./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1410837869
<...>
Warning: Permanently added '10.128.0.101' (ED25519) to the list of known hosts.
execve("./syz-executor1410837869", ["./syz-executor1410837869"], 0x7ffcafe8c490 /* 10 vars */) = 0
brk(NULL) = 0x55559040b000
brk(0x55559040bd00) = 0x55559040bd00
arch_prctl(ARCH_SET_FS, 0x55559040b380) = 0
set_tid_address(0x55559040b650) = 5789
set_robust_list(0x55559040b660, 24) = 0
rseq(0x55559040bca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor1410837869", 4096) = 28
getrandom("\x6c\xba\x60\x5f\xb6\xfa\x8c\x24", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x55559040bd00
brk(0x55559042cd00) = 0x55559042cd00
brk(0x55559042d000) = 0x55559042d000
mprotect(0x7f65a8a96000, 16384, PROT_READ) = 0
mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000
mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000
mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5790 attached
, child_tidptr=0x55559040b650) = 5790
[pid 5790] set_robust_list(0x55559040b660, 24) = 0
[pid 5790] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5791 attached
<unfinished ...>
[pid 5789] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid 5790] <... clone resumed>, child_tidptr=0x55559040b650) = 5791
[pid 5791] set_robust_list(0x55559040b660, 24) = 0
./strace-static-x86_64: Process 5792 attached
[pid 5791] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid 5792] set_robust_list(0x55559040b660, 24 <unfinished ...>
[pid 5791] <... prctl resumed>) = 0
[pid 5792] <... set_robust_list resumed>) = 0
[pid 5791] setpgid(0, 0 <unfinished ...>
[pid 5792] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid 5791] <... setpgid resumed>) = 0
[pid 5791] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program
<unfinished ...>
[pid 5789] <... clone resumed>, child_tidptr=0x55559040b650) = 5792
[pid 5791] <... openat resumed>) = 3
[pid 5792] <... clone resumed>, child_tidptr=0x55559040b650) = 5793
[pid 5791] write(3, "1000", 4) = 4
[pid 5791] close(3) = 0
[pid 5791] write(1, "executing program\n", 18) = 18
[pid 5791] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) = 3
[pid 5791] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x2c\x00\x00\x00\x3d\x00\x07\x01\x00\x00\x00\x00\x00\x00\x00\x00\x04\x7c\x00\x00\x04\x00\x08\x80\x0c\x00\x01\x80\x06\x00\x06\x00\x80\x0a\x00\x00\x08\x00\x02\x80\x04\x00\x0b\x80", iov_len=44}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, MSG_NOSIGNAL|MSG_MORE./strace-static-x86_64: Process 5793 attached
<unfinished ...>
[pid 5789] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid 5793] set_robust_list(0x55559040b660, 24 <unfinished ...>
[pid 5789] <... clone resumed>, child_tidptr=0x55559040b650) = 5794
[pid 5793] <... set_robust_list resumed>) = 0
[pid 5789] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid 5793] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5793] setpgid(0, 0) = 0
[pid 5793] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[ 190.064024][ T5791] =====================================================
[ 190.071662][ T5791] BUG: KMSAN: uninit-value in validate_set+0x1a2/0x1640
[ 190.078798][ T5791] validate_set+0x1a2/0x1640
[ 190.083783][ T5791] __ovs_nla_copy_actions+0x2efc/0x61a0
[ 190.089539][ T5791] ovs_nla_copy_actions+0x36b/0x550
[ 190.095075][ T5791] get_flow_actions+0x99/0x1d0
[ 190.100075][ T5791] ovs_nla_init_match_and_action+0x221/0x420
[ 190.106508][ T5791] ovs_flow_cmd_set+0x320/0xec0
executing program
[pid 5793] write(3, "1000", 4 <unfinished ...>
[pid 5789] <... clone resumed>, child_tidptr=0x55559040b650) = 5795
[pid 5793] <... write resumed>) = 4
[pid 5789] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid 5793] close(3) = 0
[ 190.111712][ T5791] genl_rcv_msg+0x1214/0x12c0
[ 190.116651][ T5791] netlink_rcv_skb+0x375/0x650
[ 190.121748][ T5791] genl_rcv+0x40/0x60
[ 190.125976][ T5791] netlink_unicast+0xf52/0x1260
[ 190.131021][ T5791] netlink_sendmsg+0x10da/0x11e0
[ 190.136350][ T5791] __sock_sendmsg+0x30f/0x380
[ 190.141339][ T5791] ____sys_sendmsg+0x890/0xda0
[ 190.146289][ T5791] ___sys_sendmsg+0x28d/0x3c0
[ 190.151143][ T5791] __x64_sys_sendmsg+0x212/0x3c0
[ 190.156370][ T5791] x64_sys_call+0x2e0f/0x3c80
[ 190.161346][ T5791] do_syscall_64+0xcd/0x1e0
[ 190.166035][ T5791] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 190.172284][ T5791]
[ 190.174695][ T5791] Uninit was created at:
[ 190.179146][ T5791] kmem_cache_alloc_node_noprof+0x921/0xe10
[ 190.185342][ T5791] kmalloc_reserve+0x13d/0x4a0
[ 190.190278][ T5791] __alloc_skb+0x366/0x7b0
[ 190.195269][ T5791] netlink_alloc_large_skb+0x1b4/0x280
[ 190.200910][ T5791] netlink_sendmsg+0xa96/0x11e0
[ 190.206053][ T5791] __sock_sendmsg+0x30f/0x380
[ 190.211018][ T5791] ____sys_sendmsg+0x890/0xda0
[ 190.216152][ T5791] ___sys_sendmsg+0x28d/0x3c0
[ 190.221031][ T5791] __x64_sys_sendmsg+0x212/0x3c0
[ 190.226358][ T5791] x64_sys_call+0x2e0f/0x3c80
[ 190.231345][ T5791] do_syscall_64+0xcd/0x1e0
[ 190.236031][ T5791] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 190.242241][ T5791]
[ 190.244696][ T5791] CPU: 0 UID: 0 PID: 5791 Comm: syz-executor141 Not tainted 6.15.0-rc1-syzkaller #0 PREEMPT(undef)
[ 190.255850][ T5791] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 190.266168][ T5791] =====================================================
[ 190.273285][ T5791] Disabling lock debugging due to kernel taint
[ 190.279556][ T5791] Kernel panic - not syncing: kmsan.panic set ...
