Warning: Permanently added '10.128.0.37' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 72.963881][ T7345] ------------[ cut here ]------------ [ 72.974674][ T7345] refcount_t: underflow; use-after-free. [ 72.991229][ T7369] ------------[ cut here ]------------ [ 72.991395][ T7345] WARNING: CPU: 0 PID: 7345 at lib/refcount.c:28 refcount_warn_saturate+0x1d1/0x1e0 [ 73.003923][ T7369] refcount_t: saturated; leaking memory. [ 73.006183][ T7345] Kernel panic - not syncing: panic_on_warn set ... [ 73.006199][ T7345] CPU: 0 PID: 7345 Comm: syz-executor084 Not tainted 5.6.0-syzkaller #0 [ 73.006207][ T7345] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.006218][ T7345] Call Trace: [ 73.006245][ T7345] dump_stack+0x188/0x20d [ 73.014800][ T7369] WARNING: CPU: 1 PID: 7369 at lib/refcount.c:22 refcount_warn_saturate+0x12d/0x1e0 [ 73.018471][ T7345] ? refcount_warn_saturate+0x150/0x1e0 [ 73.026776][ T7369] Modules linked in: [ 73.036837][ T7345] panic+0x2e3/0x75c [ 73.040114][ T7369] CPU: 1 PID: 7369 Comm: cryptomgr_probe Not tainted 5.6.0-syzkaller #0 [ 73.044425][ T7345] ? add_taint.cold+0x16/0x16 [ 73.053774][ T7369] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.053799][ T7369] RIP: 0010:refcount_warn_saturate+0x12d/0x1e0 [ 73.059348][ T7345] ? __probe_kernel_read+0x188/0x1d0 [ 73.063222][ T7369] Code: 06 31 ff 89 de e8 a3 fc dc fd 84 db 0f 85 72 ff ff ff e8 66 fb dc fd 48 c7 c7 80 50 72 88 c6 05 78 2a ee 06 01 e8 7b 2f ae fd <0f> 0b e9 53 ff ff ff e8 47 fb dc fd 0f b6 1d 5f 2a ee 06 31 ff 89 [ 73.067190][ T7345] ? __warn.cold+0x14/0x35 [ 73.075498][ T7369] RSP: 0018:ffffc900065b7d70 EFLAGS: 00010286 [ 73.080193][ T7345] ? __warn+0xd5/0x1c8 [ 73.090256][ T7369] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 73.096407][ T7345] ? refcount_warn_saturate+0x1d1/0x1e0 [ 73.101667][ T7369] RDX: 0000000000000000 RSI: ffffffff815cd551 RDI: fffff52000cb6fa0 [ 73.121280][ T7345] __warn.cold+0x2f/0x35 [ 73.125669][ T7369] RBP: 0000000000000001 R08: ffff88808cffa540 R09: ffffed1015ce66a9 [ 73.131730][ T7345] ? irq_work_queue+0xc3/0x100 [ 73.135771][ T7369] R10: ffff8880ae733547 R11: ffffed1015ce66a8 R12: ffff888099436848 [ 73.143738][ T7345] ? refcount_warn_saturate+0x1d1/0x1e0 [ 73.149260][ T7369] R13: 0000000000000000 R14: 000000000000240f R15: 0000000000000000 [ 73.157229][ T7345] report_bug+0x27b/0x2f0 [ 73.161451][ T7369] FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 73.169418][ T7345] do_error_trap+0x12b/0x220 [ 73.174149][ T7369] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.174163][ T7369] CR2: 00007ffdb1b14a30 CR3: 000000009f5f7000 CR4: 00000000001406e0 [ 73.182128][ T7345] ? refcount_warn_saturate+0x1d1/0x1e0 [ 73.187653][ T7369] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.195623][ T7345] do_invalid_op+0x32/0x40 [ 73.199940][ T7369] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.199958][ T7369] Call Trace: [ 73.208921][ T7345] ? refcount_warn_saturate+0x1d1/0x1e0 [ 73.213500][ T7369] crypto_mod_get+0xdd/0xf0 [ 73.220611][ T7345] invalid_op+0x23/0x30 [ 73.228584][ T7369] __crypto_alg_lookup+0xed/0x3e0 [ 73.234111][ T7345] RIP: 0010:refcount_warn_saturate+0x1d1/0x1e0 [ 73.242082][ T7369] crypto_alg_lookup+0x57/0x210 [ 73.246488][ T7345] Code: e9 db fe ff ff 48 89 df e8 3c a6 1a fe e9 8a fe ff ff e8 c2 fa dc fd 48 c7 c7 80 51 72 88 c6 05 d2 29 ee 06 01 e8 d7 2e ae fd <0f> 0b e9 af fe ff ff 0f 1f 84 00 00 00 00 00 41 56 41 55 41 54 55 [ 73.254453][ T7369] crypto_alg_mod_lookup+0x6e/0x5b0 [ 73.257718][ T7345] RSP: 0018:ffffc90006527b20 EFLAGS: 