syzbot
INFO: rcu detected stall in nfnl_osf_add_callback
Status: auto-obsoleted due to no activity on 2026/09/20 03:08
Subsystems:
mm
Labels:
prio:low
[Documentation on labels]
First crash: 123d, last: 123d
Sample crash report:
bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:65:bb:d1:20:c7, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P16753/1:b..l
rcu: (detected by 0, t=10502 jiffies, g=218993, q=2978 ncpus=2)
task:syz.3.12034 state:R running task stack:25192 pid:16753 tgid:16750 ppid:5895 task_flags:0x400140 flags:0x00080000
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5504 [inline]
__schedule+0x17d9/0x56c0 kernel/sched/core.c:7228
preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7552
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
irqentry_exit+0x14f/0x8f0 kernel/entry/common.c:167
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:__asan_memset+0x5/0x50 mm/kasan/shadow.c:83
Code: 01 00 00 00 e9 5c e5 ff ff 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 <41> 56 53 48 89 d3 89 f5 49 89 fe 48 8b 4c 24 18 48 89 d6 ba 01 00
RSP: 0018:ffffc90006fce990 EFLAGS: 00000246
RAX: ffffc90006fcecc0 RBX: ffffc90006fcea98 RCX: 1ffff92000df9d01
RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffffc90006fcea98
RBP: 1ffffffff21a8e0d R08: ffffc90006fcecc0 R09: 0000000000000000
R10: ffffc90006fcea98 R11: ffffffff81b10630 R12: dffffc0000000000
R13: ffffffff90d4706a R14: ffffc90006fcea48 R15: ffffc90006fcea90
unwind_next_frame+0xd04/0x2550 arch/x86/kernel/unwind_orc.c:621
arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
save_stack+0x122/0x230 mm/page_owner.c:165
__reset_page_owner+0x71/0x1f0 mm/page_owner.c:320
reset_page_owner include/linux/page_owner.h:25 [inline]
__free_pages_prepare mm/page_alloc.c:1397 [inline]
__free_frozen_pages+0xc0d/0xd20 mm/page_alloc.c:2938
__slab_free+0x274/0x2c0 mm/slub.c:5672
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4610 [inline]
slab_alloc_node mm/slub.c:4939 [inline]
__kmalloc_cache_noprof+0x2b6/0x660 mm/slub.c:5446
_kmalloc_noprof include/linux/slab.h:969 [inline]
nfnl_osf_add_callback+0x651/0x9b0 net/netfilter/nfnetlink_osf.c:328
nfnetlink_rcv_msg+0xcc2/0x12b0 net/netfilter/nfnetlink.c:300
netlink_rcv_skb+0x226/0x4a0 net/netlink/af_netlink.c:2556
nfnetlink_rcv+0x2b9/0x28c0 net/netfilter/nfnetlink.c:667
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x7bb/0x940 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
sock_sendmsg_nosec net/socket.c:775 [inline]
__sock_sendmsg net/socket.c:790 [inline]
____sys_sendmsg+0x9b9/0xa20 net/socket.c:2684
___sys_sendmsg+0x2a5/0x360 net/socket.c:2738
__sys_sendmsg net/socket.c:2770 [inline]
__do_sys_sendmsg net/socket.c:2775 [inline]
__se_sys_sendmsg net/socket.c:2773 [inline]
__x64_sys_sendmsg+0x1b1/0x290 net/socket.c:2773
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f423879ce59
RSP: 002b:00007f423971f028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f4238a16090 RCX: 00007f423879ce59
RDX: 0000000000000010 RSI: 0000200000000080 RDI: 000000000000000b
RBP: 00007f4238832e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f4238a16128 R14: 00007f4238a16090 R15: 00007ffd85d7b838
</TASK>
net_ratelimit: 22994 callbacks suppressed
bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:65:bb:d1:20:c7, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:65:bb:d1:20:c7, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:65:bb:d1:20:c7, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:65:bb:d1:20:c7, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:65:bb:d1:20:c7, vlan:0)
net_ratelimit: 26591 callbacks suppressed
bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:65:bb:d1:20:c7, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:65:bb:d1:20:c7, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:65:bb:d1:20:c7, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:65:bb:d1:20:c7, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:65:bb:d1:20:c7, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:96:65:bb:d1:20:c7, vlan:0)
* Struck through repros no longer work on HEAD.