* [syzbot ci] Re: netfilter: ipset fixes, second batch
[not found] <20260609072750.318774-1-kadlec@netfilter.org>
@ 2026-06-09 20:44 ` syzbot ci
0 siblings, 0 replies; 2+ messages in thread
From: syzbot ci @ 2026-06-09 20:44 UTC (permalink / raw)
To: kadlec, netfilter-devel, pablo; +Cc: syzbot, syzkaller-bugs
syzbot ci has tested the following series
[v2] netfilter: ipset fixes, second batch
https://lore.kernel.org/all/20260609072750.318774-1-kadlec@netfilter.org
* [PATCH v2 1/9] netfilter: ipset: Don't use test_bit() in lockless RCU readers in hash types
* [PATCH v2 2/9] netfilter: ipset: Don't use test_bit() in lockless RCU readers in bitmap types
* [PATCH v2 3/9] netfilter: ipset: fix order of kfree_rcu() and rcu_assign_pointer()
* [PATCH v2 4/9] netfilter: ipset: Extend the rcu locked area properly
* [PATCH v2 5/9] netfilter: ipset: exlude gc when resize is in progress
* [PATCH v2 6/9] netfilter: ipset: fix potential double free at resize/del
* [PATCH v2 7/9] netfilter: ipset: make sure gc is properly stopped
* [PATCH v2 8/9] netfilter: ipset: fix potential torn read in reuse/forceadd cases
* [PATCH v2 9/9] netfilter: ipset: rework cidr bookkeeping
and found the following issues:
* BUG: sleeping function called from invalid context in hash_ip4_resize
* BUG: sleeping function called from invalid context in hash_ipmark4_resize
* BUG: sleeping function called from invalid context in hash_ipport4_resize
* BUG: sleeping function called from invalid context in hash_ipportnet6_resize
* BUG: sleeping function called from invalid context in hash_net4_resize
Full report is available here:
https://ci.syzbot.org/series/60ee40c9-c67a-4d2e-8c5c-7cbc4f2c35e3
***
BUG: sleeping function called from invalid context in hash_ip4_resize
tree: nf-next
URL: https://kernel.googlesource.com/pub/scm/linux/kernel/git/netfilter/nf-next.git
base: bfa3d89cc15c09f7d1581c834a5ed725189ec19f
arch: amd64
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
config: https://ci.syzbot.org/builds/63302f1b-7561-4e38-b3bc-890b9b65c7c1/config
syz repro: https://ci.syzbot.org/findings/3f7d3e03-c73e-47d2-a969-7c113b094a23/syz_repro
BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:323
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 5837, name: syz.0.17
preempt_count: 201, expected: 0
RCU nest depth: 0, expected: 0
2 locks held by syz.0.17/5837:
#0: ffffffff9a952da0 (nfnl_subsys_ipset){+.+.}-{4:4}, at: nfnl_lock net/netfilter/nfnetlink.c:96 [inline]
#0: ffffffff9a952da0 (nfnl_subsys_ipset){+.+.}-{4:4}, at: nfnetlink_rcv_msg+0xa71/0x12c0 net/netfilter/nfnetlink.c:293
#1: ffff8881bbd48028 (&t->gc_lock){+...}-{3:3}, at: spin_lock_bh include/linux/spinlock.h:348 [inline]
#1: ffff8881bbd48028 (&t->gc_lock){+...}-{3:3}, at: hash_ip4_resize+0x149/0x1a80 net/netfilter/ipset/ip_set_hash_gen.h:667
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 0 UID: 0 PID: 5837 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
<TASK>
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
__might_resched+0x378/0x4d0 kernel/sched/core.c:9163
might_alloc include/linux/sched/mm.h:323 [inline]
slab_pre_alloc_hook mm/slub.c:4521 [inline]
slab_alloc_node mm/slub.c:4876 [inline]
__do_kmalloc_node mm/slub.c:5295 [inline]
__kvmalloc_node_noprof+0x164/0x8a0 mm/slub.c:6833
hash_ip4_resize+0x278/0x1a80 net/netfilter/ipset/ip_set_hash_gen.h:682
call_ad+0x562/0xb60 net/netfilter/ipset/ip_set_core.c:1758
ip_set_ad+0x824/0x9d0 net/netfilter/ipset/ip_set_core.c:1842
nfnetlink_rcv_msg+0xc03/0x12c0 net/netfilter/nfnetlink.c:300
netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556
nfnetlink_rcv+0x2c0/0x27b0 net/netfilter/nfnetlink.c:667
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
sock_sendmsg_nosec net/socket.c:787 [inline]
__sock_sendmsg net/socket.c:802 [inline]
____sys_sendmsg+0x972/0x9f0 net/socket.c:2698
___sys_sendmsg+0x2a5/0x360 net/socket.c:2752
__sys_sendmsg net/socket.c:2784 [inline]
__do_sys_sendmsg net/socket.c:2789 [inline]
__se_sys_sendmsg net/socket.c:2787 [inline]
__x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2787
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: 0033:0x7fb3ded9ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb3dfcee028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fb3df015fa0 RCX: 00007fb3ded9ce59
RDX: 00000000240008c4 RSI: 0000200000000000 RDI: 0000000000000004
RBP: 00007fb3dee32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb3df016038 R14: 00007fb3df015fa0 R15: 00007ffd0454d2c8
</TASK>
INFO: trying to register non-static key.
