syzbot


general protection fault in tcp_sendmsg_locked

Status: auto-closed as invalid on 2019/12/20 16:36
Reported-by: syzbot+5c1207be8cae83ffc24c@syzkaller.appspotmail.com
First crash: 1746d, last: 1735d
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 general protection fault in tcp_sendmsg_locked 1767 1735d 1746d 0/1 auto-closed as invalid on 2019/12/20 05:10

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 NOPTI
Modules linked in:
CPU: 1 PID: 9087 Comm: syz-executor.2 Not tainted 4.14.145+ #0
task: 0000000070fdf968 task.stack: 00000000f226adad
RIP: 0010:tcp_sendmsg_locked+0x509/0x2f50 net/ipv4/tcp.c:1281
RSP: 0018:ffff8881cd817930 EFLAGS: 00010206
RAX: 0000000000000011 RBX: ffff8881c7987400 RCX: 0000000000000154
RDX: ffffffff8252ea80 RSI: ffffc90009c25000 RDI: 0000000000000088
RBP: ffff8881d4ce6312 R08: 0000000000000001 R09: 0000000000000001
R10: fffffbfff1405b9d R11: 0000000000000000 R12: ffff8881cd817e18
R13: 0000000000000000 R14: ffff8881d4ce6300 R15: dffffc0000000000
FS:  00007f4c837c7700(0000) GS:ffff8881dbb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000046f020 CR3: 00000001d3bcc003 CR4: 00000000001606a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 tcp_sendmsg+0x2b/0x40 net/ipv4/tcp.c:1457
 inet_sendmsg+0x15b/0x520 net/ipv4/af_inet.c:760
 sock_sendmsg_nosec net/socket.c:646 [inline]
 sock_sendmsg+0xb7/0x100 net/socket.c:656
 ___sys_sendmsg+0x752/0x890 net/socket.c:2062
 __sys_sendmsg+0xb6/0x150 net/socket.c:2096
 SYSC_sendmsg net/socket.c:2107 [inline]
 SyS_sendmsg+0x27/0x40 net/socket.c:2103
 do_syscall_64+0x19b/0x520 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x459a09
RSP: 002b:00007f4c837c6c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459a09
RDX: 000000000004c080 RSI: 0000000020000240 RDI: 0000000000000004
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4c837c76d4
R13: 00000000004c77fd R14: 00000000004dd160 R15: 00000000ffffffff
Code: ee 2b de fe 48 85 db 0f 84 12 08 00 00 e8 e0 2b de fe 8b 84 24 08 01 00 00 49 8d bd 88 00 00 00 89 44 24 08 48 89 f8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 74 06 0f 8e 07 24 00 00 41 f6 85 88 00 00 
RIP: tcp_sendmsg_locked+0x509/0x2f50 net/ipv4/tcp.c:1281 RSP: ffff8881cd817930
---[ end trace 7aab939717aef30e ]---

