Subject: [syzbot] [netfilter?] BUG: using smp_processor_id() in preemptible code in nft_inner_eval

From: syzbot <[email-masked]>
Date: Thu, 21 Nov 2024 16:02:22 -0800

Hello,

syzbot found the following issue on:

HEAD commit:    43fb83c17ba2 Merge tag 'soc-arm-6.13' of git://git.kernel...
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=17da1b78580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=e796b1bf154f93a7
dashboard link: https://syzkaller.appspot.com/bug?extid=84d0441b9860f0d63285
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/cdcbc016316b/disk-43fb83c1.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/f82505daa7c2/vmlinux-43fb83c1.xz
kernel image: https://storage.googleapis.com/syzbot-assets/74b0b41d70c6/bzImage-43fb83c1.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: [email-masked]

check_preemption_disabled: 3425 callbacks suppressed
BUG: using smp_processor_id() in preemptible [00000000] code: syz.3.1627/12102
caller is nft_inner_eval+0xda/0x18e0 net/netfilter/nft_inner.c:251
CPU: 1 UID: 0 PID: 12102 Comm: syz.3.1627 Not tainted 6.12.0-syzkaller-03657-g43fb83c17ba2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 check_preemption_disabled+0x10e/0x120 lib/smp_processor_id.c:49
 nft_inner_eval+0xda/0x18e0 net/netfilter/nft_inner.c:251
 expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]
 nft_do_chain+0x4ad/0x1da0 net/netfilter/nf_tables_core.c:288
 nft_do_chain_ipv4+0x202/0x320 net/netfilter/nft_chain_filter.c:23
 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
 nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626
 nf_hook+0x2c4/0x450 include/linux/netfilter.h:269
 NF_HOOK_COND include/linux/netfilter.h:302 [inline]
 ip_output+0x185/0x230 net/ipv4/ip_output.c:434
 ip_local_out net/ipv4/ip_output.c:130 [inline]
 ip_send_skb+0x74/0x100 net/ipv4/ip_output.c:1496
 udp_send_skb+0xab6/0x1630 net/ipv4/udp.c:984
 udp_sendmsg+0x1c21/0x2a60 net/ipv4/udp.c:1272
 sock_sendmsg_nosec net/socket.c:711 [inline]
 __sock_sendmsg+0x1a6/0x270 net/socket.c:726
 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2581
 ___sys_sendmsg net/socket.c:2635 [inline]
 __sys_sendmmsg+0x36a/0x720 net/socket.c:2724
 __do_sys_sendmmsg net/socket.c:2751 [inline]
 __se_sys_sendmmsg net/socket.c:2748 [inline]
 __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2748
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1c1ff7e819
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1c20db5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f1c20135fa0 RCX: 00007f1c1ff7e819
RDX: 000000000000002d RSI: 0000000020007fc0 RDI: 0000000000000007
RBP: 00007f1c1fff175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1c20135fa0 R15: 00007ffef663cd18
 </TASK>
BUG: using smp_processor_id() in preemptible [00000000] code: syz.3.1627/12102
caller is nft_inner_eval+0xda/0x18e0 net/netfilter/nft_inner.c:251
CPU: 0 UID: 0 PID: 12102 Comm: syz.3.1627 Not tainted 6.12.0-syzkaller-03657-g43fb83c17ba2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 check_preemption_disabled+0x10e/0x120 lib/smp_processor_id.c:49
 nft_inner_eval+0xda/0x18e0 net/netfilter/nft_inner.c:251
 expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]
 nft_do_chain+0x4ad/0x1da0 net/netfilter/nf_tables_core.c:288
 nft_do_chain_ipv4+0x202/0x320 net/netfilter/nft_chain_filter.c:23
 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
 nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626
 nf_hook+0x2c4/0x450 include/linux/netfilter.h:269
 NF_HOOK_COND include/linux/netfilter.h:302 [inline]
 ip_output+0x185/0x230 net/ipv4/ip_output.c:434
 ip_local_out net/ipv4/ip_output.c:130 [inline]
 ip_send_skb+0x74/0x100 net/ipv4/ip_output.c:1496
 udp_send_skb+0xab6/0x1630 net/ipv4/udp.c:984
 udp_sendmsg+0x1c21/0x2a60 net/ipv4/udp.c:1272
 sock_sendmsg_nosec net/socket.c:711 [inline]
