[ 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 '10.128.0.191' (ECDSA) to the list of known hosts. 2021/05/04 14:06:20 fuzzer started 2021/05/04 14:06:20 dialing manager at 10.128.0.163:36445 2021/05/04 14:06:21 syscalls: 1982 2021/05/04 14:06:21 code coverage: enabled 2021/05/04 14:06:21 comparison tracing: enabled 2021/05/04 14:06:21 extra coverage: enabled 2021/05/04 14:06:21 setuid sandbox: enabled 2021/05/04 14:06:21 namespace sandbox: enabled 2021/05/04 14:06:21 Android sandbox: enabled 2021/05/04 14:06:21 fault injection: enabled 2021/05/04 14:06:21 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2021/05/04 14:06:21 net packet injection: /dev/net/tun does not exist 2021/05/04 14:06:21 net device setup: enabled 2021/05/04 14:06:21 concurrency sanitizer: enabled 2021/05/04 14:06:21 devlink PCI setup: PCI device 0000:00:10.0 is not available 2021/05/04 14:06:21 USB emulation: /dev/raw-gadget does not exist 2021/05/04 14:06:21 hci packet injection: /dev/vhci does not exist 2021/05/04 14:06:21 wifi device emulation: /sys/class/mac80211_hwsim/ does not exist 2021/05/04 14:06:21 802.15.4 emulation: /sys/bus/platform/devices/mac802154_hwsim does not exist 2021/05/04 14:06:22 suppressing KCSAN reports in functions: 'do_readlinkat' 'ext4_free_inode' 'blk_mq_sched_dispatch_requests' 'blk_mq_dispatch_rq_list' 'step_into' '__ext4_new_inode' 'ext4_free_inodes_count' 'blk_mq_rq_ctx_init' 'expire_timers' 'n_tty_receive_buf_common' '__xa_clear_mark' 'do_signal_stop' 'complete_signal' 'generic_write_end' 'ext4_mb_good_group' 'kauditd_thread' '__mark_inode_dirty' '__send_signal' 'lookup_fast' 'tick_nohz_next_event' 'ext4_ext_insert_extent' 2021/05/04 14:06:22 fetching corpus: 0, signal 0/2000 (executing program) 2021/05/04 14:06:22 fetching corpus: 49, signal 14949/18575 (executing program) 2021/05/04 14:06:22 fetching corpus: 99, signal 24847/29957 (executing program) 2021/05/04 14:06:22 fetching corpus: 149, signal 28982/35586 (executing program) 2021/05/04 14:06:22 fetching corpus: 199, signal 33665/41674 (executing program) 2021/05/04 14:06:22 fetching corpus: 248, signal 36961/46352 (executing program) 2021/05/04 14:06:22 fetching corpus: 298, signal 41629/52235 (executing program) 2021/05/04 14:06:23 fetching corpus: 348, signal 46509/58192 (executing program) 2021/05/04 14:06:23 fetching corpus: 398, signal 51602/64220 (executing program) 2021/05/04 14:06:23 fetching corpus: 448, signal 54189/67910 (executing program) 2021/05/04 14:06:23 fetching corpus: 498, signal 57742/72362 (executing program) 2021/05/04 14:06:23 fetching corpus: 548, signal 60546/76128 (executing program) 2021/05/04 14:06:23 fetching corpus: 598, signal 63667/80062 (executing program) 2021/05/04 14:06:23 fetching corpus: 648, signal 66873/83992 (executing program) 2021/05/04 14:06:23 fetching corpus: 698, signal 69445/87306 (executing program) 2021/05/04 14:06:23 fetching corpus: 748, signal 71650/90277 (executing program) 2021/05/04 14:06:23 fetching corpus: 798, signal 74707/93877 (executing program) 2021/05/04 14:06:23 fetching corpus: 848, signal 76438/96367 (executing program) 2021/05/04 14:06:23 fetching corpus: 898, signal 78086/98748 (executing program) 2021/05/04 14:06:23 fetching corpus: 948, signal 79959/101299 (executing program) 2021/05/04 14:06:23 