binder: 31653:31695 BC_ACQUIRE_DONE u0000000000000000 no match binder: 31653:31659 ioctl 40046207 0 returned -16 binder: 31653:31690 ioctl 8903 20000100 returned -22 hid-generic 0006:00B6:0004.000A: item 0 2 1 12 parsing failed ================================================================== BUG: KASAN: use-after-free in ip6_dst_idev include/net/ip6_fib.h:141 [inline] BUG: KASAN: use-after-free in ip6_xmit+0x177c/0x1a00 net/ipv6/ip6_output.c:237 Read of size 8 at addr ffff8801c85fc8d8 by task syz-executor3/31698 CPU: 1 PID: 31698 Comm: syz-executor3 Not tainted 4.4.150-g5541782 #19 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 0000000000000000 75afe4f037fe7beb ffff8801b4177548 ffffffff81e14e2d ffffea0007217f00 ffff8801c85fc8d8 0000000000000000 ffff8801c85fc8d8 0000000000001200 ffff8801b4177580 ffffffff8151a3f0 ffff8801c85fc8d8 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x124 lib/dump_stack.c:51 [] print_address_description+0x6c/0x216 mm/kasan/report.c:252 hid-generic: probe of 0006:00B6:0004.000A failed with error -22 [] kasan_report_error mm/kasan/report.c:351 [inline] [] kasan_report.cold.7+0x175/0x2f7 mm/kasan/report.c:408 [] __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:429 [] ip6_dst_idev include/net/ip6_fib.h:141 [inline] [] ip6_xmit+0x177c/0x1a00 net/ipv6/ip6_output.c:237 [] inet6_csk_xmit+0x245/0x490 net/ipv6/inet6_connection_sock.c:176 [] l2tp_xmit_core net/l2tp/l2tp_core.c:1084 [inline] [] l2tp_xmit_skb+0xbeb/0xeb0 net/l2tp/l2tp_core.c:1179 [] pppol2tp_sendmsg+0x4e0/0x7d0 net/l2tp/l2tp_ppp.c:355 [] sock_sendmsg_nosec net/socket.c:626 [inline] [] sock_sendmsg+0xcc/0x110 net/socket.c:636 [] ___sys_sendmsg+0x441/0x880 net/socket.c:1963 [] __sys_sendmmsg+0x1d4/0x2e0 net/socket.c:2041 [] C_SYSC_sendmmsg net/compat.c:728 [inline] [] compat_SyS_sendmmsg+0x32/0x40 net/compat.c:725 [] do_syscall_32_irqs_on arch/x86/entry/common.c:393 [inline] [] do_fast_syscall_32+0x324/0x8b0 arch/x86/entry/common.c:460 [] sysenter_flags_fixed+0xd/0x1a Allocated by task 31057: [] save_stack_trace+0x26/0x50 arch/x86/kernel/stacktrace.c:63 [] save_stack+0x43/0xd0 mm/kasan/kasan.c:512 [] set_track mm/kasan/kasan.c:524 [inline] [] kasan_kmalloc+0xc7/0xe0 mm/kasan/kasan.c:616 [] kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:554 [] slab_post_alloc_hook mm/slub.c:1349 [inline] [] slab_alloc_node mm/slub.c:2615 [inline] [] slab_alloc mm/slub.c:2623 [inline] [] kmem_cache_alloc+0xbe/0x2a0 mm/slub.c:2628 [] dst_alloc+0xb5/0x1a0 net/core/dst.c:210 [] rt_dst_alloc+0x78/0x430 net/ipv4/route.c:1478 [] __mkroute_output net/ipv4/route.c:2132 [inline] [] __ip_route_output_key_hash+0x9ac/0x2380 net/ipv4/route.c:2344 [] __ip_route_output_key include/net/route.h:124 [inline] [] ip_route_output_flow+0x29/0xa0 net/ipv4/route.c:2431 [] udp_sendmsg+0x1480/0x1c70 net/ipv4/udp.c:1040 [] udpv6_sendmsg+0x12cd/0x24c0 net/ipv6/udp.c:1173 [] inet_sendmsg+0x203/0x4d0 net/ipv4/af_inet.c:755 [] sock_sendmsg_nosec net/socket.c:626 [inline] [] sock_sendmsg+0xcc/0x110 net/socket.c:636 [] ___sys_sendmsg+0x441/0x880 net/socket.c:1963 [] __sys_sendmmsg+0x1d4/0x2e0 net/socket.c:2041 [] C_SYSC_sendmmsg net/compat.c:728 [inline] [] compat_SyS_sendmmsg+0x32/0x40 net/compat.c:725 [] do_syscall_32_irqs_on arch/x86/entry/common.c:393 [inline] [] do_fast_syscall_32+0x324/0x8b0 arch/x86/entry/common.c:460 [] sysenter_flags_fixed+0xd/0x1a Freed by task 14: [] save_stack_trace+0x26/0x50 arch/x86/kernel/stacktrace.c:63 [] save_stack+0x43/0xd0 mm/kasan/kasan.c:512 [] set_track mm/kasan/kasan.c:524 [inline] [] kasan_slab_free+0x72/0xc0 mm/kasan/kasan.c:589 [] slab_free_hook mm/slub.c:1383 [inline] [] slab_free_freelist_hook mm/slub.c:1405 [inline] [] slab_free mm/slub.c:2859 [inline] [] kmem_cache_free+0xbe/0x340 mm/slub.c:2881 [] dst_destroy.part.6+0x1f5/0x330 net/core/dst.c:270 [] dst_destroy net/core/dst.c:252 [inline] [] dst_destroy_rcu+0x15/0x40 net/core/dst.c:295 [] __rcu_reclaim kernel/rcu/rcu.h:118 [inline] [] rcu_do_batch kernel/rcu/tree.c:2705 [inline] [] invoke_rcu_callbacks kernel/rcu/tree.c:2973 [inline] [] __rcu_process_callbacks kernel/rcu/tree.c:2940 [inline] [] rcu_process_callbacks+0x927/0x1440 kernel/rcu/tree.c:2957 [] __do_softirq+0x22c/0xa1a kernel/softirq.c:273 The buggy address belongs to the object at ffff8801c85fc8c0 which belongs to the cache ip_dst_cache of size 208 The buggy address is located 24 bytes inside of 208-byte region [ffff8801c85fc8c0, ffff8801c85fc990) The buggy address belongs to the page: PANIC: double fault, error_code: 0x0 CPU: 1 PID: 31698 Comm: syz-executor3 Not tainted 4.4.150-g5541782 #19 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8801cdb08000 task.stack: ffff8801b4170000 RIP: 0010:[] [] dump_page_badflags+0x1a/0x70 mm/debug.c:84 RSP: 0018:ffff8800fffffff8 EFLAGS: 00010092 RAX: 0000000000040000 RBX: ffffea0007217f00 RCX: ffffc90000e6d000 RDX: 0000000000000000 RSI: ffffffff83aaae60 RDI: ffffea0007217f00 RBP: ffff880100000028 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: ffffffff858f0274 R12: 0000000000000000 R13: ffffffff83aaae60 R14: ffff8801c85fc8c0 R15: ffff8801c85fc990 FS: 0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:00000000f5776b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: ffff8800ffffffe8 CR3: 00000001c8384000 CR4: 00000000001606f0 Stack: BUG: unable to handle kernel paging request at ffff8800fffffff8 IP: [] show_stack_log_lvl.cold.1+0x73/0x12e arch/x86/kernel/dumpstack_64.c:287 PGD 6330067 PUD 0 Thread overran stack, or stack corrupted Oops: 0000 [#1] PREEMPT SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 1 PID: 31698 Comm: syz-executor3 Not tainted 4.4.150-g5541782 #19 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8801cdb08000 task.stack: ffff8801b4170000 RIP: 0010:[] [] show_stack_log_lvl.cold.1+0x73/0x12e arch/x86/kernel/dumpstack_64.c:287 RSP: 0018:ffff8801db30ce68 EFLAGS: 00010046 RAX: ffff880100000000 RBX: 0000000000000000 RCX: ffff8801db307fc0 RDX: ffff8800fffffff8 RSI: ffffffff81e7499b RDI: ffffffff83c15480 RBP: ffff8801db30cec0 R08: ffff8801db2fffc0 R09: 0000000000000000 R10: 0000000000000001 R11: ffffffff858f0254 R12: ffffffff841dc894 R13: ffff8801db30cf58 R14: 0000000000000000 R15: ffffffff841dc882 FS: 0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:00000000f5776b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: ffff8800fffffff8 CR3: 00000001c8384000 CR4: 00000000001606f0 Stack: ffffffff841dc894 ffff8801cdb08000 75afe4f037fe7beb 0000000000000001 ffff880100000000 ffff8800fffffff8 ffff8801db30cf58 ffff8800fffffff8 0000000000000040 ffff8800fffffff8 ffff8801c85fc990 ffff8801db30cf00 Call Trace: <#DF> [] show_regs.cold.2+0xa0/0x124 arch/x86/kernel/dumpstack_64.c:320 [] df_debug+0x1c/0x2d arch/x86/kernel/doublefault.c:80 [] do_double_fault+0x113/0x230 arch/x86/kernel/traps.c:351 [] double_fault+0x2d/0x40 arch/x86/entry/entry_64.S:886 <> Code: b3 90 2f 00 48 8b 55 c8 48 8b 4d c0 4c 8b 45 b8 44 8b 4d b4 48 8d 42 08 41 f6 c1 03 48 89 45 c8 75 6a 45 85 c9 0f 85 8a 00 00 00 <48> 8b 12 4c 89 e6 48 c7 c7 8a c8 1d 84 44 89 4d b4 4c 89 45 b8 RIP [] show_stack_log_lvl.cold.1+0x73/0x12e arch/x86/kernel/dumpstack_64.c:287 RSP CR2: ffff8800fffffff8 ---[ end trace 99514ed9906b0ada ]---