 __sock_sendmsg+0x1a6/0x270 net/socket.c:726
 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2581
 ___sys_sendmsg net/socket.c:2635 [inline]
 __sys_sendmmsg+0x36a/0x720 net/socket.c:2724
 __do_sys_sendmmsg net/socket.c:2751 [inline]
 __se_sys_sendmmsg net/socket.c:2748 [inline]
 __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2748
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1c1ff7e819
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1c20db5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f1c20135fa0 RCX: 00007f1c1ff7e819
RDX: 000000000000002d RSI: 0000000020007fc0 RDI: 0000000000000007
RBP: 00007f1c1fff175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1c20135fa0 R15: 00007ffef663cd18
 </TASK>
BUG: using smp_processor_id() in preemptible [00000000] code: syz.3.1627/12102
caller is nft_inner_eval+0xda/0x18e0 net/netfilter/nft_inner.c:251
CPU: 0 UID: 0 PID: 12102 Comm: syz.3.1627 Not tainted 6.12.0-syzkaller-03657-g43fb83c17ba2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 check_preemption_disabled+0x10e/0x120 lib/smp_processor_id.c:49
 nft_inner_eval+0xda/0x18e0 net/netfilter/nft_inner.c:251
 expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]
 nft_do_chain+0x4ad/0x1da0 net/netfilter/nf_tables_core.c:288
 nft_do_chain_ipv4+0x202/0x320 net/netfilter/nft_chain_filter.c:23
 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
 nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626
 nf_hook+0x2c4/0x450 include/linux/netfilter.h:269
 NF_HOOK_COND include/linux/netfilter.h:302 [inline]
 ip_output+0x185/0x230 net/ipv4/ip_output.c:434
 ip_local_out net/ipv4/ip_output.c:130 [inline]
 ip_send_skb+0x74/0x100 net/ipv4/ip_output.c:1496
 udp_send_skb+0xab6/0x1630 net/ipv4/udp.c:984
 udp_sendmsg+0x1c21/0x2a60 net/ipv4/udp.c:1272
 sock_sendmsg_nosec net/socket.c:711 [inline]
 __sock_sendmsg+0x1a6/0x270 net/socket.c:726
 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2581
 ___sys_sendmsg net/socket.c:2635 [inline]
 __sys_sendmmsg+0x36a/0x720 net/socket.c:2724
 __do_sys_sendmmsg net/socket.c:2751 [inline]
 __se_sys_sendmmsg net/socket.c:2748 [inline]
 __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2748
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1c1ff7e819
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1c20db5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f1c20135fa0 RCX: 00007f1c1ff7e819
RDX: 000000000000002d RSI: 0000000020007fc0 RDI: 0000000000000007
RBP: 00007f1c1fff175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1c20135fa0 R15: 00007ffef663cd18
 </TASK>
BUG: using smp_processor_id() in preemptible [00000000] code: syz.3.1627/12102
caller is nft_inner_eval+0xda/0x18e0 net/netfilter/nft_inner.c:251
CPU: 0 UID: 0 PID: 12102 Comm: syz.3.1627 Not tainted 6.12.0-syzkaller-03657-g43fb83c17ba2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 check_preemption_disabled+0x10e/0x120 lib/smp_processor_id.c:49
 nft_inner_eval+0xda/0x18e0 net/netfilter/nft_inner.c:251
 expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]
 nft_do_chain+0x4ad/0x1da0 net/netfilter/nf_tables_core.c:288
 nft_do_chain_ipv4+0x202/0x320 net/netfilter/nft_chain_filter.c:23
 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
 nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626
 nf_hook+0x2c4/0x450 include/linux/netfilter.h:269
 NF_HOOK_COND include/linux/netfilter.h:302 [inline]
 ip_output+0x185/0x230 net/ipv4/ip_output.c:434
 ip_local_out net/ipv4/ip_output.c:130 [inline]
 ip_send_skb+0x74/0x100 net/ipv4/ip_output.c:1496
 udp_send_skb+0xab6/0x1630 net/ipv4/udp.c:984
 udp_sendmsg+0x1c21/0x2a60 net/ipv4/udp.c:1272
 sock_sendmsg_nosec net/socket.c:711 [inline]
 __sock_sendmsg+0x1a6/0x270 net/socket.c:726
 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2581
