BUG: TASK stack guard page was hit at ffffc90005947fe8 (stack is ffffc90005948000..ffffc90005950000) Oops: stack guard page: 0000 [#1] SMP KASAN PTI CPU: 0 UID: 0 PID: 13435 Comm: syz.0.11488 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 RIP: 0010:format_decode+0x17/0xe10 lib/vsprintf.c:2666 Code: 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 41 57 41 56 41 55 41 54 53 48 83 ec 28 49 89 d5 49 89 f6 48 89 fd 04 af 20 f6 41 0f b6 de 48 89 df 48 c7 c6 50 d2 17 90 e8 71 b4 RSP: 0018:ffffc90005947ff0 EFLAGS: 00010086 RAX: 1ffff92000b29042 RBX: dffffc0000000000 RCX: 1ffff92000b29040 RDX: ffffc90005948098 RSI: 0000000000000000 RDI: ffffffff8cdd9820 RBP: ffffffff8cdd9820 R08: ffffc90005948217 R09: 0000000000000000 R10: ffffc90005948200 R11: fffff52000b29043 R12: ffffc90005948200 R13: ffffc90005948098 R14: 0000000000000000 R15: ffffffff8cdd9820 FS: 0000000000000000(0000) GS:ffff888125289000(0063) knlGS:00000000f4fe1b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: ffffc90005947fe8 CR3: 000000008f3f2000 CR4: 00000000003526f0 DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000002 DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: vsnprintf+0x102/0xee0 lib/vsprintf.c:2890 vprintk_store+0x371/0xd50 kernel/printk/printk.c:2307 vprintk_emit+0x192/0x560 kernel/printk/printk.c:2455 _printk+0xdd/0x130 kernel/printk/printk.c:2504 __dev_queue_xmit+0x1919/0x3950 net/core/dev.c:4891 dev_queue_xmit include/linux/netdevice.h:3418 [inline] neigh_hh_output include/net/neighbour.h:540 [inline] neigh_output include/net/neighbour.h:554 [inline] ip_finish_output2+0xc68/0x1070 net/ipv4/ip_output.c:237 NF_HOOK_COND include/linux/netfilter.h:307 [inline] ip_output+0x29f/0x450 net/ipv4/ip_output.c:438 dst_output include/net/dst.h:470 [inline] NF_HOOK+0x605/0x660 include/linux/netfilter.h:318 ip_vs_send_or_cont net/netfilter/ipvs/ip_vs_xmit.c:710 [inline] ip_vs_dr_xmit+0x74a/0x9f0 net/netfilter/ipvs/ip_vs_xmit.c:1460 ip_vs_in_hook+0xd88/0x1bf0 net/netfilter/ipvs/ip_vs_core.c:2238 nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline] nf_hook_slow+0xc5/0x220 net/netfilter/core.c:619 nf_hook+0x22a/0x3a0 include/linux/netfilter.h:273 __ip_local_out+0x558/0x6a0 net/ipv4/ip_output.c:120 ip_local_out+0x2a/0x190 net/ipv4/ip_output.c:129 ipvlan_process_v4_outbound+0x44b/0x730 drivers/net/ipvlan/ipvlan_core.c:461 ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:565 [inline] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:627 [inline] ipvlan_queue_xmit+0xac7/0x16c0 drivers/net/ipvlan/ipvlan_core.c:693 ipvlan_start_xmit+0x4a/0x160 drivers/net/ipvlan/ipvlan_main.c:226 __netdev_start_xmit include/linux/netdevice.h:5368 [inline] netdev_start_xmit include/linux/netdevice.h:5377 [inline] xmit_one net/core/dev.c:3888 [inline] dev_hard_start_xmit+0x2cd/0x830 net/core/dev.c:3904 __dev_queue_xmit+0x14d9/0x3950 net/core/dev.c:4870 dev_queue_xmit include/linux/netdevice.h:3418 [inline] neigh_hh_output include/net/neighbour.h:540 [inline] neigh_output