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general protection fault in ax25cmp

Status: fixed on 2019/03/06 07:43
Subsystems: hams
[Documentation on labels]
Reported-by: syzbot+1a2c456a1ea08fa5b5f7@syzkaller.appspotmail.com
Fix commit: b0cf029234f9 net/rose: fix NULL ax25_cb kernel panic
First crash: 2094d, last: 2057d
▶ ▼ Discussions (9)
Title Replies (including bot) Last reply
[PATCH 4.4 00/65] 4.4.173-stable review 73 (73) 2019/02/05 15:12
[PATCH 4.20 00/80] 4.20.7-stable review 84 (84) 2019/02/05 14:43
[PATCH 4.14 00/46] 4.14.98-stable review 51 (51) 2019/02/05 14:42
[PATCH 3.18 00/31] 3.18.134-stable review 36 (36) 2019/02/05 14:41
[PATCH 4.9 00/30] 4.9.155-stable review 36 (36) 2019/02/05 11:38
[PATCH 4.19 00/74] 4.19.20-stable review 77 (77) 2019/02/05 06:14
[PATCH] net/rose: fix NULL ax25_cb kernel panic 2 (2) 2019/01/27 18:41
[PATCH] NET:AX25:ROSE NULL ax25_cb kernel panic 7 (7) 2019/01/24 17:30
general protection fault in ax25cmp 0 (1) 2018/12/28 19:51

Sample crash report:
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 2698 Comm: aoe_tx0 Not tainted 5.0.0-rc3+ #48
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:ax25cmp+0x3e/0x180 net/ax25/ax25_addr.c:122
Code: f6 41 55 49 89 fd 41 54 53 48 89 f3 48 83 ec 10 48 89 7d d0 48 89 75 c8 e8 df bf 7f fa 4c 89 e8 4c 89 ea 48 c1 e8 03 83 e2 07 <42> 0f b6 04 38 38 d0 7f 08 84 c0 0f 85 23 01 00 00 48 89 d8 48 89
RSP: 0018:ffff8880a010f728 EFLAGS: 00010202
RAX: 0000000000000002 RBX: ffff8882167d2288 RCX: 0000000000000001
RDX: 0000000000000007 RSI: ffffffff87024171 RDI: 0000000000000017
RBP: ffff8880a010f760 R08: 1ffff11014021edb R09: ffffed1014021edc
R10: ffffed1014021edb R11: 0000000000000003 R12: ffff8882167d2280
R13: 0000000000000017 R14: 0000000000000000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004a1f3d CR3: 0000000009871000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rose_route_frame+0x2be/0x19d0 net/rose/rose_route.c:885
 rose_xmit+0x8a/0x170 net/rose/rose_dev.c:110
 __netdev_start_xmit include/linux/netdevice.h:4382 [inline]
 netdev_start_xmit include/linux/netdevice.h:4391 [inline]
 xmit_one net/core/dev.c:3278 [inline]
 dev_hard_start_xmit+0x261/0xc70 net/core/dev.c:3294
 __dev_queue_xmit+0x2f8a/0x3a60 net/core/dev.c:3864
 dev_queue_xmit+0x18/0x20 net/core/dev.c:3897
 tx+0x6f/0xc0 drivers/block/aoe/aoenet.c:63
 kthread+0x2a7/0x4b0 drivers/block/aoe/aoecmd.c:1239
 kthread+0x357/0x430 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Modules linked in:
---[ end trace 6b6d027b504c080a ]---
RIP: 0010:ax25cmp+0x3e/0x180 net/ax25/ax25_addr.c:122
Code: f6 41 55 49 89 fd 41 54 53 48 89 f3 48 83 ec 10 48 89 7d d0 48 89 75 c8 e8 df bf 7f fa 4c 89 e8 4c 89 ea 48 c1 e8 03 83 e2 07 <42> 0f b6 04 38 38 d0 7f 08 84 c0 0f 85 23 01 00 00 48 89 d8 48 89
RSP: 0018:ffff8880a010f728 EFLAGS: 00010202
RAX: 0000000000000002 RBX: ffff8882167d2288 RCX: 0000000000000001
RDX: 0000000000000007 RSI: ffffffff87024171 RDI: 0000000000000017
RBP: ffff8880a010f760 R08: 1ffff11014021edb R09: ffffed1014021edc
R10: ffffed1014021edb R11: 0000000000000003 R12: ffff8882167d2280
R13: 0000000000000017 R14: 0000000000000000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004a1f3d CR3: 0000000009871000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (2294):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/01/27 23:34 upstream 983542434e6b c73f090a .config console log report syz C ci-upstream-kasan-gce-selinux-root
2019/01/26 16:12 upstream ba6069759381 c73f090a .config console log report syz C ci-upstream-kasan-gce-smack-root
2019/01/26 13:11 upstream ba6069759381 c73f090a .config console log report syz C ci-upstream-kasan-gce-root
