BUG: unable to handle page fault for address: fffffbfffb11e000
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 23ffe4067 P4D 23ffe4067 PUD 23ffe3067 PMD 0
Oops: Oops: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 0 UID: 0 PID: 1074 Comm: kworker/u8:6 Not tainted 6.12.0-rc1-next-20241003-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: netns cleanup_net
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:87 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:104 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:129 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:161 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x82/0x290 mm/kasan/generic.c:189
Code: 01 00 00 00 00 fc ff df 4f 8d 3c 31 4c 89 fd 4c 29 dd 48 83 fd 10 7f 29 48 85 ed 0f 84 3e 01 00 00 4c 89 cd 48 f7 d5 48 01 dd <41> 80 3b 00 0f 85 c9 01 00 00 49 ff c3 48 ff c5 75 ee e9 1e 01 00
RSP: 0018:ffffc90000007998 EFLAGS: 00010286
RAX: 0000000000000001 RBX: 1ffffffffb11e000 RCX: ffffffff81cf410f
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffffd88f0000
RBP: ffffffffffffffff R08: ffffffffd88f0007 R09: 1ffffffffb11e000
R10: dffffc0000000000 R11: fffffbfffb11e000 R12: ffffffffd88f0000
R13: 0000000000000008 R14: dffffc0000000001 R15: fffffbfffb11e001
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffbfffb11e000 CR3: 00000000694b4000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_read include/linux/instrumented.h:26 [inline]
copy_from_kernel_nofault+0x6f/0x2f0 mm/maccess.c:35
bpf_probe_read_kernel_common include/linux/bpf.h:2960 [inline]
____bpf_probe_read_compat kernel/trace/bpf_trace.c:294 [inline]
bpf_probe_read_compat+0x10f/0x180 kernel/trace/bpf_trace.c:287
bpf_prog_737a72641ece9b26+0x43/0x45
bpf_dispatcher_nop_func include/linux/bpf.h:1257 [inline]
__bpf_prog_run include/linux/filter.h:701 [inline]
bpf_prog_run include/linux/filter.h:708 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2318 [inline]
bpf_trace_run2+0x2ec/0x540 kernel/trace/bpf_trace.c:2359
trace_kfree include/trace/events/kmem.h:94 [inline]
kfree+0x378/0x420 mm/slub.c:4723
slab_free_after_rcu_debug+0x62/0x280 mm/slub.c:4625
rcu_do_batch kernel/rcu/tree.c:2567 [inline]
rcu_core+0xaaa/0x17a0 kernel/rcu/tree.c:2823
handle_softirqs+0x2c5/0x980 kernel/softirq.c:554
__do_softirq kernel/softirq.c:588 [inline]
invoke_softirq kernel/softirq.c:428 [inline]
__irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1037 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1037
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:preempt_schedule_irq+0xf6/0x1c0 kernel/sched/core.c:6997
Code: 89 f5 49 c1 ed 03 eb 0d 48 f7 03 08 00 00 00 0f 84 8b 00 00 00 bf 01 00 00 00 e8 45 30 93 f5 e8 50 98 cc f5 fb bf 01 00 00 00 85 ac ff ff 43 80 7c 3d 00 00 74 08 4c 89 f7 e8 35 ba 2e f6 48
RSP: 0018:ffffc90003e675e0 EFLAGS: 00000282
RAX: b38e563f09993600 RBX: 1ffff920007ccec4 RCX: ffffffff8170b62a
RDX: dffffc0000000000 RSI: ffffffff8c0acac0 RDI: 0000000000000001
RBP: ffffc90003e676a0 R08: ffffffff942d280f R09: 1ffffffff285a501
R10: dffffc0000000000 R11: fffffbfff285a502 R12: 1ffff920007ccebc
R13: 1ffff920007ccec0 R14: ffffc90003e67600 R15: dffffc0000000000
irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707
RIP: 0010:lockdep_unregister_key+0x56d/0x610 kernel/locking/lockdep.c:6569
Code: 28 94 48 c7 c6 60 94 70 81 e8 0f 46 0a 00 e8 7a 5a 0a 00 e9 e5 fb ff ff e8 40 44 57 0a 41 f7 c7 00 02 00 00 74 d0 fb 45 84 f6 <75> cf eb e0 90 0f 0b 90 45 31 f6 e9 62 ff ff ff 90 0f 0b 90 e9 a1
RSP: 0018:ffffc90003e67760 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: 1ffff920007ccef4 RCX: ffffffff9a3d9903
RDX: 0000000000000001 RSI: ffffffff8c0ad7a0 RDI: ffffffff8c610c20
RBP: ffffc90003e67838 R08: ffffffff942a38d7 R09: 1ffffffff285471a
R10: dffffc0000000000 R11: fffffbfff285471b R12: ffffc90003e677a0
R13: 1ffff920007ccef0 R14: 0000000000000000 R15: 0000000000000203
__qdisc_destroy+0x165/0x410 net/sched/sch_generic.c:1079
netdev_for_each_tx_queue include/linux/netdevice.h:2504 [inline]
dev_shutdown+0x9b/0x450 net/sched/sch_generic.c:1490
unregister_netdevice_many_notify+0x995/0x1da0 net/core/dev.c:11392
cleanup_net+0x75d/0xcc0 net/core/net_namespace.c:621
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Modules linked in:
CR2: fffffbfffb11e000
---[ end trace 0000000000000000 ]---
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:87 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:104 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:129 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:161 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x82/0x290 mm/kasan/generic.c:189
Code: 01 00 00 00 00 fc ff df 4f 8d 3c 31 4c 89 fd 4c 29 dd 48 83 fd 10 7f 29 48 85 ed 0f 84 3e 01 00 00 4c 89 cd 48 f7 d5 48 01 dd <41> 80 3b 00 0f 85 c9 01 00 00 49 ff c3 48 ff c5 75 ee e9 1e 01 00
RSP: 0018:ffffc90000007998 EFLAGS: 00010286
RAX: 0000000000000001 RBX: 1ffffffffb11e000 RCX: ffffffff81cf410f
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffffd88f0000
RBP: ffffffffffffffff R08: ffffffffd88f0007 R09: 1ffffffffb11e000
R10: dffffc0000000000 R11: fffffbfffb11e000 R12: ffffffffd88f0000
R13: 0000000000000008 R14: dffffc0000000001 R15: fffffbfffb11e001
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffbfffb11e000 CR3: 00000000694b4000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 7 bytes skipped:
0: df 4f 8d fisttps -0x73(%rdi)
3: 3c 31 cmp $0x31,%al
5: 4c 89 fd mov %r15,%rbp
8: 4c 29 dd sub %r11,%rbp
b: 48 83 fd 10 cmp $0x10,%rbp
f: 7f 29 jg 0x3a
11: 48 85 ed test %rbp,%rbp
14: 0f 84 3e 01 00 00 je 0x158
1a: 4c 89 cd mov %r9,%rbp
1d: 48 f7 d5 not %rbp
20: 48 01 dd add %rbx,%rbp
* 23: 41 80 3b 00 cmpb $0x0,(%r11) <-- trapping instruction
27: 0f 85 c9 01 00 00 jne 0x1f6
2d: 49 ff c3 inc %r11
30: 48 ff c5 inc %rbp
33: 75 ee jne 0x23
35: e9 .byte 0xe9
36: 1e (bad)
37: 01 00 add %eax,(%rax)