include/net/neighbour.h:554 [inline] ip_finish_output2+0xc68/0x1070 net/ipv4/ip_output.c:237 NF_HOOK_COND include/linux/netfilter.h:307 [inline] ip_output+0x29f/0x450 net/ipv4/ip_output.c:438 dst_output include/net/dst.h:470 [inline] NF_HOOK+0x605/0x660 include/linux/netfilter.h:318 ip_vs_send_or_cont net/netfilter/ipvs/ip_vs_xmit.c:710 [inline] ip_vs_dr_xmit+0x74a/0x9f0 net/netfilter/ipvs/ip_vs_xmit.c:1460 ip_vs_in_hook+0xd88/0x1bf0 net/netfilter/ipvs/ip_vs_core.c:2238 nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline] nf_hook_slow+0xc5/0x220 net/netfilter/core.c:619 nf_hook+0x22a/0x3a0 include/linux/netfilter.h:273 __ip_local_out+0x558/0x6a0 net/ipv4/ip_output.c:120 ip_local_out+0x2a/0x190 net/ipv4/ip_output.c:129 ipvlan_process_v4_outbound+0x44b/0x730 drivers/net/ipvlan/ipvlan_core.c:461 ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:565 [inline] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:627 [inline] ipvlan_queue_xmit+0xac7/0x16c0 drivers/net/ipvlan/ipvlan_core.c:693 ipvlan_start_xmit+0x4a/0x160 drivers/net/ipvlan/ipvlan_main.c:226 __netdev_start_xmit include/linux/netdevice.h:5368 [inline] netdev_start_xmit include/linux/netdevice.h:5377 [inline] xmit_one net/core/dev.c:3888 [inline] dev_hard_start_xmit+0x2cd/0x830 net/core/dev.c:3904 __dev_queue_xmit+0x14d9/0x3950 net/core/dev.c:4870 dev_queue_xmit include/linux/netdevice.h:3418 [inline] neigh_hh_output include/net/neighbour.h:540 [inline] neigh_output include/net/neighbour.h:554 [inline] ip_finish_output2+0xc68/0x1070 net/ipv4/ip_output.c:237 NF_HOOK_COND include/linux/netfilter.h:307 [inline] ip_output+0x29f/0x450 net/ipv4/ip_output.c:438 dst_output include/net/dst.h:470 [inline] NF_HOOK+0x605/0x660 include/linux/netfilter.h:318 ip_vs_send_or_cont net/netfilter/ipvs/ip_vs_xmit.c:710 [inline] ip_vs_dr_xmit+0x74a/0x9f0 net/netfilter/ipvs/ip_vs_xmit.c:1460 ip_vs_in_hook+0xd88/0x1bf0 net/netfilter/ipvs/ip_vs_core.c:2238 nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline] nf_hook_slow+0xc5/0x220 net/netfilter/core.c:619 nf_hook+0x22a/0x3a0 include/linux/netfilter.h:273 __ip_local_out+0x558/0x6a0 net/ipv4/ip_output.c:120 ip_local_out+0x2a/0x190 net/ipv4/ip_output.c:129 ipvlan_process_v4_outbound+0x44b/0x730 drivers/net/ipvlan/ipvlan_core.c:461 ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:565 [inline] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:627 [inline] ipvlan_queue_xmit+0xac7/0x16c0 drivers/net/ipvlan/ipvlan_core.c:693 ipvlan_start_xmit+0x4a/0x160 drivers/net/ipvlan/ipvlan_main.c:226 __netdev_start_xmit include/linux/netdevice.h:5368 [inline] netdev_start_xmit include/linux/netdevice.h:5377 [inline] xmit_one net/core/dev.c:3888 [inline] dev_hard_start_xmit+0x2cd/0x830 net/core/dev.c:3904 __dev_queue_xmit+0x14d9/0x3950 net/core/dev.c:4870 dev_queue_xmit include/linux/netdevice.h:3418 [inline] neigh_hh_output include/net/neighbour.h:540 [inline] neigh_output include/net/neighbour.h:554 [inline] ip_finish_output2+0xc68/0x1070 net/ipv4/ip_output.c:237 