releases/4.19.31/kallsyms-handle-too-long-symbols-in-kallsyms.c.patch

   1 From 9cf4ceebcf06a336d33666e6120b11afe2613eb3 Mon Sep 17 00:00:00 2001
   2 From: Eugene Loh <eugene.loh@oracle.com>
   3 Date: Thu, 17 Jan 2019 14:46:00 -0800
   4 Subject: kallsyms: Handle too long symbols in kallsyms.c
   5
   6 [ Upstream commit 6db2983cd8064808141ccefd75218f5b4345ffae ]
   7
   8 When checking for symbols with excessively long names,
   9 account for null terminating character.
  10
  11 Fixes: f3462aa952cf ("Kbuild: Handle longer symbols in kallsyms.c")
  12 Signed-off-by: Eugene Loh <eugene.loh@oracle.com>
  13 Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
  14 Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
  15 Signed-off-by: Sasha Levin <sashal@kernel.org>
  16 ---
  17  scripts/kallsyms.c | 4 ++--
  18  1 file changed, 2 insertions(+), 2 deletions(-)
  19
  20 diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
  21 index a9186a98a37d..0c9c54b57515 100644
  22 --- a/scripts/kallsyms.c
  23 +++ b/scripts/kallsyms.c
  24 @@ -120,8 +120,8 @@ static int read_symbol(FILE *in, struct sym_entry *s)
  25                         fprintf(stderr, "Read error or end of file.\n");
  26                 return -1;
  27         }
  28 -       if (strlen(sym) > KSYM_NAME_LEN) {
  29 -               fprintf(stderr, "Symbol %s too long for kallsyms (%zu vs %d).\n"
  30 +       if (strlen(sym) >= KSYM_NAME_LEN) {
  31 +               fprintf(stderr, "Symbol %s too long for kallsyms (%zu >= %d).\n"
  32                                 "Please increase KSYM_NAME_LEN both in kernel and kallsyms.c\n",
  33                         sym, strlen(sym), KSYM_NAME_LEN);
  34                 return -1;
  35 --
  36 2.19.1
  37