The code is fine but needs lockdep annotation, or maybe
you didn't initialize this object before use?
turning off the locking correctness validator.
CPU: 0 UID: 0 PID: 5837 Comm: syz.0.17 Tainted: G W syzkaller #0 PREEMPT(full)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
<TASK>
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
assign_lock_key+0x133/0x150 kernel/locking/lockdep.c:984
register_lock_class+0xcc/0x2e0 kernel/locking/lockdep.c:1299
__lock_acquire+0xad/0x2cf0 kernel/locking/lockdep.c:5112
lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5868
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:150 [inline]
_raw_spin_lock_bh+0x36/0x50 kernel/locking/spinlock.c:182
spin_lock_bh include/linux/spinlock.h:348 [inline]
hash_ip4_resize+0x149/0x1a80 net/netfilter/ipset/ip_set_hash_gen.h:667
call_ad+0x463/0xb60 net/netfilter/ipset/ip_set_core.c:1758
ip_set_ad+0x824/0x9d0 net/netfilter/ipset/ip_set_core.c:1842
nfnetlink_rcv_msg+0xc03/0x12c0 net/netfilter/nfnetlink.c:300
netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556
nfnetlink_rcv+0x2c0/0x27b0 net/netfilter/nfnetlink.c:667
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
sock_sendmsg_nosec net/socket.c:787 [inline]
__sock_sendmsg net/socket.c:802 [inline]
____sys_sendmsg+0x972/0x9f0 net/socket.c:2698
___sys_sendmsg+0x2a5/0x360 net/socket.c:2752
__sys_sendmsg net/socket.c:2784 [inline]
__do_sys_sendmsg net/socket.c:2789 [inline]
__se_sys_sendmsg net/socket.c:2787 [inline]
__x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2787
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: 0033:0x7fb3ded9ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb3dfcee028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fb3df015fa0 RCX: 00007fb3ded9ce59
RDX: 00000000240008c4 RSI: 0000200000000000 RDI: 0000000000000004
RBP: 00007fb3dee32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb3df016038 R14: 00007fb3df015fa0 R15: 00007ffd0454d2c8
</TASK>
Set syz1 is full, maxelem 65536 reached
***
BUG: sleeping function called from invalid context in hash_ipmark4_resize
tree: nf-next
URL: https://kernel.googlesource.com/pub/scm/linux/kernel/git/netfilter/nf-next.git
base: bfa3d89cc15c09f7d1581c834a5ed725189ec19f
arch: amd64
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
config: https://ci.syzbot.org/builds/63302f1b-7561-4e38-b3bc-890b9b65c7c1/config
syz repro: https://ci.syzbot.org/findings/57335612-22e3-4e78-a4ec-3d06321de960/syz_repro
BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:323
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 5839, name: syz.1.18
preempt_count: 201, expected: 0
RCU nest depth: 0, expected: 0
2 locks held by syz.1.18/5839:
#0: ffffffff9a952da0 (nfnl_subsys_ipset){+.+.}-{4:4}, at: nfnl_lock net/netfilter/nfnetlink.c:96 [inline]
#0: ffffffff9a952da0 (nfnl_subsys_ipset){+.+.}-{4:4}, at: nfnetlink_rcv_msg+0xa71/0x12c0 net/netfilter/nfnetlink.c:293
#1: ffff888168150028 (&t->gc_lock){+...}-{3:3}, at: spin_lock_bh include/linux/spinlock.h:348 [inline]
#1: ffff888168150028 (&t->gc_lock){+...}-{3:3}, at: hash_ipmark4_resize+0x13f/0x1ae0 net/netfilter/ipset/ip_set_hash_gen.h:667
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 1 UID: 0 PID: 5839 Comm: syz.1.18 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
<TASK>
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
__might_resched+0x378/0x4d0 kernel/sched/core.c:9163
might_alloc include/linux/sched/mm.h:323 [inline]
slab_pre_alloc_hook mm/slub.c:4521 [inline]
slab_alloc_node mm/slub.c:4876 [inline]
__do_kmalloc_node mm/slub.c:5295 [inline]
__kvmalloc_node_noprof+0x164/0x8a0 mm/slub.c:6833
hash_ipmark4_resize+0x26f/0x1ae0 net/netfilter/ipset/ip_set_hash_gen.h:682
call_ad+0x562/0xb60 net/netfilter/ipset/ip_set_core.c:1758
ip_set_ad+0x824/0x9d0 net/netfilter/ipset/ip_set_core.c:1842
nfnetlink_rcv_msg+0xc03/0x12c0 net/netfilter/nfnetlink.c:300
netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556
nfnetlink_rcv+0x2c0/0x27b0 net/netfilter/nfnetlink.c:667
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
sock_sendmsg_nosec net/socket.c:787 [inline]
__sock_sendmsg net/socket.c:802 [inline]
____sys_sendmsg+0x972/0x9f0 net/socket.c:2698
___sys_sendmsg+0x2a5/0x360 net/socket.c:2752
__sys_sendmsg net/socket.c:2784 [inline]
__do_sys_sendmsg net/socket.c:2789 [inline]
__se_sys_sendmsg net/socket.c:2787 [inline]
__x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2787
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: 0033:0x7f37dad9ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f37dbd30028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f37db015fa0 RCX: 00007f37dad9ce59
RDX: 00000000040c0080 RSI: 00002000000002c0 RDI: 0000000000000004
RBP: 00007f37dae32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f37db016038 R14: 00007f37db015fa0 R15: 00007fff6c4f3458
</TASK>
INFO: trying to register non-static key.
