[syzbot ci] Re: netfilter: ipset fixes, second batch

[syzbot ci <syzbot+ci586baf4859d7e73f@syzkaller.appspotmail.com>]

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.