binder: 5337:5339 BC_ACQUIRE_DONE node 8 has no pending acquire request
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BUG: KASAN: global-out-of-bounds in show_timer+0x278/0x2b0 fs/proc/base.c:2303
Read of size 8 at addr ffffffff85742fb8 by task syz-executor6/5346
binder_alloc: binder_alloc_mmap_handler: 5337 20000000-20002000 already mapped failed -16
binder: BINDER_SET_CONTEXT_MGR already set
binder: 5337:5349 ioctl 40046207 0 returned -16
binder: 5337:5339 got new transaction with bad transaction stack, transaction 9 has target 5337:0
binder: 5337:5339 transaction failed 29201/-71, size 80-16 line 2859
binder: 5337:5349 BC_ACQUIRE_DONE node 8 has no pending acquire request
netlink: 8 bytes leftover after parsing attributes in process `syz-executor1'.

CPU: 0 PID: 5346 Comm: syz-executor6 Not tainted 4.15.0-rc2-mm1+ #39
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x194/0x257 lib/dump_stack.c:53
 print_address_description+0x178/0x250 mm/kasan/report.c:252
 kasan_report_error mm/kasan/report.c:351 [inline]
 kasan_report+0x25b/0x340 mm/kasan/report.c:409
 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:430
binder: release 5337:5339 transaction 9 out, still active
binder: unexpected work type, 4, not freed
binder: unexpected work type, 4, not freed
binder: undelivered TRANSACTION_COMPLETE
binder: undelivered TRANSACTION_ERROR: 29201
binder: send failed reply for transaction 9, target dead
 show_timer+0x278/0x2b0 fs/proc/base.c:2303
 seq_read+0x385/0x13d0 fs/seq_file.c:234
 __vfs_read+0xef/0xa00 fs/read_write.c:411
 vfs_read+0x124/0x360 fs/read_write.c:447
 SYSC_pread64 fs/read_write.c:611 [inline]
 SyS_pread64+0x161/0x190 fs/read_write.c:598
 entry_SYSCALL_64_fastpath+0x1f/0x96
RIP: 0033:0x452a39
RSP: 002b:00007f15b07e6c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000011
RAX: ffffffffffffffda RBX: 00007f15b07e6950 RCX: 0000000000452a39
RDX: 0000000000001000 RSI: 0000000020f8d000 RDI: 0000000000000016
RBP: 00007f15b07e6940 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000004b73a6
R13: 00007f15b07e6ac8 R14: 00000000004b73b1 R15: 0000000000000000

The buggy address belongs to the variable:
 nstr.44378+0x18/0x40

Memory state around the buggy address:
 ffffffff85742e80: fa fa fa fa 00 06 fa fa fa fa fa fa 07 fa fa fa
 ffffffff85742f00: fa fa fa fa 05 fa fa fa fa fa fa fa 07 fa fa fa
>ffffffff85742f80: fa fa fa fa 00 00 00 fa fa fa fa fa 00 fa fa fa
                                        ^
 ffffffff85743000: fa fa fa fa 00 00 00 00 00 00 00 00 00 00 00 00
 ffffffff85743080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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