The code is fine but needs lockdep annotation, or maybe
you didn't initialize this object before use?
turning off the locking correctness validator.
CPU: 1 UID: 0 PID: 5839 Comm: syz.1.18 Tainted: G W syzkaller #0 PREEMPT(full)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
<TASK>
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
assign_lock_key+0x133/0x150 kernel/locking/lockdep.c:984
register_lock_class+0xcc/0x2e0 kernel/locking/lockdep.c:1299
__lock_acquire+0xad/0x2cf0 kernel/locking/lockdep.c:5112
lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5868
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:150 [inline]
_raw_spin_lock_bh+0x36/0x50 kernel/locking/spinlock.c:182
spin_lock_bh include/linux/spinlock.h:348 [inline]
hash_ipmark4_resize+0x13f/0x1ae0 net/netfilter/ipset/ip_set_hash_gen.h:667
call_ad+0x463/0xb60 net/netfilter/ipset/ip_set_core.c:1758
ip_set_ad+0x824/0x9d0 net/netfilter/ipset/ip_set_core.c:1842
nfnetlink_rcv_msg+0xc03/0x12c0 net/netfilter/nfnetlink.c:300
netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556
nfnetlink_rcv+0x2c0/0x27b0 net/netfilter/nfnetlink.c:667
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
sock_sendmsg_nosec net/socket.c:787 [inline]
__sock_sendmsg net/socket.c:802 [inline]
____sys_sendmsg+0x972/0x9f0 net/socket.c:2698
___sys_sendmsg+0x2a5/0x360 net/socket.c:2752
__sys_sendmsg net/socket.c:2784 [inline]
__do_sys_sendmsg net/socket.c:2789 [inline]
__se_sys_sendmsg net/socket.c:2787 [inline]
__x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2787
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: 0033:0x7f37dad9ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f37dbd30028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f37db015fa0 RCX: 00007f37dad9ce59
RDX: 00000000040c0080 RSI: 00002000000002c0 RDI: 0000000000000004
RBP: 00007f37dae32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f37db016038 R14: 00007f37db015fa0 R15: 00007fff6c4f3458
</TASK>
Set syz1 is full, maxelem 65536 reached
***
BUG: sleeping function called from invalid context in hash_ipport4_resize
tree: nf-next
URL: https://kernel.googlesource.com/pub/scm/linux/kernel/git/netfilter/nf-next.git
base: bfa3d89cc15c09f7d1581c834a5ed725189ec19f
arch: amd64
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
config: https://ci.syzbot.org/builds/63302f1b-7561-4e38-b3bc-890b9b65c7c1/config
syz repro: https://ci.syzbot.org/findings/79e04816-4100-48fa-8d49-43c546bef2fa/syz_repro
BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:323
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 5819, name: syz.2.19
preempt_count: 201, expected: 0
RCU nest depth: 0, expected: 0
2 locks held by syz.2.19/5819:
#0: ffffffff9a952da0 (nfnl_subsys_ipset){+.+.}-{4:4}, at: nfnl_lock net/netfilter/nfnetlink.c:96 [inline]
#0: ffffffff9a952da0 (nfnl_subsys_ipset){+.+.}-{4:4}, at: nfnetlink_rcv_msg+0xa71/0x12c0 net/netfilter/nfnetlink.c:293
#1: ffff888116501828 (&t->gc_lock){+...}-{3:3}, at: spin_lock_bh include/linux/spinlock.h:348 [inline]
#1: ffff888116501828 (&t->gc_lock){+...}-{3:3}, at: hash_ipport4_resize+0x13f/0x1ae0 net/netfilter/ipset/ip_set_hash_gen.h:667
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 0 UID: 0 PID: 5819 Comm: syz.2.19 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
<TASK>
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
__might_resched+0x378/0x4d0 kernel/sched/core.c:9163
might_alloc include/linux/sched/mm.h:323 [inline]
slab_pre_alloc_hook mm/slub.c:4521 [inline]
slab_alloc_node mm/slub.c:4876 [inline]
__do_kmalloc_node mm/slub.c:5295 [inline]
__kvmalloc_node_noprof+0x164/0x8a0 mm/slub.c:6833
hash_ipport4_resize+0x219/0x1ae0 net/netfilter/ipset/ip_set_hash_gen.h:677
call_ad+0x562/0xb60 net/netfilter/ipset/ip_set_core.c:1758
ip_set_ad+0x824/0x9d0 net/netfilter/ipset/ip_set_core.c:1842
nfnetlink_rcv_msg+0xc03/0x12c0 net/netfilter/nfnetlink.c:300
netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556
nfnetlink_rcv+0x2c0/0x27b0 net/netfilter/nfnetlink.c:667
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
sock_sendmsg_nosec net/socket.c:787 [inline]
__sock_sendmsg net/socket.c:802 [inline]
____sys_sendmsg+0x972/0x9f0 net/socket.c:2698
___sys_sendmsg+0x2a5/0x360 net/socket.c:2752
__sys_sendmsg net/socket.c:2784 [inline]
__do_sys_sendmsg net/socket.c:2789 [inline]
__se_sys_sendmsg net/socket.c:2787 [inline]
__x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2787
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: 0033:0x7fe5c739ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe5c8339028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fe5c7615fa0 RCX: 00007fe5c739ce59
RDX: 0000000000000090 RSI: 00002000000002c0 RDI: 0000000000000004
RBP: 00007fe5c7432d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe5c7616038 R14: 00007fe5c7615fa0 R15: 00007ffd329f2868
</TASK>
INFO: trying to register non-static key.
