1, 0x0, 0x0)

07:30:43 executing program 4:
r0 = syz_open_dev$tty20(0xc, 0x4, 0x0)
fstat(r0, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, <r1=>0x0})
setreuid(0xee00, r1)
r2 = socket$inet_tcp(0x2, 0x1, 0x0)
setsockopt$sock_int(r2, 0x1, 0x2e, &(0x7f0000000080)=0x80, 0x18)

[   27.035538][   T25] audit: type=1400 audit(1619335843.512:8): avc:  denied  { execmem } for  pid=1763 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
[   27.175048][ T1769] cgroup: Unknown subsys name 'perf_event'
[   27.181504][ T1769] cgroup: Unknown subsys name 'net_cls'
[   27.188179][ T1770] cgroup: Unknown subsys name 'perf_event'
[   27.203788][ T1770] cgroup: Unknown subsys name 'net_cls'
[   27.213913][ T1771] cgroup: Unknown subsys name 'perf_event'
[   27.218376][ T1773] cgroup: Unknown subsys name 'perf_event'
[   27.219896][ T1771] cgroup: Unknown subsys name 'net_cls'
[   27.226028][ T1773] cgroup: Unknown subsys name 'net_cls'
[   27.250114][ T1778] cgroup: Unknown subsys name 'perf_event'
[   27.270459][ T1778] cgroup: Unknown subsys name 'net_cls'
[   27.273278][ T1788] cgroup: Unknown subsys name 'perf_event'
[   27.283190][ T1788] cgroup: Unknown subsys name 'net_cls'
07:30:47 executing program 1:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='/proc/self/exe\x00', 0x0, 0x0)
mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800003, 0x12, r0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000040)='/proc/self/exe\x00', 0x0, 0x0)
preadv(r1, &(0x7f0000000280), 0x18, 0xd9f, 0x0)
r2 = syz_open_dev$usbmon(&(0x7f0000000000), 0x0, 0x0)
ioctl$MON_IOCX_GET(r2, 0x40189206, 0x0)

07:30:47 executing program 1:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='/proc/self/exe\x00', 0x0, 0x0)
mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800003, 0x12, r0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000040)='/proc/self/exe\x00', 0x0, 0x0)
preadv(r1, &(0x7f0000000280), 0x18, 0xd9f, 0x0)
r2 = syz_open_dev$usbmon(&(0x7f0000000000), 0x0, 0x0)
ioctl$MON_IOCX_GET(r2, 0x40189206, 0x0)

07:30:47 executing program 0:
r0 = syz_open_dev$evdev(&(0x7f00000000c0), 0x0, 0x0)
ioctl$EVIOCSMASK(r0, 0x40104593, &(0x7f0000000140)={0x0, 0x0, 0x0})
ioctl$EVIOCGMASK(r0, 0x80104592, &(0x7f0000000080)={0x0, 0x0, 0x0})

07:30:47 executing program 1:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='/proc/self/exe\x00', 0x0, 0x0)
mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800003, 0x12, r0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000040)='/proc/self/exe\x00', 0x0, 0x0)
preadv(r1, &(0x7f0000000280), 0x18, 0xd9f, 0x0)
r2 = syz_open_dev$usbmon(&(0x7f0000000000), 0x0, 0x0)
ioctl$MON_IOCX_GET(r2, 0x40189206, 0x0)

07:30:47 executing program 2:
r0 = socket$packet(0x11, 0x2, 0x300)
unshare(0x400)
setsockopt$packet_fanout(r0, 0x107, 0xc, 0x0, 0x0)

07:30:47 executing program 0:
r0 = syz_open_dev$evdev(&(0x7f00000000c0), 0x0, 0x0)
ioctl$EVIOCSMASK(r0, 0x40104593, &(0x7f0000000140)={0x0, 0x0, 0x0})
ioctl$EVIOCGMASK(r0, 0x80104592, &(0x7f0000000080)={0x0, 0x0, 0x0})

07:30:47 executing program 1:
r0 = syz_open_dev$evdev(&(0x7f0000000000), 0x0, 0x0)
ioctl$EVIOCGPROP(r0, 0x40044581, 0x0)

07:30:47 executing program 2:
r0 = socket$packet(0x11, 0x2, 0x300)
unshare(0x400)
setsockopt$packet_fanout(r0, 0x107, 0xc, 0x0, 0x0)

07:30:47 executing program 5:
openat(0xffffffffffffff9c, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0)
perf_event_open(&(0x7f0000000180)={0x6, 0x80, 0x0, 0x0, 0x0, 0x0, 0xfffffff6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000000000), 0xc}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}, 0x0, 0x0, 0xffffffffffffffff, 0x0)