fetching corpus: 998, signal 82065/103976 (executing program) 2021/05/04 14:06:24 fetching corpus: 1048, signal 83242/105863 (executing program) 2021/05/04 14:06:24 fetching corpus: 1098, signal 85793/108743 (executing program) 2021/05/04 14:06:24 fetching corpus: 1148, signal 87051/110670 (executing program) 2021/05/04 14:06:24 fetching corpus: 1198, signal 88290/112556 (executing program) 2021/05/04 14:06:24 fetching corpus: 1248, signal 90209/114925 (executing program) 2021/05/04 14:06:24 fetching corpus: 1298, signal 91111/116526 (executing program) 2021/05/04 14:06:24 fetching corpus: 1348, signal 92759/118601 (executing program) 2021/05/04 14:06:24 fetching corpus: 1398, signal 93861/120259 (executing program) 2021/05/04 14:06:24 fetching corpus: 1448, signal 94999/121893 (executing program) 2021/05/04 14:06:24 fetching corpus: 1498, signal 96345/123661 (executing program) 2021/05/04 14:06:24 fetching corpus: 1548, signal 97168/125055 (executing program) syzkaller login: [ 20.854647][ T1735] ================================================================== [ 20.856031][ T1735] BUG: KCSAN: data-race in futex_wait_queue_me / prepare_signal [ 20.857339][ T1735] [ 20.857692][ T1735] write to 0xffff8881055c902c of 4 bytes by task 1736 on cpu 1: [ 20.858771][ T1735] futex_wait_queue_me+0x198/0x260 [ 20.859480][ T1735] futex_wait+0x143/0x430 [ 20.860106][ T1735] do_futex+0x9e8/0x1ee0 [ 20.860867][ T1735] __se_sys_futex+0x2a8/0x390 [ 20.861592][ T1735] __x64_sys_futex+0x74/0x80 [ 20.862259][ T1735] do_syscall_64+0x4a/0x90 [ 20.862863][ T1735] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 20.863675][ T1735] [ 20.864006][ T1735] read to 0xffff8881055c902c of 4 bytes by task 1735 on cpu 0: [ 20.865066][ T1735] prepare_signal+0x952/0xeb0 [ 20.865822][ T1735] __send_signal+0x64/0x760 [ 20.866476][ T1735] send_signal+0x281/0x390 [ 20.867127][ T1735] do_send_specific+0x13d/0x1c0 [ 20.867954][ T1735] __x64_sys_tgkill+0x108/0x140 [ 20.868871][ T1735] do_syscall_64+0x4a/0x90 [ 20.869519][ T1735] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 20.870341][ T1735] [ 20.870672][ T1735] Reported by Kernel Concurrency Sanitizer on: [ 20.871581][ T1735] CPU: 0 PID: 1735 Comm: syz-fuzzer Not tainted 5.12.0-syzkaller #0 [ 20.872789][ T1735] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 20.874560][ T1735] ================================================================== 2021/05/04 14:06:24 fetching corpus: 1598, signal 98348/126670 (executing program) 2021/05/04 14:06:24 fetching corpus: 1648, signal 99954/128481 (executing program) 2021/05/04 14:06:24 fetching corpus: 1698, signal 100869/129874 (executing program) 2021/05/04 14:06:24 fetching corpus: 1748, signal 102008/131328 (executing program) 2021/05/04 14:06:25 fetching corpus: 1798, signal 103386/133097 (executing program) 2021/05/04 14:06:25 fetching corpus: 1847, signal 104110/134261 (executing program) 2021/05/04 14:06:25 fetching corpus: 1896, signal 105098/135579 (executing program) 2021/05/04 14:06:25 fetching corpus: 1945, signal 106090/136841 (executing program) 2021/05/04 14:06:25 fetching corpus: 1995, signal 106905/138038 (executing program) 2021/05/04 14:06:25 fetching corpus: 2045, signal 107573/139118 (executing program) 2021/05/04 14:06:25 fetching corpus: 2095, signal 108243/140190 (executing program) 2021/05/04 14:06:25 fetching corpus: 2145, signal 109069/141304 (executing program) 2021/05/04 14:06:25 fetching corpus: 2195, signal 110880/142899 (executing program) 2021/05/04 14:06:25 fetching corpus: 2245, signal 112065/144155 (executing program) 2021/05/04 14:06:25 fetching corpus: 2295, signal 112788/145188 (executing program) 2021/05/04 14:06:25 fetching corpus: 2345, signal 113695/146224 (executing program) 2021/05/04 14:06:25 fetching corpus: 2395, signal 114383/147170 (executing program) 2021/05/04 14:06:25 fetching corpus: 2445, signal 115369/148268 (executing program) 2021/05/04 14:06:25 fetching corpus: 2495, signal 116474/149396 (executing program) 2021/05/04 14:06:26 fetching corpus: 2545, signal 117365/150399 (executing program) 2021/05/04 14:06:26 fetching corpus: 2595, signal 118401/151396 (executing program) 2021/05/04 14:06:26 fetching corpus: 2645, signal 119500/152408 (executing program) 2021/05/04 14:06:26 fetching corpus: 2695, signal 120378/153348 (executing program) 2021/05/04 14:06:26 fetching corpus: 2745, signal 121148/154278 (executing program) 2021/05/04 14:06:26 fetching corpus: 2795, signal 121654/154997 (executing program) 2021/05/04 14:06:26 fetching corpus: 2845, signal 122262/155780 (executing program) 2021/05/04 14:06:26 fetching corpus: 2895, signal 122973/156593 (executing program) 2021/05/04 14:06:26 fetching corpus: 2945, signal 123828/157396 (executing program) 2021/05/04 14:06:26 fetching corpus: 2995, signal 124674/158184 (executing program) 2021/05/04 14:06:26 fetching corpus: 3045, signal 125368/158931 (executing program) 2021/05/04 14:06:26 fetching corpus: 3095, signal 125879/159573 (executing program) 2021/05/04 14:06:26 fetching corpus: 3145, signal 126370/160240 (executing program) 2021/05/04 14:06:26 fetching corpus: 3195, signal 126873/160887 (executing program) 2021/05/04 14:06:27 fetching corpus: 3245, signal 127336/161509 (executing program) 2021/05/04 14:06:27 fetching corpus: 3295, signal 127800/162099 (executing program) 2021/05/04 14:06:27 fetching corpus: 3345, signal 128557/162799 (executing program) 2021/05/04 14:06:27 fetching corpus: 3395, signal 129258/163435 (executing program) 2021/05/04 14:06:27 fetching corpus: 3445, signal 129958/164048 (executing program) 2021/05/04 14:06:27 fetching corpus: 3495, signal 130563/164606 (executing program) 2021/05/04 14:06:27 fetching corpus: 3545, signal 131972/165284 (executing program) 2021/05/04 14:06:27 fetching corpus: 3595, signal 132642/165809 (executing program) 2021/05/04 14:06:27 fetching corpus: 3645, signal 133260/166321 (executing program) 2021/05/04 14:06:27 fetching corpus: 3695, signal 134413/166920 (executing program) 2021/05/04 14:06:27 fetching corpus: 3745, signal 134896/167430 (executing program) 2021/05/04 14:06:27 fetching corpus: 3795, signal 135678/167933 (executing program) 2021/05/04 14:06:27 fetching corpus: 3845, signal 136048/168389 (executing program) 2021/05/04 14:06:27 fetching corpus: 3895, signal 137136/168878 (executing program) 2021/05/04 14:06:27 fetching corpus: 3945, signal 137759/169356 (executing program) 2021/05/04 14:06:28 fetching corpus: 3995, signal 138341/169796 (executing program) 2021/05/04 14:06:28 fetching corpus: 4045, signal 139298/170195 (executing program) 