binder: release 11910:11911 transaction 111 in, still active binder: send failed reply for transaction 111 to 11910:11920 binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_ERROR: 29189 ================================================================== BUG: KASAN: slab-out-of-bounds in __lock_acquire+0x2eff/0x3640 kernel/locking/lockdep.c:3224 Read of size 8 at addr ffff8801d68a02f8 by task syz-executor5/11944 CPU: 0 PID: 11944 Comm: syz-executor5 Not tainted 4.9.76-g8dec074 #13 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c890f740 ffffffff81d93169 ffffea00075a2800 ffff8801d68a02f8 0000000000000000 ffff8801d68a02f8 ffff8801d68a02f8 ffff8801c890f778 ffffffff8153cb43 ffff8801d68a02f8 0000000000000008 0000000000000000 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] print_address_description+0x73/0x280 mm/kasan/report.c:252 [] kasan_report_error mm/kasan/report.c:351 [inline] [] kasan_report+0x275/0x360 mm/kasan/report.c:408 [] __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:429 [] __lock_acquire+0x2eff/0x3640 kernel/locking/lockdep.c:3224 [] lock_acquire+0x12e/0x410 kernel/locking/lockdep.c:3756 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:186 [inline] [] _raw_write_lock_irqsave+0x4e/0x62 kernel/locking/spinlock.c:303 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 [] vfs_readv+0x84/0xc0 fs/read_write.c:898 [] do_readv+0xe6/0x250 fs/read_write.c:924 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 [] entry_SYSCALL_64_fastpath+0x23/0xe2 Allocated by task 11944: save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 save_stack+0x43/0xd0 mm/kasan/kasan.c:505 set_track mm/kasan/kasan.c:517 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:609 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:547 slab_post_alloc_hook mm/slab.h:417 [inline] slab_alloc_node mm/slub.c:2715 [inline] slab_alloc mm/slub.c:2723 [inline] kmem_cache_alloc+0xba/0x290 mm/slub.c:2728 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 setfl fs/fcntl.c:70 [inline] do_fcntl fs/fcntl.c:267 [inline] SYSC_fcntl fs/fcntl.c:372 [inline] SyS_fcntl+0x658/0xc70 fs/fcntl.c:357 entry_SYSCALL_64_fastpath+0x23/0xe2 Freed by task 6775: save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 save_stack+0x43/0xd0 mm/kasan/kasan.c:505 set_track mm/kasan/kasan.c:517 [inline] kasan_slab_free+0x72/0xc0 mm/kasan/kasan.c:582 slab_free_hook mm/slub.c:1355 [inline] slab_free_freelist_hook mm/slub.c:1377 [inline] slab_free mm/slub.c:2958 [inline] kmem_cache_free+0xc7/0x300 mm/slub.c:2980 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 __rcu_reclaim kernel/rcu/rcu.h:118 [inline] rcu_do_batch kernel/rcu/tree.c:2789 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline] rcu_process_callbacks+0x898/0x1300 kernel/rcu/tree.c:3037 __do_softirq+0x206/0x951 kernel/softirq.c:284 The buggy address belongs to the object at ffff8801d68a0280 which belongs to the cache fasync_cache of size 96 The buggy address is located 24 bytes to the right of 96-byte region [ffff8801d68a0280, ffff8801d68a02e0) The buggy address belongs to the page: page:ffffea00075a2800 count:1 mapcount:0 mapping: (null) index:0xffff8801d68a0480 flags: 0x8000000000000080(slab) page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8801d68a0180: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801d68a0200: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff8801d68a0280: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ^ ffff8801d68a0300: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801d68a0380: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ==================================================================