* Re: [PATCH nf v2] netfilter: nft_reject: prevent unbounded recursion in output hooks
[not found] <20260922092503.3238-1-fmancera@suse.de>
@ 2026-09-23 22:06 ` kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2026-09-23 22:06 UTC (permalink / raw)
To: Fernando Fernandez Mancera, netfilter-devel
Cc: llvm, oe-kbuild-all, coreteam, pablo, fw, phil, eric,
Fernando Fernandez Mancera, Yu Junzhe
Hi Fernando,
kernel test robot noticed the following build errors:
[auto build test ERROR on netfilter-nf/main]
url: https://github.com/intel-lab-lkp/linux/commits/Fernando-Fernandez-Mancera/netfilter-nft_reject-prevent-unbounded-recursion-in-output-hooks/20260922-112503
base: https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf.git main
patch link: https://lore.kernel.org/r/20260922092503.3238-1-fmancera%40suse.de
patch subject: [PATCH nf v2] netfilter: nft_reject: prevent unbounded recursion in output hooks
config: i386-defconfig (https://download.01.org/0day-ci/archive/20260924/202609240611.MRXjmn1k-lkp@intel.com/config)
compiler: clang version 22.1.3 (https://github.com/llvm/llvm-project e9846648fd6183ee6d8cbdb4502213fcf902a211)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260924/202609240611.MRXjmn1k-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202609240611.MRXjmn1k-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
>> include/net/netfilter/nf_recursion.h:12:52: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
12 | return unlikely(__this_cpu_read(softnet_data.xmit.nf_dup_skb_recursion) >
| ~~~~~~~~~~~~~~~~~ ^
include/linux/percpu-defs.h:432:15: note: expanded from macro '__this_cpu_read'
432 | raw_cpu_read(pcp); \
| ^~~
include/linux/percpu-defs.h:407:67: note: expanded from macro 'raw_cpu_read'
407 | #define raw_cpu_read(pcp) __pcpu_size_call_return(raw_cpu_read_, pcp)
| ^~~
include/linux/percpu-defs.h:317:16: note: expanded from macro '__pcpu_size_call_return'
317 | TYPEOF_UNQUAL(variable) pscr_ret__; \
| ^~~~~~~~
include/linux/compiler.h:237:47: note: expanded from macro 'TYPEOF_UNQUAL'
237 | # define TYPEOF_UNQUAL(exp) __typeof_unqual__(exp)
| ^~~
include/linux/compiler.h:77:42: note: expanded from macro 'unlikely'
77 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
>> include/net/netfilter/nf_recursion.h:12:52: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
12 | return unlikely(__this_cpu_read(softnet_data.xmit.nf_dup_skb_recursion) >
| ~~~~~~~~~~~~~~~~~ ^
include/linux/percpu-defs.h:432:15: note: expanded from macro '__this_cpu_read'
432 | raw_cpu_read(pcp); \
| ^~~
include/linux/percpu-defs.h:407:67: note: expanded from macro 'raw_cpu_read'
407 | #define raw_cpu_read(pcp) __pcpu_size_call_return(raw_cpu_read_, pcp)
| ^~~
include/linux/percpu-defs.h:318:22: note: expanded from macro '__pcpu_size_call_return'
318 | __verify_pcpu_ptr(&(variable)); \
| ^~~~~~~~
include/linux/percpu-defs.h:216:47: note: expanded from macro '__verify_pcpu_ptr'
216 | const void __percpu *__vpp_verify = (typeof((ptr) + 0))NULL; \
| ^~~
include/linux/compiler.h:77:42: note: expanded from macro 'unlikely'
77 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
>> include/net/netfilter/nf_recursion.h:12:52: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
12 | return unlikely(__this_cpu_read(softnet_data.xmit.nf_dup_skb_recursion) >
| ~~~~~~~~~~~~~~~~~ ^
include/linux/percpu-defs.h:432:15: note: expanded from macro '__this_cpu_read'
432 | raw_cpu_read(pcp); \
| ^~~
include/linux/percpu-defs.h:407:67: note: expanded from macro 'raw_cpu_read'
407 | #define raw_cpu_read(pcp) __pcpu_size_call_return(raw_cpu_read_, pcp)
