From: syzbot <syzbot+ce2a09d03fdc079a46e9@syzkaller.appspotmail.com>
To: Jason@zx2c4.com, andrew+netdev@lunn.ch, andrew@lunn.ch,
davem@davemloft.net, edumazet@google.com, jason@zx2c4.com,
kuba@kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
pabeni@redhat.com, syzkaller-bugs@googlegroups.com,
wireguard@lists.zx2c4.com
Subject: Re: [syzbot] [wireguard?] [arm?] BUG: workqueue lockup in wg_packet_encrypt_worker
Date: Wed, 23 Sep 2026 16:36:28 -0700 [thread overview]
Message-ID: <6ab4627c.80e1c6cc.1e8e5f.0006.GAE@google.com> (raw)
In-Reply-To: <6aa866b9.a211d2ce.1a5198.029c.GAE@google.com>
syzbot has found a reproducer for the following issue on:
HEAD commit: 7dc79bb50ab6 Merge branch 'for-next/core' into for-kernelci
git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci
console output: https://syzkaller.appspot.com/x/log.txt?x=13047405580000
kernel config: https://syzkaller.appspot.com/x/.config?x=d8d86a9855667113
dashboard link: https://syzkaller.appspot.com/bug?extid=ce2a09d03fdc079a46e9
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
userspace arch: arm64
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17c5cd25580000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/4b09bb2b5517/disk-7dc79bb5.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/9e8dab043921/vmlinux-7dc79bb5.xz
kernel image: https://storage.googleapis.com/syzbot-assets/2151d5f44d15/Image-7dc79bb5.gz.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+ce2a09d03fdc079a46e9@syzkaller.appspotmail.com
BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 38s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x100
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=18 refcnt=19
in-flight: 4789:nsim_fib_event_work for 36s ,9:nsim_fib_event_work for 41s nsim_fib_event_work
pending: 2*nsim_dev_hwstats_traffic_work, 3*psi_avgs_work, vmstat_shepherd, 2*rht_deferred_worker, psi_avgs_work, free_obj_work, drm_fb_helper_damage_work, 4*ovs_dp_masks_rebalance
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=8 refcnt=9
pending: 2*nsim_dev_hwstats_traffic_work, 6*ovs_dp_masks_rebalance
workqueue events_unbound: flags=0x2
pwq 8: cpus=0-1 flags=0x6 nice=0 active=20 refcnt=21
in-flight: 93:cfg80211_wiphy_work for 40s cfg80211_wiphy_work ,12:nsim_dev_trap_report_work for 3s ,5000:nsim_dev_trap_report_work for 5s ,3177:cfg80211_wiphy_work for 40s cfg80211_wiphy_work ,13:cfg80211_wiphy_work for 40s cfg80211_wiphy_work ,3281:cfg80211_wiphy_work for 40s cfg80211_wiphy_work ,3390:cfg80211_wiphy_work for 40s cfg80211_wiphy_work ,1148:linkwatch_event for 39s ,2981:cfg80211_wiphy_work for 35s cfg80211_wiphy_work
pending: nsim_dev_trap_report_work, toggle_allocation_gate, nsim_dev_trap_report_work, flush_memcg_stats_dwork, macvlan_process_broadcast
workqueue events_power_efficient: flags=0x82
pwq 8: cpus=0-1 flags=0x6 nice=0 active=7 refcnt=8
in-flight: 845:neigh_periodic_work for 2s ,40:gc_worker for 21s
pending: wg_ratelimiter_gc_entries, 2*neigh_managed_work, do_cache_clean, fb_flashcursor
workqueue events_dfl_long: flags=0x2
pwq 8: cpus=0-1 flags=0x6 nice=0 active=10 refcnt=11
in-flight: 4998:defense_work_handler for 7s
pending: 9*defense_work_handler
workqueue netns: flags=0x6000a
pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=4
in-flight: 3525:cleanup_net for 42s
workqueue mm_percpu_wq: flags=0x108
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: vmstat_update
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: vmstat_update
