diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h index 481273f0c72d4256979ee0ba2b02a4b9629f4497..95abf7b408ae86bc382c02789e93e933fff291ea 100644 --- a/include/linux/kallsyms.h +++ b/include/linux/kallsyms.h @@ -14,7 +14,7 @@ #include -#define KSYM_NAME_LEN 128 +#define KSYM_NAME_LEN 512 #define KSYM_SYMBOL_LEN (sizeof("%s+%#lx/%#lx [%s]") + (KSYM_NAME_LEN - 1) + \ 2*(BITS_PER_LONG*3/10) + (MODULE_NAME_LEN - 1) + 1) diff --git a/kernel/livepatch/core.c b/kernel/livepatch/core.c index 780a825cee8be202f5de0f8d5a18e1b557413228..583fc30d8b97a7b1a37b004c194b0a1936c955af 100644 --- a/kernel/livepatch/core.c +++ b/kernel/livepatch/core.c @@ -287,7 +287,7 @@ static int klp_resolve_symbols(Elf_Shdr *sechdrs, const char *strtab, * we use the smallest/strictest upper bound possible (56, based on * the current definition of MODULE_NAME_LEN) to prevent overflows. */ - BUILD_BUG_ON(MODULE_NAME_LEN < 56 || KSYM_NAME_LEN != 128); + BUILD_BUG_ON(MODULE_NAME_LEN < 56 || KSYM_NAME_LEN != 512); #ifdef CONFIG_MODULES_USE_ELF_RELA relas = (Elf_Rela *) relasec->sh_addr; @@ -305,7 +305,7 @@ static int klp_resolve_symbols(Elf_Shdr *sechdrs, const char *strtab, /* Format: .klp.sym.sym_objname.sym_name,sympos */ cnt = sscanf(strtab + sym->st_name, - ".klp.sym.%55[^.].%127[^,],%lu", + ".klp.sym.%55[^.].%511[^,],%lu", sym_objname, sym_name, &sympos); if (cnt != 3) { pr_err("symbol %s has an incorrectly formatted name\n", diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c index 28348f6f560412901ab72187ad8e238aa27fa93f..604814c3ffee4a8b634b6def7b5535c9dbb92120 100644 --- a/scripts/kallsyms.c +++ b/scripts/kallsyms.c @@ -30,10 +30,10 @@ #define _stringify_1(x) #x #define _stringify(x) _stringify_1(x) -#define KSYM_NAME_LEN 128 +#define KSYM_NAME_LEN 512 /* A substantially bigger size than the current maximum. */ -#define KSYM_NAME_LEN_BUFFER 512 +#define KSYM_NAME_LEN_BUFFER 2048 _Static_assert( KSYM_NAME_LEN_BUFFER == KSYM_NAME_LEN * 4, "Please keep KSYM_NAME_LEN_BUFFER in sync with KSYM_NAME_LEN" diff --git a/tools/include/linux/kallsyms.h b/tools/include/linux/kallsyms.h index efb6c3f5f2a9a53a58e436fe120dd7b4d9880d8a..5a37ccbec54fbc603108ad9346c0351c8a3c56a8 100644 --- a/tools/include/linux/kallsyms.h +++ b/tools/include/linux/kallsyms.h @@ -6,7 +6,7 @@ #include #include -#define KSYM_NAME_LEN 128 +#define KSYM_NAME_LEN 512 struct module; diff --git a/tools/lib/perf/include/perf/event.h b/tools/lib/perf/include/perf/event.h index 4a24b855d3ce2a5ff22c0d83724aef1f4d5f74f4..564abffa47fbed8defe6c115d1b4dc92b25e3a09 100644 --- a/tools/lib/perf/include/perf/event.h +++ b/tools/lib/perf/include/perf/event.h @@ -85,7 +85,7 @@ struct perf_record_throttle { }; #ifndef KSYM_NAME_LEN -#define KSYM_NAME_LEN 256 +#define KSYM_NAME_LEN 512 #endif struct perf_record_ksymbol { diff --git a/tools/lib/symbol/kallsyms.h b/tools/lib/symbol/kallsyms.h index 72ab9870454baf15052fabb233ebcc04b27f94e3..542f9b059c3bd2502e8713fa995137e66b8503a5 100644 --- a/tools/lib/symbol/kallsyms.h +++ b/tools/lib/symbol/kallsyms.h @@ -7,7 +7,7 @@ #include #ifndef KSYM_NAME_LEN -#define KSYM_NAME_LEN 256 +#define KSYM_NAME_LEN 512 #endif static inline u8 kallsyms2elf_binding(char type)