 ___sys_sendmsg net/socket.c:2635 [inline]
 __sys_sendmmsg+0x36a/0x720 net/socket.c:2724
 __do_sys_sendmmsg net/socket.c:2751 [inline]
 __se_sys_sendmmsg net/socket.c:2748 [inline]
 __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2748
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1c1ff7e819
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1c20db5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f1c20135fa0 RCX: 00007f1c1ff7e819
RDX: 000000000000002d RSI: 0000000020007fc0 RDI: 0000000000000007
RBP: 00007f1c1fff175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1c20135fa0 R15: 00007ffef663cd18
 </TASK>
BUG: using smp_processor_id() in preemptible [00000000] code: syz.3.1627/12102
caller is nft_inner_eval+0xda/0x18e0 net/netfilter/nft_inner.c:251
CPU: 0 UID: 0 PID: 12102 Comm: syz.3.1627 Not tainted 6.12.0-syzkaller-03657-g43fb83c17ba2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 check_preemption_disabled+0x10e/0x120 lib/smp_processor_id.c:49
 nft_inner_eval+0xda/0x18e0 net/netfilter/nft_inner.c:251
 expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]
 nft_do_chain+0x4ad/0x1da0 net/netfilter/nf_tables_core.c:288
 nft_do_chain_ipv4+0x202/0x320 net/netfilter/nft_chain_filter.c:23
 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
 nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626
 nf_hook+0x2c4/0x450 include/linux/netfilter.h:269
 NF_HOOK_COND include/linux/netfilter.h:302 [inline]
 ip_output+0x185/0x230 net/ipv4/ip_output.c:434
 ip_local_out net/ipv4/ip_output.c:130 [inline]
 ip_send_skb+0x74/0x100 net/ipv4/ip_output.c:1496
 udp_send_skb+0xab6/0x1630 net/ipv4/udp.c:984
 udp_sendmsg+0x1c21/0x2a60 net/ipv4/udp.c:1272
 sock_sendmsg_nosec net/socket.c:711 [inline]
 __sock_sendmsg+0x1a6/0x270 net/socket.c:726
 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2581
 ___sys_sendmsg net/socket.c:2635 [inline]
 __sys_sendmmsg+0x36a/0x720 net/socket.c:2724
 __do_sys_sendmmsg net/socket.c:2751 [inline]
 __se_sys_sendmmsg net/socket.c:2748 [inline]
 __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2748
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1c1ff7e819
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1c20db5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f1c20135fa0 RCX: 00007f1c1ff7e819
RDX: 000000000000002d RSI: 0000000020007fc0 RDI: 0000000000000007
RBP: 00007f1c1fff175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1c20135fa0 R15: 00007ffef663cd18
 </TASK>
BUG: using smp_processor_id() in preemptible [00000000] code: syz.3.1627/12102
caller is nft_inner_eval+0xda/0x18e0 net/netfilter/nft_inner.c:251
CPU: 0 UID: 0 PID: 12102 Comm: syz.3.1627 Not tainted 6.12.0-syzkaller-03657-g43fb83c17ba2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 check_preemption_disabled+0x10e/0x120 lib/smp_processor_id.c:49
 nft_inner_eval+0xda/0x18e0 net/netfilter/nft_inner.c:251
 expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]
 nft_do_chain+0x4ad/0x1da0 net/netfilter/nf_tables_core.c:288
 nft_do_chain_ipv4+0x202/0x320 net/netfilter/nft_chain_filter.c:23
 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
 nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626
 nf_hook+0x2c4/0x450 include/linux/netfilter.h:269
 NF_HOOK_COND include/linux/netfilter.h:302 [inline]
 ip_output+0x185/0x230 net/ipv4/ip_output.c:434
 ip_local_out net/ipv4/ip_output.c:130 [inline]
 ip_send_skb+0x74/0x100 net/ipv4/ip_output.c:1496
 udp_send_skb+0xab6/0x1630 net/ipv4/udp.c:984
 udp_sendmsg+0x1c21/0x2a60 net/ipv4/udp.c:1272
 sock_sendmsg_nosec net/socket.c:711 [inline]
 __sock_sendmsg+0x1a6/0x270 net/socket.c:726
 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2581
 ___sys_sendmsg net/socket.c:2635 [inline]
 __sys_sendmmsg+0x36a/0x720 net/socket.c:2724
 __do_sys_sendmmsg net/socket.c:2751 [inline]
 __se_sys_sendmmsg net/socket.c:2748 [inline]
 __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2748
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1c1ff7e819