workqueue writeback: flags=0x4a
pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=4 MAYDAY
in-flight: 33(RESCUER):wb_workfn for 32s
workqueue mld: flags=0x40108
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=51
in-flight: 4966:mld_ifc_work for 38s
inactive: mld_ifc_work, mld_dad_work, 2*mld_ifc_work, mld_dad_work, mld_ifc_work, 2*mld_dad_work, 7*mld_ifc_work, 2*mld_dad_work, 4*mld_ifc_work, mld_dad_work, 6*mld_ifc_work, 4*mld_dad_work, 4*mld_ifc_work, mld_dad_work, 8*mld_ifc_work, mld_dad_work, mld_ifc_work, mld_dad_work, mld_ifc_work
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=83
pending: mld_dad_work
inactive: 3*mld_dad_work, 7*mld_ifc_work, 3*mld_dad_work, 3*mld_ifc_work, mld_dad_work, 9*mld_ifc_work, mld_dad_work, mld_ifc_work, mld_dad_work, 4*mld_ifc_work, mld_dad_work, 3*mld_ifc_work, 2*mld_dad_work, 4*mld_ifc_work, mld_dad_work, mld_ifc_work, 4*mld_dad_work, 4*mld_ifc_work, 2*mld_dad_work, 6*mld_ifc_work, mld_dad_work, 6*mld_ifc_work, 2*mld_dad_work, 3*mld_ifc_work, mld_dad_work, 2*mld_ifc_work, mld_dad_work, 2*mld_ifc_work, mld_dad_work, mld_ifc_work
workqueue ipv6_addrconf: flags=0x6000a
pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=282
in-flight: 1446:addrconf_dad_work for 41s
inactive: 277*addrconf_dad_work, addrconf_verify_work
workqueue bat_events: flags=0x6000a
pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=51 MAYDAY
in-flight: 2854(RESCUER):batadv_tt_purge for 15s
inactive: 4*batadv_tt_purge, 6*batadv_iv_send_outstanding_bat_ogm_packet, 6*batadv_mcast_mla_update, 6*batadv_iv_send_outstanding_bat_ogm_packet, 6*batadv_purge_orig, 4*batadv_iv_send_outstanding_bat_ogm_packet, batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, batadv_bla_periodic_work, batadv_tt_purge
workqueue wg-kex-wg0: flags=0x6
pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg0: flags=0x128
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=4 refcnt=5
in-flight: 4953:wg_packet_encrypt_worker for 38s ,10:wg_packet_tx_worker for 38s
pending: wg_packet_tx_worker, wg_packet_encrypt_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
workqueue wg-crypt-wg1: flags=0x128
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3
pending: wg_packet_encrypt_worker, wg_packet_tx_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_tx_worker
workqueue wg-kex-wg2: flags=0x124
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_receive_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg2: flags=0x128
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4
pending: wg_packet_decrypt_worker, wg_packet_encrypt_worker, wg_packet_tx_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_tx_worker
workqueue wg-kex-wg0: flags=0x124
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_receive_worker
workqueue wg-kex-wg0: flags=0x6
pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg0: flags=0x128
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_decrypt_worker
workqueue wg-kex-wg1: flags=0x124
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3
in-flight: 866:wg_packet_handshake_receive_worker for 41s
pending: wg_packet_handshake_receive_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
in-flight: 4476:wg_packet_handshake_receive_worker for 0s
workqueue wg-kex-wg1: flags=0x6
pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2
in-flight: 4997:wg_packet_handshake_send_worker for 3s
workqueue wg-crypt-wg1: flags=0x128
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_tx_worker
workqueue wg-kex-wg2: flags=0x124
