syzbot


general protection fault in nl802154_del_llsec_devkey

Status: fixed on 2021/11/10 00:50
Reported-by: syzbot+368672e0da240db53b5f@syzkaller.appspotmail.com
Fix commit: 27c746869e1a net: ieee802154: fix nl802154 del llsec devkey
First crash: 498d, last: 442d

Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: general protection fault in nl802154_del_llsec_devkey (log)
Repro: C syz .config
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 general protection fault in nl802154_del_llsec_devkey C done 171 436d 498d 1/1 fixed on 2021/05/17 08:49
linux-4.19 general protection fault in nl802154_del_llsec_devkey C done 110 439d 498d 1/1 fixed on 2021/05/15 09:40

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: 0 PID: 8442 Comm: syz-executor604 Not tainted 5.11.0-rc7-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_devkey+0x165/0x370 net/ieee802154/nl802154.c:1916
Code: 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 c9 01 00 00 48 8b 93 20 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 54
RSP: 0018:ffffc9000734f528 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff8880183ee400 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8889170f RDI: ffff8880183ee520
RBP: 1ffff92000e69ea6 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff87315ffa R11: 0000000000000000 R12: ffff888144394000
R13: ffff88801bd80bd0 R14: ffffc9000734f8b0 R15: 0000000000000000
FS:  0000000001a44300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000408 CR3: 0000000013300000 CR4: 00000000001506f0
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:2494
 genl_rcv+0x24/0x40 net/netlink/genetlink.c:811
 netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline]
 netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1330
 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:672
 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2345
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2399
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2432
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x43f8a9
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:00007ffeb69f7518 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00000000004004a0 RCX: 000000000043f8a9
RDX: 0000000024000044 RSI: 00000000200007c0 RDI: 0000000000000004
RBP: 0000000000403310 R08: 00000000004004a0 R09: 00000000004004a0
R10: 0000000000000006 R11: 0000000000000246 R12: 00000000004033a0
R13: 0000000000000000 R14: 00000000004ad018 R15: 00000000004004a0
Modules linked in:
---[ end trace f6610dc4e783dd3a ]---
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_devkey+0x165/0x370 net/ieee802154/nl802154.c:1916
Code: 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 c9 01 00 00 48 8b 93 20 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 54
RSP: 0018:ffffc9000734f528 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff8880183ee400 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8889170f RDI: ffff8880183ee520
RBP: 1ffff92000e69ea6 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff87315ffa R11: 0000000000000000 R12: ffff888144394000
R13: ffff88801bd80bd0 R14: ffffc9000734f8b0 R15: 0000000000000000
FS:  0000000001a44300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f236003e108 CR3: 0000000013300000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (229):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-net-this-kasan-gce 2021/02/13 12:21 net 57baf8cc70ea 98682e5e .config log report syz C general protection fault in nl802154_del_llsec_devkey
ci-upstream-kasan-gce-root 2021/04/09 14:21 upstream 4fa56ad0d12e 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-kasan-gce-smack-root 2021/04/08 17:39 upstream 454859c552da 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-kasan-gce-root 2021/04/08 09:49 upstream 3a22981230f9 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-kasan-gce-selinux-root 2021/04/06 09:59 upstream 0a50438c8436 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-kasan-gce-smack-root 2021/04/04 04:52 upstream 57fbdb15ec42 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-kasan-gce-smack-root 2021/04/01 02:31 upstream 5e46d1b78a03 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-kasan-gce-root 2021/03/30 03:30 upstream 1e43c377a79f 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-qemu-upstream 2021/02/27 04:30 upstream 8b83369ddcb3 4c37c133 .