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author | Kees Cook <keescook@chromium.org> | 2022-01-20 05:09:47 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-01-20 09:52:54 +0300 |
commit | e35fa567a082a7547a4ec21e50a27eecf38961aa (patch) | |
tree | c9cc3f5d75f49a69cdd730b5254ead6331297b81 /fs/fat/file.c | |
parent | e1ce8a97befa98566f49acb99c79cc233cf3a703 (diff) | |
download | linux-e35fa567a082a7547a4ec21e50a27eecf38961aa.tar.xz |
hfsplus: use struct_group_attr() for memcpy() region
In preparation for FORTIFY_SOURCE performing compile-time and run-time
field bounds checking for memset(), avoid intentionally writing across
neighboring fields.
Add struct_group() to mark the "info" region (containing struct DInfo
and struct DXInfo structs) in struct hfsplus_cat_folder and struct
hfsplus_cat_file that are written into directly, so the compiler can
correctly reason about the expected size of the writes.
"pahole" shows no size nor member offset changes to struct
hfsplus_cat_folder nor struct hfsplus_cat_file. "objdump -d" shows no
object code changes.
Link: https://lkml.kernel.org/r/20211119192851.1046717-1-keescook@chromium.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/fat/file.c')
0 files changed, 0 insertions, 0 deletions