./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3197686609
<...>
Warning: Permanently added '10.128.0.143' (ED25519) to the list of known hosts.
execve("./syz-executor3197686609", ["./syz-executor3197686609"], 0x7ffdb029ae90 /* 10 vars */) = 0
brk(NULL) = 0x55557abef000
brk(0x55557abefd00) = 0x55557abefd00
arch_prctl(ARCH_SET_FS, 0x55557abef380) = 0
set_tid_address(0x55557abef650) = 5781
set_robust_list(0x55557abef660, 24) = 0
rseq(0x55557abefca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor3197686609", 4096) = 28
getrandom("\xd5\x9c\x36\xcd\xab\xf9\x63\xb2", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x55557abefd00
brk(0x55557ac10d00) = 0x55557ac10d00
brk(0x55557ac11000) = 0x55557ac11000
mprotect(0x7f209015b000, 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, child_tidptr=0x55557abef650) = 5782
./strace-static-x86_64: Process 5782 attached
[pid 5782] set_robust_list(0x55557abef660, 24) = 0
[pid 5782] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5782] setpgid(0, 0) = 0
[pid 5782] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5782] write(3, "1000", 4) = 4
executing program
[pid 5782] close(3) = 0
[pid 5782] write(1, "executing program\n", 18) = 18
[pid 5782] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) = 3
[ 206.022343][ T5782] =====================================================
[ 206.029978][ T5782] BUG: KMSAN: uninit-value in validate_set+0x1a2/0x1640
[ 206.037225][ T5782] validate_set+0x1a2/0x1640
[ 206.042205][ T5782] __ovs_nla_copy_actions+0x2efc/0x61a0
[ 206.048134][ T5782] ovs_nla_copy_actions+0x36b/0x550
[ 206.053513][ T5782] get_flow_actions+0x99/0x1d0
[ 206.058657][ T5782] ovs_nla_init_match_and_action+0x221/0x420
[ 206.064911][ T5782] ovs_flow_cmd_set+0x320/0xec0
[ 206.070152][ T5782] genl_rcv_msg+0x1214/0x12c0
[ 206.075103][ T5782] netlink_rcv_skb+0x375/0x650
[ 206.080289][ T5782] genl_rcv+0x40/0x60
[ 206.084515][ T5782] netlink_unicast+0xf52/0x1260
[ 206.089700][ T5782] netlink_sendmsg+0x10da/0x11e0
[ 206.094866][ T5782] __sock_sendmsg+0x30f/0x380
[ 206.099936][ T5782] ____sys_sendmsg+0x890/0xda0
[ 206.104920][ T5782] ___sys_sendmsg+0x28d/0x3c0
[ 206.109924][ T5782] __x64_sys_sendmsg+0x212/0x3c0
[ 206.115134][ T5782] x64_sys_call+0x2e0f/0x3c80
[ 206.120189][ T5782] do_syscall_64+0xcd/0x1e0
[ 206.124936][ T5782] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 206.131258][ T5782]
[ 206.133690][ T5782] Uninit was created at:
[ 206.138386][ T5782] kmem_cache_alloc_node_noprof+0x921/0xe10
[ 206.144495][ T5782] kmalloc_reserve+0x13d/0x4a0
[ 206.149601][ T5782] __alloc_skb+0x366/0x7b0
[ 206.154199][ T5782] netlink_alloc_large_skb+0x1b4/0x280
[ 206.160099][ T5782] netlink_sendmsg+0xa96/0x11e0
[ 206.165184][ T5782] __sock_sendmsg+0x30f/0x380
[ 206.170270][ T5782] ____sys_sendmsg+0x890/0xda0
[ 206.175249][ T5782] ___sys_sendmsg+0x28d/0x3c0
[ 206.180273][ T5782] __x64_sys_sendmsg+0x212/0x3c0
[ 206.185453][ T5782] x64_sys_call+0x2e0f/0x3c80
[ 206.190586][ T5782] do_syscall_64+0xcd/0x1e0
[ 206.195316][ T5782] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 206.201565][ T5782]
[ 206.204052][ T5782] CPU: 0 UID: 0 PID: 5782 Comm: syz-executor319 Not tainted 6.15.0-rc1-syzkaller #0 PREEMPT(undef)
[ 206.215095][ T5782] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 206.225505][ T5782] =====================================================
[ 206.232666][ T5782] Disabling lock debugging due to kernel taint
[ 206.239081][ T5782] Kernel panic - not syncing: kmsan.panic set ...