| ^~~
include/linux/percpu-defs.h:319:16: note: expanded from macro '__pcpu_size_call_return'
319 | switch(sizeof(variable)) { \
| ^~~~~~~~
include/linux/compiler.h:77:42: note: expanded from macro 'unlikely'
77 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
>> include/net/netfilter/nf_recursion.h:12:52: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
12 | return unlikely(__this_cpu_read(softnet_data.xmit.nf_dup_skb_recursion) >
| ~~~~~~~~~~~~~~~~~ ^
include/linux/percpu-defs.h:432:15: note: expanded from macro '__this_cpu_read'
432 | raw_cpu_read(pcp); \
| ^~~
include/linux/percpu-defs.h:407:67: note: expanded from macro 'raw_cpu_read'
407 | #define raw_cpu_read(pcp) __pcpu_size_call_return(raw_cpu_read_, pcp)
| ^~~
include/linux/percpu-defs.h:320:31: note: expanded from macro '__pcpu_size_call_return'
320 | case 1: pscr_ret__ = stem##1(variable); break; \
| ^~~~~~~~
note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
arch/x86/include/asm/percpu.h:94:45: note: expanded from macro '__my_cpu_ptr'
94 | # define __my_cpu_ptr(ptr) (__my_cpu_type(*(ptr))*)(__force uintptr_t)(ptr)
| ^~~
arch/x86/include/asm/percpu.h:93:36: note: expanded from macro '__my_cpu_type'
93 | # define __my_cpu_type(var) typeof(var) __percpu_seg_override
| ^~~
include/linux/compiler.h:77:42: note: expanded from macro 'unlikely'
77 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
>> include/net/netfilter/nf_recursion.h:12:52: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
12 | return unlikely(__this_cpu_read(softnet_data.xmit.nf_dup_skb_recursion) >
| ~~~~~~~~~~~~~~~~~ ^
include/linux/percpu-defs.h:432:15: note: expanded from macro '__this_cpu_read'
432 | raw_cpu_read(pcp); \
| ^~~
include/linux/percpu-defs.h:407:67: note: expanded from macro 'raw_cpu_read'
407 | #define raw_cpu_read(pcp) __pcpu_size_call_return(raw_cpu_read_, pcp)
| ^~~
include/linux/percpu-defs.h:320:31: note: expanded from macro '__pcpu_size_call_return'
320 | case 1: pscr_ret__ = stem##1(variable); break; \
| ^~~~~~~~
note: (skipping 2 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
arch/x86/include/asm/percpu.h:95:45: note: expanded from macro '__my_cpu_var'
95 | # define __my_cpu_var(var) (*__my_cpu_ptr(&(var)))
| ^~~
arch/x86/include/asm/percpu.h:94:72: note: expanded from macro '__my_cpu_ptr'
94 | # define __my_cpu_ptr(ptr) (__my_cpu_type(*(ptr))*)(__force uintptr_t)(ptr)
| ^~~
include/linux/compiler.h:77:42: note: expanded from macro 'unlikely'
77 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
>> include/net/netfilter/nf_recursion.h:12:52: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
12 | return unlikely(__this_cpu_read(softnet_data.xmit.nf_dup_skb_recursion) >
| ~~~~~~~~~~~~~~~~~ ^
include/linux/percpu-defs.h:432:15: note: expanded from macro '__this_cpu_read'
432 | raw_cpu_read(pcp); \
| ^~~
include/linux/percpu-defs.h:407:67: note: expanded from macro 'raw_cpu_read'
407 | #define raw_cpu_read(pcp) __pcpu_size_call_return(raw_cpu_read_, pcp)
| ^~~
include/linux/percpu-defs.h:320:31: note: expanded from macro '__pcpu_size_call_return'
320 | case 1: pscr_ret__ = stem##1(variable); break; \
| ^~~~~~~~
arch/x86/include/asm/percpu.h:450:52: note: expanded from macro 'raw_cpu_read_1'
450 | #define raw_cpu_read_1(pcp) __raw_cpu_read(1, , pcp)
| ^~~
arch/x86/include/asm/percpu.h:156:10: note: expanded from macro '__raw_cpu_read'
156 | (typeof(_var))(unsigned long) pfo_val__; \
| ^~~~
include/linux/compiler.h:77:42: note: expanded from macro 'unlikely'