Crashes (1672):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/09/21 16:35 android-4.14 a9e9acce73d4 d96e88f3 .config console log report ci-android-414-kasan-gce-root
2019/09/21 15:01 android-4.14 a9e9acce73d4 d96e88f3 .config console log report ci-android-414-kasan-gce-root
2019/09/21 13:38 android-4.14 a9e9acce73d4 d96e88f3 .config console log report ci-android-414-kasan-gce-root
2019/09/21 12:43 android-4.14 a9e9acce73d4 d96e88f3 .config console log report ci-android-414-kasan-gce-root
2019/09/21 09:42 android-4.14 a9e9acce73d4 d96e88f3 .config console log report ci-android-414-kasan-gce-root
2019/09/21 07:30 android-4.14 a9e9acce73d4 d96e88f3 .config console log report ci-android-414-kasan-gce-root
2019/09/21 06:53 android-4.14 a9e9acce73d4 d96e88f3 .config console log report ci-android-414-kasan-gce-root
2019/09/21 05:09 android-4.14 a9e9acce73d4 d96e88f3 .config console log report ci-android-414-kasan-gce-root
2019/09/21 03:00 android-4.14 61a760424681 d96e88f3 .config console log report ci-android-414-kasan-gce-root
2019/09/21 02:12 android-4.14 61a760424681 d96e88f3 .config console log report ci-android-414-kasan-gce-root
2019/09/21 01:31 android-4.14 61a760424681 d96e88f3 .config console log report ci-android-414-kasan-gce-root
2019/09/21 00:21 android-4.14 61a760424681 d96e88f3 .config console log report ci-android-414-kasan-gce-root
2019/09/20 23:03 android-4.14 61a760424681 d96e88f3 .config console log report ci-android-414-kasan-gce-root
2019/09/20 23:02 android-4.14 61a760424681 d96e88f3 .config console log report ci-android-414-kasan-gce-root
2019/09/20 21:50 android-4.14 61a760424681 d96e88f3 .config console log report ci-android-414-kasan-gce-root
2019/09/20 20:35 android-4.14 61a760424681 d96e88f3 .config console log report ci-android-414-kasan-gce-root
2019/09/20 20:21 android-4.14 61a760424681 d96e88f3 .config console log report ci-android-414-kasan-gce-root
2019/09/20 19:05 android-4.14 61a760424681 d96e88f3 .config console log report ci-android-414-kasan-gce-root
2019/09/20 18:31 android-4.14 61a760424681 d96e88f3 .config console log report ci-android-414-kasan-gce-root
2019/09/20 16:53 android-4.14 61a760424681 d96e88f3 .config console log report ci-android-414-kasan-gce-root
2019/09/20 16:43 android-4.14 61a760424681 d96e88f3 .config console log report ci-android-414-kasan-gce-root
2019/09/20 14:28 android-4.14 290dd9dfcbe8 d96e88f3 .config console log report ci-android-414-kasan-gce-root
2019/09/20 13:26 android-4.14 290dd9dfcbe8 d96e88f3 .config console log report ci-android-414-kasan-gce-root
2019/09/20 12:26 android-4.14 290dd9dfcbe8 d96e88f3 .config console log report ci-android-414-kasan-gce-root
2019/09/20 11:20 android-4.14 290dd9dfcbe8 d96e88f3 .config console log report ci-android-414-kasan-gce-root
2019/09/20 09:49 android-4.14 290dd9dfcbe8 4d3ae0b7 .config console log report ci-android-414-kasan-gce-root
2019/09/20 08:46 android-4.14 290dd9dfcbe8 4d3ae0b7 .config console log report ci-android-414-kasan-gce-root
2019/09/20 07:54 android-4.14 290dd9dfcbe8 4d3ae0b7 .config console log report ci-android-414-kasan-gce-root
2019/09/20 06:53 android-4.14 290dd9dfcbe8 4d3ae0b7 .config console log report ci-android-414-kasan-gce-root
2019/09/20 06:34 android-4.14 290dd9dfcbe8 4d3ae0b7 .config console log report ci-android-414-kasan-gce-root
2019/09/20 05:32 android-4.14 290dd9dfcbe8 4d3ae0b7 .config console log report ci-android-414-kasan-gce-root
2019/09/20 04:31 android-4.14 290dd9dfcbe8 4d3ae0b7 .config console log report ci-android-414-kasan-gce-root
2019/09/20 03:24 android-4.14 290dd9dfcbe8 4d3ae0b7 .config console log report ci-android-414-kasan-gce-root
2019/09/20 02:28 android-4.14 290dd9dfcbe8 4d3ae0b7 .config console log report ci-android-414-kasan-gce-root
2019/09/20 01:17 android-4.14 290dd9dfcbe8 4d3ae0b7 .config console log report ci-android-414-kasan-gce-root
2019/09/19 23:51 android-4.14 290dd9dfcbe8 4d3ae0b7 .config console log report ci-android-414-kasan-gce-root
2019/09/19 22:50 android-4.14 290dd9dfcbe8 4d3ae0b7 .config console log report ci-android-414-kasan-gce-root
2019/09/19 21:09 android-4.14 290dd9dfcbe8 eb940044 .config console log report ci-android-414-kasan-gce-root
2019/09/19 20:49 android-4.14 290dd9dfcbe8 eb940044 .config console log report ci-android-414-kasan-gce-root
2019/09/19 19:43 android-4.14 290dd9dfcbe8 eb940044 .config console log report ci-android-414-kasan-gce-root
2019/09/19 17:45 android-4.14 290dd9dfcbe8 eb940044 .config console log report ci-android-414-kasan-gce-root
2019/09/19 17:18 android-4.14 290dd9dfcbe8 eb940044 .config console log report ci-android-414-kasan-gce-root
2019/09/19 16:12 android-4.14 290dd9dfcbe8 eb940044 .config console log report ci-android-414-kasan-gce-root
2019/09/10 11:33 android-4.14 f02af7b02c26 a60cb4cd .config console log report ci-android-414-kasan-gce-root
* Struck through repros no longer work on HEAD.