general protection fault in nl802154_del_llsec

general protection fault in nl802154_del_llsec_dev
Status: upstream: reported C repro on 2021/02/18 17:21
Reported-by: syzbot+d946223c2e751d136c94@syzkaller.appspotmail.com
Fix commit: 3d1eac2f4558 net: ieee802154: fix nl802154 del llsec dev
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte ci-qemu2-riscv64 ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-gce-leak ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kasan-gce-selinux-root ci-upstream-kasan-gce-smack-root ci-upstream-kmsan-gce ci-upstream-kmsan-gce-386 ci-upstream-linux-next-kasan-gce-root ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce ci2-upstream-kcsan-gce ci2-upstream-usb], missing on: [ci-qemu2-arm32]
First crash: 162d, last: 106d

Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: general protection fault in nl802154_del_llsec_dev (log)
Repro: C syz .config

similar bugs (2):
Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-4.19	general protection fault in nl802154_del_llsec_dev	C		done	70	104d	160d	1/1	fixed on 2021/05/12 18:44
linux-4.14	general protection fault in nl802154_del_llsec_dev	C		done	136	101d	162d	1/1	fixed on 2021/05/16 01:11

Sample crash report:

general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 PID: 8399 Comm: syz-executor205 Not tainted 5.12.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:nla_len include/net/netlink.h:1148 [inline]
RIP: 0010:nla_parse_nested_deprecated include/net/netlink.h:1231 [inline]
RIP: 0010:nl802154_del_llsec_dev+0x150/0x310 net/ieee802154/nl802154.c:1760
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
RSP: 0018:ffffc90000fff568 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff8880138be000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8890b5ca RDI: ffff8880138be118
RBP: 1ffff920001ffeae R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff87380a7a R11: 0000000000000000 R12: ffff88801adbe000
R13: ffff88801ade0c10 R14: ffffc90000fff8b0 R15: 0000000000000000
FS:  0000000001a68300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000048 CR3: 00000000180ac000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 genl_family_rcv_msg_doit+0x228/0x320 net/netlink/genetlink.c:739
 genl_family_rcv_msg net/netlink/genetlink.c:783 [inline]
 genl_rcv_msg+0x328/0x580 net/netlink/genetlink.c:800
 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2502
 genl_rcv+0x24/0x40 net/netlink/genetlink.c:811
 netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline]
 netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1338
 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1927
 sock_sendmsg_nosec net/socket.c:654 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:674
 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2350
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2404
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2433
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x43fa49
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
RSP: 002b:00007ffe2be80dd8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00000000004004a0 RCX: 000000000043fa49
RDX: 0000000020040040 RSI: 0000000020000100 RDI: 0000000000000003
RBP: 00000000004034b0 R08: 000000000000000c R09: 00000000004004a0
R10: 0000000000000006 R11: 0000000000000246 R12: 0000000000403540
R13: 0000000000000000 R14: 00000000004ad018 R15: 00000000004004a0
Modules linked in:
---[ end trace d194446cffc8140b ]---
RIP: 0010:nla_len include/net/netlink.h:1148 [inline]
RIP: 0010:nla_parse_nested_deprecated include/net/netlink.h:1231 [inline]
RIP: 0010:nl802154_del_llsec_dev+0x150/0x310 net/ieee802154/nl802154.c:1760
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
RSP: 0018:ffffc90000fff568 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff8880138be000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8890b5ca RDI: ffff8880138be118
RBP: 1ffff920001ffeae R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff87380a7a R11: 0000000000000000 R12: ffff88801adbe000
R13: ffff88801ade0c10 R14: ffffc90000fff8b0 R15: 0000000000000000
FS:  0000000001a68300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000048 CR3: 00000000180ac000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (166):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Title
ci-upstream-net-this-kasan-gce	2021/04/01 04:49	net	d47ec7a0a727	6a81331a	.config	log	report	syz	C		general protection fault in nl802154_del_llsec_dev
ci-upstream-net-this-kasan-gce	2021/02/15 04:54	net	57baf8cc70ea	98682e5e	.config	log	report	syz	C		general protection fault in nl802154_del_llsec_dev
ci-upstream-net-this-kasan-gce	2021/02/13 12:44	net	57baf8cc70ea	98682e5e	.config	log	report	syz	C		general protection fault in nl802154_del_llsec_dev
ci-upstream-net-kasan-gce	2021/04/01 06:52	net-next	917e2e6c5798	6a81331a	.config	log	report	syz	C		general protection fault in nl802154_del_llsec_dev
ci-upstream-net-kasan-gce	2021/02/15 08:13	net-next	c48f86071027	98682e5e	.config	log	report	syz	C		general protection fault in nl802154_del_llsec_dev
ci-upstream-net-kasan-gce	2021/02/13 15:56	net-next	773dc50d7169	98682e5e	.config	log	report	syz	C		general protection fault in nl802154_del_llsec_dev
