ci2 starts bisection 2023-07-26 10:03:12.580935522 +0000 UTC m=+120.905179923 bisecting fixing commit since 09e0f8509684d14f06d86c4de0f9f2d635d04b40 building syzkaller on aaed018397bf51a5aaff9a072ba223d81cd3c107 ensuring issue is reproducible on original commit 09e0f8509684d14f06d86c4de0f9f2d635d04b40 testing commit 09e0f8509684d14f06d86c4de0f9f2d635d04b40 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 127727ce3aeec6373a1ff66a6cd9cdf503e93bcb7f564610a45093ba66d48ba0 run #0: failed: failed to run binary in VM: broken console: Permission denied (publickey) run #1: crashed: BUG: stack guard page was hit in sys_sendmmsg run #2: crashed: BUG: stack guard page was hit in sys_sendmmsg run #3: crashed: BUG: stack guard page was hit in sys_sendmmsg run #4: crashed: BUG: stack guard page was hit in sys_sendmmsg run #5: crashed: BUG: stack guard page was hit in sys_sendmmsg run #6: crashed: BUG: stack guard page was hit in sys_sendmmsg run #7: crashed: BUG: stack guard page was hit in sys_sendmmsg run #8: crashed: BUG: stack guard page was hit in sys_sendmmsg run #9: crashed: BUG: stack guard page was hit in sys_sendmmsg run #10: crashed: BUG: stack guard page was hit in sys_sendmmsg run #11: crashed: BUG: stack guard page was hit in sys_sendmmsg run #12: crashed: BUG: stack guard page was hit in sys_sendmmsg run #13: crashed: BUG: stack guard page was hit in sys_sendmmsg run #14: crashed: BUG: stack guard page was hit in sys_sendmmsg run #15: crashed: BUG: stack guard page was hit in sys_sendmmsg run #16: crashed: BUG: stack guard page was hit in sys_sendmmsg run #17: crashed: BUG: stack guard page was hit in sys_sendmmsg run #18: crashed: BUG: stack guard page was hit in sys_sendmmsg run #19: crashed: BUG: stack guard page was hit in sys_sendmmsg run #20: crashed: BUG: stack guard page was hit in sys_sendmmsg run #21: crashed: BUG: stack guard page was hit in sys_sendmmsg run #22: crashed: BUG: stack guard page was hit in sys_sendmmsg run #23: crashed: BUG: stack guard page was hit in sys_sendmmsg run #24: crashed: BUG: stack guard page was hit in sys_sendmmsg run #25: crashed: BUG: stack guard page was hit in sys_sendmmsg run #26: crashed: BUG: stack guard page was hit in sys_sendmmsg run #27: crashed: BUG: stack guard page was hit in sys_sendmmsg run #28: crashed: BUG: stack guard page was hit in sys_sendmmsg run #29: crashed: BUG: stack guard page was hit in sys_sendmmsg run #30: crashed: BUG: stack guard page was hit in sys_sendmmsg run #31: crashed: BUG: stack guard page was hit in sys_sendmmsg run #32: crashed: BUG: stack guard page was hit in sys_sendmmsg run #33: crashed: BUG: stack guard page was hit in sys_sendmmsg run #34: crashed: BUG: stack guard page was hit in sys_sendmmsg run #35: crashed: BUG: stack guard page was hit in sys_sendmmsg run #36: crashed: BUG: stack guard page was hit in sys_sendmmsg run #37: crashed: BUG: stack guard page was hit in sys_sendmmsg run #38: crashed: BUG: stack guard page was hit in sys_sendmmsg representative crash: BUG: stack guard page was hit in