[ 190.286098][ T5791] CPU: 0 UID: 0 PID: 5791 Comm: syz-executor141 Tainted: G B 6.15.0-rc1-syzkaller #0 PREEMPT(undef)
[ 190.298596][ T5791] Tainted: [B]=BAD_PAGE
[ 190.302830][ T5791] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 190.313019][ T5791] Call Trace:
[ 190.316391][ T5791] <TASK>
[ 190.319411][ T5791] dump_stack_lvl+0x216/0x2d0
[ 190.324243][ T5791] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 190.330222][ T5791] dump_stack+0x1e/0x24
[ 190.334530][ T5791] panic+0x4e5/0xcf0
[ 190.338583][ T5791] ? kmsan_internal_set_shadow_origin+0x60/0x100
[ 190.345183][ T5791] kmsan_report+0x2ca/0x2d0
[ 190.349855][ T5791] ? __msan_warning+0x95/0x120
[ 190.354761][ T5791] ? validate_set+0x1a2/0x1640
[ 190.359673][ T5791] ? __ovs_nla_copy_actions+0x2efc/0x61a0
[ 190.365543][ T5791] ? ovs_nla_copy_actions+0x36b/0x550
[ 190.371050][ T5791] ? get_flow_actions+0x99/0x1d0
[ 190.376147][ T5791] ? ovs_nla_init_match_and_action+0x221/0x420
[ 190.382469][ T5791] ? ovs_flow_cmd_set+0x320/0xec0
[ 190.387651][ T5791] ? genl_rcv_msg+0x1214/0x12c0
[ 190.392660][ T5791] ? netlink_rcv_skb+0x375/0x650
[ 190.397738][ T5791] ? genl_rcv+0x40/0x60
[ 190.402040][ T5791] ? netlink_unicast+0xf52/0x1260
[ 190.407200][ T5791] ? netlink_sendmsg+0x10da/0x11e0
[ 190.412457][ T5791] ? __sock_sendmsg+0x30f/0x380
[ 190.417474][ T5791] ? ____sys_sendmsg+0x890/0xda0
[ 190.422556][ T5791] ? ___sys_sendmsg+0x28d/0x3c0
[ 190.427553][ T5791] ? __x64_sys_sendmsg+0x212/0x3c0
[ 190.432868][ T5791] ? x64_sys_call+0x2e0f/0x3c80
[ 190.437890][ T5791] ? do_syscall_64+0xcd/0x1e0
[ 190.442733][ T5791] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 190.449006][ T5791] ? kmsan_get_metadata+0x13e/0x1c0
[ 190.454376][ T5791] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 190.460351][ T5791] __msan_warning+0x95/0x120
[ 190.465085][ T5791] validate_set+0x1a2/0x1640
[ 190.469806][ T5791] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 190.475779][ T5791] ? kmsan_get_metadata+0x13e/0x1c0
[ 190.481140][ T5791] ? kmsan_get_metadata+0x13e/0x1c0
[ 190.486497][ T5791] ? kmsan_get_metadata+0x13e/0x1c0
[ 190.491855][ T5791] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 190.497884][ T5791] ? __rcu_read_unlock+0x7b/0xe0
[ 190.502999][ T5791] ? kmsan_get_metadata+0x13e/0x1c0
[ 190.508363][ T5791] ? kmsan_internal_set_shadow_origin+0x6c/0x100
[ 190.514859][ T5791] ? kmsan_internal_unpoison_memory+0x14/0x20
[ 190.521099][ T5791] ? _raw_spin_unlock_irqrestore+0x3f/0x60
[ 190.527053][ T5791] ? stack_depot_save_flags+0x6d5/0x7e0
[ 190.532770][ T5791] ? kmsan_get_metadata+0x13e/0x1c0
[ 190.538141][ T5791] ? kmsan_internal_set_shadow_origin+0x6c/0x100
[ 190.544646][ T5791] __ovs_nla_copy_actions+0x2efc/0x61a0
[ 190.550384][ T5791] ? kmsan_internal_unpoison_memory+0x14/0x20
[ 190.556616][ T5791] ? _raw_spin_unlock_irqrestore+0x3f/0x60
[ 190.562564][ T5791] ? stack_depot_save_flags+0x6d5/0x7e0
[ 190.568289][ T5791] ? kmsan_get_metadata+0x13e/0x1c0
[ 190.573671][ T5791] ? kmsan_get_metadata+0x13e/0x1c0
