------------[ cut here ]------------
======================================================
WARNING: possible circular locking dependency detected
6.8.0-syzkaller-05236-g443574b03387 #0 Not tainted
------------------------------------------------------
syz-executor194/5070 is trying to acquire lock:
ffffffff8e125be0 (console_owner){-...}-{0:0}, at: rcu_try_lock_acquire include/linux/rcupdate.h:303 [inline]
ffffffff8e125be0 (console_owner){-...}-{0:0}, at: srcu_read_lock_nmisafe include/linux/srcu.h:232 [inline]
ffffffff8e125be0 (console_owner){-...}-{0:0}, at: console_srcu_read_lock kernel/printk/printk.c:286 [inline]
ffffffff8e125be0 (console_owner){-...}-{0:0}, at: console_flush_all+0x14a/0xec0 kernel/printk/printk.c:2948

but task is already holding lock:
ffff8880b942c8d8 (hrtimer_bases.lock){-.-.}-{2:2}, at: __run_hrtimer kernel/time/hrtimer.c:1696 [inline]
ffff8880b942c8d8 (hrtimer_bases.lock){-.-.}-{2:2}, at: __hrtimer_run_queues+0x65a/0xd00 kernel/time/hrtimer.c:1756

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #3 (hrtimer_bases.lock){-.-.}-{2:2}:
       lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
       lock_hrtimer_base kernel/time/hrtimer.c:175 [inline]
       hrtimer_start_range_ns+0xdf/0xc60 kernel/time/hrtimer.c:1303
       rpm_suspend+0x1725/0x1c10 drivers/base/power/runtime.c:605
       __pm_runtime_idle+0x131/0x1a0 drivers/base/power/runtime.c:1103
       pm_runtime_put include/linux/pm_runtime.h:460 [inline]
       __device_attach+0x3e5/0x520 drivers/base/dd.c:1048
       bus_probe_device+0x189/0x260 drivers/base/bus.c:532
       device_add+0x8ff/0xca0 drivers/base/core.c:3639
       serdev_controller_add+0x2f/0x4b0 drivers/tty/serdev/core.c:782
       serdev_tty_port_register+0x163/0x260 drivers/tty/serdev/serdev-ttyport.c:302
       tty_port_register_device_attr_serdev+0xe1/0x160 drivers/tty/tty_port.c:191
       serial_core_add_one_port drivers/tty/serial/serial_core.c:3191 [inline]
       serial_core_register_port+0xee0/0x1e30 drivers/tty/serial/serial_core.c:3398
       serial8250_register_8250_port+0x1433/0x1cd0 drivers/tty/serial/8250/8250_core.c:1138
       serial_pnp_probe+0x7d5/0xa20 drivers/tty/serial/8250/8250_pnp.c:478
       pnp_device_probe+0x2ba/0x460 drivers/pnp/driver.c:111
       really_probe+0x29e/0xc50 drivers/base/dd.c:658
       __driver_probe_device+0x1a2/0x3e0 drivers/base/dd.c:800
       driver_probe_device+0x50/0x430 drivers/base/dd.c:830
       __driver_attach+0x45f/0x710 drivers/base/dd.c:1216
       bus_for_each_dev+0x239/0x2b0 drivers/base/bus.c:368
       bus_add_driver+0x347/0x620 drivers/base/bus.c:673
       driver_register+0x23a/0x320 drivers/base/driver.c:246
       serial8250_init+0x9e/0x170 drivers/tty/serial/8250/8250_core.c:1239
       do_one_initcall+0x238/0x830 init/main.c:1241
       do_initcall_level+0x157/0x210 init/main.c:1303
       do_initcalls+0x3f/0x80 init/main.c:1319
       kernel_init_freeable+0x435/0x5d0 init/main.c:1557
       kernel_init+0x1d/0x2a0 init/main.c:1446
       ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
       ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243

-> #2 (&dev->power.lock){-...}-{2:2}:
       lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
       __pm_runtime_resume+0x112/0x180 drivers/base/power/runtime.c:1170
       pm_runtime_get include/linux/pm_runtime.h:408 [inline]
       __uart_start+0x17a/0x3c0 drivers/tty/serial/serial_core.c:148
       uart_write+0x427/0x5c0 drivers/tty/serial/serial_core.c:615
       process_output_block drivers/tty/n_tty.c:574 [inline]
       n_tty_write+0xd6a/0x1230 drivers/tty/n_tty.c:2379
       iterate_tty_write drivers/tty/tty_io.c:1021 [inline]
       file_tty_write+0x54f/0x9b0 drivers/tty/tty_io.c:1096
       call_write_iter include/linux/fs.h:2108 [inline]
       new_sync_write fs/read_write.c:497 [inline]
       vfs_write+0xa84/0xcb0 fs/read_write.c:590
       ksys_write+0x1a0/0x2c0 fs/read_write.c:643
       do_syscall_64+0xfb/0x240
       entry_SYSCALL_64_after_hwframe+0x6d/0x75

-> #1 (&port_lock_key){-.-.}-{2:2}:
       lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
       uart_port_lock_irqsave include/linux/serial_core.h:616 [inline]
       serial8250_console_write+0x1a8/0x1840 drivers/tty/serial/8250/8250_port.c:3403
       console_emit_next_record kernel/printk/printk.c:2890 [inline]
       console_flush_all+0x80b/0xec0 kernel/printk/printk.c:2956
       console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3025
       vprintk_emit+0x509/0x720 kernel/printk/printk.c:2292
       _printk+0xd5/0x120 kernel/printk/printk.c:2317
       register_console+0x70a/0xcd0 kernel/printk/printk.c:3531
       univ8250_console_init+0x49/0x50 drivers/tty/serial/8250/8250_core.c:717
       console_init+0x198/0x680 kernel/printk/printk.c:3677
       start_kernel+0x2d3/0x500 init/main.c:1012
       x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:509
       x86_64_start_kernel+0x99/0xa0 arch/x86/kernel/head64.c:490
       common_startup_64+0x13e/0x147

-> #0 (console_owner){-...}-{0:0}:
       check_prev_add kernel/locking/lockdep.c:3134 [inline]
       check_prevs_add kernel/locking/lockdep.c:3253 [inline]
       validate_chain+0x18cb/0x58e0 kernel/locking/lockdep.c:3869
       __lock_acquire+0x1346/0x1fd0 kernel/locking/lockdep.c:5137
       lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754
       console_lock_spinning_enable kernel/printk/printk.c:1843 [inline]
       console_emit_next_record kernel/printk/printk.c:2884 [inline]
       console_flush_all+0x7ba/0xec0 kernel/printk/printk.c:2956
       console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3025
       vprintk_emit+0x509/0x720 kernel/printk/printk.c:2292
       _printk+0xd5/0x120 kernel/printk/printk.c:2317
       __report_bug lib/bug.c:195 [inline]
       report_bug+0x346/0x500 lib/bug.c:219
       handle_bug+0x3e/0x70 arch/x86/kernel/traps.c:239
       exc_invalid_op+0x1a/0x50 arch/x86/kernel/traps.c:260
       asm_exc_invalid_op+0x1a/0x20 arch/x86/include/asm/idtentry.h:621
       __local_bh_disable_ip+0x1f6/0x220 kernel/softirq.c:307
       __raw_spin_lock_bh include/linux/spinlock_api_smp.h:125 [inline]
       _raw_spin_lock_bh+0x1c/0x50 kernel/locking/spinlock.c:178
       spin_lock_bh include/linux/spinlock.h:356 [inline]
       __sock_map_delete net/core/sock_map.c:414 [inline]
       sock_map_delete_elem+0x97/0x140 net/core/sock_map.c:446
