BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 6473, name: syz.2.214
preempt_count: 2, expected: 0
RCU nest depth: 1, expected: 1
3 locks held by syz.2.214/6473:
 #0: ffffffff8e8a5878 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
 #0: ffffffff8e8a5878 (rtnl_mutex){+.+.}-{4:4}, at: dev_ioctl+0x7a4/0x1150 net/core/dev_ioctl.c:841
 #1: ffffffff8d5ae940 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 #1: ffffffff8d5ae940 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:867 [inline]
 #1: ffffffff8d5ae940 (rcu_read_lock){....}-{1:3}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2074 [inline]
 #1: ffffffff8d5ae940 (rcu_read_lock){....}-{1:3}, at: bpf_trace_run10+0x1f2/0x510 kernel/trace/bpf_trace.c:2124
 #2: ffff8880b893fe88 (&s->lock_key#14){+.+.}-{3:3}, at: spin_lock include/linux/spinlock_rt.h:44 [inline]
 #2: ffff8880b893fe88 (&s->lock_key#14){+.+.}-{3:3}, at: ___slab_alloc+0x12f/0x13e0 mm/slub.c:4521
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 1 UID: 0 PID: 6473 Comm: syz.2.214 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 __might_resched+0x32a/0x480 kernel/sched/core.c:8827
 __rt_spin_lock kernel/locking/spinlock_rt.c:48 [inline]
 rt_spin_lock+0xc7/0x3e0 kernel/locking/spinlock_rt.c:57
 spin_lock include/linux/spinlock_rt.h:44 [inline]
 ___slab_alloc+0x12f/0x13e0 mm/slub.c:4521
 __slab_alloc+0xc6/0x1f0 mm/slub.c:4779
 __slab_alloc_node mm/slub.c:4855 [inline]
 kmalloc_nolock_noprof+0x1be/0x440 mm/slub.c:5734
 bpf_stream_elem_alloc kernel/bpf/stream.c:33 [inline]
 __bpf_stream_push_str+0xa8/0x2b0 kernel/bpf/stream.c:50
 bpf_stream_stage_printk+0x14e/0x1c0 kernel/bpf/stream.c:306
 bpf_prog_report_may_goto_violation+0xc4/0x190 kernel/bpf/core.c:3219
 bpf_check_timed_may_goto+0xaa/0xb0 kernel/bpf/core.c:3237
 arch_bpf_timed_may_goto+0x21/0x40 arch/x86/net/bpf_timed_may_goto.S:40
 bpf_prog_6fd842a53d323cc5+0x53/0x5f
 bpf_dispatcher_nop_func include/linux/bpf.h:1378 [inline]
 __bpf_prog_run include/linux/filter.h:723 [inline]
 bpf_prog_run include/linux/filter.h:730 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2075 [inline]
 bpf_trace_run10+0x2e4/0x510 kernel/trace/bpf_trace.c:2124
 __bpf_trace_percpu_alloc_percpu+0x364/0x400 include/trace/events/percpu.h:11
 __do_trace_percpu_alloc_percpu include/trace/events/percpu.h:11 [inline]
 trace_percpu_alloc_percpu include/trace/events/percpu.h:11 [inline]
 pcpu_alloc_noprof+0x1557/0x16d0 mm/percpu.c:1892
 qdisc_alloc+0x307/0x910 net/sched/sch_generic.c:964
 qdisc_create_dflt+0x8e/0x4c0 net/sched/sch_generic.c:1008
 attach_one_default_qdisc net/sched/sch_generic.c:1174 [inline]
 netdev_for_each_tx_queue include/linux/netdevice.h:2680 [inline]
 attach_default_qdiscs net/sched/sch_generic.c:1192 [inline]
 dev_activate+0x378/0x1150 net/sched/sch_generic.c:1251
 __dev_open+0x647/0x800 net/core/dev.c:1692
 __dev_change_flags+0x1f7/0x680 net/core/dev.c:9734
 netif_change_flags+0x88/0x1a0 net/core/dev.c:9797
 dev_change_flags+0x130/0x260 net/core/dev_api.c:68
 dev_ioctl+0x7b4/0x1150 net/core/dev_ioctl.c:842
 sock_do_ioctl+0x22c/0x300 net/socket.c:1268
 sock_ioctl+0x579/0x790 net/socket.c:1375
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xff/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f451c39f749
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f451a606038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f451c5f5fa0 RCX: 00007f451c39f749
RDX: 0000200000002280 RSI: 0000000000008914 RDI: 0000000000000004
RBP: 00007f451c423f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f451c5f6038 R14: 00007f451c5f5fa0 R15: 00007ffe17f68d08
 </TASK>
syzkaller0: entered promiscuous mode
syzkaller0: entered allmulticast mode