Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.2' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 67.874691][ T8442] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 67.886433][ T8442] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 67.894898][ T8442] CPU: 0 PID: 8442 Comm: syz-executor455 Not tainted 5.11.0-rc7-syzkaller #0 [ 67.903672][ T8442] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.913725][ T8442] RIP: 0010:nl802154_del_llsec_dev+0x150/0x310 [ 67.919884][ T8442] Code: 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 c4 01 00 00 48 8b 93 18 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 d1 48 c1 e9 03 <0f> b6 0c 01 48 89 d0 83 e0 07 83 c0 01 38 c8 7c 08 84 c9 0f 85 13 [ 67.939473][ T8442] RSP: 0018:ffffc90001a5f568 EFLAGS: 00010246 [ 67.945520][ T8442] RAX: dffffc0000000000 RBX: ffff888018e2b000 RCX: 0000000000000000 [ 67.953471][ T8442] RDX: 0000000000000000 RSI: ffffffff888b458a RDI: ffff888018e2b118 [ 67.961428][ T8442] RBP: 1ffff9200034beae R08: 0000000000000000 R09: 0000000000000000 [ 67.969397][ T8442] R10: ffffffff8732d43a R11: 0000000000000000 R12: ffff88801b57a000 [ 67.977348][ T8442] R13: ffff888144b08bd0 R14: ffffc90001a5f8b0 R15: 0000000000000000 [ 67.985298][ T8442] FS: 000000000167e300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 67.994209][ T8442] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 68.000772][ T8442] CR2: 0000000020000b00 CR3: 000000001243f000 CR4: 00000000001506f0 [ 68.008736][ T8442] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 68.016706][ T8442] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 68.024669][ T8442] Call Trace: [ 68.027954][ T8442] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 68.034186][ T8442] ? nl802154_wpan_phy_netns+0x2c0/0x2c0 [ 68.039830][ T8442] ? __nla_parse+0x3d/0x50 [ 68.044229][ T8442] ? nl802154_get_llsec_params+0x390/0x390 [ 68.050017][ T8442] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 68.056241][ T8442] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x1b7/0x290 [ 68.063614][ T8442] ? genl_family_rcv_msg_attrs_parse.constprop.0+0xaf/0x290 [ 68.070906][ T8442] genl_family_rcv_msg_doit+0x228/0x320 [ 68.076462][ T8442] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x290/0x290 [ 68.083827][ T8442] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 68.090068][ T8442] ? ns_capable+0xde/0x100 [ 68.094486][ T8442] genl_rcv_msg+0x328/0x580 [ 68.098984][ T8442] ? genl_get_cmd+0x480/0x480 [ 68.103740][ T8442] ? nl802154_wpan_phy_netns+0x2c0/0x2c0 [ 68.109369][ T8442] ? lock_release+0x710/0x710 [ 68.114055][ T8442] netlink_rcv_skb+0x153/0x420 [ 68.118820][ T8442] ? genl_get_cmd+0x480/0x480 [ 68.123482][ T8442] ? netlink_ack+0xaa0/0xaa0 [ 68.128060][ T8442] genl_rcv+0x24/0x40 [ 68.132037][ T8442] netlink_unicast+0x533/0x7d0 [ 68.136795][ T8442] ? netlink_attachskb+0x870/0x870 [ 68.141894][ T8442] ? _copy_from_iter_full+0x275/0x850 [ 68.147246][ T8442] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 68.153471][ T8442] ? __phys_addr_symbol+0x2c/0x70 [ 68.158489][ T8442] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 68.164203][ T8442] ? __check_object_size+0x171/0x3f0 [ 68.169483][ T8442] netlink_sendmsg+0x856/0xd90 [ 68.174239][ T8442] ? netlink_unicast+0x7d0/0x7d0 [ 68.179157][ T8442] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 68.185381][ T8442] ? netlink_unicast+0x7d0/0x7d0 [ 68.190301][ T8442] sock_sendmsg+0xcf/0x120 [ 68.194710][ T8442] ____sys_sendmsg+0x6e8/0x810 [ 68.199464][ T8442] ? kernel_sendmsg+0x50/0x50 [ 68.204120][ T8442] ? do_recvmmsg+0x6c0/0x6c0 [ 68.208693][ T8442] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 68.214924][ T8442] ? netlink_recvmsg+0x826/0xee0 [ 68.219877][ T8442] ___sys_sendmsg+0xf3/0x170 [ 68.224484][ T8442] ? sendmsg_copy_msghdr+0x160/0x160 [ 68.229767][ T8442] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 68.236028][ T8442] ? security_socket_recvmsg+0x8f/0xc0 [ 68.241478][ T8442] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 68.247708][ T8442] ? __sys_recvfrom+0x2cc/0x3a0 [ 68.252581][ T8442] ? __ia32_sys_send+0x100/0x100 [ 68.257501][ T8442] ? fd_install+0x1e3/0x640 [ 68.261993][ T8442] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 68.268236][ T8442] ? __fget_light+0x215/0x280 [ 68.272914][ T8442] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 68.282453][ T8442] __sys_sendmsg+0xe5/0x1b0 [ 68.286981][ T8442] ? __sys_sendmsg_sock+0xb0/0xb0 [ 68.292019][ T8442] ? syscall_enter_from_user_mode+0x1d/0x50 [ 68.297918][ T8442] do_syscall_64+0x2d/0x70 [ 68.302330][ T8442] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 68.308225][ T8442] RIP: 0033:0x43f969 [ 68.312107][ T8442] Code: 28 c3 e8 5a 14 00 00 66 2e 0f 1f 84 00 00 00 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 68.331697][ T8442] RSP: 002b:00007ffc21f9e5f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 68.340091][ T8442] RAX: ffffffffffffffda RBX: 00000000004004a0 RCX: 000000000043f969 [ 68.348044][ T8442] RDX: 0000000020008800 RSI: 0000000020000600 RDI: 0000000000000003 [ 68.356007][ T8442] RBP: 00000000004033d0 R08: 0000000000000008 R09: 00000000004004a0 [ 68.363961][ T8442] R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000403460 [ 68.371921][ T8442] R13: 0000000000000000 R14: 00000000004ad018 R15: 00000000004004a0 [ 68.379888][ T8442] Modules linked in: [ 68.385764][ T8442] ---[ end trace 9db5c765a47e379e ]--- [ 68.391280][ T8442] RIP: 0010:nl802154_del_llsec_dev+0x150/0x310 [ 68.397445][ T8442] Code: 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 c4 01 00 00 48 8b 93 18 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 d1 48 c1 e9 03 <0f> b6 0c 01 48 89 d0 83 e0 07 83 c0 01 38 c8 7c 08 84 c9 0f 85 13 [ 68.417336][ T8442] RSP: 0018:ffffc90001a5f568 EFLAGS: 00010246 [ 68.423457][ T8442] RAX: dffffc0000000000 RBX: ffff888018e2b000 RCX: 0000000000000000 [ 68.431492][ T8442] RDX: 0000000000000000 RSI: ffffffff888b458a RDI: ffff888018e2b118 [ 68.439459][ T8442] RBP: 1ffff9200034beae R08: 0000000000000000 R09: 0000000000000000 [ 68.447501][ T8442] R10: ffffffff8732d43a R11: 0000000000000000 R12: ffff88801b57a000 [ 68.455520][ T8442] R13: ffff888144b08bd0 R14: ffffc90001a5f8b0 R15: 0000000000000000 [ 68.463557][ T8442] FS: 000000000167e300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 68.472545][ T8442] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 68.479158][ T8442] CR2: 00007fbf353646c0 CR3: 000000001243f000 CR4: 00000000001506e0 [ 68.487144][ T8442] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 68.495164][ T8442] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 68.503172][ T8442] Kernel panic - not syncing: Fatal exception [ 68.509763][ T8442] Kernel Offset: disabled [ 68.514096][ T8442] Rebooting in 86400 seconds..