       bpf_prog_2c29ac5cdc6b1842+0x42/0x46
       bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
       __bpf_prog_run include/linux/filter.h:657 [inline]
       bpf_prog_run include/linux/filter.h:664 [inline]
       __bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline]
       bpf_trace_run4+0x25a/0x490 kernel/trace/bpf_trace.c:2422
       __traceiter_mm_page_alloc+0x3a/0x60 include/trace/events/kmem.h:177
       trace_mm_page_alloc include/trace/events/kmem.h:177 [inline]
       __alloc_pages+0x657/0x680 mm/page_alloc.c:4591
       __alloc_pages_node include/linux/gfp.h:238 [inline]
       alloc_pages_node include/linux/gfp.h:261 [inline]
       alloc_slab_page+0x5f/0x160 mm/slub.c:2190
       allocate_slab mm/slub.c:2354 [inline]
       new_slab+0x84/0x2f0 mm/slub.c:2407
       ___slab_alloc+0xd1b/0x13e0 mm/slub.c:3540
       __slab_alloc mm/slub.c:3625 [inline]
       __slab_alloc_node mm/slub.c:3678 [inline]
       slab_alloc_node mm/slub.c:3850 [inline]
       kmem_cache_alloc+0x250/0x350 mm/slub.c:3867
       kmem_cache_zalloc include/linux/slab.h:701 [inline]
       fill_pool lib/debugobjects.c:168 [inline]
       debug_objects_fill_pool+0x63f/0x9b0 lib/debugobjects.c:615
       debug_object_activate+0x135/0x510 lib/debugobjects.c:704
       debug_hrtimer_activate kernel/time/hrtimer.c:423 [inline]
       debug_activate kernel/time/hrtimer.c:478 [inline]
       enqueue_hrtimer+0x30/0x3a0 kernel/time/hrtimer.c:1090
       __run_hrtimer kernel/time/hrtimer.c:1709 [inline]
       __hrtimer_run_queues+0x6b5/0xd00 kernel/time/hrtimer.c:1756
       hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1818
       local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
       __sysvec_apic_timer_interrupt+0x107/0x3a0 arch/x86/kernel/apic/apic.c:1049
       instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
       sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1043
       asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
       on_stack arch/x86/include/asm/stacktrace.h:55 [inline]
       stack_access_ok arch/x86/kernel/unwind_orc.c:393 [inline]
       deref_stack_reg+0x37/0x260 arch/x86/kernel/unwind_orc.c:403
       unwind_next_frame+0x1ab8/0x2a00 arch/x86/kernel/unwind_orc.c:648
       arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25
       stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
       kasan_save_stack mm/kasan/common.c:47 [inline]
       kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
       unpoison_slab_object mm/kasan/common.c:312 [inline]
       __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338
       kasan_slab_alloc include/linux/kasan.h:201 [inline]
       slab_post_alloc_hook mm/slub.c:3813 [inline]
       slab_alloc_node mm/slub.c:3860 [inline]
       kmem_cache_alloc+0x172/0x350 mm/slub.c:3867
       kmem_cache_zalloc include/linux/slab.h:701 [inline]
       fill_pool lib/debugobjects.c:168 [inline]
       debug_objects_fill_pool+0x756/0x9b0 lib/debugobjects.c:615
       __debug_object_init+0xa4/0x400 lib/debugobjects.c:627
       debug_timer_init kernel/time/timer.c:831 [inline]
       debug_init kernel/time/timer.c:879 [inline]
