INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.54' (ECDSA) to the list of known hosts. executing program executing program executing program executing program syzkaller login: [ 32.160430] ================================================================== [ 32.167851] BUG: KMSAN: uninit-value in ghash_setkey+0x209/0x270 [ 32.173975] CPU: 1 PID: 3585 Comm: syzkaller240022 Not tainted 4.16.0+ #82 [ 32.180962] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.190300] Call Trace: [ 32.192882] dump_stack+0x185/0x1d0 [ 32.196508] ? ghash_setkey+0x209/0x270 [ 32.200467] kmsan_report+0x142/0x240 [ 32.204248] __msan_warning_32+0x6c/0xb0 executing program executing program executing program [ 32.208288] ghash_setkey+0x209/0x270 [ 32.212066] ? ghash_final+0x1d0/0x1d0 [ 32.215932] crypto_shash_setkey+0x317/0x490 [ 32.220330] cryptd_hash_setkey+0x1a5/0x330 [ 32.224644] ? cryptd_hash_import+0x2a0/0x2a0 [ 32.229129] crypto_ahash_setkey+0x31a/0x470 [ 32.233532] ghash_async_setkey+0x1a5/0x330 [ 32.237846] ? ghash_async_import+0x3a0/0x3a0 [ 32.242323] crypto_ahash_setkey+0x31a/0x470 [ 32.246711] ? skcipher_encrypt_blkcipher+0x222/0x320 [ 32.251877] crypto_gcm_setkey+0xa3c/0xc10 [ 32.256088] ? crypto_gcm_exit_tfm+0xd0/0xd0 executing program executing program [ 32.260473] crypto_aead_setkey+0x373/0x4c0 [ 32.264774] aead_setkey+0xa0/0xc0 [ 32.268295] alg_setsockopt+0x6c5/0x740 [ 32.272247] ? aead_release+0x90/0x90 [ 32.276032] ? alg_accept+0xd0/0xd0 [ 32.279642] SYSC_setsockopt+0x4b8/0x570 [ 32.283683] SyS_setsockopt+0x76/0xa0 [ 32.287461] do_syscall_64+0x309/0x430 [ 32.291326] ? SYSC_recv+0xe0/0xe0 [ 32.294842] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 32.300010] RIP: 0033:0x4455e9 [ 32.303184] RSP: 002b:00007f6bb3827da8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 executing program executing program [ 32.310868] RAX: ffffffffffffffda RBX: 00000000006dac54 RCX: 00000000004455e9 [ 32.318115] RDX: 0000000000000001 RSI: 0000000000000117 RDI: 0000000000000005 [ 32.325364] RBP: 0000000000000000 R08: 0000000000000010 R09: 0000000000000000 [ 32.332610] R10: 00000000200000c0 R11: 0000000000000246 R12: 00000000006dac50 [ 32.339856] R13: d16bd8a7523a09fc R14: 1c31f0cd157ae671 R15: 0000000000000003 [ 32.347105] [ 32.348704] Uninit was stored to memory at: [ 32.353011] kmsan_internal_chain_origin+0x12b/0x210 executing program [ 32.358097] __msan_chain_origin+0x69/0xc0 [ 32.362307] __crypto_xor+0x23c/0x16b0 [ 32.366175] crypto_ctr_crypt_inplace+0x29a/0x3a0 [ 32.370992] crypto_ctr_crypt+0x54c/0x7d0 [ 32.375124] skcipher_encrypt_blkcipher+0x222/0x320 [ 32.380115] crypto_gcm_setkey+0x6a3/0xc10 [ 32.384334] crypto_aead_setkey+0x373/0x4c0 [ 32.388641] aead_setkey+0xa0/0xc0 [ 32.392153] alg_setsockopt+0x6c5/0x740 [ 32.396114] SYSC_setsockopt+0x4b8/0x570 [ 32.400159] SyS_setsockopt+0x76/0xa0 [ 32.403936] do_syscall_64+0x309/0x430 [ 32.407801] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 32.412961] Local variable description: ----vla@crypto_ctr_crypt_inplace [ 32.419776] Variable was created at: [ 32.423469] crypto_ctr_crypt_inplace+0x19a/0x3a0 [ 32.428290] crypto_ctr_crypt+0x54c/0x7d0 [ 32.432408] ================================================================== [ 32.439736] Disabling lock debugging due to kernel taint [ 32.445159] Kernel panic - not syncing: panic_on_warn set ... [ 32.445159] [ 32.452499] CPU: 1 PID: 3585 Comm: syzkaller240022 Tainted: G B 4.16.0+ #82 [ 32.460789] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.470566] Call Trace: [ 32.473130] dump_stack+0x185/0x1d0 [ 32.476732] panic+0x39d/0x940 [ 32.479911] ? ghash_setkey+0x209/0x270 [ 32.483865] kmsan_report+0x238/0x240 [ 32.487643] __msan_warning_32+0x6c/0xb0 [ 32.491686] ghash_setkey+0x209/0x270 [ 32.495462] ? ghash_final+0x1d0/0x1d0 [ 32.499326] crypto_shash_setkey+0x317/0x490 [ 32.503725] cryptd_hash_setkey+0x1a5/0x330 [ 32.508044] ? cryptd_hash_import+0x2a0/0x2a0 [ 32.512523] crypto_ahash_setkey+0x31a/0x470 [ 32.516912] ghash_async_setkey+0x1a5/0x330 [ 32.521213] ? ghash_async_import+0x3a0/0x3a0 [ 32.525686] crypto_ahash_setkey+0x31a/0x470 [ 32.530070] ? skcipher_encrypt_blkcipher+0x222/0x320 [ 32.535250] crypto_gcm_setkey+0xa3c/0xc10 [ 32.539464] ? crypto_gcm_exit_tfm+0xd0/0xd0 [ 32.543861] crypto_aead_setkey+0x373/0x4c0 [ 32.548172] aead_setkey+0xa0/0xc0 [ 32.551703] alg_setsockopt+0x6c5/0x740 [ 32.555672] ? aead_release+0x90/0x90 [ 32.559468] ? alg_accept+0xd0/0xd0 [ 32.563082] SYSC_setsockopt+0x4b8/0x570 [ 32.567127] SyS_setsockopt+0x76/0xa0 [ 32.570915] do_syscall_64+0x309/0x430 [ 32.574792] ? SYSC_recv+0xe0/0xe0 [ 32.578322] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 32.583496] RIP: 0033:0x4455e9 [ 32.586661] RSP: 002b:00007f6bb3827da8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 32.594341] RAX: ffffffffffffffda RBX: 00000000006dac54 RCX: 00000000004455e9 [ 32.601595] RDX: 0000000000000001 RSI: 0000000000000117 RDI: 0000000000000005 [ 32.608848] RBP: 0000000000000000 R08: 0000000000000010 R09: 0000000000000000 [ 32.616092] R10: 00000000200000c0 R11: 0000000000000246 R12: 00000000006dac50 [ 32.623338] R13: d16bd8a7523a09fc R14: 1c31f0cd157ae671 R15: 0000000000000003 [ 32.631036] Dumping ftrace buffer: [ 32.634556] (ftrace buffer empty) [ 32.638237] Kernel Offset: disabled [ 32.641836] Rebooting in 86400 seconds..