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===================================================== BUG: KMSAN: uninit-value in is_packet_valid net/sched/sch_etf.c:94 [inline] BUG: KMSAN: uninit-value in etf_enqueue_timesortedlist+0x6cc/0x1060 net/sched/sch_etf.c:169 CPU: 1 PID: 13542 Comm: syz-executor.3 Not tainted 5.6.0-rc7-syzkaller #0 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+0x1c9/0x220 lib/dump_stack.c:118 kmsan_report+0xf7/0x1e0 mm/kmsan/kmsan_report.c:118 __msan_warning+0x58/0xa0 mm/kmsan/kmsan_instr.c:215 is_packet_valid net/sched/sch_etf.c:94 [inline] etf_enqueue_timesortedlist+0x6cc/0x1060 net/sched/sch_etf.c:169 __dev_xmit_skb net/core/dev.c:3710 [inline] __dev_queue_xmit+0x1c00/0x3b20 net/core/dev.c:4021 dev_queue_xmit+0x4b/0x60 net/core/dev.c:4085 neigh_hh_output include/net/neighbour.h:499 [inline] neigh_output include/net/neighbour.h:508 [inline] ip6_finish_output2+0x2056/0x2640 net/ipv6/ip6_output.c:116 __ip6_finish_output+0x824/0x8e0 net/ipv6/ip6_output.c:142 ip6_finish_output+0x166/0x410 net/ipv6/ip6_output.c:152 NF_HOOK_COND include/linux/netfilter.h:296 [inline] ip6_output+0x60a/0x770 net/ipv6/ip6_output.c:175 dst_output include/net/dst.h:436 [inline] NF_HOOK include/linux/netfilter.h:307 [inline] ip6_xmit+0x1f67/0x2710 net/ipv6/ip6_output.c:279 tcp_v6_send_synack+0xa7a/0xb90 net/ipv6/tcp_ipv6.c:521 tcp_conn_request+0x48c0/0x4d10 net/ipv4/tcp_input.c:6719 tcp_v6_conn_request+0x242/0x2d0 net/ipv6/tcp_ipv6.c:1151 tcp_rcv_state_process+0x26b/0x71c0 net/ipv4/tcp_input.c:6190 tcp_v6_do_rcv+0xed3/0x1d00 net/ipv6/tcp_ipv6.c:1463 tcp_v6_rcv+0x3f59/0x4b40 net/ipv6/tcp_ipv6.c:1659 ip6_protocol_deliver_rcu+0x13c3/0x22c0 net/ipv6/ip6_input.c:432 ip6_input_finish net/ipv6/ip6_input.c:473 [inline] NF_HOOK include/linux/netfilter.h:307 [inline] ip6_input+0x2af/0x340 net/ipv6/ip6_input.c:482 dst_input include/net/dst.h:442 [inline] ip6_rcv_finish net/ipv6/ip6_input.c:76 [inline] NF_HOOK include/linux/netfilter.h:307 [inline] ipv6_rcv+0x683/0x710 net/ipv6/ip6_input.c:306 __netif_receive_skb_one_core net/core/dev.c:5187 [inline] __netif_receive_skb net/core/dev.c:5301 [inline] netif_receive_skb_internal net/core/dev.c:5391 [inline] netif_receive_skb+0x66b/0xf20 net/core/dev.c:5450 tun_rx_batched include/linux/skbuff.h:4351 [inline] tun_get_user+0x6aef/0x6f60 drivers/net/tun.c:1997 tun_chr_write_iter+0x1f2/0x360 drivers/net/tun.c:2026 call_write_iter include/linux/fs.h:1902 [inline] new_sync_write fs/read_write.c:483 [inline] __vfs_write+0xa5a/0xca0 fs/read_write.c:496 vfs_write+0x44a/0x8f0 fs/read_write.c:558 ksys_write+0x267/0x450 fs/read_write.c:611 __do_sys_write fs/read_write.c:623 [inline] __se_sys_write+0x92/0xb0 fs/read_write.c:620 __x64_sys_write+0x4a/0x70 fs/read_write.c:620 do_syscall_64+0xb8/0x160 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x416361 Code: 75 14 b8 01 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 c4 1b 00 00 c3 48 83 ec 08 e8 ca fc ff ff 48 89 04 24 b8 01 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 13 fd ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007fd1302acc60 