07:30:47 executing program 2:
r0 = socket$packet(0x11, 0x2, 0x300)
unshare(0x400)
setsockopt$packet_fanout(r0, 0x107, 0xc, 0x0, 0x0)

07:30:47 executing program 0:
r0 = syz_open_dev$evdev(&(0x7f00000000c0), 0x0, 0x0)
ioctl$EVIOCSMASK(r0, 0x40104593, &(0x7f0000000140)={0x0, 0x0, 0x0})
ioctl$EVIOCGMASK(r0, 0x80104592, &(0x7f0000000080)={0x0, 0x0, 0x0})

07:30:47 executing program 4:
r0 = syz_open_dev$tty20(0xc, 0x4, 0x0)
fstat(r0, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, <r1=>0x0})
setreuid(0xee00, r1)
r2 = socket$inet_tcp(0x2, 0x1, 0x0)
setsockopt$sock_int(r2, 0x1, 0x2e, &(0x7f0000000080)=0x80, 0x18)

07:30:47 executing program 3:
set_mempolicy(0x3, &(0x7f0000000280)=0xfffffffffffffff9, 0x3)
r0 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000040)='cpuset\x00')
preadv(r0, &(0x7f0000000340)=[{&(0x7f0000000180)=""/208, 0xd0}], 0x1, 0x0, 0x0)

07:30:47 executing program 1:
r0 = syz_open_dev$evdev(&(0x7f0000000000), 0x0, 0x0)
ioctl$EVIOCGPROP(r0, 0x40044581, 0x0)

07:30:47 executing program 0:
set_mempolicy(0x3, &(0x7f0000000280)=0xfffffffffffffff9, 0x3)
r0 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000040)='cpuset\x00')
preadv(r0, &(0x7f0000000340)=[{&(0x7f0000000180)=""/208, 0xd0}], 0x1, 0x0, 0x0)

07:30:47 executing program 5:
openat(0xffffffffffffff9c, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0)
perf_event_open(&(0x7f0000000180)={0x6, 0x80, 0x0, 0x0, 0x0, 0x0, 0xfffffff6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000000000), 0xc}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}, 0x0, 0x0, 0xffffffffffffffff, 0x0)

07:30:47 executing program 2:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0)
mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800003, 0x12, r0, 0x0)
preadv(r0, &(0x7f0000000280), 0x18, 0xd9f, 0x0)
syz_mount_image$iso9660(&(0x7f0000000700), &(0x7f0000000740)='./file0\x00', 0x0, 0x0, &(0x7f0000000800), 0x0, &(0x7f0000000840)={[{@block={'block', 0x3d, 0x200}}]})

07:30:47 executing program 1:
r0 = syz_open_dev$evdev(&(0x7f0000000000), 0x0, 0x0)
ioctl$EVIOCGPROP(r0, 0x40044581, 0x0)

07:30:47 executing program 0:
set_mempolicy(0x3, &(0x7f0000000280)=0xfffffffffffffff9, 0x3)
r0 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000040)='cpuset\x00')
preadv(r0, &(0x7f0000000340)=[{&(0x7f0000000180)=""/208, 0xd0}], 0x1, 0x0, 0x0)

07:30:47 executing program 4:
r0 = syz_open_dev$tty20(0xc, 0x4, 0x0)
fstat(r0, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, <r1=>0x0})
setreuid(0xee00, r1)
r2 = socket$inet_tcp(0x2, 0x1, 0x0)
setsockopt$sock_int(r2, 0x1, 0x2e, &(0x7f0000000080)=0x80, 0x18)

07:30:47 executing program 3:
set_mempolicy(0x3, &(0x7f0000000280)=0xfffffffffffffff9, 0x3)
r0 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000040)='cpuset\x00')
preadv(r0, &(0x7f0000000340)=[{&(0x7f0000000180)=""/208, 0xd0}], 0x1, 0x0, 0x0)

07:30:47 executing program 5:
openat(0xffffffffffffff9c, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0)
perf_event_open(&(0x7f0000000180)={0x6, 0x80, 0x0, 0x0, 0x0, 0x0, 0xfffffff6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000000000), 0xc}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}, 0x0, 0x0, 0xffffffffffffffff, 0x0)

07:30:47 executing program 1:
r0 = syz_open_dev$evdev(&(0x7f0000000000), 0x0, 0x0)
ioctl$EVIOCGPROP(r0, 0x40044581, 0x0)