The code is fine but needs lockdep annotation, or maybe
you didn't initialize this object before use?
turning off the locking correctness validator.
CPU: 1 UID: 0 PID: 5819 Comm: syz.2.19 Tainted: G W syzkaller #0 PREEMPT(full)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
<TASK>
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
assign_lock_key+0x133/0x150 kernel/locking/lockdep.c:984
register_lock_class+0xcc/0x2e0 kernel/locking/lockdep.c:1299
__lock_acquire+0xad/0x2cf0 kernel/locking/lockdep.c:5112
lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5868
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:150 [inline]
_raw_spin_lock_bh+0x36/0x50 kernel/locking/spinlock.c:182
spin_lock_bh include/linux/spinlock.h:348 [inline]
hash_ipport4_resize+0x13f/0x1ae0 net/netfilter/ipset/ip_set_hash_gen.h:667
call_ad+0x463/0xb60 net/netfilter/ipset/ip_set_core.c:1758
ip_set_ad+0x824/0x9d0 net/netfilter/ipset/ip_set_core.c:1842
nfnetlink_rcv_msg+0xc03/0x12c0 net/netfilter/nfnetlink.c:300
netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556
nfnetlink_rcv+0x2c0/0x27b0 net/netfilter/nfnetlink.c:667
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
sock_sendmsg_nosec net/socket.c:787 [inline]
__sock_sendmsg net/socket.c:802 [inline]
____sys_sendmsg+0x972/0x9f0 net/socket.c:2698
___sys_sendmsg+0x2a5/0x360 net/socket.c:2752
__sys_sendmsg net/socket.c:2784 [inline]
__do_sys_sendmsg net/socket.c:2789 [inline]
__se_sys_sendmsg net/socket.c:2787 [inline]
__x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2787
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: 0033:0x7fe5c739ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe5c8339028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fe5c7615fa0 RCX: 00007fe5c739ce59
RDX: 0000000000000090 RSI: 00002000000002c0 RDI: 0000000000000004
RBP: 00007fe5c7432d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe5c7616038 R14: 00007fe5c7615fa0 R15: 00007ffd329f2868
</TASK>
***
BUG: sleeping function called from invalid context in hash_ipportnet6_resize
tree: nf-next
URL: https://kernel.googlesource.com/pub/scm/linux/kernel/git/netfilter/nf-next.git
base: bfa3d89cc15c09f7d1581c834a5ed725189ec19f
arch: amd64
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
config: https://ci.syzbot.org/builds/63302f1b-7561-4e38-b3bc-890b9b65c7c1/config
syz repro: https://ci.syzbot.org/findings/8502cd2b-1718-4dd7-8c57-c8f6d494a2b7/syz_repro
BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:323
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 5835, name: syz.1.18
preempt_count: 201, expected: 0
RCU nest depth: 0, expected: 0
2 locks held by syz.1.18/5835:
#0: ffffffff9a952da0 (nfnl_subsys_ipset){+.+.}-{4:4}, at: nfnl_lock net/netfilter/nfnetlink.c:96 [inline]
#0: ffffffff9a952da0 (nfnl_subsys_ipset){+.+.}-{4:4}, at: nfnetlink_rcv_msg+0xa71/0x12c0 net/netfilter/nfnetlink.c:293
#1: ffff8881114d0028 (&t->gc_lock){+...}-{3:3}, at: spin_lock_bh include/linux/spinlock.h:348 [inline]
#1: ffff8881114d0028 (&t->gc_lock){+...}-{3:3}, at: hash_ipportnet6_resize+0x170/0x1eb0 net/netfilter/ipset/ip_set_hash_gen.h:667
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 0 UID: 0 PID: 5835 Comm: syz.1.18 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
<TASK>
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
__might_resched+0x378/0x4d0 kernel/sched/core.c:9163
might_alloc include/linux/sched/mm.h:323 [inline]
slab_pre_alloc_hook mm/slub.c:4521 [inline]
slab_alloc_node mm/slub.c:4876 [inline]
__do_kmalloc_node mm/slub.c:5295 [inline]
__kvmalloc_node_noprof+0x164/0x8a0 mm/slub.c:6833
hash_ipportnet6_resize+0x31d/0x1eb0 net/netfilter/ipset/ip_set_hash_gen.h:682
call_ad+0x562/0xb60 net/netfilter/ipset/ip_set_core.c:1758
ip_set_ad+0x824/0x9d0 net/netfilter/ipset/ip_set_core.c:1842
nfnetlink_rcv_msg+0xc03/0x12c0 net/netfilter/nfnetlink.c:300
netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556
nfnetlink_rcv+0x2c0/0x27b0 net/netfilter/nfnetlink.c:667
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
sock_sendmsg_nosec net/socket.c:787 [inline]
