[GIT CHERRY-PICK 0/2] Fix compilation errors on GCC12

[Tales Aparecida]

Hello Alex,

I believe you are already working on a rebase right now, but could you please
cherry-pick these two commits from torvalds/master to fix compilation errors raised by
GCC12 in the meantime?

SHA-1:    82880283d7fcd0a1d20964a56d6d1a5cc0df0713
patch-id: 684ed745d944c90c2aae3c9eda5a4f5aa9cd48e5

SHA-1:    52a9dab6d892763b2a8334a568bd4e2c1a6fde66
patch-id: 6b15e90354234809c3e054332d5d37612c5995dc

Thanks in advance,
Tales

Kees Cook (1):
  libsubcmd: Fix use-after-free for realloc(..., 0)

Sergei Trofimovich (1):
  objtool: Fix truncated string warning

 tools/lib/subcmd/subcmd-util.h | 11 ++---------
 tools/objtool/check.c          |  2 +-
 2 files changed, 3 insertions(+), 10 deletions(-)

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2.37.0