NF_HOOK_COND include/linux/netfilter.h:307 [inline] ip_output+0x29f/0x450 net/ipv4/ip_output.c:438 dst_output include/net/dst.h:470 [inline] NF_HOOK+0x605/0x660 include/linux/netfilter.h:318 ip_vs_send_or_cont net/netfilter/ipvs/ip_vs_xmit.c:710 [inline] ip_vs_dr_xmit+0x74a/0x9f0 net/netfilter/ipvs/ip_vs_xmit.c:1460 ip_vs_in_hook+0xd88/0x1bf0 net/netfilter/ipvs/ip_vs_core.c:2238 nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline] nf_hook_slow+0xc5/0x220 net/netfilter/core.c:619 nf_hook+0x22a/0x3a0 include/linux/netfilter.h:273 __ip_local_out+0x558/0x6a0 net/ipv4/ip_output.c:120 ip_local_out+0x2a/0x190 net/ipv4/ip_output.c:129 ipvlan_process_v4_outbound+0x44b/0x730 drivers/net/ipvlan/ipvlan_core.c:461 ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:565 [inline] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:627 [inline] ipvlan_queue_xmit+0xac7/0x16c0 drivers/net/ipvlan/ipvlan_core.c:693 ipvlan_start_xmit+0x4a/0x160 drivers/net/ipvlan/ipvlan_main.c:226 __netdev_start_xmit include/linux/netdevice.h:5368 [inline] netdev_start_xmit include/linux/netdevice.h:5377 [inline] xmit_one net/core/dev.c:3888 [inline] dev_hard_start_xmit+0x2cd/0x830 net/core/dev.c:3904 __dev_queue_xmit+0x14d9/0x3950 net/core/dev.c:4870 dev_queue_xmit include/linux/netdevice.h:3418 [inline] neigh_hh_output include/net/neighbour.h:540 [inline] neigh_output include/net/neighbour.h:554 [inline] ip_finish_output2+0xc68/0x1070 net/ipv4/ip_output.c:237 NF_HOOK_COND include/linux/netfilter.h:307 [inline] ip_output+0x29f/0x450 net/ipv4/ip_output.c:438 dst_output include/net/dst.h:470 [inline] NF_HOOK+0x605/0x660 include/linux/netfilter.h:318 ip_vs_send_or_cont net/netfilter/ipvs/ip_vs_xmit.c:710 [inline] ip_vs_dr_xmit+0x74a/0x9f0 net/netfilter/ipvs/ip_vs_xmit.c:1460 ip_vs_in_hook+0xd88/0x1bf0 net/netfilter/ipvs/ip_vs_core.c:2238 nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline] nf_hook_slow+0xc5/0x220 net/netfilter/core.c:619 nf_hook+0x22a/0x3a0 include/linux/netfilter.h:273 __ip_local_out+0x558/0x6a0 net/ipv4/ip_output.c:120 ip_local_out+0x2a/0x190 net/ipv4/ip_output.c:129 ipvlan_process_v4_outbound+0x44b/0x730 drivers/net/ipvlan/ipvlan_core.c:461 ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:565 [inline] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:627 [inline] ipvlan_queue_xmit+0xac7/0x16c0 drivers/net/ipvlan/ipvlan_core.c:693 ipvlan_start_xmit+0x4a/0x160 drivers/net/ipvlan/ipvlan_main.c:226 __netdev_start_xmit include/linux/netdevice.h:5368 [inline] netdev_start_xmit include/linux/netdevice.h:5377 [inline] xmit_one net/core/dev.c:3888 [inline] dev_hard_start_xmit+0x2cd/0x830 net/core/dev.c:3904 __dev_queue_xmit+0x14d9/0x3950 net/core/dev.c:4870 dev_queue_xmit include/linux/netdevice.h:3418 [inline] neigh_hh_output include/net/neighbour.h:540 [inline] neigh_output include/net/neighbour.h:554 [inline] ip_finish_output2+0xc68/0x1070 net/ipv4/ip_output.c:237 NF_HOOK_COND include/linux/netfilter.h:307 [inline] ip_output+0x29f/0x450 