INFO: task syz.1.1299:11006 blocked for more than 143 seconds.
Not tainted 6.13.0-rc2-syzkaller-00031-gf92f4749861b #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.1299 state:D stack:26560 pid:11006 tgid:11005 ppid:5831 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0xe58/0x5ad0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
__mutex_lock_common kernel/locking/mutex.c:665 [inline]
__mutex_lock+0x62b/0xa60 kernel/locking/mutex.c:735
nfsd_nl_listener_set_doit+0xe3/0x1b40 fs/nfsd/nfsctl.c:1964
genl_family_rcv_msg_doit+0x202/0x2f0 net/netlink/genetlink.c:1115
genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]
genl_rcv_msg+0x565/0x800 net/netlink/genetlink.c:1210
netlink_rcv_skb+0x165/0x410 net/netlink/af_netlink.c:2542
genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219
netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline]
netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1347
netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1891
sock_sendmsg_nosec net/socket.c:711 [inline]
__sock_sendmsg net/socket.c:726 [inline]
____sys_sendmsg+0x9ae/0xb40 net/socket.c:2583
___sys_sendmsg+0x135/0x1e0 net/socket.c:2637
__sys_sendmsg+0x16e/0x220 net/socket.c:2669
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff2f197ff19
RSP: 002b:00007ff2f27de058 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007ff2f1b45fa0 RCX: 00007ff2f197ff19
RDX: 0000000000004000 RSI: 00000000200020c0 RDI: 0000000000000006
RBP: 00007ff2f19f3cc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff2f1b45fa0 R15: 00007fff10fd3ae8
Showing all locks held in the system:
5 locks held by kworker/u8:1/12:
1 lock held by khungtaskd/30:
#0: ffffffff8ddba940 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8ddba940 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8ddba940 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x7f/0x390 kernel/locking/lockdep.c:6744
2 locks held by kworker/u8:4/69:
2 locks held by getty/5588:
#0: ffff88803124d0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc90002fde2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0xfba/0x1480 drivers/tty/n_tty.c:2211
2 locks held by syz-executor/5822:
2 locks held by kworker/u8:23/8040:
2 locks held by syz.1.1299/11006:
#0: ffffffff8fb5c410 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218
#1: ffffffff8e1b9808 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0xe3/0x1b40 fs/nfsd/nfsctl.c:1964
2 locks held by syz.1.1299/11007:
#0: ffffffff8fb5c410 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218
#1: ffffffff8e1b9808 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0xe3/0x1b40 fs/nfsd/nfsctl.c:1964
2 locks held by syz-executor/11255:
#0: ffff888034e340e0 (&type->s_umount_key#48){++++}-{4:4}, at: __super_lock fs/super.c:56 [inline]
#0: ffff888034e340e0 (&type->s_umount_key#48){++++}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff888034e340e0 (&type->s_umount_key#48){++++}-{4:4}, at: deactivate_super+0xd6/0x100 fs/super.c:505
#1: ffffffff8e1b9808 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_shutdown_threads+0x5b/0xf0 fs/nfsd/nfssvc.c:625
2 locks held by syz.0.1584/12478:
#0: ffff888020ebc0e0 (&type->s_umount_key#48){++++}-{4:4}, at: __super_lock fs/super.c:56 [inline]
#0: ffff888020ebc0e0 (&type->s_umount_key#48){++++}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff888020ebc0e0 (&type->s_umount_key#48){++++}-{4:4}, at: deactivate_super+0xd6/0x100 fs/super.c:505
#1: ffffffff8e1b9808 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_shutdown_threads+0x5b/0xf0 fs/nfsd/nfssvc.c:625
2 locks held by syz.4.1602/12560:
#0: ffff888034f880e0 (&type->s_umount_key#48){++++}-{4:4}, at: __super_lock fs/super.c:56 [inline]
#0: ffff888034f880e0 (&type->s_umount_key#48){++++}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff888034f880e0 (&type->s_umount_key#48){++++}-{4:4}, at: deactivate_super+0xd6/0x100 fs/super.c:505
#1: ffffffff8e1b9808 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_shutdown_threads+0x5b/0xf0 fs/nfsd/nfssvc.c:625
4 locks held by kworker/0:1/12902:
#0: ffff88801ac80948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x12cd/0x1b30 kernel/workqueue.c:3204
#1: ffffc9000dfdfd80 ((work_completion)(&aux->work)){+.+.}-{0:0}, at: process_one_work+0x8bb/0x1b30 kernel/workqueue.c:3205
#2: ffffffff8de70e68 (pack_mutex){+.+.}-{4:4}, at: bpf_prog_pack_free+0x2c/0x430 kernel/bpf/core.c:991
#3: ffffffff8dc7bb08 (text_mutex){+.+.}-{4:4}, at: text_poke_set+0x9a/0x160 arch/x86/kernel/alternative.c:2093
2 locks held by syz.7.1772/13271:
#0: ffff8880253de0e0 (&type->s_umount_key#48){++++}-{4:4}, at: __super_lock fs/super.c:56 [inline]
#0: ffff8880253de0e0 (&type->s_umount_key#48){++++}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff8880253de0e0 (&type->s_umount_key#48){++++}-{4:4}, at: deactivate_super+0xd6/0x100 fs/super.c:505
#1: ffffffff8e1b9808 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_shutdown_threads+0x5b/0xf0 fs/nfsd/nfssvc.c:625
2 locks held by syz.9.1815/13437:
2 locks held by syz.9.1819/13451:
3 locks held by syz.9.1850/13658:
#0: ffff888040234420 (sb_writers#5){.+.+}-{0:0}, at: get_signal+0x23f3/0x2610 kernel/signal.c:3002
#1: ffff8880291e8fd8 (&sb->s_type->i_mutex_key#12){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline]
#1: ffff8880291e8fd8 (&sb->s_type->i_mutex_key#12){+.+.}-{4:4}, at: shmem_file_write_iter+0x86/0x140 mm/shmem.c:3283
#2: ffffe8ffffc21050 (&acomp_ctx->mutex){+.+.}-{4:4}, at: zswap_compress mm/zswap.c:898 [inline]
#2: ffffe8ffffc21050 (&acomp_ctx->mutex){+.+.}-{4:4}, at: zswap_store_page mm/zswap.c:1426 [inline]
#2: ffffe8ffffc21050 (&acomp_ctx->mutex){+.+.}-{4:4}, at: zswap_store+0x90e/0x25d0 mm/zswap.c:1533
2 locks held by syz.9.1859/13749:
2 locks held by syz.9.1859/13750:
#0: ffff888035016580 (&vma->vm_lock->lock){++++}-{4:4}, at: vma_start_read include/linux/mm.h:716 [inline]
#0: ffff888035016580 (&vma->vm_lock->lock){++++}-{4:4}, at: lock_vma_under_rcu+0x13e/0x980 mm/memory.c:6278
#1: ffffe8ffffc21050 (&acomp_ctx->mutex){+.+.}-{4:4}, at: zswap_compress mm/zswap.c:898 [inline]
#1: ffffe8ffffc21050 (&acomp_ctx->mutex){+.+.}-{4:4}, at: zswap_store_page mm/zswap.c:1426 [inline]
#1: ffffe8ffffc21050 (&acomp_ctx->mutex){+.+.}-{4:4}, at: zswap_store+0x90e/0x25d0 mm/zswap.c:1533
2 locks held by syz.9.1859/13762:
2 locks held by syz.6.1863/13795:
2 locks held by syz.6.1863/13801:
4 locks held by sed/13800:
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc2-syzkaller-00031-gf92f4749861b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:234 [inline]
watchdog+0xf14/0x1240 kernel/hung_task.c:397
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 12 Comm: kworker/u8:1 Not tainted 6.13.0-rc2-syzkaller-00031-gf92f4749861b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:kfence_alloc include/linux/kfence.h:127 [inline]
RIP: 0010:slab_alloc_node mm/slub.c:4137 [inline]
RIP: 0010:__do_kmalloc_node mm/slub.c:4282 [inline]
RIP: 0010:__kmalloc_noprof+0x284/0x4f0 mm/slub.c:4295
Code: 5d 41 5e 41 5f 5d c3 cc cc cc cc c1 ea 03 48 83 fa 17 0f 87 51 02 00 00 0f b6 82 00 e6 82 8d e9 02 fe ff ff 8b 05 0c 35 06 0c <85> c0 0f 8f 5f fe ff ff 4c 89 e7 44 89 ea 4c 89 f6 e8 36 b2 0a 00
RSP: 0018:ffffc900001172d0 EFLAGS: 00000246
RAX: 0000000000000001 RBX: 0000000000000920 RCX: 0000000000000000
RDX: 1ffffffff1bef668 RSI: 0000000000000060 RDI: ffff88801cec6fc4
RBP: ffffc90000117330 R08: 0000000000000003 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000003 R12: ffff88801ac41280
R13: 0000000000000920 R14: 0000000000000048 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9de0e2b378 CR3: 0000000034c38000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
kmalloc_noprof include/linux/slab.h:905 [inline]
kzalloc_noprof include/linux/slab.h:1037 [inline]
cfg80211_inform_single_bss_data+0x5b0/0x1e40 net/wireless/scan.c:2306
cfg80211_inform_bss_data+0x254/0x3e40 net/wireless/scan.c:3189
cfg80211_inform_bss_frame_data+0x252/0x8a0 net/wireless/scan.c:3284
ieee80211_bss_info_update+0x311/0xab0 net/mac80211/scan.c:226
ieee80211_rx_bss_info net/mac80211/ibss.c:1101 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1580 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1956/0x3040 net/mac80211/ibss.c:1607
ieee80211_iface_process_skb net/mac80211/iface.c:1616 [inline]
ieee80211_iface_work+0xc0b/0xf00 net/mac80211/iface.c:1670
cfg80211_wiphy_work+0x3de/0x560 net/wireless/core.c:440
process_one_work+0x958/0x1b30 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244