Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.107' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 65.116365][ T8503] BUG: unable to handle page fault for address: fffff5200471266c [ 65.124564][ T8503] #PF: supervisor read access in kernel mode [ 65.130540][ T8503] #PF: error_code(0x0000) - not-present page [ 65.136522][ T8503] PGD 23fff2067 P4D 23fff2067 PUD 101a4067 PMD 32e3a067 PTE 0 [ 65.143987][ T8503] Oops: 0000 [#1] PREEMPT SMP KASAN [ 65.149164][ T8503] CPU: 1 PID: 8503 Comm: syz-executor608 Not tainted 5.10.0-rc6-syzkaller #0 [ 65.157903][ T8503] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.168054][ T8503] RIP: 0010:bpf_lru_populate+0xd8/0x5e0 [ 65.173602][ T8503] Code: 03 4d 01 e7 48 01 d8 48 89 4c 24 10 4d 89 fe 48 89 44 24 08 e8 99 23 eb ff 49 8d 7e 12 48 89 f8 48 89 fa 48 c1 e8 03 83 e2 07 <0f> b6 04 18 38 d0 7f 08 84 c0 0f 85 80 04 00 00 49 8d 7e 13 41 c6 [ 65.193216][ T8503] RSP: 0018:ffffc9000126fc20 EFLAGS: 00010202 [ 65.199283][ T8503] RAX: 1ffff9200471266c RBX: dffffc0000000000 RCX: ffffffff8184e3e2 [ 65.207252][ T8503] RDX: 0000000000000002 RSI: ffffffff8184e2e7 RDI: ffffc90023893362 [ 65.215226][ T8503] RBP: 00000000000000bc R08: 000000000000107c R09: 0000000000000000 [ 65.223203][ T8503] R10: 000000000000107c R11: 0000000000000000 R12: 0000000000000001 [ 65.231156][ T8503] R13: 000000000000107c R14: ffffc90023893350 R15: ffffc900234832f0 [ 65.239104][ T8503] FS: 0000000000fe0880(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 [ 65.248025][ T8503] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 65.254599][ T8503] CR2: fffff5200471266c CR3: 000000001ba62000 CR4: 00000000001506e0 [ 65.262559][ T8503] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 65.270518][ T8503] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 65.278474][ T8503] Call Trace: [ 65.281760][ T8503] ? bpf_lru_init+0x6c3/0x990 [ 65.286431][ T8503] htab_map_alloc+0xf6e/0x1230 [ 65.291173][ T8503] ? htab_map_alloc_check+0x2ee/0x430 [ 65.296519][ T8503] ? htab_percpu_map_seq_show_elem+0x4a0/0x4a0 [ 65.302654][ T8503] __do_sys_bpf+0xa81/0x5170 [ 65.307240][ T8503] ? bpf_link_get_from_fd+0x110/0x110 [ 65.312605][ T8503] ? __up_read+0x1a1/0x7b0 [ 65.317007][ T8503] ? _down_write_nest_lock+0x150/0x150 [ 65.322507][ T8503] ? syscall_enter_from_user_mode+0x1d/0x50 [ 65.328382][ T8503] do_syscall_64+0x2d/0x70 [ 65.332792][ T8503] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 65.338660][ T8503] RIP: 0033:0x4402e9 [ 65.342555][ T8503] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 65.362141][ T8503] RSP: 002b:00007ffe77af23b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 65.370533][ T8503] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004402e9 [ 65.378521][ T8503] RDX: 0000000000000040 RSI: 0000000020000000 RDI: 0d00000000000000 [ 65.386484][ T8503] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 65.394469][ T8503] R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000401af0 [ 65.402427][ T8503] R13: 0000000000401b80 R14: 0000000000000000 R15: 0000000000000000 [ 65.410483][ T8503] Modules linked in: [ 65.414359][ T8503] CR2: fffff5200471266c [ 65.418493][ T8503] ---[ end trace 4f3928bacde7b3ed ]--- [ 65.423935][ T8503] RIP: 0010:bpf_lru_populate+0xd8/0x5e0 [ 65.429475][ T8503] Code: 03 4d 01 e7 48 01 d8 48 89 4c 24 10 4d 89 fe 48 89 44 24 08 e8 99 23 eb ff 49 8d 7e 12 48 89 f8 48 89 fa 48 c1 e8 03 83 e2 07 <0f> b6 04 18 38 d0 7f 08 84 c0 0f 85 80 04 00 00 49 8d 7e 13 41 c6 [ 65.449093][ T8503] RSP: 0018:ffffc9000126fc20 EFLAGS: 00010202 [ 65.455164][ T8503] RAX: 1ffff9200471266c RBX: dffffc0000000000 RCX: ffffffff8184e3e2 [ 65.463122][ T8503] RDX: 0000000000000002 RSI: ffffffff8184e2e7 RDI: ffffc90023893362 [ 65.471081][ T8503] RBP: 00000000000000bc R08: 000000000000107c R09: 0000000000000000 [ 65.479062][ T8503] R10: 000000000000107c R11: 0000000000000000 R12: 0000000000000001 [ 65.487189][ T8503] R13: 000000000000107c R14: ffffc90023893350 R15: ffffc900234832f0 [ 65.495154][ T8503] FS: 0000000000fe0880(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 [ 65.504148][ T8503] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 65.510732][ T8503] CR2: fffff5200471266c CR3: 000000001ba62000 CR4: 00000000001506e0 [ 65.518682][ T8503] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 65.526631][ T8503] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 65.534580][ T8503] Kernel panic - not syncing: Fatal exception [ 65.541138][ T8503] Kernel Offset: disabled [ 65.545454][ T8503] Rebooting in 86400 seconds..