__sock_sendmsg net/socket.c:802 [inline]
____sys_sendmsg+0x972/0x9f0 net/socket.c:2698
___sys_sendmsg+0x2a5/0x360 net/socket.c:2752
__sys_sendmsg net/socket.c:2784 [inline]
__do_sys_sendmsg net/socket.c:2789 [inline]
__se_sys_sendmsg net/socket.c:2787 [inline]
__x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2787
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: 0033:0x7f27c6b9ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f27c7a44028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f27c6e15fa0 RCX: 00007f27c6b9ce59
RDX: 0000000000000000 RSI: 00002000000002c0 RDI: 0000000000000004
RBP: 00007f27c6c32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f27c6e16038 R14: 00007f27c6e15fa0 R15: 00007ffcb0b8a718
</TASK>
INFO: trying to register non-static key.
The code is fine but needs lockdep annotation, or maybe
you didn't initialize this object before use?
turning off the locking correctness validator.
CPU: 0 UID: 0 PID: 5835 Comm: syz.1.18 Tainted: G W syzkaller #0 PREEMPT(full)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
<TASK>
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
assign_lock_key+0x133/0x150 kernel/locking/lockdep.c:984
register_lock_class+0xcc/0x2e0 kernel/locking/lockdep.c:1299
__lock_acquire+0xad/0x2cf0 kernel/locking/lockdep.c:5112
lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5868
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:150 [inline]
_raw_spin_lock_bh+0x36/0x50 kernel/locking/spinlock.c:182
spin_lock_bh include/linux/spinlock.h:348 [inline]
hash_ipportnet6_resize+0x170/0x1eb0 net/netfilter/ipset/ip_set_hash_gen.h:667
call_ad+0x463/0xb60 net/netfilter/ipset/ip_set_core.c:1758
ip_set_ad+0x824/0x9d0 net/netfilter/ipset/ip_set_core.c:1842
nfnetlink_rcv_msg+0xc03/0x12c0 net/netfilter/nfnetlink.c:300
netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556
nfnetlink_rcv+0x2c0/0x27b0 net/netfilter/nfnetlink.c:667
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
sock_sendmsg_nosec net/socket.c:787 [inline]
__sock_sendmsg net/socket.c:802 [inline]
____sys_sendmsg+0x972/0x9f0 net/socket.c:2698
___sys_sendmsg+0x2a5/0x360 net/socket.c:2752
__sys_sendmsg net/socket.c:2784 [inline]
__do_sys_sendmsg net/socket.c:2789 [inline]
__se_sys_sendmsg net/socket.c:2787 [inline]
__x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2787
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: 0033:0x7f27c6b9ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f27c7a44028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f27c6e15fa0 RCX: 00007f27c6b9ce59
RDX: 0000000000000000 RSI: 00002000000002c0 RDI: 0000000000000004
RBP: 00007f27c6c32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f27c6e16038 R14: 00007f27c6e15fa0 R15: 00007ffcb0b8a718
</TASK>
***
BUG: sleeping function called from invalid context in hash_net4_resize
tree: nf-next
URL: https://kernel.googlesource.com/pub/scm/linux/kernel/git/netfilter/nf-next.git
base: bfa3d89cc15c09f7d1581c834a5ed725189ec19f
arch: amd64
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
config: https://ci.syzbot.org/builds/63302f1b-7561-4e38-b3bc-890b9b65c7c1/config
syz repro: https://ci.syzbot.org/findings/230cf2b1-2c8b-4558-b095-874702f9bc7d/syz_repro
BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:323
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 5814, name: syz.1.18
preempt_count: 201, expected: 0
RCU nest depth: 0, expected: 0
2 locks held by syz.1.18/5814:
#0: ffffffff9a952da0 (nfnl_subsys_ipset){+.+.}-{4:4}, at: nfnl_lock net/netfilter/nfnetlink.c:96 [inline]
#0: ffffffff9a952da0 (nfnl_subsys_ipset){+.+.}-{4:4}, at: nfnetlink_rcv_msg+0xa71/0x12c0 net/netfilter/nfnetlink.c:293
#1: ffff88816a8df028 (&t->gc_lock){+...}-{3:3}, at: spin_lock_bh include/linux/spinlock.h:348 [inline]
#1: ffff88816a8df028 (&t->gc_lock){+...}-{3:3}, at: hash_net4_resize+0x168/0x1bb0 net/netfilter/ipset/ip_set_hash_gen.h:667
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 1 UID: 0 PID: 5814 Comm: syz.1.18 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
<TASK>
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