07:30:47 executing program 0:
set_mempolicy(0x3, &(0x7f0000000280)=0xfffffffffffffff9, 0x3)
r0 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000040)='cpuset\x00')
preadv(r0, &(0x7f0000000340)=[{&(0x7f0000000180)=""/208, 0xd0}], 0x1, 0x0, 0x0)

07:30:47 executing program 4:
r0 = syz_open_dev$tty20(0xc, 0x4, 0x0)
fstat(r0, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, <r1=>0x0})
setreuid(0xee00, r1)
r2 = socket$inet_tcp(0x2, 0x1, 0x0)
setsockopt$sock_int(r2, 0x1, 0x2e, &(0x7f0000000080)=0x80, 0x18)

[   31.421858][ T4563] ISOFS: Unable to identify CD-ROM format.
07:30:48 executing program 2:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0)
mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800003, 0x12, r0, 0x0)
preadv(r0, &(0x7f0000000280), 0x18, 0xd9f, 0x0)
syz_mount_image$iso9660(&(0x7f0000000700), &(0x7f0000000740)='./file0\x00', 0x0, 0x0, &(0x7f0000000800), 0x0, &(0x7f0000000840)={[{@block={'block', 0x3d, 0x200}}]})

07:30:48 executing program 3:
set_mempolicy(0x3, &(0x7f0000000280)=0xfffffffffffffff9, 0x3)
r0 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000040)='cpuset\x00')
preadv(r0, &(0x7f0000000340)=[{&(0x7f0000000180)=""/208, 0xd0}], 0x1, 0x0, 0x0)

07:30:48 executing program 0:
r0 = openat$vcsu(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
fsetxattr$system_posix_acl(r0, &(0x7f0000000040)='system.posix_acl_access\x00', &(0x7f0000000200)={{}, {}, [], {}, [], {}, {0x20, 0x6}}, 0x24, 0x0)

07:30:48 executing program 1:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='/proc/self/exe\x00', 0x0, 0x0)
mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800003, 0x12, r0, 0x0)
preadv(r0, &(0x7f0000000280), 0x18, 0xd9f, 0x0)
clone(0x100, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff)
r1 = gettid()
wait4(0x0, 0x0, 0x80000002, 0x0)
vmsplice(0xffffffffffffffff, &(0x7f00000000c0)=[{0x0}, {0x0}, {0x0}, {&(0x7f0000000300)="66530700ae897094e7b126b097eaa769bc6d05c44b3f7eea8deb1bd34e677d114b7691d8b125fa654b7d0000000000007209ec1aebcb67f9e613b0eedcc53ee19ed6ae74a3af432786ee1cbf4d80d39f5ccefc5a7c34877a3854f4ccd7b0dfa6430a4a0ad4ee0ae91ceb80ab2f45562fdbb236c66a9de0792ec3d2f3dd8a4771611043902bfa61a1a05fb0bb33d057c22faccdda85f01e9230e804b9bf968a3d3818f1a7dad71736f0e60b8d362a57eeddd3d0c34d7f4c635554c47f4d15077a774aa89a72518a1b7dcc513f031a62907bf868751eff65314e16524fbb6e19850f245b518dbfd6b9937c90e87d4776", 0xef}], 0x4, 0x0)
ptrace$setopts(0x4206, r1, 0x0, 0x0)
tkill(r1, 0x37)
ptrace$cont(0x18, r1, 0x0, 0x0)
ptrace$setregs(0xd, r1, 0x0, &(0x7f0000000080))
ptrace$cont(0x9, r1, 0x0, 0x0)