       init_timer_key+0x38/0x2f0 kernel/time/timer.c:923
       rxrpc_alloc_connection+0xed/0x560 net/rxrpc/conn_object.c:65
       rxrpc_prealloc_service_connection+0x26/0x300 net/rxrpc/conn_service.c:123
       rxrpc_service_prealloc_one+0x2cb/0xd40 net/rxrpc/call_accept.c:87
       rxrpc_kernel_charge_accept+0xd2/0x100 net/rxrpc/call_accept.c:475
       afs_charge_preallocation+0xba/0x2c0 fs/afs/rxrpc.c:712
       afs_open_socket+0x459/0x610 fs/afs/rxrpc.c:94
       afs_net_init+0x7b9/0x9a0 fs/afs/main.c:123
       ops_init+0x352/0x610 net/core/net_namespace.c:136
       setup_net+0x515/0xca0 net/core/net_namespace.c:340
       copy_net_ns+0x4e4/0x7b0 net/core/net_namespace.c:505
       create_new_namespaces+0x425/0x7b0 kernel/nsproxy.c:110
       unshare_nsproxy_namespaces+0x124/0x180 kernel/nsproxy.c:228
       ksys_unshare+0x619/0xc10 kernel/fork.c:3322
       __do_sys_unshare kernel/fork.c:3393 [inline]
       __se_sys_unshare kernel/fork.c:3391 [inline]
       __x64_sys_unshare+0x38/0x40 kernel/fork.c:3391
       do_syscall_64+0xfb/0x240
       entry_SYSCALL_64_after_hwframe+0x6d/0x75

other info that might help us debug this:

Chain exists of:
  console_owner --> &dev->power.lock --> hrtimer_bases.lock

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(hrtimer_bases.lock);
                               lock(&dev->power.lock);
                               lock(hrtimer_bases.lock);
  lock(console_owner);

 *** DEADLOCK ***

7 locks held by syz-executor194/5070:
 #0: ffffffff8f3793d0 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c8/0x7b0 net/core/net_namespace.c:501
 #1: ffffffff8e818c60 (fill_pool_map-wait-type-override){+.+.}-{3:3}, at: debug_objects_fill_pool+0x80/0x9b0 lib/debugobjects.c:614
 #2: ffff8880b942c8d8 (hrtimer_bases.lock){-.-.}-{2:2}, at: __run_hrtimer kernel/time/hrtimer.c:1696 [inline]
 #2: ffff8880b942c8d8 (hrtimer_bases.lock){-.-.}-{2:2}, at: __hrtimer_run_queues+0x65a/0xd00 kernel/time/hrtimer.c:1756
 #3: ffffffff8e818c60 (fill_pool_map-wait-type-override){+.+.}-{3:3}, at: debug_objects_fill_pool+0x80/0x9b0 lib/debugobjects.c:614
 #4: ffffffff8e131920 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
 #4: ffffffff8e131920 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
 #4: ffffffff8e131920 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2380 [inline]
 #4: ffffffff8e131920 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run4+0x16e/0x490 kernel/trace/bpf_trace.c:2422
 #5: ffffffff8e00d500 (console_lock){+.+.}-{0:0}, at: _printk+0xd5/0x120 kernel/printk/printk.c:2317
 #6: ffffffff8e00d130 (console_srcu){....}-{0:0}, at: rcu_try_lock_acquire include/linux/rcupdate.h:303 [inline]
 #6: ffffffff8e00d130 (console_srcu){....}-{0:0}, at: srcu_read_lock_nmisafe include/linux/srcu.h:232 [inline]
 #6: ffffffff8e00d130 (console_srcu){....}-{0:0}, at: console_srcu_read_lock kernel/printk/printk.c:286 [inline]
 #6: ffffffff8e00d130 (console_srcu){....}-{0:0}, at: console_flush_all+0x14a/0xec0 kernel/printk/printk.c:2948

stack backtrace:
CPU: 0 PID: 5070 Comm: syz-executor194 Not tainted 6.8.0-syzkaller-05236-g443574b03387 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e7/0x2e0 lib/dump_stack.c:106
