binder: 23244:23247 ioctl 8940 20d44fe8 returned -22
keychord: unsupported version 40
keychord: unsupported version 40
==================================================================
BUG: Double free or freeing an invalid pointer
Unexpected shadow byte: 0xFB
CPU: 1 PID: 23327 Comm: syz-executor5 Not tainted 4.9.40-g682c1e3 #12
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801cdf87b70 ffffffff81d8de49 ffff8801da001b40 ffff8801d0ad0b60
 ffff8801d0ad0b70 ffffffff82a6f158 0000000000000282 ffff8801cdf87b98
 ffffffff8153805c 00000000fffffffb ffff8801da001b40 ffff8801d0ad0b60
Call Trace:
 [<ffffffff81d8de49>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d8de49>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff8153805c>] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160
 [<ffffffff81538893>] kasan_report_double_free+0x53/0x80 mm/kasan/report.c:181
 [<ffffffff81537c4d>] kasan_slab_free+0x9d/0xc0 mm/kasan/kasan.c:562
 [<ffffffff815347d0>] slab_free_hook mm/slub.c:1355 [inline]
 [<ffffffff815347d0>] slab_free_freelist_hook mm/slub.c:1377 [inline]
 [<ffffffff815347d0>] slab_free mm/slub.c:2958 [inline]
 [<ffffffff815347d0>] kfree+0xf0/0x2f0 mm/slub.c:3878
 [<ffffffff82a6f158>] keychord_write+0x628/0x820 drivers/input/misc/keychord.c:319
 [<ffffffff81565fc3>] __vfs_write+0x103/0x680 fs/read_write.c:510
 [<ffffffff8156a0f0>] vfs_write+0x170/0x4e0 fs/read_write.c:560
 [<ffffffff8156dae9>] SYSC_write fs/read_write.c:607 [inline]
 [<ffffffff8156dae9>] SyS_write+0xd9/0x1b0 fs/read_write.c:599
 [<ffffffff838a16c5>] entry_SYSCALL_64_fastpath+0x23/0xc6
Object at ffff8801d0ad0b60, in cache kmalloc-16 size: 16
Allocated:
PID = 23327
 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57
 save_stack+0x43/0xd0 mm/kasan/kasan.c:495
 set_track mm/kasan/kasan.c:507 [inline]
 kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598
 __kmalloc+0x11d/0x310 mm/slub.c:3741
 kmalloc include/linux/slab.h:495 [inline]
 kzalloc include/linux/slab.h:636 [inline]
 keychord_write+0x6d/0x820 drivers/input/misc/keychord.c:243
 __vfs_write+0x103/0x680 fs/read_write.c:510
 vfs_write+0x170/0x4e0 fs/read_write.c:560
 SYSC_write fs/read_write.c:607 [inline]
 SyS_write+0xd9/0x1b0 fs/read_write.c:599
 entry_SYSCALL_64_fastpath+0x23/0xc6
Freed:
PID = 23314
 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57
 save_stack+0x43/0xd0 mm/kasan/kasan.c:495
 set_track mm/kasan/kasan.c:507 [inline]
 kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:571
 slab_free_hook mm/slub.c:1355 [inline]
 slab_free_freelist_hook mm/slub.c:1377 [inline]
 slab_free mm/slub.c:2958 [inline]
 kfree+0xf0/0x2f0 mm/slub.c:3878
 keychord_write+0x15d/0x820 drivers/input/misc/keychord.c:261
 __vfs_write+0x103/0x680 fs/read_write.c:510
 vfs_write+0x170/0x4e0 fs/read_write.c:560
 SYSC_write fs/read_write.c:607 [inline]
 SyS_write+0xd9/0x1b0 fs/read_write.c:599
 entry_SYSCALL_64_fastpath+0x23/0xc6
==================================================================
device lo left promiscuous mode
nla_parse: 14 callbacks suppressed
netlink: 3 bytes leftover after parsing attributes in process `syz-executor6'.
netlink: 3 bytes leftover after parsing attributes in process `syz-executor6'.
netlink: 14 bytes leftover after parsing attributes in process `syz-executor4'.
netlink: 14 bytes leftover after parsing attributes in process `syz-executor4'.
netlink: 14 bytes leftover after parsing attributes in process `syz-executor4'.
netlink: 14 bytes leftover after parsing attributes in process `syz-executor4'.
netlink: 14 bytes leftover after parsing attributes in process `syz-executor4'.
Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable