Warning: Permanently added '10.128.1.108' (ED25519) to the list of known hosts. 2023/11/23 23:55:41 ignoring optional flag "sandboxArg"="0" 2023/11/23 23:55:41 parsed 1 programs 2023/11/23 23:55:41 executed programs: 0 [ 44.421897][ T3062] cgroup: Unknown subsys name 'net' [ 44.429692][ T3062] cgroup: Unknown subsys name 'rlimit' [ 46.145727][ T20] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 46.153961][ T20] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 46.161963][ T1729] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 46.171034][ T7] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 46.179288][ T7] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 46.186924][ T1729] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 46.224124][ T3442] [ 46.226470][ T3442] ============================================ [ 46.232809][ T3442] WARNING: possible recursive locking detected [ 46.239120][ T3442] 5.7.0-rc2-syzkaller #0 Not tainted [ 46.245568][ T3442] -------------------------------------------- [ 46.251889][ T3442] syz-executor.0/3442 is trying to acquire lock: [ 46.258743][ T3442] ffff888226e35398 (_xmit_ETHER){+.-.}-{2:2}, at: sch_direct_xmit+0x143/0x380 [ 46.268387][ T3442] [ 46.268387][ T3442] but task is already holding lock: [ 46.276013][ T3442] ffff88822e21d898 (_xmit_ETHER){+.-.}-{2:2}, at: sch_direct_xmit+0x143/0x380 [ 46.285123][ T3442] [ 46.285123][ T3442] other info that might help us debug this: [ 46.294039][ T3442] Possible unsafe locking scenario: [ 46.294039][ T3442] [ 46.301691][ T3442] CPU0 [ 46.304956][ T3442] ---- [ 46.308569][ T3442] lock(_xmit_ETHER); [ 46.313386][ T3442] lock(_xmit_ETHER); [ 46.317540][ T3442] [ 46.317540][ T3442] *** DEADLOCK *** [ 46.317540][ T3442] [ 46.326118][ T3442] May be due to missing lock nesting notation [ 46.326118][ T3442] [ 46.335279][ T3442] 9 locks held by syz-executor.0/3442: [ 46.341107][ T3442] #0: ffffffff836813a0 (rcu_read_lock_bh){....}-{1:2}, at: ip_finish_output2+0x114/0x1030 [ 46.351723][ T3442] #1: ffffffff836813a0 (rcu_read_lock_bh){....}-{1:2}, at: __dev_queue_xmit+0x81/0x1580 [ 46.362160][ T3442] #2: ffff888226e33258 (&sch->seqlock){+...}-{2:2}, at: __dev_queue_xmit+0x8b4/0x1580 [ 46.373152][ T3442] #3: ffff888226e33148 (dev->qdisc_running_key ?: &qdisc_running_key){+...}-{0:0}, at: neigh_resolve_output+0x2ed/0x310 [ 46.386048][ T3442] #4: ffff88822e21d898 (_xmit_ETHER){+.-.}-{2:2}, at: sch_direct_xmit+0x143/0x380 [ 46.395764][ T3442] #5: ffffffff836813a0 (rcu_read_lock_bh){....}-{1:2}, at: ip_finish_output2+0x114/0x1030 [ 46.405991][ T3442] #6: ffffffff836813a0 (rcu_read_lock_bh){....}-{1:2}, at: __dev_queue_xmit+0x81/0x1580 [ 46.416126][ T3442] #7: ffff888226e68258 (&sch->seqlock){+...}-{2:2}, at: __dev_queue_xmit+0x8b4/0x1580 [ 46.426120][ T3442] #8: ffff888226e68148 (dev->qdisc_running_key ?: &qdisc_running_key){+...}-{0:0}, at: neigh_resolve_output+0x2ed/0x310 [ 46.440598][ T3442] [ 46.440598][ T3442] stack backtrace: [ 46.446929][ T3442] CPU: 1 PID: 3442 Comm: syz-executor.0 Not tainted 5.7.0-rc2-syzkaller #0 [ 46.456667][ T3442] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 [ 46.468295][ T3442] Call Trace: [ 46.472292][ T3442] dump_stack+0xcd/0x12e [ 46.477185][ T3442] __lock_acquire.cold.68+0x12d/0x2cc [ 46.482641][ T3442] lock_acquire+0x9e/0x300 [ 46.487216][ T3442] ? sch_direct_xmit+0x143/0x380 [ 46.492826][ T3442] ? validate_xmit_skb.isra.143+0x2f8/0x500 [ 46.499019][ T3442] _raw_spin_lock+0x20/0x30 [ 46.503913][ T3442] ? sch_direct_xmit+0x143/0x380 [ 46.509026][ T3442] sch_direct_xmit+0x143/0x380 [ 46.514329][ T3442] __qdisc_run+0x215/0x890 [ 46.519093][ T3442] __dev_queue_xmit+0x951/0x1580 [ 