On Thu, Aug 2, 2018 at 10:14 AM syzbot <syzbot+05b2210c521c829a2...@syzkaller.appspotmail.com> wrote: > > Hello, > > syzbot found the following crash on: > > HEAD commit: fea49f60c9b7 net: ethernet: ti: cpsw: replace unnecessaril.. > git tree: net-next > console output: https://syzkaller.appspot.com/x/log.txt?x=16d5fae8400000 > kernel config: https://syzkaller.appspot.com/x/.config?x=d6a9eba95cc5dd8e > dashboard link: https://syzkaller.appspot.com/bug?extid=05b2210c521c829a20f5 > compiler: gcc (GCC) 8.0.1 20180413 (experimental) > syzkaller repro:https://syzkaller.appspot.com/x/repro.syz?x=108ef064400000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1022672c400000 > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > Reported-by: syzbot+05b2210c521c829a2...@syzkaller.appspotmail.com
We will probably lose a bunch of other bad bugs here (udp stack overflow was introduced later than this report), but since nobody looks at this anyways, for the purpose of keeping dashboard useful: #syz dup: kernel panic: stack is corrupted in udp4_lib_lookup2 > RBP: 00007ffdbb414a40 R08: 0000000020000000 R09: 000000000000001c > R10: 0000000000000040 R11: 0000000000000216 R12: 0000000000000004 > R13: ffffffffffffffff R14: 0000000000000000 R15: 0000000000000000 > kasan: CONFIG_KASAN_INLINE enabled > kasan: GPF could be caused by NULL-ptr deref or user memory access > Kernel panic - not syncing: corrupted stack end detected inside scheduler > > general protection fault: 0000 [#1] SMP KASAN > CPU: 0 PID: 6188 Comm: syz-executor748 Not tainted 4.18.0-rc6+ #165 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS > Google 01/01/2011 > RIP: 0010:__read_once_size include/linux/compiler.h:188 [inline] > RIP: 0010:compound_head include/linux/page-flags.h:142 [inline] > RIP: 0010:put_page include/linux/mm.h:913 [inline] > RIP: 0010:tls_push_sg+0x2a3/0x880 net/tls/tls_main.c:133 > Code: fb 4d 39 e5 75 a2 e8 4c 5f d6 fb 48 8b 85 08 ff ff ff 49 8d 7f 08 48 > b9 00 00 00 00 00 fc ff df c6 00 00 48 89 f8 48 c1 e8 03 <80> 3c 08 00 0f > 85 50 05 00 00 48 8b 85 08 ff ff ff 49 8b 5f 08 80 > RSP: 0018:ffff8801c9f1f7b8 EFLAGS: 00010202 > RAX: 0000000000000001 RBX: 0000000000000000 RCX: dffffc0000000000 > RDX: 0000000000000000 RSI: ffffffff85a5b634 RDI: 0000000000000008 > RBP: ffff8801c9f1f8d8 R08: ffff8801c7d88340 R09: 0000000000000000 > R10: fffff94000e38bc6 R11: ffffea00071c5e37 R12: 0000000000000000 > R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 > FS: 000000000119b880(0000) GS:ffff8801db000000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > CR2: 00007f8c0bf4a000 CR3: 00000001c777e000 CR4: 00000000001406f0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 > Call Trace: > tls_push_record+0xaf3/0x1400 net/tls/tls_sw.c:247 > tls_sw_push_pending_record+0x22/0x30 net/tls/tls_sw.c:259 > tls_handle_open_record net/tls/tls_main.c:155 [inline] > tls_sk_proto_close+0x759/0xb90 net/tls/tls_main.c:255 > inet_release+0x104/0x1f0 net/ipv4/af_inet.c:428 > inet6_release+0x50/0x70 net/ipv6/af_inet6.c:459 > __sock_release+0xd7/0x250 net/socket.c:597 > sock_close+0x19/0x20 net/socket.c:1157 > __fput+0x355/0x8b0 fs/file_table.c:209 > ____fput+0x15/0x20 fs/file_table.c:243 > task_work_run+0x1ec/0x2a0 kernel/task_work.c:113 > tracehook_notify_resume include/linux/tracehook.h:192 [inline] > exit_to_usermode_loop+0x313/0x370 arch/x86/entry/common.c:166 > prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] > syscall_return_slowpath arch/x86/entry/common.c:268 [inline] > do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293 > entry_SYSCALL_64_after_hwframe+0x49/0xbe > RIP: 0033:0x4017f0 > Code: 01 f0 ff ff 0f 83 d0 0a 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f > 44 00 00 83 3d 3d 30 2d 00 00 75 14 b8 03 00 00 00 0f 05 <48> 3d 01 f0 ff > ff 0f 83 a4 0a 00 00 c3 48 83 ec 08 e8 5a 01 00 00 > RSP: 002b:00007ffdbb414a28 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 > RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00000000004017f0 > RDX: 00000000fffffdef RSI: 00000000200005c0 RDI: 0000000000000003 > RBP: 00007ffdbb414a40 R08: 0000000020000000 R09: 000000000000001c > R10: 0000000000000040 R11: 0000000000000246 R12: 0000000000000004 > R13: ffffffffffffffff R14: 0000000000000000 R15: 0000000000000000 > Modules linked in: > Dumping ftrace buffer: > (ftrace buffer empty) > Dumping ftrace buffer: > (ftrace buffer empty) > Kernel Offset: disabled > Rebooting in 86400 seconds.. > > > --- > This bug is generated by a bot. It may contain errors. > See https://goo.gl/tpsmEJ for more information about syzbot. > syzbot engineers can be reached at syzkal...@googlegroups.com. > > syzbot will keep track of this bug report. See: > https://goo.gl/tpsmEJ#bug-status-tracking for how to communicate with > syzbot. > syzbot can test patches for this bug, for details see: > https://goo.gl/tpsmEJ#testing-patches > > -- > You received this message because you are subscribed to the Google Groups > "syzkaller-bugs" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to syzkaller-bugs+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/syzkaller-bugs/000000000000db041505726f64d5%40google.com. > For more options, visit https://groups.google.com/d/optout.
