Warning: Permanently added '10.128.10.25' (ECDSA) to the list of known hosts. 2020/05/01 18:02:30 fuzzer started 2020/05/01 18:02:30 connecting to host at 10.128.0.26:46379 2020/05/01 18:02:30 checking machine... 2020/05/01 18:02:30 checking revisions... 2020/05/01 18:02:30 testing simple program... [ 57.104342][ T7029] IPVS: ftp: loaded support on port[0] = 21 2020/05/01 18:02:31 building call list... [ 57.492209][ T237] tipc: TX() has been purged, node left! [ 58.831332][ T7010] can: request_module (can-proto-0) failed. executing program [ 60.606691][ T7010] can: request_module (can-proto-0) failed. [ 60.618229][ T7010] can: request_module (can-proto-0) failed. [ 61.103669][ T7010] ================================================================== [ 61.112311][ T7010] BUG: KASAN: null-ptr-deref in x25_disconnect+0x253/0x370 [ 61.119736][ T7010] Write of size 4 at addr 00000000000000d8 by task syz-fuzzer/7010 [ 61.127780][ T7010] [ 61.130101][ T7010] CPU: 0 PID: 7010 Comm: syz-fuzzer Not tainted 5.7.0-rc2-syzkaller #0 [ 61.138314][ T7010] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.148482][ T7010] Call Trace: [ 61.151770][ T7010] dump_stack+0x188/0x20d [ 61.156101][ T7010] ? x25_disconnect+0x253/0x370 [ 61.161098][ T7010] ? __sock_release+0x280/0x280 [ 61.165980][ T7010] __kasan_report.cold+0x5/0x4d [ 61.170964][ T7010] ? rcu_read_lock_held+0x1/0xb0 [ 61.176169][ T7010] ? x25_disconnect+0x253/0x370 [ 61.181147][ T7010] ? x25_disconnect+0x253/0x370 [ 61.186009][ T7010] kasan_report+0x33/0x50 [ 61.190743][ T7010] check_memory_region+0x141/0x190 [ 61.196066][ T7010] x25_disconnect+0x253/0x370 [ 61.200769][ T7010] x25_release+0x345/0x420 [ 61.205376][ T7010] __sock_release+0xcd/0x280 [ 61.210122][ T7010] sock_close+0x18/0x20 [ 61.214707][ T7010] __fput+0x33e/0x880 [ 61.218770][ T7010] task_work_run+0xf4/0x1b0 [ 61.223259][ T7010] exit_to_usermode_loop+0x2fa/0x360 [ 61.228671][ T7010] do_syscall_64+0x6b1/0x7d0 [ 61.233447][ T7010] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 61.239886][ T7010] RIP: 0033:0x4afb40 [ 61.243767][ T7010] Code: 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 49 c7 c2 00 00 00 00 49 c7 c0 00 00 00 00 49 c7 c1 00 00 00 00 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30 [ 61.263361][ T7010] RSP: 002b:000000c0001f14f8 EFLAGS: 00000216 ORIG_RAX: 0000000000000003 [ 61.271767][ T7010] RAX: 0000000000000000 RBX: 000000c00002c000 RCX: 00000000004afb40 [ 61.279933][ T7010] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 61.288077][ T7010] RBP: 000000c0001f1538 R08: 0000000000000000 R09: 0000000000000000 [ 61.296060][ T7010] R10: 0000000000000000 R11: 0000000000000216 R12: 000000000000008e [ 61.304015][ T7010] R13: 000000000000008d R14: 0000000000000200 R15: 0000000000000200 [ 61.312009][ T7010] ================================================================== [ 61.320153][ T7010] Disabling lock debugging due to kernel taint [ 61.326433][ T7010] Kernel panic - not syncing: panic_on_warn set ... [ 61.333107][ T7010] CPU: 0 PID: 7010 Comm: syz-fuzzer Tainted: G B 5.7.0-rc2-syzkaller #0 [ 61.342828][ T7010] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.353912][ T7010] Call Trace: [ 61.357189][ T7010] dump_stack+0x188/0x20d [ 61.361523][ T7010] ? __sock_release+0x280/0x280 [ 61.366384][ T7010] panic+0x2e3/0x75c [ 61.370288][ T7010] ? add_taint.cold+0x16/0x16 [ 61.374968][ T7010] ? x25_disconnect+0x253/0x370 [ 61.379996][ T7010] ? trace_hardirqs_on+0x55/0x220 [ 61.385013][ T7010] ? x25_disconnect+0x253/0x370 [ 61.390463][ T7010] ? __sock_release+0x280/0x280 [ 61.395288][ T7010] end_report+0x4d/0x53 [ 61.399432][ T7010] __kasan_report.cold+0xd/0x4d [ 61.404279][ T7010] ? rcu_read_lock_held+0x1/0xb0 [ 61.409214][ T7010] ? x25_disconnect+0x253/0x370 [ 61.414039][ T7010] ? x25_disconnect+0x253/0x370 [ 61.418875][ T7010] kasan_report+0x33/0x50 [ 61.423179][ T7010] check_memory_region+0x141/0x190 [ 61.428288][ T7010] x25_disconnect+0x253/0x370 [ 61.432941][ T7010] x25_release+0x345/0x420 [ 61.437434][ T7010] __sock_release+0xcd/0x280 [ 61.441999][ T7010] sock_close+0x18/0x20 [ 61.446128][ T7010] __fput+0x33e/0x880 [ 61.450088][ T7010] task_work_run+0xf4/0x1b0 [ 61.454581][ T7010] exit_to_usermode_loop+0x2fa/0x360 [ 61.459840][ T7010] do_syscall_64+0x6b1/0x7d0 [ 61.464418][ T7010] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 61.470302][ T7010] RIP: 0033:0x4afb40 [ 61.474198][ T7010] Code: 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 49 c7 c2 00 00 00 00 49 c7 c0 00 00 00 00 49 c7 c1 00 00 00 00 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30 [ 61.493789][ T7010] RSP: 002b:000000c0001f14f8 EFLAGS: 00000216 ORIG_RAX: 0000000000000003 [ 61.502203][ T7010] RAX: 0000000000000000 RBX: 000000c00002c000 RCX: 00000000004afb40 [ 61.510159][ T7010] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 61.518231][ T7010] RBP: 000000c0001f1538 R08: 0000000000000000 R09: 0000000000000000 [ 61.526184][ T7010] R10: 0000000000000000 R11: 0000000000000216 R12: 000000000000008e [ 61.535972][ T7010] R13: 000000000000008d R14: 0000000000000200 R15: 0000000000000200 [ 61.545166][ T7010] Kernel Offset: disabled [ 61.549575][ T7010] Rebooting in 86400 seconds..