net/ipv4/ip_output.c:438 dst_output include/net/dst.h:470 [inline] NF_HOOK+0x605/0x660 include/linux/netfilter.h:318 ip_vs_send_or_cont net/netfilter/ipvs/ip_vs_xmit.c:710 [inline] ip_vs_dr_xmit+0x74a/0x9f0 net/netfilter/ipvs/ip_vs_xmit.c:1460 ip_vs_in_hook+0xd88/0x1bf0 net/netfilter/ipvs/ip_vs_core.c:2238 nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline] nf_hook_slow+0xc5/0x220 net/netfilter/core.c:619 nf_hook+0x22a/0x3a0 include/linux/netfilter.h:273 __ip_local_out+0x558/0x6a0 net/ipv4/ip_output.c:120 ip_local_out+0x2a/0x190 net/ipv4/ip_output.c:129 ipvlan_process_v4_outbound+0x44b/0x730 drivers/net/ipvlan/ipvlan_core.c:461 ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:565 [inline] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:627 [inline] ipvlan_queue_xmit+0xac7/0x16c0 drivers/net/ipvlan/ipvlan_core.c:693 ipvlan_start_xmit+0x4a/0x160 drivers/net/ipvlan/ipvlan_main.c:226 __netdev_start_xmit include/linux/netdevice.h:5368 [inline] netdev_start_xmit include/linux/netdevice.h:5377 [inline] xmit_one net/core/dev.c:3888 [inline] dev_hard_start_xmit+0x2cd/0x830 net/core/dev.c:3904 __dev_queue_xmit+0x14d9/0x3950 net/core/dev.c:4870 dev_queue_xmit include/linux/netdevice.h:3418 [inline] neigh_hh_output include/net/neighbour.h:540 [inline] neigh_output include/net/neighbour.h:554 [inline] ip_finish_output2+0xc68/0x1070 net/ipv4/ip_output.c:237 NF_HOOK_COND include/linux/netfilter.h:307 [inline] ip_output+0x29f/0x450 net/ipv4/ip_output.c:438 dst_output include/net/dst.h:470 [inline] NF_HOOK+0x605/0x660 include/linux/netfilter.h:318 ip_vs_send_or_cont net/netfilter/ipvs/ip_vs_xmit.c:710 [inline] ip_vs_dr_xmit+0x74a/0x9f0 net/netfilter/ipvs/ip_vs_xmit.c:1460 ip_vs_in_hook+0xd88/0x1bf0 net/netfilter/ipvs/ip_vs_core.c:2238 nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline] nf_hook_slow+0xc5/0x220 net/netfilter/core.c:619 nf_hook+0x22a/0x3a0 include/linux/netfilter.h:273 __ip_local_out+0x558/0x6a0 net/ipv4/ip_output.c:120 ip_local_out+0x2a/0x190 net/ipv4/ip_output.c:129 ipvlan_process_v4_outbound+0x44b/0x730 drivers/net/ipvlan/ipvlan_core.c:461 ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:565 [inline] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:627 [inline] ipvlan_queue_xmit+0xac7/0x16c0 drivers/net/ipvlan/ipvlan_core.c:693 ipvlan_start_xmit+0x4a/0x160 drivers/net/ipvlan/ipvlan_main.c:226 __netdev_start_xmit include/linux/netdevice.h:5368 [inline] netdev_start_xmit include/linux/netdevice.h:5377 [inline] xmit_one net/core/dev.c:3888 [inline] dev_hard_start_xmit+0x2cd/0x830 net/core/dev.c:3904 __dev_queue_xmit+0x14d9/0x3950 net/core/dev.c:4870 dev_queue_xmit include/linux/netdevice.h:3418 [inline] neigh_hh_output include/net/neighbour.h:540 [inline] neigh_output include/net/neighbour.h:554 [inline] ip_finish_output2+0xc68/0x1070 net/ipv4/ip_output.c:237 NF_HOOK_COND include/linux/netfilter.h:307 [inline] ip_output+0x29f/0x450 net/ipv4/ip_output.c:438 dst_output include/net/dst.h:470 [inline] NF_HOOK+0x605/0x660 