sys_sendmmsg, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 09e0f8509684d14f06d86c4de0f9f2d635d04b40 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 03c4ac60f0a1e44db9562b772b7d27fd2fa12bb7da5c3173308c2bbaaaf01bce run #0: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor3778864695" "root@10.128.10.62:./syz-executor3778864695"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.10.62, user root, command sftp OpenSSH_9.2p1 Debian-2, OpenSSL 3.0.9 30 May 2023 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.62 [10.128.10.62] port 22. debug1: fd 3 clearing O_NONBLOCK debug1: Connection established. debug1: identity file /root/.ssh/id_rsa type -1 debug1: identity file /root/.ssh/id_rsa-cert type -1 debug1: identity file /root/.ssh/id_ecdsa type -1 debug1: identity file /root/.ssh/id_ecdsa-cert type -1 debug1: identity file /root/.ssh/id_ecdsa_sk type -1 debug1: identity file /root/.ssh/id_ecdsa_sk-cert type -1 debug1: identity file /root/.ssh/id_ed25519 type -1 debug1: identity file /root/.ssh/id_ed25519-cert type -1 debug1: identity file /root/.ssh/id_ed25519_sk type -1 debug1: identity file /root/.ssh/id_ed25519_sk-cert type -1 debug1: identity file /root/.ssh/id_xmss type -1 debug1: identity file /root/.ssh/id_xmss-cert type -1 debug1: identity file /root/.ssh/id_dsa type -1 debug1: identity file /root/.ssh/id_dsa-cert type -1 debug1: Local version string SSH-2.0-OpenSSH_9.2p1 Debian-2 Connection timed out during banner exchange Connection to 10.128.10.62 port 22 timed out scp: Connection closed run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK false negative chance: 0.000 kconfig minimization: base=5179 full=6523 leaves diff=252 split chunks (needed=false): <252> split chunk #0 of len 252 into 5 parts testing without sub-chunk 1/5 testing commit 09e0f8509684d14f06d86c4de0f9f2d635d04b40 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 215c7522e0bbe80a0f146dd35095735fcb405078fefab19c7bb9442606f799b1 all runs: crashed: BUG: stack guard page was hit in sys_sendmmsg representative crash: BUG: stack guard page was hit in sys_sendmmsg, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 2/5 testing commit 09e0f8509684d14f06d86c4de0f9f2d635d04b40 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c01eff95cff1b59f89bc004e42f7af3fbc615654ee6377bc4580bfa978e300af all runs: crashed: BUG: stack guard page was hit in sys_sendmmsg representative crash: BUG: stack guard page was hit in sys_sendmmsg, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 3/5 testing commit 09e0f8509684d14f06d86c4de0f9f2d635d04b40 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: dbd6d590730d6ff289033f4816c196b0f6de53afba5401751aa9aca93a72c7ef all runs: crashed: BUG: stack guard page was hit in sys_sendmmsg representative crash: BUG: stack guard page was hit in sys_sendmmsg, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 testing commit 09e0f8509684d14f06d86c4de0f9f2d635d04b40 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 43bbc8a1561e8217582f3174e4d03eca8f38d6c07c5df3d9ba02174457fe1c4d all runs: crashed: BUG: stack guard page was hit in sys_sendmmsg representative crash: BUG: stack guard page was hit in sys_sendmmsg, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 5/5 testing commit 09e0f8509684d14f06d86c4de0f9f2d635d04b40 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building 09e0f8509684d14f06d86c4de0f9f2d635d04b40: net/socket.c:1225: undefined reference to `wext_handle_ioctl' net/socket.c:3420: undefined reference to `compat_wext_handle_ioctl' net/core/net-procfs.c:329: undefined reference to `wext_proc_init' net/core/net-procfs.c:345: undefined reference to `wext_proc_exit' minimized to 48 configs; suspects: [HID_ZEROPLUS USB_NET_DM9601 USB_NET_GL620A USB_NET_MCS7830 USB_NET_NET1080 USB_NET_PLUSB USB_NET_RNDIS_HOST USB_NET_SMSC75XX USB_NET_SMSC95XX USB_NET_SR9700 USB_NET_SR9800 USB_NET_ZAURUS USB_OHCI_HCD USB_OHCI_HCD_PCI USB_OHCI_HCD_PLATFORM USB_OTG USB_OTG_FSM USB_PRINTER USB_SERIAL_GENERIC USB_SERIAL_PL2303 USB_STORAGE_ALAUDA USB_STORAGE_CYPRESS_ATACB USB_STORAGE_DATAFAB USB_STORAGE_FREECOM USB_STORAGE_ISD200 USB_STORAGE_JUMPSHOT USB_STORAGE_KARMA USB_STORAGE_ONETOUCH USB_STORAGE_SDDR09 USB_STORAGE_SDDR55 USB_STORAGE_USBAT USB_TRANCEVIBRATOR USB_U_AUDIO USB_U_ETHER USB_U_SERIAL USB_WDM WLAN WLAN_VENDOR_ATH WLAN_VENDOR_ATMEL WLAN_VENDOR_BROADCOM WLAN_VENDOR_INTERSIL WLAN_VENDOR_MARVELL WLAN_VENDOR_MEDIATEK WLAN_VENDOR_MICROCHIP WLAN_VENDOR_PURELIFI WLAN_VENDOR_RALINK WLAN_VENDOR_REALTEK WLAN_VENDOR_RSI WLAN_VENDOR_SILABS WLAN_VENDOR_ZYDAS X86_X32_ABI ZEROPLUS_FF] testing current HEAD 3803ae4a2832706860970b8a81591bd0c7798636 testing commit 3803ae4a2832706860970b8a81591bd0c7798636 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0682ffe9d71084636b7d665af391c9865dc7fe2d422d424f2620b5484b1b78de all runs: crashed: BUG: stack guard page was hit in sys_sendmmsg representative crash: BUG: stack guard page was hit in sys_sendmmsg, types: [UNKNOWN] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 2h34m28.211887545s (build: 1h59m54.018654151s, test: 29m15.475647596s) crash still not fixed on HEAD or HEAD had kernel test errors commit msg: BACKPORT: mm: introduce new 'lock_mm_and_find_vma()' page fault helper crash: BUG: stack guard page was hit in sys_sendmmsg BUG: TASK stack guard page was hit at ffffc90000defff8 (stack is ffffc90000df0000..ffffc90000df8000) stack guard page: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 403 Comm: syz-executor.0 Not tainted 6.1.25-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 RIP: 0010:vsnprintf+0x133/0x1a90 lib/vsprintf.c:2752 Code: 24 28 48 8d 70 10 48 c1 e8 03 48 89 44 24 20 4c 8b 74 24 48 48 89 74 24 18 4d 89 fc 4c 89 ff 4c 8d bc 24 80 00 00 00 4c 89 fe 58 19 00 00 89 c3 48 8b 44 24 38 42 80 3c 28 00 74 08 4c 89 ff RSP: 0018:ffffc90000df0000 EFLAGS: 00010a02 RAX: 1ffff920001be02c RBX: 1ffff920001be00c RCX: ffffc90000df0168 RDX: 000000007fffffff RSI: ffffc90000df0080 RDI: ffffffff84899a40 RBP: ffffc90000df00f0 R08: dffffc0000000000 R09: ffffc90000df0160 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff84899a40 R13: dffffc0000000000 R14: ffffc90000df0320 R15: ffffc90000df0080 FS: 00007f78283356c0(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc90000defff8 CR3: 000000010f1e1000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: sprintf+0xd1/0x120 lib/vsprintf.c:3004 print_time kernel/printk/printk.c:1276 [inline] info_print_prefix+0x149/0x2d0 kernel/printk/printk.c:1302 record_print_text+0x140/0x340 kernel/printk/printk.c:1351 console_emit_next_record+0x573/0x910 kernel/printk/printk.c:2724 console_unlock+0x28e/0x560 kernel/printk/printk.c:2870 vprintk_emit+0xe1/0x340 kernel/printk/printk.c:2272 vprintk_default+0x18/0x20 kernel/printk/printk.c:2283 vprintk+0x49/0x50 kernel/printk/printk_safe.c:50 _printk+0xca/0x10a kernel/printk/printk.c:2293 __dev_queue_xmit+0x18a5/0x2d10 dev_queue_xmit include/linux/netdevice.h:3072 [inline] neigh_connected_output+0x42a/0x4b0 net/core/neighbour.c:1612 neigh_output include/net/neighbour.h:554 [inline] ip_finish_output2+0x98e/0xe80 net/ipv4/ip_output.c:228 __ip_finish_output+0x148/0x2f0 ip_finish_output+0x27/0x200 net/ipv4/ip_output.c:316 NF_HOOK_COND include/linux/netfilter.h:294 [inline] ip_mc_output+0x326/0x960 net/ipv4/ip_output.c:415 dst_output include/net/dst.h:444 [inline] ip_local_out+0x71/0x80 net/ipv4/ip_output.c:126 iptunnel_xmit+0x49e/0x800 net/ipv4/ip_tunnel_core.c:82 ip_tunnel_xmit+0x1c8b/0x2960 net/ipv4/ip_tunnel.c:813 __gre_xmit net/ipv4/ip_gre.c:469 [inline] ipgre_xmit+0x683/0x9e0 net/ipv4/ip_gre.c:661 __netdev_start_xmit include/linux/netdevice.h:4904 [inline] netdev_start_xmit include/linux/netdevice.h:4918 [inline] xmit_one net/core/dev.c:3600 [inline] dev_hard_start_xmit+0x1d2/0x4d0 net/core/dev.c:3616 __dev_queue_xmit+0x1430/0x2d10 net/core/dev.c:4266 dev_queue_xmit include/linux/netdevice.h:3072 [inline] neigh_connected_output+0x42a/0x4b0 net/core/neighbour.c:1612 neigh_output include/net/neighbour.h:554 [inline] ip_finish_output2+0x98e/0xe80 net/ipv4/ip_output.c:228 __ip_finish_output+0x148/0x2f0 ip_finish_output+0x27/0x200 net/ipv4/ip_output.c:316 NF_HOOK_COND include/linux/netfilter.h:294 [inline] ip_mc_output+0x326/0x960 net/ipv4/ip_output.c:415 dst_output include/net/dst.h:444 [inline] ip_local_out+0x71/0x80 net/ipv4/ip_output.c:126 iptunnel_xmit+0x49e/0x800 net/ipv4/ip_tunnel_core.c:82 ip_tunnel_xmit+0x1c8b/0x2960 net/ipv4/ip_tunnel.c:813 sit_tunnel_xmit__ net/ipv6/sit.c:1057 [inline] sit_tunnel_xmit+0x921/0x21d0 net/ipv6/sit.c:1073 __netdev_start_xmit include/linux/netdevice.h:4904 [inline] netdev_start_xmit include/linux/netdevice.h:4918 [inline] xmit_one net/core/dev.c:3600 [inline] dev_hard_start_xmit+0x1d2/0x4d0 net/core/dev.c:3616 __dev_queue_xmit+0x1430/0x2d10 net/core/dev.c:4266 dev_queue_xmit include/linux/netdevice.h:3072 [inline] neigh_connected_output+0x42a/0x4b0 net/core/neighbour.c:1612 neigh_output include/net/neighbour.h:554 [inline] ip_finish_output2+0x98e/0xe80 net/ipv4/ip_output.c:228 __ip_finish_output+0x148/0x2f0 ip_finish_output+0x27/0x200 net/ipv4/ip_output.c:316 NF_HOOK_COND include/linux/netfilter.h:294 [inline] ip_mc_output+0x326/0x960 net/ipv4/ip_output.c:415 