 check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2187
 check_prev_add kernel/locking/lockdep.c:3134 [inline]
 check_prevs_add kernel/locking/lockdep.c:3253 [inline]
 validate_chain+0x18cb/0x58e0 kernel/locking/lockdep.c:3869
 __lock_acquire+0x1346/0x1fd0 kernel/locking/lockdep.c:5137
 lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754
 console_lock_spinning_enable kernel/printk/printk.c:1843 [inline]
 console_emit_next_record kernel/printk/printk.c:2884 [inline]
 console_flush_all+0x7ba/0xec0 kernel/printk/printk.c:2956
 console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3025
 vprintk_emit+0x509/0x720 kernel/printk/printk.c:2292
 _printk+0xd5/0x120 kernel/printk/printk.c:2317
 __report_bug lib/bug.c:195 [inline]
 report_bug+0x346/0x500 lib/bug.c:219
 handle_bug+0x3e/0x70 arch/x86/kernel/traps.c:239
 exc_invalid_op+0x1a/0x50 arch/x86/kernel/traps.c:260
 asm_exc_invalid_op+0x1a/0x20 arch/x86/include/asm/idtentry.h:621
RIP: 0010:__local_bh_disable_ip+0x1f6/0x220 kernel/softirq.c:307
Code: 2c 0b 00 65 48 8b 04 25 28 00 00 00 48 3b 84 24 80 00 00 00 75 33 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 90 <0f> 0b 90 e9 99 fe ff ff e8 4d 84 16 0a 41 f7 c6 00 02 00 00 0f 85
RSP: 0018:ffffc90000007560 EFLAGS: 00010006
RAX: 0000000000010003 RBX: ffffffff895fa967 RCX: ffff88807cd2bc00
RDX: ffff88807cd2bc00 RSI: 0000000000000201 RDI: ffffffff895fa967
RBP: ffffc90000007628 R08: ffffffff895fa92d R09: 1ffffffff2598ea0
R10: dffffc0000000000 R11: ffffffffa0001fb0 R12: dffffc0000000000
R13: 1ffff92000000eb0 R14: ffffc900000075c0 R15: 0000000000000201
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:125 [inline]
 _raw_spin_lock_bh+0x1c/0x50 kernel/locking/spinlock.c:178
 spin_lock_bh include/linux/spinlock.h:356 [inline]
 __sock_map_delete net/core/sock_map.c:414 [inline]
 sock_map_delete_elem+0x97/0x140 net/core/sock_map.c:446
 bpf_prog_2c29ac5cdc6b1842+0x42/0x46
 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
 __bpf_prog_run include/linux/filter.h:657 [inline]
 bpf_prog_run include/linux/filter.h:664 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline]
 bpf_trace_run4+0x25a/0x490 kernel/trace/bpf_trace.c:2422
 __traceiter_mm_page_alloc+0x3a/0x60 include/trace/events/kmem.h:177
 trace_mm_page_alloc include/trace/events/kmem.h:177 [inline]
 __alloc_pages+0x657/0x680 mm/page_alloc.c:4591
 __alloc_pages_node include/linux/gfp.h:238 [inline]
 alloc_pages_node include/linux/gfp.h:261 [inline]
 alloc_slab_page+0x5f/0x160 mm/slub.c:2190
 allocate_slab mm/slub.c:2354 [inline]
 new_slab+0x84/0x2f0 mm/slub.c:2407
 ___slab_alloc+0xd1b/0x13e0 mm/slub.c:3540
 __slab_alloc mm/slub.c:3625 [inline]
 __slab_alloc_node mm/slub.c:3678 [inline]
 slab_alloc_node mm/slub.c:3850 [inline]
 kmem_cache_alloc+0x250/0x350 mm/slub.c:3867
 kmem_cache_zalloc include/linux/slab.h:701 [inline]
 fill_pool lib/debugobjects.c:168 [inline]
 debug_objects_fill_pool+0x63f/0x9b0 lib/debugobjects.c:615
 debug_object_activate+0x135/0x510 lib/debugobjects.c:704
 debug_hrtimer_activate kernel/time/hrtimer.c:423 [inline]
 debug_activate kernel/time/hrtimer.c:478 [inline]
 enqueue_hrtimer+0x30/0x3a0 kernel/time/hrtimer.c:1090