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_receive_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg2: flags=0x128
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_encrypt_worker
workqueue wg-kex-wg0: flags=0x124
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_receive_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
in-flight: 4960:wg_packet_handshake_receive_worker for 8s
workqueue wg-crypt-wg0: flags=0x128
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3
pending: wg_packet_tx_worker, wg_packet_encrypt_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_tx_worker
workqueue wg-crypt-wg1: flags=0x128
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4
pending: wg_packet_decrypt_worker, wg_packet_encrypt_worker, wg_packet_tx_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=2 refcnt=3
pending: wg_packet_tx_worker, wg_packet_encrypt_worker
workqueue wg-kex-wg0: flags=0x6
pwq 8: cpus=0-1 flags=0x6 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_send_worker
workqueue wg-crypt-wg0: flags=0x128
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4
pending: wg_packet_encrypt_worker, wg_packet_tx_worker, wg_packet_decrypt_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
in-flight: 4835:wg_packet_encrypt_worker for 11s
workqueue wg-kex-wg2: flags=0x124
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_receive_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
in-flight: 26:wg_packet_handshake_receive_worker for 0s
workqueue wg-crypt-wg2: flags=0x128
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3
pending: wg_packet_encrypt_worker, wg_packet_tx_worker
workqueue wg-kex-wg1: flags=0x124
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_receive_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=2 refcnt=3
in-flight: 4999:wg_packet_handshake_receive_worker for 5s
pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg1: flags=0x128
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=3 refcnt=4
pending: wg_packet_decrypt_worker, wg_packet_encrypt_worker, wg_packet_tx_worker
workqueue wg-kex-wg2: flags=0x124
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_receive_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_handshake_receive_worker
workqueue wg-crypt-wg2: flags=0x128
pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3
pending: wg_packet_encrypt_worker, wg_packet_tx_worker
pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
pending: wg_packet_tx_worker
pool 2: cpus=0 node=0 flags=0x0 nice=0 hung=38s workers=7 idle: 4996
pool 6: cpus=1 node=0 flags=0x0 nice=0 hung=0s workers=7 idle: 1091 24
pool 8: cpus=0-1 flags=0x6 nice=0 hung=2s workers=16 manager: 54
Showing backtraces of busy workers in stalled worker pools:
pool 2:
task:kworker/0:4 state:R running task stack:0 pid:4953 tgid:4953 ppid:2 task_flags:0x4208060 flags:0x00000010
Workqueue: wg-crypt-wg0 wg_packet_encrypt_worker
Call trace:
__switch_to+0x2b4/0x6e4 arch/arm64/kernel/process.c:775 (T)
context_switch kernel/sched/core.c:5533 [inline]
__schedule+0x1370/0x2d80 kernel/sched/core.c:7284
preempt_schedule_common+0xd4/0x190 kernel/sched/core.c:7463
preempt_schedule+0x60/0x78 kernel/sched/core.c:7487
__local_bh_enable_ip+0x20c/0x35c kernel/softirq.c:480
__raw_spin_unlock_bh include/linux/spinlock_api_smp.h:237 [inline]
_raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:245
spin_unlock_bh include/linux/spinlock.h:407 [inline]
ptr_ring_consume_bh include/linux/ptr_ring.h:399 [inline]