__might_resched+0x378/0x4d0 kernel/sched/core.c:9163
might_alloc include/linux/sched/mm.h:323 [inline]
slab_pre_alloc_hook mm/slub.c:4521 [inline]
slab_alloc_node mm/slub.c:4876 [inline]
__do_kmalloc_node mm/slub.c:5295 [inline]
__kvmalloc_node_noprof+0x164/0x8a0 mm/slub.c:6833
hash_net4_resize+0x26e/0x1bb0 net/netfilter/ipset/ip_set_hash_gen.h:677
call_ad+0x562/0xb60 net/netfilter/ipset/ip_set_core.c:1758
ip_set_ad+0x824/0x9d0 net/netfilter/ipset/ip_set_core.c:1842
nfnetlink_rcv_msg+0xc03/0x12c0 net/netfilter/nfnetlink.c:300
netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556
nfnetlink_rcv+0x2c0/0x27b0 net/netfilter/nfnetlink.c:667
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
sock_sendmsg_nosec net/socket.c:787 [inline]
__sock_sendmsg net/socket.c:802 [inline]
____sys_sendmsg+0x972/0x9f0 net/socket.c:2698
___sys_sendmsg+0x2a5/0x360 net/socket.c:2752
__sys_sendmsg net/socket.c:2784 [inline]
__do_sys_sendmsg net/socket.c:2789 [inline]
__se_sys_sendmsg net/socket.c:2787 [inline]
__x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2787
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: 0033:0x7fe472d9ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe473bc7028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fe473015fa0 RCX: 00007fe472d9ce59
RDX: 0000000004000050 RSI: 0000200000000000 RDI: 0000000000000003
RBP: 00007fe472e32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe473016038 R14: 00007fe473015fa0 R15: 00007ffcba742758
</TASK>
INFO: trying to register non-static key.
The code is fine but needs lockdep annotation, or maybe
you didn't initialize this object before use?
turning off the locking correctness validator.
CPU: 1 UID: 0 PID: 5814 Comm: syz.1.18 Tainted: G W syzkaller #0 PREEMPT(full)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
<TASK>
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
assign_lock_key+0x133/0x150 kernel/locking/lockdep.c:984
register_lock_class+0xcc/0x2e0 kernel/locking/lockdep.c:1299
__lock_acquire+0xad/0x2cf0 kernel/locking/lockdep.c:5112
lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5868
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:150 [inline]
_raw_spin_lock_bh+0x36/0x50 kernel/locking/spinlock.c:182
spin_lock_bh include/linux/spinlock.h:348 [inline]
hash_net4_resize+0x168/0x1bb0 net/netfilter/ipset/ip_set_hash_gen.h:667
call_ad+0x463/0xb60 net/netfilter/ipset/ip_set_core.c:1758
ip_set_ad+0x824/0x9d0 net/netfilter/ipset/ip_set_core.c:1842
nfnetlink_rcv_msg+0xc03/0x12c0 net/netfilter/nfnetlink.c:300
netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556
nfnetlink_rcv+0x2c0/0x27b0 net/netfilter/nfnetlink.c:667
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
sock_sendmsg_nosec net/socket.c:787 [inline]
__sock_sendmsg net/socket.c:802 [inline]
____sys_sendmsg+0x972/0x9f0 net/socket.c:2698
___sys_sendmsg+0x2a5/0x360 net/socket.c:2752
__sys_sendmsg net/socket.c:2784 [inline]
__do_sys_sendmsg net/socket.c:2789 [inline]
__se_sys_sendmsg net/socket.c:2787 [inline]
__x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2787
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: 0033:0x7fe472d9ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe473bc7028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fe473015fa0 RCX: 00007fe472d9ce59
RDX: 0000000004000050 RSI: 0000200000000000 RDI: 0000000000000003
RBP: 00007fe472e32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe473016038 R14: 00007fe473015fa0 R15: 00007ffcba742758
</TASK>
Set syz1 is full, maxelem 65536 reached
***
If these findings have caused you to resend the series or submit a
separate fix, please add the following tag to your commit message:
Tested-by: syzbot@syzkaller.appspotmail.com
---
This report is generated by a bot. It may contain errors.
syzbot ci engineers can be reached at syzkaller@googlegroups.com.
To test a patch for this bug, please reply with `#syz test`
(should be on a separate line).
The patch should be attached to the email.
Note: arguments like custom git repos and branches are not supported.