2021/05/04 14:06:28 fetching corpus: 4095, signal 139991/170617 (executing program) 2021/05/04 14:06:28 fetching corpus: 4145, signal 140739/171004 (executing program) 2021/05/04 14:06:28 fetching corpus: 4195, signal 141349/171371 (executing program) 2021/05/04 14:06:28 fetching corpus: 4245, signal 141786/171501 (executing program) 2021/05/04 14:06:28 fetching corpus: 4295, signal 142435/171501 (executing program) 2021/05/04 14:06:28 fetching corpus: 4345, signal 143173/171501 (executing program) 2021/05/04 14:06:28 fetching corpus: 4395, signal 143823/171501 (executing program) 2021/05/04 14:06:28 fetching corpus: 4445, signal 144444/171501 (executing program) 2021/05/04 14:06:28 fetching corpus: 4495, signal 144911/171501 (executing program) 2021/05/04 14:06:28 fetching corpus: 4545, signal 145288/171501 (executing program) 2021/05/04 14:06:28 fetching corpus: 4595, signal 145822/171501 (executing program) 2021/05/04 14:06:28 fetching corpus: 4645, signal 146407/171501 (executing program) 2021/05/04 14:06:28 fetching corpus: 4695, signal 146932/171501 (executing program) 2021/05/04 14:06:29 fetching corpus: 4745, signal 147279/171501 (executing program) 2021/05/04 14:06:29 fetching corpus: 4795, signal 147619/171501 (executing program) 2021/05/04 14:06:29 fetching corpus: 4845, signal 148063/171501 (executing program) 2021/05/04 14:06:29 fetching corpus: 4895, signal 148478/171501 (executing program) 2021/05/04 14:06:29 fetching corpus: 4945, signal 148909/171501 (executing program) 2021/05/04 14:06:29 fetching corpus: 4995, signal 149498/171501 (executing program) 2021/05/04 14:06:29 fetching corpus: 5045, signal 150286/171501 (executing program) 2021/05/04 14:06:29 fetching corpus: 5095, signal 151104/171509 (executing program) 2021/05/04 14:06:29 fetching corpus: 5145, signal 151499/171509 (executing program) 2021/05/04 14:06:29 fetching corpus: 5195, signal 152184/171509 (executing program) 2021/05/04 14:06:29 fetching corpus: 5245, signal 152678/171509 (executing program) 2021/05/04 14:06:29 fetching corpus: 5295, signal 153032/171509 (executing program) 2021/05/04 14:06:29 fetching corpus: 5345, signal 153660/171509 (executing program) 2021/05/04 14:06:29 fetching corpus: 5395, signal 154342/171509 (executing program) 2021/05/04 14:06:29 fetching corpus: 5445, signal 154891/171509 (executing program) 2021/05/04 14:06:29 fetching corpus: 5495, signal 155480/171509 (executing program) 2021/05/04 14:06:29 fetching corpus: 5545, signal 156067/171509 (executing program) 2021/05/04 14:06:29 fetching corpus: 5595, signal 156492/171509 (executing program) 2021/05/04 14:06:30 fetching corpus: 5645, signal 157044/171509 (executing program) 2021/05/04 14:06:30 fetching corpus: 5695, signal 157543/171509 (executing program) 2021/05/04 14:06:30 fetching corpus: 5745, signal 158172/171509 (executing program) 2021/05/04 14:06:30 fetching corpus: 5795, signal 158777/171509 (executing program) 2021/05/04 14:06:30 fetching corpus: 5845, signal 159187/171509 (executing program) 2021/05/04 14:06:30 fetching corpus: 5895, signal 159630/171573 (executing program) 2021/05/04 14:06:30 fetching corpus: 5945, signal 159941/171573 (executing program) 2021/05/04 14:06:30 fetching corpus: 5995, signal 160304/171573 (executing program) 2021/05/04 14:06:30 fetching corpus: 