77 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
>> include/net/netfilter/nf_recursion.h:12:52: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
12 | return unlikely(__this_cpu_read(softnet_data.xmit.nf_dup_skb_recursion) >
| ~~~~~~~~~~~~~~~~~ ^
include/linux/percpu-defs.h:432:15: note: expanded from macro '__this_cpu_read'
432 | raw_cpu_read(pcp); \
| ^~~
include/linux/percpu-defs.h:407:67: note: expanded from macro 'raw_cpu_read'
407 | #define raw_cpu_read(pcp) __pcpu_size_call_return(raw_cpu_read_, pcp)
| ^~~
include/linux/percpu-defs.h:321:31: note: expanded from macro '__pcpu_size_call_return'
321 | case 2: pscr_ret__ = stem##2(variable); break; \
| ^~~~~~~~
note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
arch/x86/include/asm/percpu.h:94:45: note: expanded from macro '__my_cpu_ptr'
94 | # define __my_cpu_ptr(ptr) (__my_cpu_type(*(ptr))*)(__force uintptr_t)(ptr)
| ^~~
arch/x86/include/asm/percpu.h:93:36: note: expanded from macro '__my_cpu_type'
93 | # define __my_cpu_type(var) typeof(var) __percpu_seg_override
| ^~~
include/linux/compiler.h:77:42: note: expanded from macro 'unlikely'
77 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
>> include/net/netfilter/nf_recursion.h:12:52: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
12 | return unlikely(__this_cpu_read(softnet_data.xmit.nf_dup_skb_recursion) >
| ~~~~~~~~~~~~~~~~~ ^
include/linux/percpu-defs.h:432:15: note: expanded from macro '__this_cpu_read'
432 | raw_cpu_read(pcp); \
| ^~~
include/linux/percpu-defs.h:407:67: note: expanded from macro 'raw_cpu_read'
407 | #define raw_cpu_read(pcp) __pcpu_size_call_return(raw_cpu_read_, pcp)
| ^~~
include/linux/percpu-defs.h:321:31: note: expanded from macro '__pcpu_size_call_return'
321 | case 2: pscr_ret__ = stem##2(variable); break; \
| ^~~~~~~~
note: (skipping 2 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
arch/x86/include/asm/percpu.h:95:45: note: expanded from macro '__my_cpu_var'
95 | # define __my_cpu_var(var) (*__my_cpu_ptr(&(var)))
| ^~~
arch/x86/include/asm/percpu.h:94:72: note: expanded from macro '__my_cpu_ptr'
94 | # define __my_cpu_ptr(ptr) (__my_cpu_type(*(ptr))*)(__force uintptr_t)(ptr)
| ^~~
include/linux/compiler.h:77:42: note: expanded from macro 'unlikely'
77 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
>> include/net/netfilter/nf_recursion.h:12:52: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
12 | return unlikely(__this_cpu_read(softnet_data.xmit.nf_dup_skb_recursion) >
| ~~~~~~~~~~~~~~~~~ ^
include/linux/percpu-defs.h:432:15: note: expanded from macro '__this_cpu_read'
432 | raw_cpu_read(pcp); \
| ^~~
include/linux/percpu-defs.h:407:67: note: expanded from macro 'raw_cpu_read'
407 | #define raw_cpu_read(pcp) __pcpu_size_call_return(raw_cpu_read_, pcp)
| ^~~
include/linux/percpu-defs.h:321:31: note: expanded from macro '__pcpu_size_call_return'
321 | case 2: pscr_ret__ = stem##2(variable); break; \
| ^~~~~~~~
arch/x86/include/asm/percpu.h:451:52: note: expanded from macro 'raw_cpu_read_2'
451 | #define raw_cpu_read_2(pcp) __raw_cpu_read(2, , pcp)
| ^~~
arch/x86/include/asm/percpu.h:156:10: note: expanded from macro '__raw_cpu_read'
156 | (typeof(_var))(unsigned long) pfo_val__; \
| ^~~~
include/linux/compiler.h:77:42: note: expanded from macro 'unlikely'
77 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
>> include/net/netfilter/nf_recursion.h:12:52: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
12 | return unlikely(__this_cpu_read(softnet_data.xmit.nf_dup_skb_recursion) >
| ~~~~~~~~~~~~~~~~~ ^