^ permalink raw reply [flat|nested] 2+ messages in thread
* [syzbot ci] Re: netfilter: ipset fixes, second batch
[not found] <20260617084128.6603-1-kadlec@netfilter.org>
@ 2026-06-17 13:28 ` syzbot ci
0 siblings, 0 replies; 2+ messages in thread
From: syzbot ci @ 2026-06-17 13:28 UTC (permalink / raw)
To: kadlec, netfilter-devel, pablo; +Cc: syzbot, syzkaller-bugs
syzbot ci has tested the following series
[v3] netfilter: ipset fixes, second batch
https://lore.kernel.org/all/20260617084128.6603-1-kadlec@netfilter.org
* [PATCH v3 1/7] netfilter: ipset: Don't use test_bit() in lockless RCU readers in hash types
* [PATCH v3 2/7] netfilter: ipset: Don't use test_bit() in lockless RCU readers in bitmap types
* [PATCH v3 3/7] netfilter: ipset: fix order of kfree_rcu() and rcu_assign_pointer()
* [PATCH v3 4/7] netfilter: ipset: exlude gc when resize is in progress
* [PATCH v3 5/7] netfilter: ipset: make sure gc is properly stopped
* [PATCH v3 6/7] netfilter: ipset: cleanup the add/del backlog when resize failed
* [PATCH v3 7/7] netfilter: ipset: rework cidr bookkeeping
and found the following issues:
* INFO: trying to register non-static key in hash_ipportip6_resize
* INFO: trying to register non-static key in hash_netport6_resize
* INFO: trying to register non-static key in hash_netportnet6_resize
Full report is available here:
https://ci.syzbot.org/series/7264660b-3f58-4809-9af0-c77ead1aac16
***
INFO: trying to register non-static key in hash_ipportip6_resize
tree: nf-next
URL: https://kernel.googlesource.com/pub/scm/linux/kernel/git/netfilter/nf-next.git
base: 3b165c2a29cfb6453f26e1ac833ca6afd28d28cf
arch: amd64
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
config: https://ci.syzbot.org/builds/44611eeb-52b4-4b97-8744-2265cbb063fa/config
syz repro: https://ci.syzbot.org/findings/c1aaddfd-5ff4-410d-85fa-3c212552d465/syz_repro
INFO: trying to register non-static key.
The code is fine but needs lockdep annotation, or maybe
you didn't initialize this object before use?
turning off the locking correctness validator.
CPU: 0 UID: 0 PID: 5810 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
<TASK>
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
assign_lock_key+0x133/0x150 kernel/locking/lockdep.c:984
register_lock_class+0xcc/0x2e0 kernel/locking/lockdep.c:1299
__lock_acquire+0xad/0x2cf0 kernel/locking/lockdep.c:5112
lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5868
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:150 [inline]
_raw_spin_lock_bh+0x36/0x50 kernel/locking/spinlock.c:182
spin_lock_bh include/linux/spinlock.h:348 [inline]
hash_ipportip6_resize+0x4d4/0x1dd0 net/netfilter/ipset/ip_set_hash_gen.h:699
call_ad+0x463/0xb60 net/netfilter/ipset/ip_set_core.c:1758
ip_set_ad+0x824/0x9d0 net/netfilter/ipset/ip_set_core.c:1842
nfnetlink_rcv_msg+0xc03/0x12c0 net/netfilter/nfnetlink.c:300
netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556
nfnetlink_rcv+0x2c0/0x27b0 net/netfilter/nfnetlink.c:667
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
sock_sendmsg_nosec net/socket.c:787 [inline]
__sock_sendmsg net/socket.c:802 [inline]
____sys_sendmsg+0x972/0x9f0 net/socket.c:2699
___sys_sendmsg+0x2a5/0x360 net/socket.c:2753
__sys_sendmsg net/socket.c:2785 [inline]
__do_sys_sendmsg net/socket.c:2790 [inline]
__se_sys_sendmsg net/socket.c:2788 [inline]
__x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2788
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: 0033:0x7f4ef2b9ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4ef3b42028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f4ef2e15fa0 RCX: 00007f4ef2b9ce59
RDX: 0000000000000000 RSI: 00002000000002c0 RDI: 0000000000000004
RBP: 00007f4ef2c32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f4ef2e16038 R14: 00007f4ef2e15fa0 R15: 00007ffd926dea58
</TASK>
***
INFO: trying to register non-static key in hash_netport6_resize
tree: nf-next
URL: https://kernel.googlesource.com/pub/scm/linux/kernel/git/netfilter/nf-next.git
base: 3b165c2a29cfb6453f26e1ac833ca6afd28d28cf
arch: amd64
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
config: https://ci.syzbot.org/builds/44611eeb-52b4-4b97-8744-2265cbb063fa/config
syz repro: https://ci.syzbot.org/findings/60d79dbd-6e73-4ee8-be39-8bea69cb5f52/syz_repro
INFO: trying to register non-static key.
The code is fine but needs lockdep annotation, or maybe
you didn't initialize this object before use?
turning off the locking correctness validator.
