[PATCH v6 0/2] lib/vsprintf: Fixes size check

From: Masami Hiramatsu (Google)

Date: Thu Mar 26 2026 - 08:13:23 EST


Hi,

Here is the 6th version of patches to fix vsnprintf().

- Fix to limit the size of width and precision.
- Warn if the return size is over INT_MAX.

Previous version is here;

https://lore.kernel.org/all/177444525139.185641.12184379647176430297.stgit@devnote2/

This version just makes function header and WARN_ONCE() to one line[1/2].
No functional change.

Thank you,

---

Masami Hiramatsu (Google) (2):
lib/vsprintf: Fix to check field_width and precision
lib/vsprintf: Limit the returning size to INT_MAX


lib/vsprintf.c | 51 +++++++++++++++++++++++++++------------------------
1 file changed, 27 insertions(+), 24 deletions(-)

--
Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>