bridge0: received packet on veth1_to_bridge with own address as source address (addr:72:5e:a3:36:f2:8a, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P9225/1:b..l rcu: (detected by 1, t=10517 jiffies, g=33001, q=2776 ncpus=2) task:syz.2.890 state:R running task stack:25872 pid:9225 tgid:9222 ppid:5625 task_flags:0x400140 flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5533 [inline] __schedule+0x17db/0x58f0 kernel/sched/core.c:7284 preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:7606 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline] irqentry_exit+0x14f/0x910 kernel/entry/common.c:167 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:its_return_thunk+0x0/0x10 arch/x86/lib/retpoline.S:437 Code: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 e9 3b 25 49 f5 cc RSP: 0018:ffffc9000508eb80 EFLAGS: 00000293 RAX: ffffffff8243cf51 RBX: 0000000000056d89 RCX: ffff888067030000 RDX: 0000000000000000 RSI: 0000000000006d89 RDI: 0000000000000000 RBP: 0000000000000002 R08: ffff88801de23acf R09: 1ffff11003bc4759 R10: dffffc0000000000 R11: ffffed1003bc475a R12: 0000000000000001 R13: ffff88801de23ad0 R14: 0000000000000002 R15: 0000000000000004 __page_table_check_zero+0x2c1/0x430 mm/page_table_check.c:139 page_table_check_alloc include/linux/page_table_check.h:38 [inline] post_alloc_hook+0x208/0x250 mm/page_alloc.c:1872 prep_new_page mm/page_alloc.c:1879 [inline] get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943 __alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436 alloc_pages_mpol+0x21e/0x390 mm/mempolicy.c:2486 ___kmalloc_large_node+0x4f/0x120 mm/slub.c:5353 __kmalloc_large_node_noprof+0x18/0x90 mm/slub.c:5385 __do_kmalloc_node mm/slub.c:5402 [inline] __kmalloc_node_track_caller_noprof+0x15e/0x720 mm/slub.c:5545 __do_krealloc mm/slub.c:6946 [inline] krealloc_node_align_noprof+0x19a/0x390 mm/slub.c:6967 kvrealloc_node_align_noprof+0x7b/0xf0 mm/slub.c:7109 diag_append_history+0x1e6/0x520 kernel/bpf/diagnostics.c:466 diag_record_mod+0x65c/0xac0 kernel/bpf/diagnostics.c:1545 bpf_diag_mod_end+0x4cf/0x6e0 kernel/bpf/diagnostics.c:1651 check_alu_op kernel/bpf/verifier.c:16110 [inline] do_check_insn+0xc762/0x17d00 kernel/bpf/verifier.c:18295 do_check kernel/bpf/verifier.c:18546 [inline] do_check_common+0x35fa/0x55c0 kernel/bpf/verifier.c:19628 do_check_main+0xa2/0x1f0 kernel/bpf/verifier.c:19730 bpf_check+0x2777/0x2ef0 kernel/bpf/verifier.c:21394 bpf_prog_load+0x14d6/0x1c20 kernel/bpf/syscall.c:3133 __sys_bpf+0xd0d/0xd90 kernel/bpf/syscall.c:6370 __do_sys_bpf kernel/bpf/syscall.c:6489 [inline] __se_sys_bpf kernel/bpf/syscall.c:6486 [inline] __x64_sys_bpf+0xba/0xd0 kernel/bpf/syscall.c:6486 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f4b9cd9e199 RSP: 002b:00007f4b9dbf5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f4b9d026090 RCX: 00007f4b9cd9e199 RDX: 0000000000000048 RSI: 000020000000e000 RDI: 0000000000000005 RBP: 00007f4b9ce350b8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f4b9d026128 R14: 00007f4b9d026090 R15: 00007ffd3b15f088 net_ratelimit: 15904 callbacks suppressed bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:72:5e:a3:36:f2:8a, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:72:5e:a3:36:f2:8a, vlan:0)