dst_output include/net/dst.h:444 [inline] ip_local_out+0x71/0x80 net/ipv4/ip_output.c:126 iptunnel_xmit+0x49e/0x800 net/ipv4/ip_tunnel_core.c:82 ip_tunnel_xmit+0x1c8b/0x2960 net/ipv4/ip_tunnel.c:813 __gre_xmit net/ipv4/ip_gre.c:469 [inline] ipgre_xmit+0x683/0x9e0 net/ipv4/ip_gre.c:661 __netdev_start_xmit include/linux/netdevice.h:4904 [inline] netdev_start_xmit include/linux/netdevice.h:4918 [inline] xmit_one net/core/dev.c:3600 [inline] dev_hard_start_xmit+0x1d2/0x4d0 net/core/dev.c:3616 __dev_queue_xmit+0x1430/0x2d10 net/core/dev.c:4266 dev_queue_xmit include/linux/netdevice.h:3072 [inline] neigh_connected_output+0x42a/0x4b0 net/core/neighbour.c:1612 neigh_output include/net/neighbour.h:554 [inline] ip_finish_output2+0x98e/0xe80 net/ipv4/ip_output.c:228 __ip_finish_output+0x148/0x2f0 ip_finish_output+0x27/0x200 net/ipv4/ip_output.c:316 NF_HOOK_COND include/linux/netfilter.h:294 [inline] ip_mc_output+0x326/0x960 net/ipv4/ip_output.c:415 dst_output include/net/dst.h:444 [inline] ip_local_out+0x71/0x80 net/ipv4/ip_output.c:126 iptunnel_xmit+0x49e/0x800 net/ipv4/ip_tunnel_core.c:82 ip_tunnel_xmit+0x1c8b/0x2960 net/ipv4/ip_tunnel.c:813 sit_tunnel_xmit__ net/ipv6/sit.c:1057 [inline] sit_tunnel_xmit+0x921/0x21d0 net/ipv6/sit.c:1073 __netdev_start_xmit include/linux/netdevice.h:4904 [inline] netdev_start_xmit include/linux/netdevice.h:4918 [inline] xmit_one net/core/dev.c:3600 [inline] dev_hard_start_xmit+0x1d2/0x4d0 net/core/dev.c:3616 __dev_queue_xmit+0x1430/0x2d10 net/core/dev.c:4266 dev_queue_xmit include/linux/netdevice.h:3072 [inline] neigh_connected_output+0x42a/0x4b0 net/core/neighbour.c:1612 neigh_output include/net/neighbour.h:554 [inline] ip_finish_output2+0x98e/0xe80 net/ipv4/ip_output.c:228 __ip_finish_output+0x148/0x2f0 ip_finish_output+0x27/0x200 net/ipv4/ip_output.c:316 NF_HOOK_COND include/linux/netfilter.h:294 [inline] ip_mc_output+0x326/0x960 net/ipv4/ip_output.c:415 dst_output include/net/dst.h:444 [inline] ip_local_out+0x71/0x80 net/ipv4/ip_output.c:126 iptunnel_xmit+0x49e/0x800 net/ipv4/ip_tunnel_core.c:82 ip_tunnel_xmit+0x1c8b/0x2960 net/ipv4/ip_tunnel.c:813 __gre_xmit net/ipv4/ip_gre.c:469 [inline] ipgre_xmit+0x683/0x9e0 net/ipv4/ip_gre.c:661 __netdev_start_xmit include/linux/netdevice.h:4904 [inline] netdev_start_xmit include/linux/netdevice.h:4918 [inline] xmit_one net/core/dev.c:3600 [inline] dev_hard_start_xmit+0x1d2/0x4d0 net/core/dev.c:3616 __dev_queue_xmit+0x1430/0x2d10 net/core/dev.c:4266 dev_queue_xmit include/linux/netdevice.h:3072 [inline] neigh_connected_output+0x42a/0x4b0 net/core/neighbour.c:1612 neigh_output include/net/neighbour.h:554 [inline] ip_finish_output2+0x98e/0xe80 net/ipv4/ip_output.c:228 __ip_finish_output+0x148/0x2f0 ip_finish_output+0x27/0x200 net/ipv4/ip_output.c:316 NF_HOOK_COND include/linux/netfilter.h:294 [inline] ip_mc_output+0x326/0x960 net/ipv4/ip_output.c:415 dst_output include/net/dst.h:444 [inline] ip_local_out+0x71/0x80 net/ipv4/ip_output.c:126 iptunnel_xmit+0x49e/0x800 net/ipv4/ip_tunnel_core.c:82 ip_tunnel_xmit+0x1c8b/0x2960 net/ipv4/ip_tunnel.c:813 