binder_alloc: binder_alloc_mmap_handler: 13141 20005000-20009000 already mapped failed -16 ================================================================== BUG: KMSAN: uninit-value in arch_atomic_try_cmpxchg arch/x86/include/asm/atomic.h:200 [inline] BUG: KMSAN: uninit-value in atomic_try_cmpxchg include/asm-generic/atomic-instrumented.h:73 [inline] BUG: KMSAN: uninit-value in queued_spin_lock include/asm-generic/qspinlock.h:87 [inline] BUG: KMSAN: uninit-value in do_raw_spin_lock include/linux/spinlock.h:180 [inline] BUG: KMSAN: uninit-value in __raw_spin_lock_bh include/linux/spinlock_api_smp.h:136 [inline] BUG: KMSAN: uninit-value in _raw_spin_lock_bh+0xea/0x130 kernel/locking/spinlock.c:168 CPU: 1 PID: 13155 Comm: syz-executor.4 Not tainted 5.0.0-rc1+ #9 binder: BINDER_SET_CONTEXT_MGR already set Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x173/0x1d0 lib/dump_stack.c:113 kmsan_report+0x12e/0x2a0 mm/kmsan/kmsan.c:600 __msan_warning+0x82/0xf0 mm/kmsan/kmsan_instr.c:313 arch_atomic_try_cmpxchg arch/x86/include/asm/atomic.h:200 [inline] atomic_try_cmpxchg include/asm-generic/atomic-instrumented.h:73 [inline] queued_spin_lock include/asm-generic/qspinlock.h:87 [inline] do_raw_spin_lock include/linux/spinlock.h:180 [inline] __raw_spin_lock_bh include/linux/spinlock_api_smp.h:136 [inline] _raw_spin_lock_bh+0xea/0x130 kernel/locking/spinlock.c:168 spin_lock_bh include/linux/spinlock.h:334 [inline] __rhashtable_insert_fast include/linux/rhashtable.h:614 [inline] rhashtable_lookup_get_insert_key include/linux/rhashtable.h:885 [inline] inet_frag_create net/ipv4/inet_fragment.c:194 [inline] inet_frag_find+0x1223/0x24a0 net/ipv4/inet_fragment.c:217 binder: 13141:13153 ioctl 40046207 0 returned -16 ip_find net/ipv4/ip_fragment.c:283 [inline] ip_defrag+0x47c/0x6310 net/ipv4/ip_fragment.c:695 nf_ct_ipv4_gather_frags net/ipv4/netfilter/nf_defrag_ipv4.c:34 [inline] ipv4_conntrack_defrag+0x673/0x7d0 net/ipv4/netfilter/nf_defrag_ipv4.c:89 binder: 13159 RLIMIT_NICE not set nf_hook_entry_hookfn include/linux/netfilter.h:119 [inline] nf_hook_slow+0x176/0x3d0 net/netfilter/core.c:511 nf_hook include/linux/netfilter.h:244 [inline] __ip_local_out+0x6dc/0x800 net/ipv4/ip_output.c:113 ip_local_out+0xa4/0x1d0 net/ipv4/ip_output.c:122 iptunnel_xmit+0x8a7/0xde0 net/ipv4/ip_tunnel_core.c:91 binder_alloc: 13141: binder_alloc_buf, no vma ip_tunnel_xmit+0x35b9/0x3980 net/ipv4/ip_tunnel.c:778 __gre_xmit net/ipv4/ip_gre.c:453 [inline] ipgre_xmit+0x1098/0x11c0 net/ipv4/ip_gre.c:710 binder: 13141:13158 transaction failed 29189/-3, size 0-0 line 3035 __netdev_start_xmit include/linux/netdevice.h:4382 [inline] netdev_start_xmit include/linux/netdevice.h:4391 [inline] xmit_one net/core/dev.c:3278 [inline] dev_hard_start_xmit+0x604/0xc40 net/core/dev.c:3294 __dev_queue_xmit+0x2e48/0x3b80 net/core/dev.c:3864 dev_queue_xmit+0x4b/0x60 net/core/dev.c:3897 packet_snd net/packet/af_packet.c:2932 [inline] packet_sendmsg+0x79bb/0x9760 net/packet/af_packet.c:2957 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg net/socket.c:631 [inline] ___sys_sendmsg+0xdb9/0x11b0 net/socket.c:2116 __sys_sendmsg net/socket.c:2154 [inline] __do_sys_sendmsg net/socket.c:2163 [inline] __se_sys_sendmsg+0x305/0x460 net/socket.c:2161 __x64_sys_sendmsg+0x4a/0x70 net/socket.c:2161 do_syscall_64+0xbc/0xf0 arch/x86/entry/common.c:291 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x457e29 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f54e372ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457e29 RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000003 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f54e372b6d4 R13: 00000000004c53f7 R14: 00000000004d9208 R15: 00000000ffffffff Uninit was created at: No stack ==================================================================