linux-kernel - WARNING in binder_send_failed

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Message-ID: <001a113f75c20d3510056145af9a@google.com>
Date:   Tue, 26 Dec 2017 14:20:01 -0800
From:   syzbot 
        <syzbot+a4a91202715b834181f106c1ad79f2f6fc35e102@...kaller.appspotmail.com>
To:     arve@...roid.com, devel@...verdev.osuosl.org, dvyukov@...gle.com,
        gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
        maco@...roid.com, riandrews@...roid.com,
        syzkaller-bugs@...glegroups.com, tkjos@...roid.com
Subject: WARNING in binder_send_failed_reply

syzkaller has found reproducer for the following crash on  
0e08c463db387a2adcb0243b15ab868a73f87807
git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/master
compiler: gcc (GCC) 7.1.1 20170620
.config is attached
Raw console output is attached.
C reproducer is attached
syzkaller reproducer is attached. See https://goo.gl/kgGztJ
for information about syzkaller reproducers


IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by:  
<syzbot+a4a91202715b834181f106c1ad79f2f6fc35e102@...kaller.appspotmail.com>
It will help syzbot understand when the bug is fixed.

binder: undelivered TRANSACTION_COMPLETE
binder: undelivered TRANSACTION_ERROR: 29189
binder: send failed reply for transaction 844 to 4059:4061
------------[ cut here ]------------
Unexpected reply error: 29189
WARNING: CPU: 0 PID: 1409 at drivers/android/binder.c:1998  
binder_send_failed_reply+0x13b/0x390 drivers/android/binder.c:1997
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 1409 Comm: kworker/0:2 Not tainted 4.15.0-rc4-next-20171221+ #78
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS  
Google 01/01/2011
Workqueue: events binder_deferred_func
Call Trace:
  __dump_stack lib/dump_stack.c:17 [inline]
  dump_stack+0x194/0x257 lib/dump_stack.c:53
  panic+0x1e4/0x41c kernel/panic.c:183
  __warn+0x1dc/0x200 kernel/panic.c:547
  report_bug+0x211/0x2d0 lib/bug.c:184
  fixup_bug.part.11+0x37/0x80 arch/x86/kernel/traps.c:177
  fixup_bug arch/x86/kernel/traps.c:246 [inline]
  do_error_trap+0x2d7/0x3e0 arch/x86/kernel/traps.c:295
  do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314
  invalid_op+0x22/0x40 arch/x86/entry/entry_64.S:1079
RIP: 0010:binder_send_failed_reply+0x13b/0x390 drivers/android/binder.c:1997
RSP: 0018:ffff8801d3887128 EFLAGS: 00010286
RAX: dffffc0000000008 RBX: ffff8801c2fbce00 RCX: ffffffff8159f9ce
RDX: 0000000000000000 RSI: 1ffff1003a70c91d RDI: 0000000000000293
RBP: ffff8801d3887150 R08: 1ffff1003a710db8 R09: 0000000000000000
R10: ffff8801d3886fa0 R11: 0000000000000000 R12: ffff8801bf73a840
R13: 0000000000007205 R14: 0000000000007205 R15: 0000000000000fdb
  binder_cleanup_transaction+0xd2/0x140 drivers/android/binder.c:2035
  binder_release_work+0x340/0x490 drivers/android/binder.c:4198
  binder_deferred_release drivers/android/binder.c:4951 [inline]
  binder_deferred_func+0xe42/0x1340 drivers/android/binder.c:4996
  process_one_work+0xbbf/0x1af0 kernel/workqueue.c:2112
  worker_thread+0x223/0x1990 kernel/workqueue.c:2246
  kthread+0x33c/0x400 kernel/kthread.c:238
  ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:524
Dumping ftrace buffer:
    (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..


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