07:30:48 executing program 5:
r0 = add_key$keyring(&(0x7f00000002c0), &(0x7f0000000300)={'syz', 0x1}, 0x0, 0x0, 0xfffffffffffffffd)
add_key$user(&(0x7f0000000000), 0x0, 0x0, 0x0, 0xfffffffffffffffe)
r1 = add_key$keyring(&(0x7f0000000280), &(0x7f0000000240)={'syz', 0x3}, 0x0, 0x0, r0)
add_key$keyring(&(0x7f0000000240), 0x0, 0x0, 0x0, 0xffffffffffffffff)
request_key(&(0x7f0000000380)='dns_resolver\x00', &(0x7f0000000580)={'syz', 0x1}, &(0x7f0000000100)='\x90\xe3q&\x9d\x94q\x94R\xe2\xa6\xa7\x84|\x9fl\'\x94\fP\xe5\xdb\xea9a\x02|Bo\x11\x90\xf3U\x8f\xb1\x1d\xf8w[\xbe\xf7\x9d\xacM6\x9e\xc2\xc9\xbb+\x95\x977d\x01\x00\x00\x00\x01\x00\x00\x00\x83\x1aRV\xff7\n\xf7\xae\xc0\xdf\xb2\x8e\x8a\x90\xe5F\x8a\xe8H\xb9e\r\x01\x02\xdb\x196\xf7\xe1\xd0t&(\xcfu', 0x0)
add_key(&(0x7f0000000180)='dns_resolver\x00', &(0x7f0000000200)={'syz', 0x1}, &(0x7f00000004c0)="dee7030022cf9e5e1dbac27b0426fc0299c40800000000000000c894f365ae68edf335abf35ec53d6751467ebd2c187491bcab2c8d34fec505fc8a14622dba33ff9b054eb7e8a5bc4ab2719cb230328931deb95ef3fcafb1ce27743a93f4715976ede8860ab49c3a4f51ab0124b50c3362201a307df03000", 0x78, r1)
request_key(&(0x7f0000000340)='dns_resolver\x00', &(0x7f00000001c0)={'syz', 0x1}, 0x0, 0x0)

07:30:48 executing program 3:
r0 = socket$inet(0x2, 0x3, 0x5)
setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f0000000340)={0x1, {{0x2, 0x0, @multicast1}}}, 0x90)

07:30:48 executing program 4:
set_mempolicy(0x3, &(0x7f0000000140)=0x8001, 0x4)
r0 = syz_io_uring_setup(0x2de5, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, &(0x7f0000002000/0x2000)=nil, &(0x7f0000400000/0xc00000)=nil, &(0x7f0000000100)=<r1=>0x0, &(0x7f0000000000)=<r2=>0x0)
socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={<r3=>0xffffffffffffffff})
syz_io_uring_submit(r1, r2, &(0x7f0000000080)=@IORING_OP_RECV=@pass_buffer={0x1b, 0x0, 0x0, r3, 0x0, 0x0}, 0x0)
io_uring_enter(r0, 0xa2, 0x0, 0x0, 0x0, 0x0)

07:30:48 executing program 3:
r0 = socket$inet(0x2, 0x3, 0x5)
setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f0000000340)={0x1, {{0x2, 0x0, @multicast1}}}, 0x90)

07:30:48 executing program 0:
clone3(&(0x7f0000001840)={0x20006400, 0x0, 0x0, 0x0, {}, 0x0, 0x0, 0x0, &(0x7f00000017c0)=[0x0], 0x1}, 0x58)

07:30:48 executing program 5:
r0 = add_key$keyring(&(0x7f00000002c0), &(0x7f0000000300)={'syz', 0x1}, 0x0, 0x0, 0xfffffffffffffffd)
add_key$user(&(0x7f0000000000), 0x0, 0x0, 0x0, 0xfffffffffffffffe)
r1 = add_key$keyring(&(0x7f0000000280), &(0x7f0000000240)={'syz', 0x3}, 0x0, 0x0, r0)
add_key$keyring(&(0x7f0000000240), 0x0, 0x0, 0x0, 0xffffffffffffffff)
request_key(&(0x7f0000000380)='dns_resolver\x00', &(0x7f0000000580)={'syz', 0x1}, &(0x7f0000000100)='\x90\xe3q&\x9d\x94q\x94R\xe2\xa6\xa7\x84|\x9fl\'\x94\fP\xe5\xdb\xea9a\x02|Bo\x11\x90\xf3U\x8f\xb1\x1d\xf8w[\xbe\xf7\x9d\xacM6\x9e\xc2\xc9\xbb+\x95\x977d\x01\x00\x00\x00\x01\x00\x00\x00\x83\x1aRV\xff7\n\xf7\xae\xc0\xdf\xb2\x8e\x8a\x90\xe5F\x8a\xe8H\xb9e\r\x01\x02\xdb\x196\xf7\xe1\xd0t&(\xcfu', 0x0)
add_key(&(0x7f0000000180)='dns_resolver\x00', &(0x7f0000000200)={'syz', 0x1}, &(0x7f00000004c0)="dee7030022cf9e5e1dbac27b0426fc0299c40800000000000000c894f365ae68edf335abf35ec53d6751467ebd2c187491bcab2c8d34fec505fc8a14622dba33ff9b054eb7e8a5bc4ab2719cb230328931deb95ef3fcafb1ce27743a93f4715976ede8860ab49c3a4f51ab0124b50c3362201a307df03000", 0x78, r1)
request_key(&(0x7f0000000340)='dns_resolver\x00', &(0x7f00000001c0)={'syz', 0x1}, 0x0, 0x0)