[ 190.579031][ T5791] ? kmsan_internal_set_shadow_origin+0x6c/0x100
[ 190.585514][ T5791] ? kmsan_get_metadata+0x13e/0x1c0
[ 190.590870][ T5791] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 190.596854][ T5791] ? __kmalloc_noprof+0x9b1/0x1260
[ 190.602106][ T5791] ? ovs_nla_copy_actions+0xa0/0x550
[ 190.607564][ T5791] ? kmsan_get_metadata+0x13e/0x1c0
[ 190.612924][ T5791] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 190.618924][ T5791] ovs_nla_copy_actions+0x36b/0x550
[ 190.624282][ T5791] get_flow_actions+0x99/0x1d0
[ 190.629298][ T5791] ovs_nla_init_match_and_action+0x221/0x420
[ 190.635547][ T5791] ovs_flow_cmd_set+0x320/0xec0
[ 190.640684][ T5791] ? kmsan_report+0x270/0x2d0
[ 190.645523][ T5791] ? __pfx_ovs_flow_cmd_set+0x10/0x10
[ 190.651063][ T5791] genl_rcv_msg+0x1214/0x12c0
[ 190.655929][ T5791] ? __pfx_ovs_flow_cmd_set+0x10/0x10
[ 190.661523][ T5791] netlink_rcv_skb+0x375/0x650
[ 190.666457][ T5791] ? __pfx_genl_rcv_msg+0x10/0x10
[ 190.671662][ T5791] ? __pfx_genl_rcv+0x10/0x10
[ 190.676501][ T5791] genl_rcv+0x40/0x60
[ 190.680656][ T5791] netlink_unicast+0xf52/0x1260
[ 190.685683][ T5791] netlink_sendmsg+0x10da/0x11e0
[ 190.690795][ T5791] ? __pfx_netlink_sendmsg+0x10/0x10
[ 190.696231][ T5791] ? __pfx_netlink_sendmsg+0x10/0x10
[ 190.701670][ T5791] __sock_sendmsg+0x30f/0x380
[ 190.706532][ T5791] ____sys_sendmsg+0x890/0xda0
[ 190.711487][ T5791] ___sys_sendmsg+0x28d/0x3c0
[ 190.716352][ T5791] ? stack_depot_save_flags+0x37/0x7e0
[ 190.722054][ T5791] ? kmsan_get_metadata+0x13e/0x1c0
[ 190.727534][ T5791] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 190.733509][ T5791] ? kmsan_get_metadata+0x13e/0x1c0
[ 190.738959][ T5791] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 190.744940][ T5791] __x64_sys_sendmsg+0x212/0x3c0
[ 190.750046][ T5791] ? kmsan_get_metadata+0x13e/0x1c0
[ 190.755444][ T5791] x64_sys_call+0x2e0f/0x3c80
[ 190.760325][ T5791] do_syscall_64+0xcd/0x1e0
[ 190.764984][ T5791] ? clear_bhb_loop+0x25/0x80
[ 190.769799][ T5791] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 190.775843][ T5791] RIP: 0033:0x7f65a8a23c69
[ 190.780383][ T5791] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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 b8 ff ff ff f7 d8 64 89 01 48
[ 190.800582][ T5791] RSP: 002b:00007ffe2adbf528 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 190.809175][ T5791] RAX: ffffffffffffffda RBX: 00002000000007c0 RCX: 00007f65a8a23c69
[ 190.817271][ T5791] RDX: 000000000000c000 RSI: 0000200000000000 RDI: 0000000000000003
[ 190.825357][ T5791] RBP: 00000000000f4240 R08: 00000000000000a0 R09: 00000000000000a0
[ 190.833447][ T5791] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 190.841533][ T5791] R13: 00007ffe2adbf748 R14: 00007ffe2adbf550 R15: 00007ffe2adbf540
[ 190.850001][ T5791] </TASK>
[ 192.444760][ T5791] Shutting down cpus with NMI
[ 192.449945][ T5791] Kernel Offset: disabled
[ 192.454361][ T5791] Rebooting in 86400 seconds..