 __run_hrtimer kernel/time/hrtimer.c:1709 [inline]
 __hrtimer_run_queues+0x6b5/0xd00 kernel/time/hrtimer.c:1756
 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1818
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0x107/0x3a0 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:on_stack arch/x86/include/asm/stacktrace.h:55 [inline]
RIP: 0010:stack_access_ok arch/x86/kernel/unwind_orc.c:393 [inline]
RIP: 0010:deref_stack_reg+0x37/0x260 arch/x86/kernel/unwind_orc.c:403
Code: 28 49 89 d6 48 89 34 24 48 89 fb 49 bf 00 00 00 00 00 fc ff df e8 89 33 54 00 48 8d 6b 08 49 89 ec 49 c1 ec 03 43 80 3c 3c 00 <74> 08 48 89 ef e8 ef 7a b7 00 48 89 6c 24 10 4c 89 74 24 18 48 8b
RSP: 0018:ffffc90003a7ef28 EFLAGS: 00000246
RAX: ffffffff8140bce7 RBX: ffffc90003a7f060 RCX: ffff88807cd2bc00
RDX: 0000000000000000 RSI: ffffc90003a7fcc8 RDI: ffffc90003a7f060
RBP: ffffc90003a7f068 R08: 0000000000000005 R09: ffffffff8140a8df
R10: 0000000000000003 R11: ffff88807cd2bc00 R12: 1ffff9200074fe0d
R13: dffffc0000000000 R14: ffffc90003a7f0a0 R15: dffffc0000000000
 unwind_next_frame+0x1ab8/0x2a00 arch/x86/kernel/unwind_orc.c:648
 arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 unpoison_slab_object mm/kasan/common.c:312 [inline]
 __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slub.c:3813 [inline]
 slab_alloc_node mm/slub.c:3860 [inline]
 kmem_cache_alloc+0x172/0x350 mm/slub.c:3867
 kmem_cache_zalloc include/linux/slab.h:701 [inline]
 fill_pool lib/debugobjects.c:168 [inline]
 debug_objects_fill_pool+0x756/0x9b0 lib/debugobjects.c:615
 __debug_object_init+0xa4/0x400 lib/debugobjects.c:627
 debug_timer_init kernel/time/timer.c:831 [inline]
 debug_init kernel/time/timer.c:879 [inline]
 init_timer_key+0x38/0x2f0 kernel/time/timer.c:923
 rxrpc_alloc_connection+0xed/0x560 net/rxrpc/conn_object.c:65
 rxrpc_prealloc_service_connection+0x26/0x300 net/rxrpc/conn_service.c:123
 rxrpc_service_prealloc_one+0x2cb/0xd40 net/rxrpc/call_accept.c:87
 rxrpc_kernel_charge_accept+0xd2/0x100 net/rxrpc/call_accept.c:475
 afs_charge_preallocation+0xba/0x2c0 fs/afs/rxrpc.c:712
 afs_open_socket+0x459/0x610 fs/afs/rxrpc.c:94
 afs_net_init+0x7b9/0x9a0 fs/afs/main.c:123
 ops_init+0x352/0x610 net/core/net_namespace.c:136
 setup_net+0x515/0xca0 net/core/net_namespace.c:340
 copy_net_ns+0x4e4/0x7b0 net/core/net_namespace.c:505
 create_new_namespaces+0x425/0x7b0 kernel/nsproxy.c:110
 unshare_nsproxy_namespaces+0x124/0x180 kernel/nsproxy.c:228
 ksys_unshare+0x619/0xc10 kernel/fork.c:3322
 __do_sys_unshare kernel/fork.c:3393 [inline]
 __se_sys_unshare kernel/fork.c:3391 [inline]
 __x64_sys_unshare+0x38/0x40 kernel/fork.c:3391
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f6b3f2f76e7
Code: 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe28345708 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007ffe28345718 RCX: 00007f6b3f2f76e7
RDX: 00007f6b3f2f62f9 RSI: 00007ffe28345740 RDI: 0000000040000000
RBP: 00000000000f4240 R08: 000055558254f610 R09: 000055558254f610
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6b3f3695f0
R13: 00007ffe28345948 R14: 0000000000000001 R15: 00007ffe28345720
 </TASK>
WARNING: CPU: 0 PID: 5070 at kernel/softirq.c:307 __local_bh_disable_ip+0x1f6/0x220 kernel/softirq.c:307
Modules linked in:
CPU: 0 PID: 5070 Comm: syz-executor194 Not tainted 6.8.0-syzkaller-05236-g443574b03387 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:__local_bh_disable_ip+0x1f6/0x220 kernel/softirq.c:307
Code: 2c 0b 00 65 48 8b 04 25 28 00 00 00 48 3b 84 24 80 00 00 00 75 33 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 90 <0f> 0b 90 e9 99 fe ff ff e8 4d 84 16 0a 41 f7 c6 00 02 00 00 0f 85
RSP: 0018:ffffc90000007560 EFLAGS: 00010006
RAX: 0000000000010003 RBX: ffffffff895fa967 RCX: ffff88807cd2bc00
RDX: ffff88807cd2bc00 RSI: 0000000000000201 RDI: ffffffff895fa967
RBP: ffffc90000007628 R08: ffffffff895fa92d R09: 1ffffffff2598ea0
R10: dffffc0000000000 R11: ffffffffa0001fb0 R12: dffffc0000000000
R13: 1ffff92000000eb0 R14: ffffc900000075c0 R15: 0000000000000201
FS:  000055558254e380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055558254eca8 CR3: 0000000070114000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:125 [inline]
 _raw_spin_lock_bh+0x1c/0x50 kernel/locking/spinlock.c:178
 spin_lock_bh include/linux/spinlock.h:356 [inline]
 __sock_map_delete net/core/sock_map.c:414 [inline]
 sock_map_delete_elem+0x97/0x140 net/core/sock_map.c:446
 bpf_prog_2c29ac5cdc6b1842+0x42/0x46
 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
 __bpf_prog_run include/linux/filter.h:657 [inline]
 bpf_prog_run include/linux/filter.h:664 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline]
 bpf_trace_run4+0x25a/0x490 kernel/trace/bpf_trace.c:2422
 __traceiter_mm_page_alloc+0x3a/0x60 include/trace/events/kmem.h:177
 trace_mm_page_alloc include/trace/events/kmem.h:177 [inline]
 __alloc_pages+0x657/0x680 mm/page_alloc.c:4591
 __alloc_pages_node include/linux/gfp.h:238 [inline]
 alloc_pages_node include/linux/gfp.h:261 [inline]
 alloc_slab_page+0x5f/0x160 mm/slub.c:2190
 allocate_slab mm/slub.c:2354 [inline]
 new_slab+0x84/0x2f0 mm/slub.c:2407
 ___slab_alloc+0xd1b/0x13e0 mm/slub.c:3540
 __slab_alloc mm/slub.c:3625 [inline]
 __slab_alloc_node mm/slub.c:3678 [inline]
 slab_alloc_node mm/slub.c:3850 [inline]
 kmem_cache_alloc+0x250/0x350 mm/slub.c:3867
 kmem_cache_zalloc include/linux/slab.h:701 [inline]
 fill_pool lib/debugobjects.c:168 [inline]
 debug_objects_fill_pool+0x63f/0x9b0 lib/debugobjects.c:615
 debug_object_activate+0x135/0x510 lib/debugobjects.c:704
 debug_hrtimer_activate kernel/time/hrtimer.c:423 [inline]
 debug_activate kernel/time/hrtimer.c:478 [inline]
 enqueue_hrtimer+0x30/0x3a0 kernel/time/hrtimer.c:1090
 __run_hrtimer kernel/time/hrtimer.c:1709 [inline]
 __hrtimer_run_queues+0x6b5/0xd00 kernel/time/hrtimer.c:1756
 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1818
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0x107/0x3a0 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:on_stack arch/x86/include/asm/stacktrace.h:55 [inline]
RIP: 0010:stack_access_ok arch/x86/kernel/unwind_orc.c:393 [inline]
RIP: 0010:deref_stack_reg+0x37/0x260 arch/x86/kernel/unwind_orc.c:403
Code: 28 49 89 d6 48 89 34 24 48 89 fb 49 bf 00 00 00 00 00 fc ff df e8 89 33 54 00 48 8d 6b 08 49 89 ec 49 c1 ec 03 43 80 3c 3c 00 <74> 08 48 89 ef e8 ef 7a b7 00 48 89 6c 24 10 4c 89 74 24 18 48 8b
RSP: 0018:ffffc90003a7ef28 EFLAGS: 00000246