00010286 [ 73.263266][ T7369] crypto_grab_spawn+0x82/0x3a0 [ 73.267734][ T7345] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 73.267747][ T7345] RDX: 0000000000000000 RSI: ffffffff815cd551 RDI: fffff52000ca4f56 [ 73.271907][ T7369] ? padata_alloc_shell+0x1c1/0x260 [ 73.276908][ T7345] RBP: 0000000000000003 R08: ffff8880a2c485c0 R09: ffffed1015cc66a9 [ 73.276925][ T7345] R10: ffff8880ae633547 R11: ffffed1015cc66a8 R12: ffff88809943687c [ 73.283088][ T7369] pcrypt_create+0x1f1/0x770 [ 73.287914][ T7345] R13: ffff8880a2954180 R14: 0000000000000000 R15: ffff8880a2954190 [ 73.287943][ T7345] ? vprintk_func+0x81/0x17e [ 73.308003][ T7369] cryptomgr_probe+0x79/0x1a0 [ 73.313211][ T7345] crypto_destroy_tfm+0x2a1/0x310 [ 73.319280][ T7369] ? crypto_alg_put+0xd0/0xd0 [ 73.324117][ T7345] ? crypto_aead_decrypt+0x180/0x180 [ 73.332094][ T7369] kthread+0x388/0x470 [ 73.340062][ T7345] crypto_destroy_tfm+0xb1/0x310 [ 73.345251][ T7369] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 73.353226][ T7345] ? __sock_release+0x280/0x280 [ 73.361190][ T7369] ret_from_fork+0x24/0x30 [ 73.365768][ T7345] aead_release+0x2d/0x50 [ 73.373734][ T7369] irq event stamp: 176 [ 73.378313][ T7345] alg_sock_destruct+0x85/0xe0 [ 73.382972][ T7369] hardirqs last enabled at (175): [] call_rcu+0x360/0x7e0 [ 73.388245][ T7345] ? af_alg_alloc_areq+0x1d0/0x1d0 [ 73.392921][ T7369] hardirqs last disabled at (176): [] trace_hardirqs_off_thunk+0x1a/0x1c executing program [ 73.392945][ T7369] softirqs last enabled at (148): [] __do_softirq+0x6ef/0x9f7 [ 73.398237][ T7345] __sk_destruct+0x4b/0x7c0 [ 73.402295][ T7369] softirqs last disabled at (57): [] irq_exit+0x192/0x1d0 [ 73.402309][ T7369] ---[ end trace 4f4440688026a7c4 ]--- [ 73.407253][ T7345] ? __sock_release+0x280/0x280 [ 73.491930][ T7345] sk_destruct+0xc6/0x100 [ 73.496279][ T7345] __sk_free+0xef/0x3d0 [ 73.500459][ T7345] sk_free+0x78/0xa0 [ 73.504374][ T7345] af_alg_release+0xdb/0x110 [ 73.509017][ T7345] __sock_release+0xcd/0x280 executing program [ 73.513633][ T7345] sock_close+0x18/0x20 [ 73.517800][ T7345] __fput+0x33e/0x880 [ 73.521820][ T7345] task_work_run+0xf4/0x1b0 [ 73.526344][ T7345] do_exit+0xb34/0x2dd0 [ 73.530518][ T7345] ? mm_update_next_owner+0x7a0/0x7a0 [ 73.535903][ T7345] ? up_read+0x1ab/0x750 [ 73.540162][ T7345] ? mark_held_locks+0x9f/0xe0 [ 73.544948][ T7345] ? down_read_nested+0x420/0x420 [ 73.550012][ T7345] ? handle_mm_fault+0x491/0xa10 [ 73.554967][ T7345] do_group_exit+0x125/0x340 [ 73.559580][ T7345] __x64_sys_exit_group+0x3a/0x50 executing program [ 73.564624][ T7345] do_syscall_64+0xf6/0x7d0 [ 73.569150][ T7345] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 73.575083][ T7345] RIP: 0033:0x43ff78 [ 73.578991][ T7345] Code: 00 00 be 3c 00 00 00 eb 19 66 0f 1f 84 00 00 00 00 00 48 89 d7 89 f0 0f 05 48 3d 00 f0 ff ff 77 21 f4 48 89 d7 44 89 c0 0f 05 <48> 3d 00 f0 ff ff 76 e0 f7 d8 64 41 89 01 eb d8 0f 1f 84 00 00 00 [ 73.598623][ T7345] RSP: 002b:00007ffe9d303698 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 73.607074][ T7345] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043ff78 [ 73.615059][ T7345] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 73.623050][ T7345] RBP: 00000000004bf850 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 73.631064][ T7345] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000000001 [ 73.639164][ T7345] R13: 00000000006d1180 R14: 0000000000000000 R15: 0000000000000000 [ 73.648374][ T7345] Kernel Offset: disabled [ 73.652803][ T7345] Rebooting in 86400 seconds..