include/linux/percpu-defs.h:432:15: note: expanded from macro '__this_cpu_read'
432 | raw_cpu_read(pcp); \
| ^~~
include/linux/percpu-defs.h:407:67: note: expanded from macro 'raw_cpu_read'
407 | #define raw_cpu_read(pcp) __pcpu_size_call_return(raw_cpu_read_, pcp)
| ^~~
include/linux/percpu-defs.h:322:31: note: expanded from macro '__pcpu_size_call_return'
322 | case 4: pscr_ret__ = stem##4(variable); break; \
| ^~~~~~~~
note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
arch/x86/include/asm/percpu.h:94:45: note: expanded from macro '__my_cpu_ptr'
94 | # define __my_cpu_ptr(ptr) (__my_cpu_type(*(ptr))*)(__force uintptr_t)(ptr)
| ^~~
arch/x86/include/asm/percpu.h:93:36: note: expanded from macro '__my_cpu_type'
93 | # define __my_cpu_type(var) typeof(var) __percpu_seg_override
| ^~~
include/linux/compiler.h:77:42: note: expanded from macro 'unlikely'
77 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
>> include/net/netfilter/nf_recursion.h:12:52: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
12 | return unlikely(__this_cpu_read(softnet_data.xmit.nf_dup_skb_recursion) >
| ~~~~~~~~~~~~~~~~~ ^
include/linux/percpu-defs.h:432:15: note: expanded from macro '__this_cpu_read'
432 | raw_cpu_read(pcp); \
| ^~~
include/linux/percpu-defs.h:407:67: note: expanded from macro 'raw_cpu_read'
407 | #define raw_cpu_read(pcp) __pcpu_size_call_return(raw_cpu_read_, pcp)
| ^~~
include/linux/percpu-defs.h:322:31: note: expanded from macro '__pcpu_size_call_return'
322 | case 4: pscr_ret__ = stem##4(variable); break; \
| ^~~~~~~~
note: (skipping 2 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
arch/x86/include/asm/percpu.h:95:45: note: expanded from macro '__my_cpu_var'
95 | # define __my_cpu_var(var) (*__my_cpu_ptr(&(var)))
| ^~~
arch/x86/include/asm/percpu.h:94:72: note: expanded from macro '__my_cpu_ptr'
94 | # define __my_cpu_ptr(ptr) (__my_cpu_type(*(ptr))*)(__force uintptr_t)(ptr)
| ^~~
include/linux/compiler.h:77:42: note: expanded from macro 'unlikely'
77 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
>> include/net/netfilter/nf_recursion.h:12:52: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
12 | return unlikely(__this_cpu_read(softnet_data.xmit.nf_dup_skb_recursion) >
| ~~~~~~~~~~~~~~~~~ ^
include/linux/percpu-defs.h:432:15: note: expanded from macro '__this_cpu_read'
432 | raw_cpu_read(pcp); \
| ^~~
include/linux/percpu-defs.h:407:67: note: expanded from macro 'raw_cpu_read'
407 | #define raw_cpu_read(pcp) __pcpu_size_call_return(raw_cpu_read_, pcp)
| ^~~
include/linux/percpu-defs.h:322:31: note: expanded from macro '__pcpu_size_call_return'
322 | case 4: pscr_ret__ = stem##4(variable); break; \
| ^~~~~~~~
arch/x86/include/asm/percpu.h:452:52: note: expanded from macro 'raw_cpu_read_4'
452 | #define raw_cpu_read_4(pcp) __raw_cpu_read(4, , pcp)
| ^~~
arch/x86/include/asm/percpu.h:156:10: note: expanded from macro '__raw_cpu_read'
156 | (typeof(_var))(unsigned long) pfo_val__; \
| ^~~~
include/linux/compiler.h:77:42: note: expanded from macro 'unlikely'
77 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
>> include/net/netfilter/nf_recursion.h:12:52: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
12 | return unlikely(__this_cpu_read(softnet_data.xmit.nf_dup_skb_recursion) >
| ~~~~~~~~~~~~~~~~~ ^
include/linux/percpu-defs.h:432:15: note: expanded from macro '__this_cpu_read'
432 | raw_cpu_read(pcp); \
| ^~~
include/linux/percpu-defs.h:407:67: note: expanded from macro 'raw_cpu_read'
407 | #define raw_cpu_read(pcp) __pcpu_size_call_return(raw_cpu_read_, pcp)
| ^~~
