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In function 'strlcat',
inlined from 'strcat' at include/linux/fortify-string.h:432:6,
inlined from 'setup_zfcpdump' at arch/s390/kernel/setup.c:309:2,
inlined from 'setup_arch' at arch/s390/kernel/setup.c:1009:2:
include/linux/fortify-string.h:57:33: warning: '__builtin_memcpy' writing 30 bytes into a region of size 0 overflows the destination [-Wstringop-overflow=]
57 | #define __underlying_memcpy __builtin_memcpy
| ^
include/linux/fortify-string.h:405:9: note: in expansion of macro '__underlying_memcpy'
405 | __underlying_memcpy(p + p_len, q, copy_len);
| ^~~~~~~~~~~~~~~~~~~
Seen under s390 and allyesconfig
Code to audit:
arch/s390/kernel/setup.c:
init/main.c:
include/linux/init.h:
arch/s390/include/asm/setup.h:
arch/s390/Kconfig:
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