6045, signal 160652/171573 (executing program) 2021/05/04 14:06:30 fetching corpus: 6095, signal 161226/171573 (executing program) 2021/05/04 14:06:30 fetching corpus: 6145, signal 161563/171573 (executing program) 2021/05/04 14:06:30 fetching corpus: 6195, signal 161918/171573 (executing program) 2021/05/04 14:06:30 fetching corpus: 6245, signal 162433/171579 (executing program) 2021/05/04 14:06:30 fetching corpus: 6295, signal 162991/171582 (executing program) 2021/05/04 14:06:30 fetching corpus: 6345, signal 163403/171582 (executing program) 2021/05/04 14:06:30 fetching corpus: 6395, signal 163965/171582 (executing program) 2021/05/04 14:06:31 fetching corpus: 6445, signal 164449/171582 (executing program) 2021/05/04 14:06:31 fetching corpus: 6495, signal 165030/171582 (executing program) 2021/05/04 14:06:31 fetching corpus: 6545, signal 165209/171582 (executing program) 2021/05/04 14:06:31 fetching corpus: 6595, signal 165511/171585 (executing program) 2021/05/04 14:06:31 fetching corpus: 6645, signal 165867/171585 (executing program) 2021/05/04 14:06:31 fetching corpus: 6695, signal 166391/171585 (executing program) 2021/05/04 14:06:31 fetching corpus: 6745, signal 166794/171590 (executing program) 2021/05/04 14:06:31 fetching corpus: 6795, signal 167320/171590 (executing program) 2021/05/04 14:06:31 fetching corpus: 6845, signal 167634/171590 (executing program) 2021/05/04 14:06:31 fetching corpus: 6895, signal 168266/171590 (executing program) 2021/05/04 14:06:31 fetching corpus: 6945, signal 168873/171590 (executing program) 2021/05/04 14:06:31 fetching corpus: 6995, signal 169214/171590 (executing program) 2021/05/04 14:06:31 fetching corpus: 7045, signal 169570/171590 (executing program) 2021/05/04 14:06:31 fetching corpus: 7095, signal 169841/171590 (executing program) 2021/05/04 14:06:31 fetching corpus: 7145, signal 170152/171590 (executing program) 2021/05/04 14:06:31 fetching corpus: 7150, signal 170214/171590 (executing program) 2021/05/04 14:06:31 fetching corpus: 7150, signal 170214/171590 (executing program) 2021/05/04 14:06:33 starting 6 fuzzer processes 14:06:33 executing program 0: r0 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='loginuid\x00') write$char_usb(r0, &(0x7f00000001c0)='8', 0x1) 14:06:33 executing program 1: prlimit64(0x0, 0xe, &(0x7f0000000280)={0xd, 0x1ff}, 0x0) r0 = getpid() sched_setattr(r0, &(0x7f0000000040)={0x38, 0x2, 0x0, 0x0, 0x7}, 0x0) pipe(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) fcntl$setpipe(r1, 0x407, 0x0) r3 = creat(&(0x7f0000000100)='./file0\x00', 0x0) write$cgroup_type(r3, &(0x7f0000000180), 0x2d1ee37) write(r2, &(0x7f0000000100), 0x2c9f9de1) vmsplice(r1, &(0x7f0000000000)=[{&(0x7f0000000500), 0x3528aca1}], 0x1, 0x0) sched_setattr(0x0, &(0x7f0000000080)={0x38, 0x2, 0x0, 0x0, 0x3, 0xfffffffffffffffd}, 0x0) r4 = syz_open_dev$loop(&(0x7f00000000c0), 0x0, 0x100082) r5 = memfd_create(&(0x7f00000003c0)='\x06\x00\x00!\x00\x00\x00\x00u\x86e\x00\x00\t\x00\xa9\x03\x00\x00\xd6\xfbmZ\x84~\x9e\xf6\xb7\xaczc\x86l\xff\x7f\x00\x00\x90`\xc4\xf1L\x99\x06\x00\xe1\vn\xe0\x8d\x8a\xf2g\xeb\xaaq\x82\xd6\x1f\x98\xd8\xc6k\xeb\xb2O\x8c\x81Y\xbc*\xb3\xb3\x7ft\xabloB\xcc\x1b8\xa29\xa7`\x91\xeb\x0f\xa2\xa5r\x0e4\t\xe3\xbf\xd43\x81\xa6\x19\xe1\xec\x85\xe9+\x197\xf1\xd3\xe2\xc6\xfbL\x91\xdf\xc5\xb2\x9c\xa2\a3\xb2\x8bN\x19\xb9x-\xe4k\xdd~\xe5\xbf\xc0]l\xf7\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00gwRf`\xd7\xb1\"\'\xa2l\xfc\x16:u 80g\xe4io3\x14\xf6(Yh\xa5\xcbw\xf9\x1f\x9a?