On Tue, Dec 26, 2017 at 02:20:01PM -0800, syzbot wrote: > 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@xxxxxxxxxxxxxxxxxxxxxxxxx> > 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.. > syzbot is no longer hitting this because the WARN() was removed by commit e46a3b3ba7509c: #syz fix: ANDROID: binder: remove WARN() for redundant txn error - Eric _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