include/linux/percpu-defs.h:323:31: note: expanded from macro '__pcpu_size_call_return'
323 | case 8: pscr_ret__ = stem##8(variable); break; \
| ^~~~~~~~
note: (skipping 2 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/percpu-defs.h:240:20: note: expanded from macro 'raw_cpu_ptr'
240 | __verify_pcpu_ptr(ptr); \
| ^~~
include/linux/percpu-defs.h:216:47: note: expanded from macro '__verify_pcpu_ptr'
216 | const void __percpu *__vpp_verify = (typeof((ptr) + 0))NULL; \
| ^~~
include/linux/compiler.h:77:42: note: expanded from macro 'unlikely'
77 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
>> include/net/netfilter/nf_recursion.h:12:52: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
12 | return unlikely(__this_cpu_read(softnet_data.xmit.nf_dup_skb_recursion) >
| ~~~~~~~~~~~~~~~~~ ^
include/linux/percpu-defs.h:432:15: note: expanded from macro '__this_cpu_read'
432 | raw_cpu_read(pcp); \
| ^~~
include/linux/percpu-defs.h:407:67: note: expanded from macro 'raw_cpu_read'
407 | #define raw_cpu_read(pcp) __pcpu_size_call_return(raw_cpu_read_, pcp)
| ^~~
include/linux/percpu-defs.h:323:31: note: expanded from macro '__pcpu_size_call_return'
323 | case 8: pscr_ret__ = stem##8(variable); break; \
| ^~~~~~~~
note: (skipping 2 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/percpu-defs.h:241:19: note: expanded from macro 'raw_cpu_ptr'
241 | arch_raw_cpu_ptr(ptr); \
| ^~~
arch/x86/include/asm/percpu.h:66:39: note: expanded from macro 'arch_raw_cpu_ptr'
66 | tcp_ptr__ += (__force unsigned long)(_ptr); \
| ^~~~
include/linux/compiler.h:77:42: note: expanded from macro 'unlikely'
77 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
>> include/net/netfilter/nf_recursion.h:12:52: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
12 | return unlikely(__this_cpu_read(softnet_data.xmit.nf_dup_skb_recursion) >
| ~~~~~~~~~~~~~~~~~ ^
include/linux/percpu-defs.h:432:15: note: expanded from macro '__this_cpu_read'
432 | raw_cpu_read(pcp); \
| ^~~
include/linux/percpu-defs.h:407:67: note: expanded from macro 'raw_cpu_read'
407 | #define raw_cpu_read(pcp) __pcpu_size_call_return(raw_cpu_read_, pcp)
| ^~~
include/linux/percpu-defs.h:323:31: note: expanded from macro '__pcpu_size_call_return'
323 | case 8: pscr_ret__ = stem##8(variable); break; \
| ^~~~~~~~
note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
arch/x86/include/asm/percpu.h:67:19: note: expanded from macro 'arch_raw_cpu_ptr'
67 | (TYPEOF_UNQUAL(*(_ptr)) __force __kernel *)tcp_ptr__; \
| ^~~~
include/linux/compiler.h:237:47: note: expanded from macro 'TYPEOF_UNQUAL'
237 | # define TYPEOF_UNQUAL(exp) __typeof_unqual__(exp)
| ^~~
include/linux/compiler.h:77:42: note: expanded from macro 'unlikely'
77 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
include/net/netfilter/nf_recursion.h:18:35: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
18 | __this_cpu_inc(softnet_data.xmit.nf_dup_skb_recursion);
| ~~~~~~~~~~~~~~~~~ ^
include/linux/percpu-defs.h:484:45: note: expanded from macro '__this_cpu_inc'
484 | #define __this_cpu_inc(pcp) __this_cpu_add(pcp, 1)
| ^~~
include/linux/percpu-defs.h:444:14: note: expanded from macro '__this_cpu_add'
444 | raw_cpu_add(pcp, val); \
| ^~~
include/linux/percpu-defs.h:409:63: note: expanded from macro 'raw_cpu_add'
409 | #define raw_cpu_add(pcp, val) __pcpu_size_call(raw_cpu_add_, pcp, val)
| ^~~
include/linux/percpu-defs.h:362:22: note: expanded from macro '__pcpu_size_call'
362 | __verify_pcpu_ptr(&(variable)); \
| ^~~~~~~~
include/linux/percpu-defs.h:216:47: note: expanded from macro '__verify_pcpu_ptr'