2019/01/18 00:26 upstream 7fbfee7c80de 769e75ed .config console log report syz C ci-upstream-kasan-gce-smack-root
2019/01/18 00:07 upstream 7fbfee7c80de 769e75ed .config console log report syz C ci-upstream-kasan-gce-root
2019/01/17 13:12 upstream 7fbfee7c80de c2faf9b2 .config console log report syz C ci-upstream-kasan-gce-selinux-root
2019/01/17 13:10 upstream 7fbfee7c80de c2faf9b2 .config console log report syz C ci-upstream-kasan-gce-root
2019/01/17 12:54 upstream 7fbfee7c80de c2faf9b2 .config console log report syz C ci-upstream-kasan-gce-smack-root
2019/01/10 15:38 upstream ba422731316d db9b6579 .config console log report syz C ci-upstream-kasan-gce-selinux-root
2019/01/10 15:37 upstream ba422731316d db9b6579 .config console log report syz C ci-upstream-kasan-gce-root
2019/01/10 02:51 upstream 4064e47c8281 45c0c1b1 .config console log report syz C ci-upstream-kasan-gce-selinux-root
2019/01/10 02:09 upstream 4064e47c8281 45c0c1b1 .config console log report syz C ci-upstream-kasan-gce-root
2019/01/10 01:55 upstream 4064e47c8281 45c0c1b1 .config console log report syz C ci-upstream-kasan-gce-smack-root
2018/12/26 07:13 upstream d8924c0d76aa 8a41a0ad .config console log report syz C ci-upstream-kasan-gce-root
2018/12/26 04:22 upstream d8924c0d76aa 8a41a0ad .config console log report syz C ci-upstream-kasan-gce-root
2018/12/25 05:06 upstream 8fe28cb58bcb 8a41a0ad .config console log report syz C ci-upstream-kasan-gce-selinux-root
2018/12/25 03:37 upstream 8fe28cb58bcb 8a41a0ad .config console log report syz C ci-upstream-kasan-gce-selinux-root
2018/12/25 01:17 upstream 8fe28cb58bcb 8a41a0ad .config console log report syz C ci-upstream-kasan-gce-smack-root
2018/12/25 00:00 upstream 8fe28cb58bcb 8a41a0ad .config console log report syz C ci-upstream-kasan-gce-smack-root
2019/01/26 13:32 net-old abfd04f738c2 c73f090a .config console log report syz C ci-upstream-net-this-kasan-gce
2019/01/18 04:19 net-old 88a8121dc1d3 5bf17c30 .config console log report syz C ci-upstream-net-this-kasan-gce
2019/01/17 12:32 net-old 0f149c9fec3c c2faf9b2 .config console log report syz C ci-upstream-net-this-kasan-gce
2019/01/10 13:05 net-old d972f3dce8d1 db9b6579 .config console log report syz C ci-upstream-net-this-kasan-gce
2019/01/09 23:47 net-old d972f3dce8d1 45c0c1b1 .config console log report syz C ci-upstream-net-this-kasan-gce
2018/12/24 22:54 net-old a3ac5817ffe8 8a41a0ad .config console log report syz C ci-upstream-net-this-kasan-gce
2018/12/24 21:41 net-old a3ac5817ffe8 8a41a0ad .config console log report syz C ci-upstream-net-this-kasan-gce
2019/01/26 12:52 net-next-old f859a4484703 c73f090a .config console log report syz C ci-upstream-net-kasan-gce
2019/01/17 23:09 net-next-old 44543f1dd2a3 769e75ed .config console log report syz C ci-upstream-net-kasan-gce
2019/01/17 12:14 net-next-old bdbe8cc1a30c c2faf9b2 .config console log report syz C ci-upstream-net-kasan-gce
2019/01/10 11:28 net-next-old b71acb0e3721 45c0c1b1 .config console log report syz C ci-upstream-net-kasan-gce
2018/12/24 23:31 net-next-old ce28bb445388 8a41a0ad .config console log report syz C ci-upstream-net-kasan-gce
2018/12/24 20:44 net-next-old ce28bb445388 8a41a0ad .config console log report syz C ci-upstream-net-kasan-gce
2019/01/26 13:12 linux-next 494367cb57c9 c73f090a .config console log report syz C ci-upstream-linux-next-kasan-gce-root
2019/01/18 00:26 linux-next a37d50ca3b83 769e75ed .config console log report syz C ci-upstream-linux-next-kasan-gce-root
2019/01/17 12:54 linux-next a37d50ca3b83 c2faf9b2 .config console log report syz C ci-upstream-linux-next-kasan-gce-root