\xe7\xbd>\xf0\x8f2f\xe9\xe3agZ\x05`\x9bv\xa7\x89S\x8dx\x01\x05\xd5\x85>\xf0J\x1er\x1f\xd2\xaa\x8b\x9b\x8b\x86\xa9\xaa\xf4\xe0\x8b\xd0\x00'/244, 0x0) pwritev(r5, &(0x7f0000000600)=[{&(0x7f00000007c0)="cd", 0x1}], 0x1, 0x8180a, 0x0) pwritev(r5, &(0x7f00000004c0)=[{&(0x7f0000000380)}, {&(0x7f0000000fc0)="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", 0xc00}, {&(0x7f00000008c0)="7520645f23085b1340e799bb196bd415f773e38ac6aa3635af52b585afa24cc01afa2d345328814766092c5e7a2c3f32daa7df47d667d83d1ae5687a917d5b67b1bdccbc41348c72d8b29a842547155bc038604f2def3d4f5f63c8ef64", 0x5d}, {&(0x7f0000000980)="46e2de48e673a0147968acfc4993f8fff9538b553635ba62efbedb1c6e528922bdbf005b3a66854e80d3ccab746b1aea3c338ac3f757fab8f684f3d2a1602fcbf55f0ca280756e62b09b490b6be23fb2559fc13c6a7fa070a3e66747498cfb43baf0936346955930c6494102f814e56b9be33cbba8edb076eb8dccdf06fc5c7fce8deb0e2ac5be4569b09493cde48c5d15b5b09ff2f0c62537406cc2086656e06ebfac7d1fbff3264fa158bc9034a4e85c4a66a2da793129490011da0d2d95bed764ffd40374baa7bb3fb120f08baf01aade73d15ac7deac93ed5dcd9cd40c9b9757f3672dc8d75b8344cd4f62", 0xed}, {&(0x7f0000000580)="f2f9137cdfd5dd587a6bf94fecbe8837dd11efe514e9ca2e616572adbc06bb7b56771064455cde7f4a010a5eb078", 0x2e}, {&(0x7f0000000a80)}, {&(0x7f00000001c0)="5f294ad4017a2d694e9eafff8d3ebf9aec669f41be50168fe8590e42b3cf48d64a84306103de5920458a5a6e1dafcd96d0a5a5b41877aca83643ca745682f0b92e754c6396f644432e53386c077934280c27acc9b74d589be621d20fb3a5a113d20d30e72b", 0x65}], 0x7, 0x1, 0x2) ioctl$LOOP_CHANGE_FD(r4, 0x4c00, r5) sendfile(r4, r5, 0x0, 0x20000102000003) 14:06:33 executing program 5: r0 = socket$nl_xfrm(0x10, 0x3, 0x6) bind$netlink(r0, &(0x7f0000000080)={0x10, 0x0, 0x0, 0x1}, 0xc) r1 = socket$inet6(0xa, 0x3, 0x7) connect$inet6(r1, &(0x7f00000000c0)={0xa, 0x0, 0x0, @loopback}, 0x1c) perf_event_open(&(0x7f000001d000)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffff7fffffffffff, 0xffffffffffffffff, 0x0) writev(0xffffffffffffffff, &(0x7f0000000000)=[{&(0x7f0000001780)="390000001300034705bb65e1c3e4ffff0600000021000000580000002500000019000a000400000007fd17e5ff8e060604002000000000d402", 0x39}], 0x1) setsockopt$inet6_IPV6_XFRM_POLICY(r1, 0x29, 0x23, &(0x7f0000000100)={{{@in=@loopback, @in6=@mcast2, 0x0, 0x0, 0x0, 0x0, 0xa}, {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffffffffffffffe}, {}, 0x0, 0x0, 0x1}, {{@in, 0xffffffff, 0x3c}, 0x0, @in=@multicast2, 0x0, 0x0, 0x0, 0x81}}, 0xe8) sendto$inet6(r1, &(0x7f0000000000)="a23ef0b23bd322cf275408c321f9c10e6a19dd0290a9fe277e4b34e8de9590f806a2846a8391acb940b93e85687c95fb1e023cbbbb6d18", 0x37, 0x0, &(0x7f0000000040)={0xa, 0x4e21, 0x1, @ipv4={'\x00', '\xff\xff', @remote}, 0x6f0d2bf}, 0x1c) sendmmsg(r1, &(0x7f0000000480), 0x2e9, 0x0) 14:06:33 executing program 2: prctl$PR_SET_PTRACER(0x59616d61, 0xffffffffffffffff) clone(0x80000100, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) r0 = gettid() write$sndseq(0xffffffffffffffff, &(0x7f00000000c0)=[{0x0, 0x0, 0x0, 0x0, @time, {}, {}, @ext={0x116, &(0x7f0000000140)="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"}}], 0x1c) wait4(0x0, 0x0, 0x80000000, 