[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.20' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 37.404735] kasan: CONFIG_KASAN_INLINE enabled [ 37.410040] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 37.417606] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 37.423874] CPU: 1 PID: 8065 Comm: syz-executor171 Not tainted 4.19.178-syzkaller #0 [ 37.431745] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.442002] RIP: 0010:ieee802154_llsec_parse_dev_addr+0x2b0/0x370 [ 37.448328] Code: 00 0f 85 d5 00 00 00 48 89 5d 08 e9 5c ff ff ff e8 f5 0a 9d f9 49 8d 7e 04 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 04 84 d2 75 7d 48 [ 37.468000] RSP: 0018:ffff8880a25f7450 EFLAGS: 00010247 [ 37.473386] RAX: dffffc0000000000 RBX: 0000000000000002 RCX: ffffffff87c554fe [ 37.481176] RDX: 0000000000000000 RSI: ffffffff87c555bb RDI: 0000000000000004 [ 37.488872] RBP: ffff8880a25f7650 R08: 0000000000000001 R09: 0000000000000003 [ 37.496311] R10: 0000000000000001 R11: 0000000000000001 R12: 1ffff110144bee8a [ 37.503944] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880aab25a78 [ 37.511468] FS: 0000000000c3d300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 37.519861] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.526033] CR2: 00007f60718256c0 CR3: 00000000aa872000 CR4: 00000000001406e0 [ 37.533559] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.541098] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.548864] Call Trace: [ 37.551448] ? wpan_phy_sysfs_exit+0x20/0x20 [ 37.556346] ? nla_parse+0x1b2/0x290 [ 37.560060] ieee802154_llsec_parse_key_id+0x340/0x410 [ 37.565390] ? ieee802154_llsec_parse_dev_addr+0x370/0x370 [ 37.571221] ? nla_memcpy+0x88/0xa0 [ 37.575708] ? nl802154_post_doit+0x170/0x170 [ 37.580311] nl802154_set_llsec_params+0x1db/0x470 [ 37.585349] ? ieee802154_llsec_parse_key_id+0x410/0x410 [ 37.591576] ? nl802154_pre_doit+0xf0/0xcd0 [ 37.596323] ? validate_nla+0x270/0x820 [ 37.600516] ? nl802154_dump_wpan_phy_done+0x40/0x40 [ 37.605961] ? nla_parse+0x1b2/0x290 [ 37.609944] ? nl802154_dump_wpan_phy_done+0x40/0x40 [ 37.615311] genl_family_rcv_msg+0x642/0xc40 [ 37.619725] ? genl_rcv+0x40/0x40 [ 37.623371] ? genl_rcv_msg+0x12f/0x160 [ 37.627512] ? __mutex_add_waiter+0x160/0x160 [ 37.632114] ? __radix_tree_lookup+0x216/0x370 [ 37.636878] genl_rcv_msg+0xbf/0x160 [ 37.640684] netlink_rcv_skb+0x160/0x440 [ 37.645007] ? genl_family_rcv_msg+0xc40/0xc40 [ 37.649756] ? netlink_ack+0xae0/0xae0 [ 37.653844] ? genl_rcv+0x15/0x40 [ 37.657577] genl_rcv+0x24/0x40 [ 37.660991] netlink_unicast+0x4d5/0x690 [ 37.665198] ? netlink_sendskb+0x110/0x110 [ 37.669929] ? _copy_from_iter_full+0x229/0x7c0 [ 37.674877] ? __phys_addr_symbol+0x2c/0x70 [ 37.679193] ? __check_object_size+0x17b/0x3e0 [ 37.683767] netlink_sendmsg+0x6bb/0xc40 [ 37.687922] ? aa_af_perm+0x230/0x230 [ 37.691921] ? nlmsg_notify+0x1a0/0x1a0 [ 37.695986] ? kernel_recvmsg+0x220/0x220 [ 37.700162] ? nlmsg_notify+0x1a0/0x1a0 [ 37.704522] sock_sendmsg+0xc3/0x120 [ 37.709372] ___sys_sendmsg+0x7bb/0x8e0 [ 37.713462] ? lock_acquire+0x170/0x3c0 [ 37.717425] ? copy_msghdr_from_user+0x440/0x440 [ 37.722822] ? lock_downgrade+0x720/0x720 [ 37.727262] ? lock_acquire+0x170/0x3c0 [ 37.731619] ? debug_object_active_state+0x104/0x330 [ 37.738204] ? mark_held_locks+0xf0/0xf0 [ 37.743437] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 37.748502] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 37.754577] ? debug_object_active_state+0x254/0x330 [ 37.760308] ? debug_object_init_on_stack+0x20/0x20 [ 37.765348] ? kfree+0x110/0x210 [ 37.768952] ? __fdget+0x1a0/0x230 [ 37.772872] __x64_sys_sendmsg+0x132/0x220 [ 37.777387] ? __sys_sendmsg+0x1b0/0x1b0 [ 37.781547] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 37.787619] ? trace_hardirqs_off_caller+0x6e/0x210 [ 37.792731] ? do_syscall_64+0x21/0x620 [ 37.796964] do_syscall_64+0xf9/0x620 [ 37.801257] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.806533] RIP: 0033:0x43fc09 [ 37.809831] 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 [ 37.829338] RSP: 002b:00007fff83da7978 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 37.837285] RAX: ffffffffffffffda RBX: 00000000004004a0 RCX: 000000000043fc09 [ 37.845180] RDX: 0000000000000040 RSI: 0000000020000680 RDI: 0000000000000003 [ 37.852901] RBP: 0000000000403670 R08: 0000000000000004 R09: 00000000004004a0 [ 37.860874] R10: 000000000000000c R11: 0000000000000246 R12: 0000000000403700 [ 37.868491] R13: 0000000000000000 R14: 00000000004ad018 R15: 00000000004004a0 [ 37.876128] Modules linked in: [ 37.880076] ---[ end trace 78da248b15a893f0 ]--- [ 37.884951] RIP: 0010:ieee802154_llsec_parse_dev_addr+0x2b0/0x370 [ 37.891809] Code: 00 0f 85 d5 00 00 00 48 89 5d 08 e9 5c ff ff ff e8 f5 0a 9d f9 49 8d 7e 04 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 04 84 d2 75 7d 48 [ 37.911589] RSP: 0018:ffff8880a25f7450 EFLAGS: 00010247 [ 37.917507] RAX: dffffc0000000000 RBX: 0000000000000002 RCX: ffffffff87c554fe [ 37.925515] RDX: 0000000000000000 RSI: ffffffff87c555bb RDI: 0000000000000004 [ 37.933875] RBP: ffff8880a25f7650 R08: 0000000000000001 R09: 0000000000000003 [ 37.941916] R10: 0000000000000001 R11: 0000000000000001 R12: 1ffff110144bee8a [ 37.949994] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880aab25a78 [ 37.957809] FS: 0000000000c3d300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 37.966876] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.974013] CR2: 00007f60718256c0 CR3: 00000000aa872000 CR4: 00000000001406e0 [ 37.981983] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.989785] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.997958] Kernel panic - not syncing: Fatal exception [ 38.005824] Kernel Offset: disabled [ 38.009631] Rebooting in 86400 seconds..