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000507b60 RCX: 0000000000416361 RDX: 000000000000008e RSI: 0000000020000080 RDI: 00000000000000f0 RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000293 R12: 00000000ffffffff R13: 0000000000000bbe R14: 00000000004cde6b R15: 00007fd1302ad6d4 Uninit was created at: kmsan_save_stack_with_flags+0x3c/0x90 mm/kmsan/kmsan.c:144 kmsan_internal_alloc_meta_for_pages mm/kmsan/kmsan_shadow.c:280 [inline] kmsan_alloc_page+0xb9/0x180 mm/kmsan/kmsan_shadow.c:304 __alloc_pages_nodemask+0x5712/0x5e80 mm/page_alloc.c:4777 alloc_pages_current+0x67d/0x990 mm/mempolicy.c:2211 alloc_pages include/linux/gfp.h:532 [inline] alloc_slab_page+0x111/0x12f0 mm/slub.c:1530 allocate_slab mm/slub.c:1675 [inline] new_slab+0x2bc/0x1130 mm/slub.c:1741 new_slab_objects mm/slub.c:2490 [inline] ___slab_alloc+0x14a3/0x2040 mm/slub.c:2651 __slab_alloc mm/slub.c:2691 [inline] slab_alloc_node mm/slub.c:2765 [inline] slab_alloc mm/slub.c:2810 [inline] kmem_cache_alloc+0xb23/0xd70 mm/slub.c:2815 reqsk_alloc include/net/request_sock.h:84 [inline] inet_reqsk_alloc+0xac/0x830 net/ipv4/tcp_input.c:6493 tcp_conn_request+0x753/0x4d10 net/ipv4/tcp_input.c:6619 tcp_v6_conn_request+0x242/0x2d0 net/ipv6/tcp_ipv6.c:1151 tcp_rcv_state_process+0x26b/0x71c0 net/ipv4/tcp_input.c:6190 tcp_v6_do_rcv+0xed3/0x1d00 net/ipv6/tcp_ipv6.c:1463 tcp_v6_rcv+0x3f59/0x4b40 net/ipv6/tcp_ipv6.c:1659 ip6_protocol_deliver_rcu+0x13c3/0x22c0 net/ipv6/ip6_input.c:432 ip6_input_finish net/ipv6/ip6_input.c:473 [inline] NF_HOOK include/linux/netfilter.h:307 [inline] ip6_input+0x2af/0x340 net/ipv6/ip6_input.c:482 dst_input include/net/dst.h:442 [inline] ip6_rcv_finish net/ipv6/ip6_input.c:76 [inline] NF_HOOK include/linux/netfilter.h:307 [inline] ipv6_rcv+0x683/0x710 net/ipv6/ip6_input.c:306 __netif_receive_skb_one_core net/core/dev.c:5187 [inline] __netif_receive_skb net/core/dev.c:5301 [inline] netif_receive_skb_internal net/core/dev.c:5391 [inline] netif_receive_skb+0x66b/0xf20 net/core/dev.c:5450 tun_rx_batched include/linux/skbuff.h:4351 [inline] tun_get_user+0x6aef/0x6f60 drivers/net/tun.c:1997 tun_chr_write_iter+0x1f2/0x360 drivers/net/tun.c:2026 call_write_iter include/linux/fs.h:1902 [inline] new_sync_write fs/read_write.c:483 [inline] __vfs_write+0xa5a/0xca0 fs/read_write.c:496 vfs_write+0x44a/0x8f0 fs/read_write.c:558 ksys_write+0x267/0x450 fs/read_write.c:611 __do_sys_write fs/read_write.c:623 [inline] __se_sys_write+0x92/0xb0 fs/read_write.c:620 __x64_sys_write+0x4a/0x70 fs/read_write.c:620 do_syscall_64+0xb8/0x160 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x44/0xa9 =====================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2020/05/08 08:46 | https://github.com/google/kmsan.git master | 21c44613a2fe | 6c70a1c2 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/05/02 12:24 | https://github.com/google/kmsan.git master | bfa90a4a3f3f | 58da4c35 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2020/05/01 00:27 | https://github.com/google/kmsan.git master | bfa90a4a3f3f | 3698959a | .config | console log | report | ci-upstream-kmsan-gce |