2019/01/09 23:46 linux-next d6e77253170d 45c0c1b1 .config console log report syz C ci-upstream-linux-next-kasan-gce-root
2018/12/28 03:41 linux-next 6a1d293238c1 af317504 .config console log report syz C ci-upstream-linux-next-kasan-gce-root
2018/12/28 02:11 linux-next 6a1d293238c1 af317504 .config console log report syz C ci-upstream-linux-next-kasan-gce-root
2019/01/09 21:56 net-next-old b71acb0e3721 45c0c1b1 .config console log report syz ci-upstream-net-kasan-gce
2019/01/29 16:07 upstream 4aa9fc2a435a aa432daf .config console log report ci-upstream-kasan-gce-selinux-root
2018/12/24 19:01 net-old a3ac5817ffe8 8a41a0ad .config console log report ci-upstream-net-this-kasan-gce
2019/01/30 06:34 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/30 05:25 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/30 05:14 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/30 04:10 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/30 02:46 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/30 01:44 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/30 01:34 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/30 00:32 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/29 23:14 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/29 22:48 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/29 21:48 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/29 20:44 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/29 20:28 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/29 19:28 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/29 18:27 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/29 17:21 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/29 16:15 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/29 15:02 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/29 14:01 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/29 13:44 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/29 12:36 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/29 12:23 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/29 11:09 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/29 09:59 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/29 09:43 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/29 08:42 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/29 07:35 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/29 06:59 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/29 05:47 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/29 05:36 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/29 04:24 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/29 03:16 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/29 02:16 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/29 00:46 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/29 00:29 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/28 23:18 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/28 21:53 net-next-old 085c4c7dd2b6 aa432daf .config console log report ci-upstream-net-kasan-gce
2019/01/28 20:26 net-next-old 085c4c7dd2b6 629c2a27 .config console log report ci-upstream-net-kasan-gce
2019/01/28 19:00 net-next-old 085c4c7dd2b6 629c2a27 .config console log report ci-upstream-net-kasan-gce
2019/01/28 18:02 net-next-old 085c4c7dd2b6 629c2a27 .config console log report ci-upstream-net-kasan-gce
2019/01/28 17:02 net-next-old 085c4c7dd2b6 629c2a27 .config console log report ci-upstream-net-kasan-gce
2019/01/28 16:21 net-next-old 085c4c7dd2b6 629c2a27 .config console log report ci-upstream-net-kasan-gce
* Struck through repros no longer work on HEAD.