wg_packet_encrypt_worker+0x25c/0x1290 drivers/net/wireguard/send.c:293
process_one_work kernel/workqueue.c:3396 [inline]
process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3479
worker_thread+0x798/0xbd0 kernel/workqueue.c:3560
kthread+0x304/0x3d4 kernel/kthread.c:436
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:838
pool 2:
task:kworker/0:3 state:R running task stack:0 pid:4789 tgid:4789 ppid:2 task_flags:0x4208060 flags:0x00000010
Workqueue: events nsim_fib_event_work
Call trace:
__switch_to+0x2b4/0x6e4 arch/arm64/kernel/process.c:775 (T)
context_switch kernel/sched/core.c:5533 [inline]
__schedule+0x1370/0x2d80 kernel/sched/core.c:7284
__schedule_loop kernel/sched/core.c:7361 [inline]
schedule+0x13c/0x20c kernel/sched/core.c:7376
schedule_timeout+0x13c/0x28c kernel/time/sleep_timeout.c:99
schedule_timeout_uninterruptible+0x78/0xbc kernel/time/sleep_timeout.c:158
msleep+0x3c/0x68 kernel/time/sleep_timeout.c:318
nsim_fib4_rt_add drivers/net/netdevsim/fib.c:369 [inline]
nsim_fib4_rt_insert drivers/net/netdevsim/fib.c:432 [inline]
nsim_fib4_event drivers/net/netdevsim/fib.c:464 [inline]
nsim_fib_event+0x5564/0x60c4 drivers/net/netdevsim/fib.c:884
nsim_fib_event_work+0x1d8/0x320 drivers/net/netdevsim/fib.c:1493
process_one_work kernel/workqueue.c:3396 [inline]
process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3479
worker_thread+0x798/0xbd0 kernel/workqueue.c:3560
kthread+0x304/0x3d4 kernel/kthread.c:436
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:838
pool 2:
task:kworker/0:5 state:R running task stack:0 pid:4966 tgid:4966 ppid:2 task_flags:0x4208060 flags:0x00000010
Workqueue: mld mld_ifc_work
Call trace:
__switch_to+0x2b4/0x6e4 arch/arm64/kernel/process.c:775 (T)
context_switch kernel/sched/core.c:5533 [inline]
__schedule+0x1370/0x2d80 kernel/sched/core.c:7284
preempt_schedule_common+0xd4/0x190 kernel/sched/core.c:7463
preempt_schedule+0x60/0x78 kernel/sched/core.c:7487
__local_bh_enable_ip+0x20c/0x35c kernel/softirq.c:480
local_bh_enable include/linux/bottom_half.h:33 [inline]
rcu_read_unlock_bh include/linux/rcupdate.h:923 [inline]
__dev_queue_xmit+0x14d4/0x2bc0 net/core/dev.c:4961
dev_queue_xmit include/linux/netdevice.h:3461 [inline]
neigh_hh_output include/net/neighbour.h:544 [inline]
neigh_output include/net/neighbour.h:558 [inline]
ip6_finish_output2+0xd24/0x1b68 net/ipv6/ip6_output.c:138
__ip6_finish_output net/ipv6/ip6_output.c:-1 [inline]
ip6_finish_output+0x230/0x618 net/ipv6/ip6_output.c:221
NF_HOOK_COND include/linux/netfilter.h:314 [inline]
ip6_output+0x2d0/0x644 net/ipv6/ip6_output.c:248
dst_output include/net/dst.h:470 [inline]
NF_HOOK+0x14c/0x464 include/linux/netfilter.h:325
mld_sendpack+0x7f4/0xfec net/ipv6/mcast.c:1890
mld_send_cr net/ipv6/mcast.c:2191 [inline]
mld_ifc_work+0x76c/0x9e4 net/ipv6/mcast.c:2739
process_one_work kernel/workqueue.c:3396 [inline]
process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3479
worker_thread+0x798/0xbd0 kernel/workqueue.c:3560
kthread+0x304/0x3d4 kernel/kthread.c:436
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:838
pool 2:
task:kworker/0:1 state:R running task stack:0 pid:10 tgid:10 ppid:2 task_flags:0x4208060 flags:0x00000010
Workqueue: wg-crypt-wg0 wg_packet_tx_worker
Call trace:
__switch_to+0x2b4/0x6e4 arch/arm64/kernel/process.c:775 (T)
context_switch kernel/sched/core.c:5533 [inline]
__schedule+0x1370/0x2d80 kernel/sched/core.c:7284
preempt_schedule_common+0xd4/0x190 kernel/sched/core.c:7463