ci-upstream-kasan-gce-selinux-root	2021/04/09 22:42	upstream	17e7124aad76	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-kasan-gce-selinux-root	2021/04/09 12:55	upstream	4fa56ad0d12e	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-kasan-gce-selinux-root	2021/04/09 09:11	upstream	4fa56ad0d12e	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-kasan-gce-smack-root	2021/04/09 07:12	upstream	4fa56ad0d12e	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-kasan-gce-root	2021/04/08 05:40	upstream	3a22981230f9	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-kasan-gce-smack-root	2021/04/07 15:19	upstream	2d743660786e	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-kasan-gce-root	2021/04/06 14:12	upstream	0a50438c8436	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-kasan-gce-smack-root	2021/04/05 09:51	upstream	e49d033bddf5	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-kasan-gce-smack-root	2021/04/04 06:28	upstream	57fbdb15ec42	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-kasan-gce-root	2021/04/02 21:46	upstream	1678e493d530	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-kasan-gce-selinux-root	2021/03/30 07:19	upstream	1e43c377a79f	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-kasan-gce-selinux-root	2021/03/30 06:10	upstream	1e43c377a79f	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-qemu-upstream	2021/02/27 17:23	upstream	3fb6d0e00efc	4c37c133	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-net-this-kasan-gce	2021/04/08 04:04	net	5219d6012d46	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-net-this-kasan-gce	2021/04/07 20:20	net	0f6925b3e8da	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-net-this-kasan-gce	2021/04/07 16:28	net	0f6925b3e8da	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-net-this-kasan-gce	2021/04/05 22:25	net	a14d273ba159	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-net-this-kasan-gce	2021/04/05 20:30	net	a14d273ba159	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-net-this-kasan-gce	2021/04/04 20:57	net	a14d273ba159	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-net-this-kasan-gce	2021/04/03 13:09	net	990b03b05b2f	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-net-this-kasan-gce	2021/04/03 06:54	net	990b03b05b2f	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-net-this-kasan-gce	2021/04/02 08:43	net	9256ce331101	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-net-this-kasan-gce	2021/04/01 01:01	net	d47ec7a0a727	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-net-this-kasan-gce	2021/03/31 11:03	net	61431a5907fc	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-net-this-kasan-gce	2021/03/28 23:41	net	75887e881b19	a8529b82	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-net-kasan-gce	2021/04/10 19:01	net-next	626b598aa8be	bfeda1b1	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-net-kasan-gce	2021/04/09 21:23	net-next	4438669eb703	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-net-kasan-gce	2021/04/09 20:05	net-next	4438669eb703	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-net-kasan-gce	2021/04/09 16:49	net-next	4438669eb703	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-net-kasan-gce	2021/04/06 09:45	net-next	cc0626c2aaed	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-net-kasan-gce	2021/04/06 02:12	net-next	514e1150da9c	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-net-kasan-gce	2021/04/05 05:34	net-next	7d42e84eb99d	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-net-kasan-gce	2021/04/05 02:56	net-next	7d42e84eb99d	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-net-kasan-gce	2021/04/04 11:33	net-next	428e68e1a85a	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-net-kasan-gce	2021/04/04 09:03	net-next	428e68e1a85a	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-net-kasan-gce	2021/04/03 21:33	net-next	825066651792	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-net-kasan-gce	2021/04/03 14:11	net-next	f3f409a9b7f5	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-net-kasan-gce	2021/04/03 10:49	net-next	f3f409a9b7f5	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-net-kasan-gce	2021/04/01 04:45	net-next	917e2e6c5798	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-net-kasan-gce	2021/03/31 17:05	net-next	37f368d8d09d	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-net-kasan-gce	2021/03/31 02:14	net-next	37f368d8d09d	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-net-kasan-gce	2021/03/29 21:16	net-next	37f368d8d09d	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-net-kasan-gce	2021/03/29 12:05	net-next	72642f4127c3	a8529b82	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-net-kasan-gce	2021/03/28 20:07	net-next	a1281601f88e	a8529b82	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-linux-next-kasan-gce-root	2021/04/08 11:35	linux-next	5103a5be098c	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-linux-next-kasan-gce-root	2021/04/07 18:27	linux-next	5103a5be098c	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-linux-next-kasan-gce-root	2021/04/04 22:56	linux-next	454c576c3f5e	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-linux-next-kasan-gce-root	2021/04/03 23:51	linux-next	454c576c3f5e	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-linux-next-kasan-gce-root	2021/04/01 17:17	linux-next	454c576c3f5e	6a81331a	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-linux-next-kasan-gce-root	2021/03/28 22:01	linux-next	931294922e65	a8529b82	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-upstream-linux-next-kasan-gce-root	2021/03/28 18:34	linux-next	931294922e65	a8529b82	.config	log	report			info	general protection fault in nl802154_del_llsec_dev
ci-qemu2-arm64	2021/03/12 15:16	upstream	28806e4d9b97	429d8a6b	.config	log	report			info	BUG: unable to handle kernel paging request in nl802154_del_llsec_dev
ci-qemu2-arm64-compat	2021/03/06 18:05	upstream	a38fd8748464	e4b4d570	.config	log	report			info	BUG: unable to handle kernel paging request in nl802154_del_llsec_dev