[ 206.245716][ T5782] CPU: 0 UID: 0 PID: 5782 Comm: syz-executor319 Tainted: G B 6.15.0-rc1-syzkaller #0 PREEMPT(undef)
[ 206.258239][ T5782] Tainted: [B]=BAD_PAGE
[ 206.262548][ T5782] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 206.272741][ T5782] Call Trace:
[ 206.276112][ T5782] <TASK>
[ 206.279163][ T5782] dump_stack_lvl+0x216/0x2d0
[ 206.284031][ T5782] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 206.290012][ T5782] dump_stack+0x1e/0x24
[ 206.294345][ T5782] panic+0x4e5/0xcf0
[ 206.298464][ T5782] ? kmsan_internal_set_shadow_origin+0x60/0x100
[ 206.304998][ T5782] kmsan_report+0x2ca/0x2d0
[ 206.309674][ T5782] ? __msan_warning+0x95/0x120
[ 206.314584][ T5782] ? validate_set+0x1a2/0x1640
[ 206.319510][ T5782] ? __ovs_nla_copy_actions+0x2efc/0x61a0
[ 206.325406][ T5782] ? ovs_nla_copy_actions+0x36b/0x550
[ 206.330952][ T5782] ? get_flow_actions+0x99/0x1d0
[ 206.336141][ T5782] ? ovs_nla_init_match_and_action+0x221/0x420
[ 206.342508][ T5782] ? ovs_flow_cmd_set+0x320/0xec0
[ 206.347795][ T5782] ? genl_rcv_msg+0x1214/0x12c0
[ 206.352809][ T5782] ? netlink_rcv_skb+0x375/0x650
[ 206.357886][ T5782] ? genl_rcv+0x40/0x60
[ 206.362192][ T5782] ? netlink_unicast+0xf52/0x1260
[ 206.367348][ T5782] ? netlink_sendmsg+0x10da/0x11e0
[ 206.372617][ T5782] ? __sock_sendmsg+0x30f/0x380
[ 206.377663][ T5782] ? ____sys_sendmsg+0x890/0xda0
[ 206.382848][ T5782] ? ___sys_sendmsg+0x28d/0x3c0
[ 206.387848][ T5782] ? __x64_sys_sendmsg+0x212/0x3c0
[ 206.393106][ T5782] ? x64_sys_call+0x2e0f/0x3c80
[ 206.398141][ T5782] ? do_syscall_64+0xcd/0x1e0
[ 206.403030][ T5782] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 206.409379][ T5782] ? kmsan_get_metadata+0x13e/0x1c0
[ 206.414764][ T5782] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 206.420742][ T5782] __msan_warning+0x95/0x120
[ 206.425523][ T5782] validate_set+0x1a2/0x1640
[ 206.430293][ T5782] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 206.436263][ T5782] ? kmsan_get_metadata+0x13e/0x1c0
[ 206.441641][ T5782] ? kmsan_get_metadata+0x13e/0x1c0
[ 206.446998][ T5782] ? kmsan_get_metadata+0x13e/0x1c0
[ 206.452361][ T5782] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 206.458352][ T5782] ? __rcu_read_unlock+0x7b/0xe0
[ 206.463443][ T5782] ? kmsan_get_metadata+0x13e/0x1c0
[ 206.468807][ T5782] ? kmsan_internal_set_shadow_origin+0x6c/0x100
[ 206.475293][ T5782] ? kmsan_internal_unpoison_memory+0x14/0x20
[ 206.481524][ T5782] ? _raw_spin_unlock_irqrestore+0x3f/0x60
[ 206.487496][ T5782] ? stack_depot_save_flags+0x6d5/0x7e0
[ 206.493243][ T5782] ? kmsan_get_metadata+0x13e/0x1c0
[ 206.498640][ T5782] ? kmsan_internal_set_shadow_origin+0x6c/0x100
[ 206.505157][ T5782] __ovs_nla_copy_actions+0x2efc/0x61a0
[ 206.510901][ T5782] ? kmsan_internal_unpoison_memory+0x14/0x20
[ 206.517133][ T5782] ? _raw_spin_unlock_irqrestore+0x3f/0x60
[ 206.523086][ T5782] ? stack_depot_save_flags+0x6d5/0x7e0