preempt_schedule+0x60/0x78 kernel/sched/core.c:7487
__local_bh_enable_ip+0x20c/0x35c kernel/softirq.c:480
local_bh_enable include/linux/bottom_half.h:33 [inline]
rcu_read_unlock_bh include/linux/rcupdate.h:923 [inline]
mod_peer_timer+0x21c/0x25c drivers/net/wireguard/timers.c:38
wg_timers_data_sent+0xb4/0xc8 drivers/net/wireguard/timers.c:151
wg_packet_create_data_done drivers/net/wireguard/send.c:257 [inline]
wg_packet_tx_worker+0x204/0x75c drivers/net/wireguard/send.c:276
process_one_work kernel/workqueue.c:3396 [inline]
process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3479
worker_thread+0x798/0xbd0 kernel/workqueue.c:3560
kthread+0x304/0x3d4 kernel/kthread.c:436
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:838
pool 2:
task:kworker/0:0 state:R running task stack:0 pid:9 tgid:9 ppid:2 task_flags:0x4208060 flags:0x00000010
Workqueue: events nsim_fib_event_work
Call trace:
__switch_to+0x2b4/0x6e4 arch/arm64/kernel/process.c:775 (T)
context_switch kernel/sched/core.c:5533 [inline]
__schedule+0x1370/0x2d80 kernel/sched/core.c:7284
__schedule_loop kernel/sched/core.c:7361 [inline]
schedule+0x13c/0x20c kernel/sched/core.c:7376
schedule_timeout+0x13c/0x28c kernel/time/sleep_timeout.c:99
schedule_timeout_uninterruptible+0x78/0xbc kernel/time/sleep_timeout.c:158
msleep+0x3c/0x68 kernel/time/sleep_timeout.c:318
nsim_fib4_rt_add drivers/net/netdevsim/fib.c:369 [inline]
nsim_fib4_rt_insert drivers/net/netdevsim/fib.c:432 [inline]
nsim_fib4_event drivers/net/netdevsim/fib.c:464 [inline]
nsim_fib_event+0x5564/0x60c4 drivers/net/netdevsim/fib.c:884
nsim_fib_event_work+0x1d8/0x320 drivers/net/netdevsim/fib.c:1493
process_one_work kernel/workqueue.c:3396 [inline]
process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3479
worker_thread+0x798/0xbd0 kernel/workqueue.c:3560
kthread+0x304/0x3d4 kernel/kthread.c:436
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:838
pool 2:
task:kworker/0:2 state:R running task stack:0 pid:866 tgid:866 ppid:2 task_flags:0x4208060 flags:0x00000010
Workqueue: wg-kex-wg1 wg_packet_handshake_receive_worker
Call trace:
__switch_to+0x2b4/0x6e4 arch/arm64/kernel/process.c:775 (T)
context_switch kernel/sched/core.c:5533 [inline]
__schedule+0x1370/0x2d80 kernel/sched/core.c:7284
preempt_schedule_common+0xd4/0x190 kernel/sched/core.c:7463
preempt_schedule+0x60/0x78 kernel/sched/core.c:7487
__local_bh_enable_ip+0x20c/0x35c kernel/softirq.c:480
local_bh_enable include/linux/bottom_half.h:33 [inline]
__alloc_skb+0x1c8/0x610 net/core/skbuff.c:699
alloc_skb include/linux/skbuff.h:1384 [inline]
wg_socket_send_buffer_to_peer+0x44/0x174 drivers/net/wireguard/socket.c:191
wg_packet_send_handshake_response+0x168/0x264 drivers/net/wireguard/send.c:103
wg_receive_handshake_packet drivers/net/wireguard/receive.c:154 [inline]
wg_packet_handshake_receive_worker+0x570/0xcf8 drivers/net/wireguard/receive.c:213
process_one_work kernel/workqueue.c:3396 [inline]
process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3479
worker_thread+0x798/0xbd0 kernel/workqueue.c:3560
kthread+0x304/0x3d4 kernel/kthread.c:436
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:838
---
If you want syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
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prev parent reply other threads:[~2026-09-23 23:36 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-14 21:27 [syzbot] " syzbot
2026-09-23 23:36 ` syzbot [this message]
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