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| author | Kees Cook <keescook@chromium.org> | 2023-09-15 22:15:23 +0200 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2023-10-02 18:48:52 +0200 |
| commit | e91673b8dc59d7370492c653b84680503cac3aec (patch) | |
| tree | a81d1734ea33fe9b6665ac26b8be53cb9c40c8ab /fs/ocfs2/slot_map.c | |
| parent | usb: atm: Use size_add() in call to struct_size() (diff) | |
| download | linux-e91673b8dc59d7370492c653b84680503cac3aec.tar.xz linux-e91673b8dc59d7370492c653b84680503cac3aec.zip | |
ocfs2: Annotate struct ocfs2_slot_info with __counted_by
Prepare for the coming implementation by GCC and Clang of the __counted_by
attribute. Flexible array members annotated with __counted_by can have
their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS
(for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family
functions).
As found with Coccinelle[1], add __counted_by for struct ocfs2_slot_info.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: ocfs2-devel@lists.linux.dev
Reviewed-by: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Link: https://lore.kernel.org/r/20230915201522.never.979-kees@kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'fs/ocfs2/slot_map.c')
| -rw-r--r-- | fs/ocfs2/slot_map.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ocfs2/slot_map.c b/fs/ocfs2/slot_map.c index da7718cef735..e544c704b583 100644 --- a/fs/ocfs2/slot_map.c +++ b/fs/ocfs2/slot_map.c @@ -37,7 +37,7 @@ struct ocfs2_slot_info { unsigned int si_blocks; struct buffer_head **si_bh; unsigned int si_num_slots; - struct ocfs2_slot si_slots[]; + struct ocfs2_slot si_slots[] __counted_by(si_num_slots); }; |