CPU: 0 UID: 0 PID: 5834 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
<TASK>
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
assign_lock_key+0x133/0x150 kernel/locking/lockdep.c:984
register_lock_class+0xcc/0x2e0 kernel/locking/lockdep.c:1299
__lock_acquire+0xad/0x2cf0 kernel/locking/lockdep.c:5112
lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5868
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:150 [inline]
_raw_spin_lock_bh+0x36/0x50 kernel/locking/spinlock.c:182
spin_lock_bh include/linux/spinlock.h:348 [inline]
hash_netport6_resize+0x548/0x1d30 net/netfilter/ipset/ip_set_hash_gen.h:699
call_ad+0x463/0xb60 net/netfilter/ipset/ip_set_core.c:1758
ip_set_ad+0x824/0x9d0 net/netfilter/ipset/ip_set_core.c:1842
nfnetlink_rcv_msg+0xc03/0x12c0 net/netfilter/nfnetlink.c:300
netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556
nfnetlink_rcv+0x2c0/0x27b0 net/netfilter/nfnetlink.c:667
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
sock_sendmsg_nosec net/socket.c:787 [inline]
__sock_sendmsg net/socket.c:802 [inline]
____sys_sendmsg+0x972/0x9f0 net/socket.c:2699
___sys_sendmsg+0x2a5/0x360 net/socket.c:2753
__sys_sendmsg net/socket.c:2785 [inline]
__do_sys_sendmsg net/socket.c:2790 [inline]
__se_sys_sendmsg net/socket.c:2788 [inline]
__x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2788
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: 0033:0x7f5c11d9ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5c113dd028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f5c12016090 RCX: 00007f5c11d9ce59
RDX: 0000000000000090 RSI: 00002000000002c0 RDI: 0000000000000004
RBP: 00007f5c11e32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5c12016128 R14: 00007f5c12016090 R15: 00007ffd4124a0a8
</TASK>
***
INFO: trying to register non-static key in hash_netportnet6_resize
tree: nf-next
URL: https://kernel.googlesource.com/pub/scm/linux/kernel/git/netfilter/nf-next.git
base: 3b165c2a29cfb6453f26e1ac833ca6afd28d28cf
arch: amd64
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
config: https://ci.syzbot.org/builds/44611eeb-52b4-4b97-8744-2265cbb063fa/config
syz repro: https://ci.syzbot.org/findings/a0e027e2-8833-4fe6-8f75-2f388682c035/syz_repro
INFO: trying to register non-static key.
The code is fine but needs lockdep annotation, or maybe
you didn't initialize this object before use?
turning off the locking correctness validator.
CPU: 0 UID: 0 PID: 5880 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
<TASK>
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
assign_lock_key+0x133/0x150 kernel/locking/lockdep.c:984
register_lock_class+0xcc/0x2e0 kernel/locking/lockdep.c:1299
__lock_acquire+0xad/0x2cf0 kernel/locking/lockdep.c:5112
lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5868
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:150 [inline]
_raw_spin_lock_bh+0x36/0x50 kernel/locking/spinlock.c:182
spin_lock_bh include/linux/spinlock.h:348 [inline]
hash_netportnet6_resize+0x5aa/0x2040 net/netfilter/ipset/ip_set_hash_gen.h:699
call_ad+0x463/0xb60 net/netfilter/ipset/ip_set_core.c:1758
ip_set_ad+0x824/0x9d0 net/netfilter/ipset/ip_set_core.c:1842
nfnetlink_rcv_msg+0xc03/0x12c0 net/netfilter/nfnetlink.c:300
netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556
nfnetlink_rcv+0x2c0/0x27b0 net/netfilter/nfnetlink.c:667
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
sock_sendmsg_nosec net/socket.c:787 [inline]
__sock_sendmsg net/socket.c:802 [inline]
____sys_sendmsg+0x972/0x9f0 net/socket.c:2699
___sys_sendmsg+0x2a5/0x360 net/socket.c:2753
__sys_sendmsg net/socket.c:2785 [inline]
__do_sys_sendmsg net/socket.c:2790 [inline]
__se_sys_sendmsg net/socket.c:2788 [inline]
__x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2788
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: 0033:0x7f9c00b9ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9c01a82028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f9c00e15fa0 RCX: 00007f9c00b9ce59
RDX: 0000000000000000 RSI: 00002000000002c0 RDI: 0000000000000004
RBP: 00007f9c00c32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f9c00e16038 R14: 00007f9c00e15fa0 R15: 00007ffe8ca45b58
</TASK>
***
If these findings have caused you to resend the series or submit a
separate fix, please add the following tag to your commit message:
Tested-by: syzbot@syzkaller.appspotmail.com
---
This report is generated by a bot. It may contain errors.
syzbot ci engineers can be reached at syzkaller@googlegroups.com.
To test a patch for this bug, please reply with `#syz test`
(should be on a separate line).
The patch should be attached to the email.
Note: arguments like custom git repos and branches are not supported.
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2026-06-09 20:44 ` [syzbot ci] Re: netfilter: ipset fixes, second batch syzbot ci
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