[   31.547523][ T4595] ISOFS: Unable to identify CD-ROM format.
07:30:48 executing program 2:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0)
mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1800003, 0x12, r0, 0x0)
preadv(r0, &(0x7f0000000280), 0x18, 0xd9f, 0x0)
syz_mount_image$iso9660(&(0x7f0000000700), &(0x7f0000000740)='./file0\x00', 0x0, 0x0, &(0x7f0000000800), 0x0, &(0x7f0000000840)={[{@block={'block', 0x3d, 0x200}}]})

07:30:48 executing program 4:
set_mempolicy(0x3, &(0x7f0000000140)=0x8001, 0x4)
r0 = syz_io_uring_setup(0x2de5, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, &(0x7f0000002000/0x2000)=nil, &(0x7f0000400000/0xc00000)=nil, &(0x7f0000000100)=<r1=>0x0, &(0x7f0000000000)=<r2=>0x0)
socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={<r3=>0xffffffffffffffff})
syz_io_uring_submit(r1, r2, &(0x7f0000000080)=@IORING_OP_RECV=@pass_buffer={0x1b, 0x0, 0x0, r3, 0x0, 0x0}, 0x0)
io_uring_enter(r0, 0xa2, 0x0, 0x0, 0x0, 0x0)

07:30:48 executing program 5:
r0 = add_key$keyring(&(0x7f00000002c0), &(0x7f0000000300)={'syz', 0x1}, 0x0, 0x0, 0xfffffffffffffffd)
add_key$user(&(0x7f0000000000), 0x0, 0x0, 0x0, 0xfffffffffffffffe)
r1 = add_key$keyring(&(0x7f0000000280), &(0x7f0000000240)={'syz', 0x3}, 0x0, 0x0, r0)
add_key$keyring(&(0x7f0000000240), 0x0, 0x0, 0x0, 0xffffffffffffffff)
request_key(&(0x7f0000000380)='dns_resolver\x00', &(0x7f0000000580)={'syz', 0x1}, &(0x7f0000000100)='\x90\xe3q&\x9d\x94q\x94R\xe2\xa6\xa7\x84|\x9fl\'\x94\fP\xe5\xdb\xea9a\x02|Bo\x11\x90\xf3U\x8f\xb1\x1d\xf8w[\xbe\xf7\x9d\xacM6\x9e\xc2\xc9\xbb+\x95\x977d\x01\x00\x00\x00\x01\x00\x00\x00\x83\x1aRV\xff7\n\xf7\xae\xc0\xdf\xb2\x8e\x8a\x90\xe5F\x8a\xe8H\xb9e\r\x01\x02\xdb\x196\xf7\xe1\xd0t&(\xcfu', 0x0)
add_key(&(0x7f0000000180)='dns_resolver\x00', &(0x7f0000000200)={'syz', 0x1}, &(0x7f00000004c0)="dee7030022cf9e5e1dbac27b0426fc0299c40800000000000000c894f365ae68edf335abf35ec53d6751467ebd2c187491bcab2c8d34fec505fc8a14622dba33ff9b054eb7e8a5bc4ab2719cb230328931deb95ef3fcafb1ce27743a93f4715976ede8860ab49c3a4f51ab0124b50c3362201a307df03000", 0x78, r1)
request_key(&(0x7f0000000340)='dns_resolver\x00', &(0x7f00000001c0)={'syz', 0x1}, 0x0, 0x0)

07:30:48 executing program 3:
r0 = socket$inet(0x2, 0x3, 0x5)
setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f0000000340)={0x1, {{0x2, 0x0, @multicast1}}}, 0x90)

07:30:48 executing program 0:
set_mempolicy(0x3, &(0x7f0000000140)=0x8001, 0x4)
r0 = syz_io_uring_setup(0x2de5, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, &(0x7f0000002000/0x2000)=nil, &(0x7f0000400000/0xc00000)=nil, &(0x7f0000000100)=<r1=>0x0, &(0x7f0000000000)=<r2=>0x0)
socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={<r3=>0xffffffffffffffff})
syz_io_uring_submit(r1, r2, &(0x7f0000000080)=@IORING_OP_RECV=@pass_buffer={0x1b, 0x0, 0x0, r3, 0x0, 0x0}, 0x0)
io_uring_enter(r0, 0xa2, 0x0, 0x0, 0x0, 0x0)

[   31.648706][ T4633] ISOFS: Unable to identify CD-ROM format.