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1c20db5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f1c20135fa0 RCX: 00007f1c1ff7e819
RDX: 000000000000002d RSI: 0000000020007fc0 RDI: 0000000000000007
RBP: 00007f1c1fff175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1c20135fa0 R15: 00007ffef663cd18
 </TASK>
BUG: using smp_processor_id() in preemptible [00000000] code: syz.3.1627/12102
caller is nft_inner_eval+0xda/0x18e0 net/netfilter/nft_inner.c:251
CPU: 0 UID: 0 PID: 12102 Comm: syz.3.1627 Not tainted 6.12.0-syzkaller-03657-g43fb83c17ba2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 check_preemption_disabled+0x10e/0x120 lib/smp_processor_id.c:49
 nft_inner_eval+0xda/0x18e0 net/netfilter/nft_inner.c:251
 expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]
 nft_do_chain+0x4ad/0x1da0 net/netfilter/nf_tables_core.c:288
 nft_do_chain_ipv4+0x202/0x320 net/netfilter/nft_chain_filter.c:23
 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
 nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626
 nf_hook+0x2c4/0x450 include/linux/netfilter.h:269
 NF_HOOK_COND include/linux/netfilter.h:302 [inline]
 ip_output+0x185/0x230 net/ipv4/ip_output.c:434
 ip_local_out net/ipv4/ip_output.c:130 [inline]
 ip_send_skb+0x74/0x100 net/ipv4/ip_output.c:1496
 udp_send_skb+0xab6/0x1630 net/ipv4/udp.c:984
 udp_sendmsg+0x1c21/0x2a60 net/ipv4/udp.c:1272
 sock_sendmsg_nosec net/socket.c:711 [inline]
 __sock_sendmsg+0x1a6/0x270 net/socket.c:726
 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2581
 ___sys_sendmsg net/socket.c:2635 [inline]
 __sys_sendmmsg+0x36a/0x720 net/socket.c:2724
 __do_sys_sendmmsg net/socket.c:2751 [inline]
 __se_sys_sendmmsg net/socket.c:2748 [inline]
 __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2748
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1c1ff7e819
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1c20db5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f1c20135fa0 RCX: 00007f1c1ff7e819
RDX: 000000000000002d RSI: 0000000020007fc0 RDI: 0000000000000007
RBP: 00007f1c1fff175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1c20135fa0 R15: 00007ffef663cd18
 </TASK>
BUG: using smp_processor_id() in preemptible [00000000] code: syz.3.1627/12102
caller is nft_inner_eval+0xda/0x18e0 net/netfilter/nft_inner.c:251
CPU: 0 UID: 0 PID: 12102 Comm: syz.3.1627 Not tainted 6.12.0-syzkaller-03657-g43fb83c17ba2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 check_preemption_disabled+0x10e/0x120 lib/smp_processor_id.c:49
 nft_inner_eval+0xda/0x18e0 net/netfilter/nft_inner.c:251
 expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]
 nft_do_chain+0x4ad/0x1da0 net/netfilter/nf_tables_core.c:288
 nft_do_chain_ipv4+0x202/0x320 net/netfilter/nft_chain_filter.c:23
 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
 nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626
 nf_hook+0x2c4/0x450 include/linux/netfilter.h:269
 NF_HOOK_COND include/linux/netfilter.h:302 [inline]
 ip_output+0x185/0x230 net/ipv4/ip_output.c:434
 ip_local_out net/ipv4/ip_output.c:130 [inline]
 ip_send_skb+0x74/0x100 net/ipv4/ip_output.c:1496
 udp_send_skb+0xab6/0x1630 net/ipv4/udp.c:984
 udp_sendmsg+0x1c21/0x2a60 net/ipv4/udp.c:1272
 sock_sendmsg_nosec net/socket.c:711 [inline]
 __sock_sendmsg+0x1a6/0x270 net/socket.c:726
 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2581
 ___sys_sendmsg net/socket.c:2635 [inline]
 __sys_sendmmsg+0x36a/0x720 net/socket.c:2724
 __do_sys_sendmmsg net/socket.c:2751 [inline]
 __se_sys_sendmmsg net/socket.c:2748 [inline]
 __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2748
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1c1ff7e819
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1c20db5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f1c20135fa0 RCX: 00007f1c1ff7e819
RDX: 000000000000002d RSI: 0000000020007fc0 RDI: 0000000000000007