include/linux/netfilter.h:318 ip_vs_send_or_cont net/netfilter/ipvs/ip_vs_xmit.c:710 [inline] ip_vs_dr_xmit+0x74a/0x9f0 net/netfilter/ipvs/ip_vs_xmit.c:1460 ip_vs_in_hook+0xd88/0x1bf0 net/netfilter/ipvs/ip_vs_core.c:2238 nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline] nf_hook_slow+0xc5/0x220 net/netfilter/core.c:619 nf_hook+0x22a/0x3a0 include/linux/netfilter.h:273 __ip_local_out+0x558/0x6a0 net/ipv4/ip_output.c:120 ip_local_out+0x2a/0x190 net/ipv4/ip_output.c:129 ipvlan_process_v4_outbound+0x44b/0x730 drivers/net/ipvlan/ipvlan_core.c:461 ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:565 [inline] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:627 [inline] ipvlan_queue_xmit+0xac7/0x16c0 drivers/net/ipvlan/ipvlan_core.c:693 ipvlan_start_xmit+0x4a/0x160 drivers/net/ipvlan/ipvlan_main.c:226 __netdev_start_xmit include/linux/netdevice.h:5368 [inline] netdev_start_xmit include/linux/netdevice.h:5377 [inline] xmit_one net/core/dev.c:3888 [inline] dev_hard_start_xmit+0x2cd/0x830 net/core/dev.c:3904 __dev_queue_xmit+0x14d9/0x3950 net/core/dev.c:4870 dev_queue_xmit include/linux/netdevice.h:3418 [inline] neigh_hh_output include/net/neighbour.h:540 [inline] neigh_output include/net/neighbour.h:554 [inline] ip_finish_output2+0xc68/0x1070 net/ipv4/ip_output.c:237 NF_HOOK_COND include/linux/netfilter.h:307 [inline] ip_output+0x29f/0x450 net/ipv4/ip_output.c:438 dst_output include/net/dst.h:470 [inline] NF_HOOK+0x605/0x660 include/linux/netfilter.h:318 ip_vs_send_or_cont net/netfilter/ipvs/ip_vs_xmit.c:710 [inline] ip_vs_dr_xmit+0x74a/0x9f0 net/netfilter/ipvs/ip_vs_xmit.c:1460 ip_vs_in_hook+0xd88/0x1bf0 net/netfilter/ipvs/ip_vs_core.c:2238 nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline] nf_hook_slow+0xc5/0x220 net/netfilter/core.c:619 nf_hook+0x22a/0x3a0 include/linux/netfilter.h:273 __ip_local_out+0x558/0x6a0 net/ipv4/ip_output.c:120 ip_local_out+0x2a/0x190 net/ipv4/ip_output.c:129 ipvlan_process_v4_outbound+0x44b/0x730 drivers/net/ipvlan/ipvlan_core.c:461 ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:565 [inline] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:627 [inline] ipvlan_queue_xmit+0xac7/0x16c0 drivers/net/ipvlan/ipvlan_core.c:693 ipvlan_start_xmit+0x4a/0x160 drivers/net/ipvlan/ipvlan_main.c:226 __netdev_start_xmit include/linux/netdevice.h:5368 [inline] netdev_start_xmit include/linux/netdevice.h:5377 [inline] xmit_one net/core/dev.c:3888 [inline] dev_hard_start_xmit+0x2cd/0x830 net/core/dev.c:3904 __dev_queue_xmit+0x14d9/0x3950 net/core/dev.c:4870 dev_queue_xmit include/linux/netdevice.h:3418 [inline] neigh_hh_output include/net/neighbour.h:540 [inline] neigh_output include/net/neighbour.h:554 [inline] ip_finish_output2+0xc68/0x1070 net/ipv4/ip_output.c:237 NF_HOOK_COND include/linux/netfilter.h:307 [inline] ip_output+0x29f/0x450 net/ipv4/ip_output.c:438 dst_output include/net/dst.h:470 [inline] NF_HOOK+0x605/0x660 include/linux/netfilter.h:318 ip_vs_send_or_cont net/netfilter/ipvs/ip_vs_xmit.c:710 [inline] ip_vs_dr_xmit+0x74a/0x9f0 net/netfilter/ipvs/ip_vs_xmit.c:1460 ip_vs_in_hook+0xd88/0x1bf0 net/netfilter/ipvs/ip_vs_core.c:2238 nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline] nf_hook_slow+0xc5/0x220 net/netfilter/core.c:619 nf_hook+0x22a/0x3a0 include/linux/netfilter.h:273 __ip_local_out+0x558/0x6a0 net/ipv4/ip_output.c:120 ip_local_out+0x2a/0x190 net/ipv4/ip_output.c:129 ip_send_skb+0x45/0xc0 net/ipv4/ip_output.c:1510 udp_send_skb+0x7e4/0xf70 net/ipv4/udp.c:1161 udp_sendmsg+0x1937/0x21a0 net/ipv4/udp.c:1443 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] ____sys_sendmsg+0x80a/0x9f0 net/socket.c:2698 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2752 __sys_sendmmsg+0x2e7/0x4e0 net/socket.c:2834 __compat_sys_sendmmsg net/compat.c:360 [inline] __do_compat_sys_sendmmsg net/compat.c:367 [inline] __se_compat_sys_sendmmsg net/compat.c:364 [inline] __ia32_compat_sys_sendmmsg+0xa2/0xc0 net/compat.c:364 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline] __do_fast_syscall_32+0x229/0x6e0 arch/x86/entry/syscall_32.c:307 do_fast_syscall_32+0x33/0x70 arch/x86/entry/syscall_32.c:332 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf7f8301c Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 RSP: 002b:00000000f4fe150c EFLAGS: 00000206 ORIG_RAX: 0000000000000159 RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00000000800005c0 RDX: 0000000000000001 RSI: 0000000020000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:format_decode+0x17/0xe10 lib/vsprintf.c:2666 Code: 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 41 57 41 56 41 55 41 54 53 48 83 ec 28 49 89 d5 49 89 f6 48 89 fd 04 af 20 f6 41 0f b6 de 48 89 df 48 c7 c6 50 d2 17 90 e8 71 b4 RSP: 0018:ffffc90005947ff0 EFLAGS: 00010086 RAX: 1ffff92000b29042 RBX: dffffc0000000000 RCX: 1ffff92000b29040 RDX: ffffc90005948098 RSI: 0000000000000000 RDI: ffffffff8cdd9820 RBP: ffffffff8cdd9820 R08: ffffc90005948217 R09: 0000000000000000 R10: ffffc90005948200 R11: fffff52000b29043 R12: ffffc90005948200 R13: ffffc90005948098 R14: 0000000000000000 R15: ffffffff8cdd9820 FS: 0000000000000000(0000) GS:ffff888125289000(0063) knlGS:00000000f4fe1b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: ffffc90005947fe8 CR3: 000000008f3f2000 CR4: 00000000003526f0 DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000002 DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 00 90 90 90 90 90 add %dl,-0x6f6f6f70(%rax) 8: 90 nop 9: 90 nop a: 90 nop b: 90 nop c: 90 nop d: 90 nop e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 55 push %rbp 14: 41 57 push %r15 16: 41 56 push %r14 18: 41 55 push %r13 1a: 41 54 push %r12 1c: 53 push %rbx 1d: 48 83 ec 28 sub $0x28,%rsp 21: 49 89 d5 mov %rdx,%r13 24: 49 89 f6 mov %rsi,%r14 27: 48 89 fd mov %rdi,%rbp * 2a: e8 04 af 20 f6 call 0xf620af33 <-- trapping instruction 2f: 41 0f b6 de movzbl %r14b,%ebx 33: 48 89 df mov %rbx,%rdi 36: 48 c7 c6 50 d2 17 90 mov $0xffffffff9017d250,%rsi 3d: e8 .byte 0xe8 3e: 71 b4 jno 0xfffffff4