0x0) vmsplice(0xffffffffffffffff, &(0x7f0000000100)=[{&(0x7f0000000040)}, {&(0x7f0000000000)="0832f497d38350418e4bb321019511dc5df26e9a0b7ecb6974f527cc14538d1efb1ffe03284f6d33265be9c604b293f20e96beeb2aa4c457ac37a3a3f1ce8682500fcecd80", 0x45}], 0x2, 0x0) ptrace$setopts(0x4206, r0, 0x0, 0x0) tkill(r0, 0x17) ptrace$setregs(0xd, r0, 0x0, &(0x7f0000000080)) r1 = gettid() tkill(r1, 0x34) 14:06:33 executing program 3: r0 = socket$inet6(0xa, 0x800000000000002, 0x0) connect$inet6(r0, &(0x7f0000000000)={0xa, 0x0, 0x0, @mcast1, 0x2}, 0x1c) connect$inet6(0xffffffffffffffff, 0x0, 0x0) sendmmsg$inet6(r0, &(0x7f0000007ac0)=[{{&(0x7f0000000400)={0xa, 0x4e22, 0x0, @empty, 0x9}, 0x1c, &(0x7f0000002700)=[{&(0x7f0000000440)="17871c5a273366a038b9a7e028cf76a4bdb4b03e2d875f883170a89b23868aa13b983963ea18b5343220e4c6456f1bbeef83a1902500b0e8c382bb50f64d264bbc394e993817079a8a6f1f9db2ab4f3671be0598602694002a3a72647fbe99a36771", 0x62}, {&(0x7f00000004c0)="5141d2c4f988fdd8848485e4aaaab6ad0836fd81a15e82a9edb739233debf7e015a9e6dfbe434f067185715bd964332862efc935f28b958dd9339e727f63f38e2b4d81ded5957bc25917dc", 0x4b}, {&(0x7f0000000540)="db38fd27a6f854c57172af34e041b3da218a3e25e8c72281af0c7190a2f110c769e454a105f6cb29b986327a99da6b05f3373f73d7c88c98325891fbc3a075", 0x3f}, {&(0x7f0000000580)="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", 0x7f5}], 0x4, &(0x7f0000002780)=[@hopopts={{0x120, 0x29, 0x36, {0x0, 0x21, '\x00', [@padn={0x1, 0x4, [0x0, 0x0, 0x0, 0x0]}, @enc_lim, @generic={0x0, 0x46, "51dba1b3714bd7c063f77f91e65887a945ab9e73d5514b36884a2e5380fac0f8d254fc6becaddc23c76dc7c932f3699623325386ef2027c982777bd0084977bd2b3cf5331328"}, @ra, @pad1, @enc_lim, @hao={0xc9, 0x10, @dev}, @calipso={0x7, 0x30, {0x0, 0xa, 0x0, 0x0, [0x0, 0x0, 0x0, 0x0, 0x0]}}, @generic={0x0, 0x67, "9ddb7ca2c2f8c78a07d2351c1f659eb42f00657399712e33b9aa8ee1c6181f905ee068e79e409b8dfacb48504ac833dcaa5b142fa4870cc3d025f276fdd7a42c1c4b8e5e39b8d4b08728692acc586785a16be97d5d471b1f1dd81dd4d6603dbaff83580e6b103d"}]}}}, @dstopts_2292={{0x38, 0x29, 0x4, {0x0, 0x4, '\x00', [@pad1, @pad1, @padn={0x1, 0x3, [0x0, 0x0, 0x0]}, @pad1, @padn={0x1, 0x1, [0x0]}, @pad1, @padn={0x1, 0x7, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}, @enc_lim]}}}], 0x158}}], 0x1, 0x0) 14:06:33 executing program 4: r0 = socket$inet6(0xa, 0x2, 0x0) setsockopt$inet6_int(r0, 0x29, 0x200000000000011, &(0x7f0000000280)=0x2, 0x4) connect$inet6(r0, &(0x7f0000000000)={0xa, 0x0, 0x0, @mcast2}, 0x1b) [ 29.398384][ T25] audit: type=1400 audit(1620137193.171:8): avc: denied { execmem } for pid=1751 comm="syz-executor.1" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 29.455995][ T1754] cgroup: Unknown subsys name 'perf_event' [ 29.462331][ T1754] cgroup: Unknown subsys name 'net_cls' [ 29.526797][ T1758] cgroup: Unknown subsys name 'perf_event' [ 29.532743][ T1758] cgroup: Unknown subsys name 'net_cls' [ 29.536835][ T1759] cgroup: Unknown subsys name 'perf_event' [ 29.546223][ T1759] cgroup: Unknown subsys name 'net_cls' [ 29.559057][ T1762] cgroup: Unknown subsys name 'perf_event' [ 29.566183][ T1764] cgroup: Unknown subsys name 'perf_event' [ 29.566740][ T1763] cgroup: Unknown subsys name 'perf_event' [ 29.575874][ T1764] cgroup: Unknown subsys name 'net_cls' [ 29.578242][ T1762] cgroup: Unknown subsys name 'net_cls' [ 29.603580][ T1763] cgroup: Unknown subsys name 'net_cls'