android_kernel_xiaomi_sm8350/fs/coda
Kees Cook 0467681f09 coda: Avoid partial allocation of sig_inputArgs
[ Upstream commit 48df133578c70185a95a49390d42df1996ddba2a ]

GCC does not like having a partially allocated object, since it cannot
reason about it for bounds checking when it is passed to other code.
Instead, fully allocate sig_inputArgs. (Alternatively, sig_inputArgs
should be defined as a struct coda_in_hdr, if it is actually not using
any other part of the union.) Seen under GCC 13:

../fs/coda/upcall.c: In function 'coda_upcall':
../fs/coda/upcall.c:801:22: warning: array subscript 'union inputArgs[0]' is partly outside array bounds of 'unsigned char[20]' [-Warray-bounds=]
  801 |         sig_inputArgs->ih.opcode = CODA_SIGNAL;
      |                      ^~

Cc: Jan Harkes <jaharkes@cs.cmu.edu>
Cc: coda@cs.cmu.edu
Cc: codalist@coda.cs.cmu.edu
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20230127223921.never.882-kees@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-11 16:43:56 +01:00
..
cache.c
cnode.c
coda_cache.h
coda_fs_i.h
coda_int.h
coda_linux.c
coda_linux.h
coda_psdev.h
dir.c
file.c
inode.c
Kconfig
Makefile
pioctl.c
psdev.c
symlink.c
sysctl.c
upcall.c