RBP: 00007f1c1fff175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1c20135fa0 R15: 00007ffef663cd18
 </TASK>
BUG: using smp_processor_id() in preemptible [00000000] code: syz.3.1627/12102
caller is nft_inner_eval+0xda/0x18e0 net/netfilter/nft_inner.c:251
CPU: 0 UID: 0 PID: 12102 Comm: syz.3.1627 Not tainted 6.12.0-syzkaller-03657-g43fb83c17ba2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 check_preemption_disabled+0x10e/0x120 lib/smp_processor_id.c:49
 nft_inner_eval+0xda/0x18e0 net/netfilter/nft_inner.c:251
 expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]
 nft_do_chain+0x4ad/0x1da0 net/netfilter/nf_tables_core.c:288
 nft_do_chain_ipv4+0x202/0x320 net/netfilter/nft_chain_filter.c:23
 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
 nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626
 nf_hook+0x2c4/0x450 include/linux/netfilter.h:269
 NF_HOOK_COND include/linux/netfilter.h:302 [inline]
 ip_output+0x185/0x230 net/ipv4/ip_output.c:434
 ip_local_out net/ipv4/ip_output.c:130 [inline]
 ip_send_skb+0x74/0x100 net/ipv4/ip_output.c:1496
 udp_send_skb+0xab6/0x1630 net/ipv4/udp.c:984
 udp_sendmsg+0x1c21/0x2a60 net/ipv4/udp.c:1272
 sock_sendmsg_nosec net/socket.c:711 [inline]
 __sock_sendmsg+0x1a6/0x270 net/socket.c:726
 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2581
 ___sys_sendmsg net/socket.c:2635 [inline]
 __sys_sendmmsg+0x36a/0x720 net/socket.c:2724
 __do_sys_sendmmsg net/socket.c:2751 [inline]
 __se_sys_sendmmsg net/socket.c:2748 [inline]
 __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2748
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1c1ff7e819
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1c20db5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f1c20135fa0 RCX: 00007f1c1ff7e819
RDX: 000000000000002d RSI: 0000000020007fc0 RDI: 0000000000000007
RBP: 00007f1c1fff175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1c20135fa0 R15: 00007ffef663cd18
 </TASK>
BUG: using smp_processor_id() in preemptible [00000000] code: syz.3.1627/12102
caller is nft_inner_eval+0xda/0x18e0 net/netfilter/nft_inner.c:251
CPU: 1 UID: 0 PID: 12102 Comm: syz.3.1627 Not tainted 6.12.0-syzkaller-03657-g43fb83c17ba2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 check_preemption_disabled+0x10e/0x120 lib/smp_processor_id.c:49
 nft_inner_eval+0xda/0x18e0 net/netfilter/nft_inner.c:251
 expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]
 nft_do_chain+0x4ad/0x1da0 net/netfilter/nf_tables_core.c:288
 nft_do_chain_ipv4+0x202/0x320 net/netfilter/nft_chain_filter.c:23
 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
 nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626
 nf_hook+0x2c4/0x450 include/linux/netfilter.h:269
 NF_HOOK_COND include/linux/netfilter.h:302 [inline]
 ip_output+0x185/0x230 net/ipv4/ip_output.c:434
 ip_local_out net/ipv4/ip_output.c:130 [inline]
 ip_send_skb+0x74/0x100 net/ipv4/ip_output.c:1496
 udp_send_skb+0xab6/0x1630 net/ipv4/udp.c:984
 udp_sendmsg+0x1c21/0x2a60 net/ipv4/udp.c:1272
 sock_sendmsg_nosec net/socket.c:711 [inline]
 __sock_sendmsg+0x1a6/0x270 net/socket.c:726
 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2581
 ___sys_sendmsg net/socket.c:2635 [inline]
 __sys_sendmmsg+0x36a/0x720 net/socket.c:2724
 __do_sys_sendmmsg net/socket.c:2751 [inline]
 __se_sys_sendmmsg net/socket.c:2748 [inline]
 __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2748
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1c1ff7e819
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1c20db5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f1c20135fa0 RCX: 00007f1c1ff7e819
RDX: 000000000000002d RSI: 0000000020007fc0 RDI: 0000000000000007
RBP: 00007f1c1fff175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1c20135fa0 R15: 00007ffef663cd18
 </TASK>

---
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