[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.48' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 36.669525] kasan: CONFIG_KASAN_INLINE enabled [ 36.674558] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 36.682993] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 36.689779] CPU: 0 PID: 8104 Comm: syz-executor794 Not tainted 4.19.172-syzkaller #0 [ 36.698024] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.708670] RIP: 0010:nl802154_del_llsec_dev+0x14e/0x320 [ 36.714393] Code: 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 ce 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 0b [ 36.735063] RSP: 0018:ffff88808d4f7628 EFLAGS: 00010246 [ 36.740941] RAX: dffffc0000000000 RBX: ffff88823aa8f7c0 RCX: 0000000000000000 [ 36.748561] RDX: 0000000000000000 RSI: ffffffff87c508e8 RDI: ffff88823aa8f8d8 [ 36.756736] RBP: 1ffff11011a9eec7 R08: 0000000000000000 R09: ffff88808d4f7920 [ 36.765149] R10: 0000000000000005 R11: 0000000000000001 R12: ffff8880ab5ceec0 [ 36.772766] R13: ffff8880ab56d090 R14: ffff88823aa8f7c0 R15: ffffffff89cf57c0 [ 36.780455] FS: 000000000056d300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 36.789385] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.795665] CR2: 0000000020000b00 CR3: 00000000b3aec000 CR4: 00000000001406f0 [ 36.804487] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.812313] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.821068] Call Trace: [ 36.823884] ? nl802154_del_llsec_key+0x340/0x340 [ 36.829203] ? validate_nla+0x270/0x820 [ 36.833170] ? nl802154_dump_wpan_phy_done+0x40/0x40 [ 36.838574] ? nla_parse+0x1b2/0x290 [ 36.842513] ? nl802154_dump_wpan_phy_done+0x40/0x40 [ 36.847821] ? nl802154_dump_wpan_phy_done+0x40/0x40 [ 36.853714] genl_family_rcv_msg+0x642/0xc40 [ 36.858855] ? genl_rcv+0x40/0x40 [ 36.862741] ? genl_rcv_msg+0x12f/0x160 [ 36.867803] ? __mutex_add_waiter+0x160/0x160 [ 36.873223] ? __radix_tree_lookup+0x216/0x370 [ 36.878543] genl_rcv_msg+0xbf/0x160 [ 36.883220] netlink_rcv_skb+0x160/0x440 [ 36.887732] ? genl_family_rcv_msg+0xc40/0xc40 [ 36.892704] ? netlink_ack+0xae0/0xae0 [ 36.896958] ? genl_rcv+0x15/0x40 [ 36.900501] genl_rcv+0x24/0x40 [ 36.903953] netlink_unicast+0x4d5/0x690 [ 36.908246] ? netlink_sendskb+0x110/0x110 [ 36.912633] ? _copy_from_iter_full+0x229/0x7c0 [ 36.917405] ? __phys_addr_symbol+0x2c/0x70 [ 36.921976] ? __check_object_size+0x17b/0x3e0 [ 36.927287] netlink_sendmsg+0x6bb/0xc40 [ 36.931924] ? aa_af_perm+0x230/0x230 [ 36.935977] ? nlmsg_notify+0x1a0/0x1a0 [ 36.940938] ? kernel_recvmsg+0x220/0x220 [ 36.945215] ? nlmsg_notify+0x1a0/0x1a0 [ 36.949784] sock_sendmsg+0xc3/0x120 [ 36.953892] ___sys_sendmsg+0x7bb/0x8e0 [ 36.958160] ? copy_msghdr_from_user+0x440/0x440 [ 36.963977] ? netlink_dump+0xc10/0xc10 [ 36.968490] ? nlmsg_notify+0x1a0/0x1a0 [ 36.972890] ? security_socket_recvmsg+0x8f/0xc0 [ 36.978020] ? __sys_recvfrom+0x2cd/0x3a0 [ 36.982506] ? __ia32_sys_send+0x100/0x100 [ 36.986751] ? __fdget+0x1a0/0x230 [ 36.990297] __x64_sys_sendmsg+0x132/0x220 [ 36.994704] ? __sys_sendmsg+0x1b0/0x1b0 [ 36.998942] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 37.004593] ? trace_hardirqs_off_caller+0x6e/0x210 [ 37.010483] ? do_syscall_64+0x21/0x620 [ 37.015335] do_syscall_64+0xf9/0x620 [ 37.019485] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.025868] RIP: 0033:0x43f969 [ 37.029229] 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 [ 37.048667] RSP: 002b:00007fffdf1eee48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 37.056929] RAX: ffffffffffffffda RBX: 00000000004004a0 RCX: 000000000043f969 [ 37.065330] RDX: 0000000020008800 RSI: 0000000020000600 RDI: 0000000000000003 [ 37.072862] RBP: 00000000004033d0 R08: 0000000000000008 R09: 00000000004004a0 [ 37.080818] R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000403460 [ 37.089230] R13: 0000000000000000 R14: 00000000004ad018 R15: 00000000004004a0 [ 37.097528] Modules linked in: [ 37.111024] ---[ end trace c5cc933d9ef2cdea ]--- [ 37.115990] RIP: 0010:nl802154_del_llsec_dev+0x14e/0x320 [ 37.122225] Code: 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 ce 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 0b [ 37.143665] RSP: 0018:ffff88808d4f7628 EFLAGS: 00010246 [ 37.150638] RAX: dffffc0000000000 RBX: ffff88823aa8f7c0 RCX: 0000000000000000 [ 37.161452] RDX: 0000000000000000 RSI: ffffffff87c508e8 RDI: ffff88823aa8f8d8 [ 37.170193] RBP: 1ffff11011a9eec7 R08: 0000000000000000 R09: ffff88808d4f7920 [ 37.178403] R10: 0000000000000005 R11: 0000000000000001 R12: ffff8880ab5ceec0 [ 37.186862] R13: ffff8880ab56d090 R14: ffff88823aa8f7c0 R15: ffffffff89cf57c0 [ 37.194978] FS: 000000000056d300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 37.204283] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.210830] CR2: 000055656d94fcf0 CR3: 00000000b3aec000 CR4: 00000000001406f0 [ 37.219572] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.228355] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.236603] Kernel panic - not syncing: Fatal exception [ 37.244192] Kernel Offset: disabled [ 37.247827] Rebooting in 86400 seconds..