sit_tunnel_xmit__ net/ipv6/sit.c:1057 [inline] sit_tunnel_xmit+0x921/0x21d0 net/ipv6/sit.c:1073 __netdev_start_xmit include/linux/netdevice.h:4904 [inline] netdev_start_xmit include/linux/netdevice.h:4918 [inline] xmit_one net/core/dev.c:3600 [inline] dev_hard_start_xmit+0x1d2/0x4d0 net/core/dev.c:3616 __dev_queue_xmit+0x1430/0x2d10 net/core/dev.c:4266 dev_queue_xmit include/linux/netdevice.h:3072 [inline] neigh_connected_output+0x42a/0x4b0 net/core/neighbour.c:1612 neigh_output include/net/neighbour.h:554 [inline] ip_finish_output2+0x98e/0xe80 net/ipv4/ip_output.c:228 __ip_finish_output+0x148/0x2f0 ip_finish_output+0x27/0x200 net/ipv4/ip_output.c:316 NF_HOOK_COND include/linux/netfilter.h:294 [inline] ip_mc_output+0x326/0x960 net/ipv4/ip_output.c:415 dst_output include/net/dst.h:444 [inline] ip_local_out+0x71/0x80 net/ipv4/ip_output.c:126 iptunnel_xmit+0x49e/0x800 net/ipv4/ip_tunnel_core.c:82 ip_tunnel_xmit+0x1c8b/0x2960 net/ipv4/ip_tunnel.c:813 __gre_xmit net/ipv4/ip_gre.c:469 [inline] ipgre_xmit+0x683/0x9e0 net/ipv4/ip_gre.c:661 __netdev_start_xmit include/linux/netdevice.h:4904 [inline] netdev_start_xmit include/linux/netdevice.h:4918 [inline] xmit_one net/core/dev.c:3600 [inline] dev_hard_start_xmit+0x1d2/0x4d0 net/core/dev.c:3616 __dev_queue_xmit+0x1430/0x2d10 net/core/dev.c:4266 dev_queue_xmit include/linux/netdevice.h:3072 [inline] neigh_connected_output+0x42a/0x4b0 net/core/neighbour.c:1612 neigh_output include/net/neighbour.h:554 [inline] ip_finish_output2+0x98e/0xe80 net/ipv4/ip_output.c:228 __ip_finish_output+0x148/0x2f0 ip_finish_output+0x27/0x200 net/ipv4/ip_output.c:316 NF_HOOK_COND include/linux/netfilter.h:294 [inline] ip_mc_output+0x326/0x960 net/ipv4/ip_output.c:415 dst_output include/net/dst.h:444 [inline] ip_local_out+0x71/0x80 net/ipv4/ip_output.c:126 iptunnel_xmit+0x49e/0x800 net/ipv4/ip_tunnel_core.c:82 ip_tunnel_xmit+0x1c8b/0x2960 net/ipv4/ip_tunnel.c:813 sit_tunnel_xmit__ net/ipv6/sit.c:1057 [inline] sit_tunnel_xmit+0x921/0x21d0 net/ipv6/sit.c:1073 __netdev_start_xmit include/linux/netdevice.h:4904 [inline] netdev_start_xmit include/linux/netdevice.h:4918 [inline] xmit_one net/core/dev.c:3600 [inline] dev_hard_start_xmit+0x1d2/0x4d0 net/core/dev.c:3616 __dev_queue_xmit+0x1430/0x2d10 net/core/dev.c:4266 dev_queue_xmit include/linux/netdevice.h:3072 [inline] neigh_connected_output+0x42a/0x4b0 net/core/neighbour.c:1612 neigh_output include/net/neighbour.h:554 [inline] ip_finish_output2+0x98e/0xe80 net/ipv4/ip_output.c:228 __ip_finish_output+0x148/0x2f0 ip_finish_output+0x27/0x200 net/ipv4/ip_output.c:316 NF_HOOK_COND include/linux/netfilter.h:294 [inline] ip_mc_output+0x326/0x960 net/ipv4/ip_output.c:415 dst_output include/net/dst.h:444 [inline] ip_local_out+0x71/0x80 net/ipv4/ip_output.c:126 iptunnel_xmit+0x49e/0x800 net/ipv4/ip_tunnel_core.c:82 ip_tunnel_xmit+0x1c8b/0x2960 net/ipv4/ip_tunnel.c:813 __gre_xmit net/ipv4/ip_gre.c:469 [inline] ipgre_xmit+0x683/0x9e0 net/ipv4/ip_gre.c:661 __netdev_start_xmit include/linux/netdevice.h:4904 [inline] netdev_start_xmit include/linux/netdevice.h:4918 [inline] xmit_one net/core/dev.c:3600 [inline] dev_hard_start_xmit+0x1d2/0x4d0 net/core/dev.c:3616 __dev_queue_xmit+0x1430/0x2d10 net/core/dev.c:4266 dev_queue_xmit include/linux/netdevice.h:3072 [inline] neigh_connected_output+0x42a/0x4b0 net/core/neighbour.c:1612 neigh_output include/net/neighbour.h:554 [inline] ip_finish_output2+0x98e/0xe80 net/ipv4/ip_output.c:228 __ip_finish_output+0x148/0x2f0 ip_finish_output+0x27/0x200 net/ipv4/ip_output.c:316 NF_HOOK_COND include/linux/netfilter.h:294 [inline] ip_mc_output+0x326/0x960 net/ipv4/ip_output.c:415 dst_output include/net/dst.h:444 [inline] ip_local_out net/ipv4/ip_output.c:126 [inline] ip_send_skb net/ipv4/ip_output.c:1586 [inline] ip_push_pending_frames+0xea/0x140 net/ipv4/ip_output.c:1606 raw_sendmsg+0x1143/0x2260 net/ipv4/raw.c:647 inet_sendmsg+0x8c/0xa0 net/ipv4/af_inet.c:830 sock_sendmsg_nosec net/socket.c:716 [inline] sock_sendmsg net/socket.c:736 [inline] ____sys_sendmsg+0x492/0x810 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmmsg+0x31b/0x590 net/socket.c:2622 __do_sys_sendmmsg net/socket.c:2651 [inline] __se_sys_sendmmsg net/socket.c:2648 [inline] __x64_sys_sendmmsg+0x9b/0xb0 net/socket.c:2648 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f782767c999 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 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 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f78283350c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007f782779bf80 RCX: 00007f782767c999 RDX: 0000000000000300 RSI: 0000000020003380 RDI: 0000000000000003 RBP: 00007f78276d8c88 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f782779bf80 R15: 00007ffd3985da38 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:vsnprintf+0x133/0x1a90 lib/vsprintf.c:2752 Code: 24 28 48 8d 70 10 48 c1 e8 03 48 89 44 24 20 4c 8b 74 24 48 48 89 74 24 18 4d 89 fc 4c 89 ff 4c 8d bc 24 80 00 00 00 4c 89 fe 58 19 00 00 89 c3 48 8b 44 24 38 42 80 3c 28 00 74 08 4c 89 ff RSP: 0018:ffffc90000df0000 EFLAGS: 00010a02 RAX: 1ffff920001be02c RBX: 1ffff920001be00c RCX: ffffc90000df0168 RDX: 000000007fffffff RSI: ffffc90000df0080 RDI: ffffffff84899a40 RBP: ffffc90000df00f0 R08: dffffc0000000000 R09: ffffc90000df0160 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff84899a40 R13: dffffc0000000000 R14: ffffc90000df0320 R15: ffffc90000df0080 FS: 00007f78283356c0(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc90000defff8 CR3: 000000010f1e1000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 24 28 and $0x28,%al 2: 48 8d 70 10 lea 0x10(%rax),%rsi 6: 48 c1 e8 03 shr $0x3,%rax a: 48 89 44 24 20 mov %rax,0x20(%rsp) f: 4c 8b 74 24 48 mov 0x48(%rsp),%r14 14: 48 89 74 24 18 mov %rsi,0x18(%rsp) 19: 4d 89 fc mov %r15,%r12 1c: 4c 89 ff mov %r15,%rdi 1f: 4c 8d bc 24 80 00 00 lea 0x80(%rsp),%r15 26: 00 27: 4c 89 fe mov %r15,%rsi * 2a: e8 58 19 00 00 call 0x1987 <-- trapping instruction 2f: 89 c3 mov %eax,%ebx 31: 48 8b 44 24 38 mov 0x38(%rsp),%rax 36: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) 3b: 74 08 je 0x45 3d: 4c 89 ff mov %r15,%rdi