216 | const void __percpu *__vpp_verify = (typeof((ptr) + 0))NULL; \
| ^~~
In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
include/net/netfilter/nf_recursion.h:18:35: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
18 | __this_cpu_inc(softnet_data.xmit.nf_dup_skb_recursion);
| ~~~~~~~~~~~~~~~~~ ^
include/linux/percpu-defs.h:484:45: note: expanded from macro '__this_cpu_inc'
484 | #define __this_cpu_inc(pcp) __this_cpu_add(pcp, 1)
| ^~~
include/linux/percpu-defs.h:444:14: note: expanded from macro '__this_cpu_add'
444 | raw_cpu_add(pcp, val); \
| ^~~
include/linux/percpu-defs.h:409:63: note: expanded from macro 'raw_cpu_add'
409 | #define raw_cpu_add(pcp, val) __pcpu_size_call(raw_cpu_add_, pcp, val)
| ^~~
include/linux/percpu-defs.h:363:16: note: expanded from macro '__pcpu_size_call'
363 | switch(sizeof(variable)) { \
| ^~~~~~~~
In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
include/net/netfilter/nf_recursion.h:18:35: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
18 | __this_cpu_inc(softnet_data.xmit.nf_dup_skb_recursion);
| ~~~~~~~~~~~~~~~~~ ^
include/linux/percpu-defs.h:484:45: note: expanded from macro '__this_cpu_inc'
484 | #define __this_cpu_inc(pcp) __this_cpu_add(pcp, 1)
| ^~~
include/linux/percpu-defs.h:444:14: note: expanded from macro '__this_cpu_add'
444 | raw_cpu_add(pcp, val); \
| ^~~
include/linux/percpu-defs.h:409:63: note: expanded from macro 'raw_cpu_add'
409 | #define raw_cpu_add(pcp, val) __pcpu_size_call(raw_cpu_add_, pcp, val)
| ^~~
note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
arch/x86/include/asm/percpu.h:468:56: note: expanded from macro 'raw_cpu_add_1'
468 | #define raw_cpu_add_1(pcp, val) percpu_add_op(1, , (pcp), val)
| ^~~
arch/x86/include/asm/percpu.h:226:17: note: expanded from macro 'percpu_add_op'
226 | TYPEOF_UNQUAL(var) pao_tmp__; \
| ^~~
include/linux/compiler.h:237:47: note: expanded from macro 'TYPEOF_UNQUAL'
237 | # define TYPEOF_UNQUAL(exp) __typeof_unqual__(exp)
| ^~~
In file included from net/ipv4/netfilter/nf_reject_ipv4.c:13:
include/net/netfilter/nf_recursion.h:18:35: error: no member named 'nf_dup_skb_recursion' in 'struct netdev_xmit'
18 | __this_cpu_inc(softnet_data.xmit.nf_dup_skb_recursion);
| ~~~~~~~~~~~~~~~~~ ^
include/linux/percpu-defs.h:484:45: note: expanded from macro '__this_cpu_inc'
484 | #define __this_cpu_inc(pcp) __this_cpu_add(pcp, 1)
| ^~~
include/linux/percpu-defs.h:444:14: note: expanded from macro '__this_cpu_add'
444 | raw_cpu_add(pcp, val); \
| ^~~
include/linux/percpu-defs.h:409:63: note: expanded from macro 'raw_cpu_add'
409 | #define raw_cpu_add(pcp, val) __pcpu_size_call(raw_cpu_add_, pcp, val)
| ^~~
note: (skipping 4 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
arch/x86/include/asm/percpu.h:95:45: note: expanded from macro '__my_cpu_var'
95 | # define __my_cpu_var(var) (*__my_cpu_ptr(&(var)))
| ^~~
arch/x86/include/asm/percpu.h:94:45: note: expanded from macro '__my_cpu_ptr'
94 | # define __my_cpu_ptr(ptr) (__my_cpu_type(*(ptr))*)(__force uintptr_t)(ptr)
| ^~~
arch/x86/include/asm/percpu.h:93:36: note: expanded from macro '__my_cpu_type'
vim +12 include/net/netfilter/nf_recursion.h
8
9 #ifndef CONFIG_PREEMPT_RT
10 static inline bool nf_dev_xmit_recursion(void)
11 {
> 12 return unlikely(__this_cpu_read(softnet_data.xmit.nf_dup_skb_recursion) >
13 NF_RECURSION_LIMIT);
14 }
15
--
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2026-09-23 22:06 ` [PATCH nf v2] netfilter: nft_reject: prevent unbounded recursion in output hooks kernel test robot
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