46.524454][ T3442] ? lock_acquire+0x9e/0x300 [ 46.529047][ T3442] ? ip_finish_output2+0x3e9/0x1030 [ 46.534519][ T3442] ? skb_push+0x39/0x50 [ 46.538658][ T3442] ? neigh_resolve_output+0x2ed/0x310 [ 46.544801][ T3442] neigh_resolve_output+0x2ed/0x310 [ 46.550083][ T3442] ip_finish_output2+0x3e9/0x1030 [ 46.555401][ T3442] ? nf_nat_ipv4_fn+0x82/0xf0 [ 46.560067][ T3442] ? __ip_finish_output+0x345/0x500 [ 46.565497][ T3442] __ip_finish_output+0x345/0x500 [ 46.570595][ T3442] ip_output+0xb3/0x390 [ 46.574899][ T3442] ? __ip_finish_output+0x500/0x500 [ 46.580174][ T3442] ip_local_out+0x6b/0xc0 [ 46.584683][ T3442] iptunnel_xmit+0x1ee/0x2b0 [ 46.589454][ T3442] ip_tunnel_xmit+0x982/0x1610 [ 46.594205][ T3442] erspan_xmit+0x40e/0xee0 [ 46.598885][ T3442] dev_hard_start_xmit+0xd6/0x440 [ 46.604005][ T3442] sch_direct_xmit+0x17c/0x380 [ 46.609026][ T3442] __qdisc_run+0x215/0x890 [ 46.614124][ T3442] __dev_queue_xmit+0x951/0x1580 [ 46.619557][ T3442] ? lock_acquire+0x9e/0x300 [ 46.624298][ T3442] ? ip_finish_output2+0x3e9/0x1030 [ 46.629888][ T3442] ? skb_push+0x39/0x50 [ 46.634377][ T3442] ? neigh_resolve_output+0x2ed/0x310 [ 46.640499][ T3442] neigh_resolve_output+0x2ed/0x310 [ 46.645933][ T3442] ip_finish_output2+0x3e9/0x1030 [ 46.651338][ T3442] ? nf_nat_ipv4_fn+0x82/0xf0 [ 46.656348][ T3442] ? __ip_finish_output+0x345/0x500 [ 46.662339][ T3442] __ip_finish_output+0x345/0x500 [ 46.667841][ T3442] ip_output+0xb3/0x390 [ 46.672262][ T3442] ? __ip_finish_output+0x500/0x500 [ 46.677494][ T3442] ip_local_out+0x6b/0xc0 [ 46.682127][ T3442] ip_send_skb+0x1c/0x80 [ 46.686722][ T3442] udp_send_skb.isra.51+0x226/0x5e0 [ 46.691913][ T3442] udp_sendmsg+0x1082/0x1700 [ 46.696496][ T3442] ? ip_reply_glue_bits+0x80/0x80 [ 46.701625][ T3442] ? udpv6_sendmsg+0xb17/0x1730 [ 46.706648][ T3442] ? ip4_string+0x188/0x210 [ 46.711250][ T3442] udpv6_sendmsg+0xb17/0x1730 [ 46.716158][ T3442] ? __lock_acquire+0x432/0x1730 [ 46.721388][ T3442] ? __lock_acquire+0x432/0x1730 [ 46.726696][ T3442] ? lock_acquire+0x9e/0x300 [ 46.732006][ T3442] ? __might_fault+0xa/0x10 [ 46.736489][ T3442] ? tomoyo_socket_sendmsg_permission+0x74/0x1c0 [ 46.743230][ T3442] ? inet6_sendmsg+0x4c/0x60 [ 46.748070][ T3442] inet6_sendmsg+0x4c/0x60 [ 46.752598][ T3442] sock_sendmsg+0x52/0x70 [ 46.757307][ T3442] ____sys_sendmsg+0x1a6/0x390 [ 46.762905][ T3442] ___sys_sendmsg+0x95/0xd0 [ 46.767638][ T3442] ? expand_files.part.11+0x430/0x430 [ 46.773620][ T3442] ? __fget_files+0x1bb/0x320 [ 46.778455][ T3442] ? __fget_files+0x1d8/0x320 [ 46.783499][ T3442] ? __fget_light+0x9f/0xe0 [ 46.788354][ T3442] __sys_sendmmsg+0x104/0x330 [ 46.793279][ T3442] ? __context_tracking_exit.part.6+0x82/0x1b0 [ 46.799839][ T3442] __x64_sys_sendmmsg+0x24/0x30 [ 46.804865][ T3442] do_syscall_64+0x91/0x300 [ 46.809424][ T3442] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 46.815577][ T3442] RIP: 0033:0x7f6d1a2d78a9 [ 46.819981][ T3442] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 [ 46.840727][ T3442] RSP: 002b:00007f6d1a25d0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 46.849302][ T3442] RAX: ffffffffffffffda RBX: 00007f6d1a3e9f60 RCX: 00007f6d1a2d78a9 [ 46.857479][ T3442] RDX: 0000000000000001 RSI: 0000000020004d80 RDI: 0000000000000004 [ 46.865902][ T3442] RBP: 00007f6d1a333074 R08: 0000000000000000 R09: 0000000000000000 [ 46.874794][ T3442] R10: 0000000004000000 R11: 0000000000000246 R12: 0000000000000000 [ 46.882967][ T3442] R13: 0000000000000006 R14: 00007f6d1a3e9f60 R15: 00007ffc410940d8 [ 46.894418][ T3442] syz-executor.0 (3442) used greatest stack depth: 10208 bytes left 2023/11/23 23:55:46 executed programs: 415 2023/11/23 23:55:51 executed programs: 1240