[ 206.528809][ T5782] ? kmsan_get_metadata+0x13e/0x1c0
[ 206.534180][ T5782] ? kmsan_get_metadata+0x13e/0x1c0
[ 206.539542][ T5782] ? kmsan_internal_set_shadow_origin+0x6c/0x100
[ 206.546031][ T5782] ? kmsan_get_metadata+0x13e/0x1c0
[ 206.551397][ T5782] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 206.557387][ T5782] ? __kmalloc_noprof+0x9b1/0x1260
[ 206.562641][ T5782] ? ovs_nla_copy_actions+0xa0/0x550
[ 206.568134][ T5782] ? kmsan_get_metadata+0x13e/0x1c0
[ 206.573570][ T5782] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 206.579600][ T5782] ovs_nla_copy_actions+0x36b/0x550
[ 206.585026][ T5782] get_flow_actions+0x99/0x1d0
[ 206.590037][ T5782] ovs_nla_init_match_and_action+0x221/0x420
[ 206.596296][ T5782] ovs_flow_cmd_set+0x320/0xec0
[ 206.601425][ T5782] ? kmsan_report+0x270/0x2d0
[ 206.606301][ T5782] ? __pfx_ovs_flow_cmd_set+0x10/0x10
[ 206.611873][ T5782] genl_rcv_msg+0x1214/0x12c0
[ 206.616761][ T5782] ? __pfx_ovs_flow_cmd_set+0x10/0x10
[ 206.622406][ T5782] netlink_rcv_skb+0x375/0x650
[ 206.627386][ T5782] ? __pfx_genl_rcv_msg+0x10/0x10
[ 206.632706][ T5782] ? __pfx_genl_rcv+0x10/0x10
[ 206.637550][ T5782] genl_rcv+0x40/0x60
[ 206.641714][ T5782] netlink_unicast+0xf52/0x1260
[ 206.646753][ T5782] netlink_sendmsg+0x10da/0x11e0
[ 206.651917][ T5782] ? __pfx_netlink_sendmsg+0x10/0x10
[ 206.657437][ T5782] ? __pfx_netlink_sendmsg+0x10/0x10
[ 206.662910][ T5782] __sock_sendmsg+0x30f/0x380
[ 206.667881][ T5782] ____sys_sendmsg+0x890/0xda0
[ 206.672908][ T5782] ___sys_sendmsg+0x28d/0x3c0
[ 206.677807][ T5782] ? stack_depot_save_flags+0x37/0x7e0
[ 206.683427][ T5782] ? kmsan_get_metadata+0x13e/0x1c0
[ 206.688800][ T5782] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 206.694776][ T5782] ? kmsan_get_metadata+0x13e/0x1c0
[ 206.700186][ T5782] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 206.706228][ T5782] __x64_sys_sendmsg+0x212/0x3c0
[ 206.711384][ T5782] ? kmsan_get_metadata+0x13e/0x1c0
[ 206.716843][ T5782] x64_sys_call+0x2e0f/0x3c80
[ 206.721702][ T5782] do_syscall_64+0xcd/0x1e0
[ 206.726371][ T5782] ? clear_bhb_loop+0x25/0x80
[ 206.731213][ T5782] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 206.737272][ T5782] RIP: 0033:0x7f20900e8b79
[ 206.741807][ T5782] 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
[ 206.761589][ T5782] RSP: 002b:00007ffc96fb6e78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 206.770216][ T5782] RAX: ffffffffffffffda RBX: 00002000000007c0 RCX: 00007f20900e8b79
[ 206.778384][ T5782] RDX: 000000000000c000 RSI: 0000200000000000 RDI: 0000000000000003
[ 206.786476][ T5782] RBP: 00007f209015b5f0 R08: 0000000000000006 R09: 0000000000000006
[ 206.794595][ T5782] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 206.802771][ T5782] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[ 206.810909][ T5782] </TASK>
[ 206.815381][ T5782] Kernel Offset: disabled
[ 206.819836][ T5782] Rebooting in 86400 seconds..