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===================================================== BUG: KMSAN: uninit-value in macsec_handle_frame+0x87f/0x5540 drivers/net/macsec.c:1015 CPU: 0 PID: 28621 Comm: syz-executor.1 Not tainted 5.6.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: <IRQ> __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 macsec_handle_frame+0x87f/0x5540 drivers/net/macsec.c:1015 __netif_receive_skb_core+0x21de/0x5840 net/core/dev.c:5088 __netif_receive_skb_one_core net/core/dev.c:5185 [inline] __netif_receive_skb net/core/dev.c:5301 [inline] process_backlog+0x936/0x1410 net/core/dev.c:6133 napi_poll net/core/dev.c:6571 [inline] net_rx_action+0x786/0x1aa0 net/core/dev.c:6639 __do_softirq+0x311/0x83d kernel/softirq.c:293 do_softirq_own_stack+0x49/0x80 arch/x86/entry/entry_64.S:1091 </IRQ> do_softirq+0xed/0x150 kernel/softirq.c:338 netif_rx_ni+0x202/0x3b0 net/core/dev.c:4747 pn_send+0xb48/0xd20 net/phonet/af_phonet.c:185 pn_skb_send+0x822/0xa20 net/phonet/af_phonet.c:272 pipe_handler_request net/phonet/pep.c:144 [inline] pep_sock_connect+0x2ce/0x480 net/phonet/pep.c:892 pn_socket_connect+0x6be/0xce0 net/phonet/socket.c:255 __sys_connect_file net/socket.c:1857 [inline] __sys_connect+0x6f7/0x770 net/socket.c:1874 __do_sys_connect net/socket.c:1885 [inline] __se_sys_connect net/socket.c:1882 [inline] __ia32_sys_connect+0xdb/0x130 net/socket.c:1882 do_syscall_32_irqs_on arch/x86/entry/common.c:339 [inline] do_fast_syscall_32+0x3c7/0x6e0 arch/x86/entry/common.c:410 entry_SYSENTER_compat+0x68/0x77 arch/x86/entry/entry_64_compat.S:139 RIP: 0023:0xf7f49d99 Code: 90 e8 0b 00 00 00 f3 90 0f ae e8 eb f9 8d 74 26 00 89 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000f5d440cc EFLAGS: 00000296 ORIG_RAX: 000000000000016a RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000180 RDX: 0000000000000010 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:144 [inline] kmsan_internal_poison_shadow+0x66/0xd0 mm/kmsan/kmsan.c:127 kmsan_slab_alloc+0x8a/0xe0 mm/kmsan/kmsan_hooks.c:82 slab_alloc_node mm/slub.c:2793 [inline] __kmalloc_node_track_caller+0xb40/0x1200 mm/slub.c:4401 __kmalloc_reserve net/core/skbuff.c:142 [inline] __alloc_skb+0x2fd/0xac0 net/core/skbuff.c:210 alloc_skb include/linux/skbuff.h:1081 [inline] pn_raw_send+0xf5/0x5f0 net/phonet/af_phonet.c:207 send_reset_indications net/phonet/af_phonet.c:345 [inline] phonet_rcv+0x1b40/0x2610 net/phonet/af_phonet.c:410 __netif_receive_skb_one_core net/core/dev.c:5187 [inline] __netif_receive_skb net/core/dev.c:5301 [inline] process_backlog+0x12e1/0x1410 net/core/dev.c:6133 napi_poll net/core/dev.c:6571 [inline] net_rx_action+0x786/0x1aa0 net/core/dev.c:6639 __do_softirq+0x311/0x83d kernel/softirq.c:293 =====================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2020/03/21 12:12 | https://github.com/google/kmsan.git master | a58741ac26cc | 4288d95e | .config | console log | report | ci-upstream-kmsan-gce-386 |