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-this-kasan-gce 2021/04/08 00:23 net 5219d6012d46 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-this-kasan-gce 2021/04/06 19:33 net 08c27f3322fe 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-this-kasan-gce 2021/04/05 17:09 net a14d273ba159 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-this-kasan-gce 2021/04/05 11:08 net a14d273ba159 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-this-kasan-gce 2021/04/05 05:11 net a14d273ba159 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-this-kasan-gce 2021/04/04 17:56 net a14d273ba159 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-this-kasan-gce 2021/04/03 22:22 net a14d273ba159 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-this-kasan-gce 2021/04/03 20:03 net a14d273ba159 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-this-kasan-gce 2021/04/03 18:12 net a14d273ba159 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-this-kasan-gce 2021/04/03 11:42 net 990b03b05b2f 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-this-kasan-gce 2021/04/02 07:54 net 9256ce331101 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-this-kasan-gce 2021/04/02 05:29 net 9256ce331101 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-this-kasan-gce 2021/03/31 17:55 net 61431a5907fc 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-this-kasan-gce 2021/03/30 19:11 net 6e5a03bcba44 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-this-kasan-gce 2021/03/30 12:51 net fb6ec87f7229 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-this-kasan-gce 2021/03/29 08:02 net 1b479fb80160 a8529b82 .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-this-kasan-gce 2021/03/28 21:10 net 75887e881b19 a8529b82 .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-kasan-gce 2021/04/10 13:48 net-next 626b598aa8be bfeda1b1 .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-kasan-gce 2021/04/10 09:17 net-next 626b598aa8be bfeda1b1 .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-kasan-gce 2021/04/09 20:18 net-next 4438669eb703 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-kasan-gce 2021/04/09 18:07 net-next 4438669eb703 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-kasan-gce 2021/04/08 14:42 net-next 3cd52c1e32fe 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-kasan-gce 2021/04/08 02:04 net-next 0b35e0deb5be 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-kasan-gce 2021/04/07 17:14 net-next be107538c529 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-kasan-gce 2021/04/07 10:32 net-next be107538c529 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-kasan-gce 2021/04/06 14:59 net-next cc0626c2aaed 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-kasan-gce 2021/04/06 03:42 net-next 514e1150da9c 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-kasan-gce 2021/04/05 13:47 net-next 7d42e84eb99d 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-kasan-gce 2021/04/05 07:45 net-next 7d42e84eb99d 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-kasan-gce 2021/04/04 20:41 net-next 7d42e84eb99d 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-kasan-gce 2021/04/04 16:32 net-next 428e68e1a85a 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-kasan-gce 2021/04/04 12:36 net-next 428e68e1a85a 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-kasan-gce 2021/04/04 11:24 net-next 428e68e1a85a 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-kasan-gce 2021/04/04 07:55 net-next 428e68e1a85a 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-kasan-gce 2021/04/04 01:14 net-next 825066651792 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-kasan-gce 2021/04/03 13:51 net-next f3f409a9b7f5 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-kasan-gce 2021/04/02 12:11 net-next bd78980be1a6 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-kasan-gce 2021/04/01 03:39 net-next 917e2e6c5798 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-kasan-gce 2021/03/31 14:53 net-next 37f368d8d09d 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-kasan-gce 2021/03/30 04:49 net-next 37f368d8d09d 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-kasan-gce 2021/03/30 00:55 net-next 37f368d8d09d 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-net-kasan-gce 2021/03/28 18:57 net-next a1281601f88e a8529b82 .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-linux-next-kasan-gce-root 2021/04/06 21:28 linux-next 9c54130cd255 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-linux-next-kasan-gce-root 2021/04/03 22:55 linux-next 454c576c3f5e 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-linux-next-kasan-gce-root 2021/04/01 19:23 linux-next 454c576c3f5e 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-upstream-linux-next-kasan-gce-root 2021/03/31 10:00 linux-next 931294922e65 6a81331a .config log report info general protection fault in nl802154_del_llsec_devkey
ci-qemu2-arm64 2021/03/08 11:17 upstream 144c79ef3353 09fbf400 .config log report info BUG: unable to handle kernel paging request in nl802154_del_llsec_devkey
ci-qemu2-arm64 2021/02/24 01:59 upstream 3b9cdafb5358 fcc6d71b .config log report info BUG: unable to handle kernel paging request in nl802154_del_llsec_devkey