RAX: ffffffff8140bce7 RBX: ffffc90003a7f060 RCX: ffff88807cd2bc00
RDX: 0000000000000000 RSI: ffffc90003a7fcc8 RDI: ffffc90003a7f060
RBP: ffffc90003a7f068 R08: 0000000000000005 R09: ffffffff8140a8df
R10: 0000000000000003 R11: ffff88807cd2bc00 R12: 1ffff9200074fe0d
R13: dffffc0000000000 R14: ffffc90003a7f0a0 R15: dffffc0000000000
 unwind_next_frame+0x1ab8/0x2a00 arch/x86/kernel/unwind_orc.c:648
 arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 unpoison_slab_object mm/kasan/common.c:312 [inline]
 __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slub.c:3813 [inline]
 slab_alloc_node mm/slub.c:3860 [inline]
 kmem_cache_alloc+0x172/0x350 mm/slub.c:3867
 kmem_cache_zalloc include/linux/slab.h:701 [inline]
 fill_pool lib/debugobjects.c:168 [inline]
 debug_objects_fill_pool+0x756/0x9b0 lib/debugobjects.c:615
 __debug_object_init+0xa4/0x400 lib/debugobjects.c:627
 debug_timer_init kernel/time/timer.c:831 [inline]
 debug_init kernel/time/timer.c:879 [inline]
 init_timer_key+0x38/0x2f0 kernel/time/timer.c:923
 rxrpc_alloc_connection+0xed/0x560 net/rxrpc/conn_object.c:65
 rxrpc_prealloc_service_connection+0x26/0x300 net/rxrpc/conn_service.c:123
 rxrpc_service_prealloc_one+0x2cb/0xd40 net/rxrpc/call_accept.c:87
 rxrpc_kernel_charge_accept+0xd2/0x100 net/rxrpc/call_accept.c:475
 afs_charge_preallocation+0xba/0x2c0 fs/afs/rxrpc.c:712
 afs_open_socket+0x459/0x610 fs/afs/rxrpc.c:94
 afs_net_init+0x7b9/0x9a0 fs/afs/main.c:123
 ops_init+0x352/0x610 net/core/net_namespace.c:136
 setup_net+0x515/0xca0 net/core/net_namespace.c:340
 copy_net_ns+0x4e4/0x7b0 net/core/net_namespace.c:505
 create_new_namespaces+0x425/0x7b0 kernel/nsproxy.c:110
 unshare_nsproxy_namespaces+0x124/0x180 kernel/nsproxy.c:228
 ksys_unshare+0x619/0xc10 kernel/fork.c:3322
 __do_sys_unshare kernel/fork.c:3393 [inline]
 __se_sys_unshare kernel/fork.c:3391 [inline]
 __x64_sys_unshare+0x38/0x40 kernel/fork.c:3391
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f6b3f2f76e7
Code: 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe28345708 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007ffe28345718 RCX: 00007f6b3f2f76e7
RDX: 00007f6b3f2f62f9 RSI: 00007ffe28345740 RDI: 0000000040000000
RBP: 00000000000f4240 R08: 000055558254f610 R09: 000055558254f610
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6b3f3695f0
R13: 00007ffe28345948 R14: 0000000000000001 R15: 00007ffe28345720
 </TASK>
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	49 89 d6             	mov    %rdx,%r14
   3:	48 89 34 24          	mov    %rsi,(%rsp)
   7:	48 89 fb             	mov    %rdi,%rbx
   a:	49 bf 00 00 00 00 00 	movabs $0xdffffc0000000000,%r15
  11:	fc ff df
  14:	e8 89 33 54 00       	call   0x5433a2
  19:	48 8d 6b 08          	lea    0x8(%rbx),%rbp
  1d:	49 89 ec             	mov    %rbp,%r12
  20:	49 c1 ec 03          	shr    $0x3,%r12
  24:	43 80 3c 3c 00       	cmpb   $0x0,(%r12,%r15,1)
* 29:	74 08                	je     0x33 <-- trapping instruction
  2b:	48 89 ef             	mov    %rbp,%rdi
  2e:	e8 ef 7a b7 00       	call   0xb77b22
  33:	48 89 6c 24 10       	mov    %rbp,0x10(%rsp)
  38:	4c 89 74 24 18       	mov    %r14,0x18(%rsp)
  3d:	48                   	rex.W
  3e:	8b                   	.byte 0x8b