Messages in this thread Patch in this message | | | Date | Fri, 21 Dec 2018 12:56:28 -0500 | From | Steven Rostedt <> | Subject | [for-next][PATCH 10/24] seq_buf: Use size_t for len in seq_buf_puts() |
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From: Michael Ellerman <mpe@ellerman.id.au>
Jann Horn points out that we're using unsigned int for len in seq_buf_puts(), which could potentially overflow if we're passed a UINT_MAX sized string.
The rest of the code already uses size_t, so we should also use that in seq_buf_puts() to avoid any issues.
Link: http://lkml.kernel.org/r/20181019042109.8064-2-mpe@ellerman.id.au
Suggested-by: Jann Horn <jannh@google.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> --- lib/seq_buf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/seq_buf.c b/lib/seq_buf.c index 6aabb609dd87..bd807f545a9d 100644 --- a/lib/seq_buf.c +++ b/lib/seq_buf.c @@ -140,7 +140,7 @@ int seq_buf_bprintf(struct seq_buf *s, const char *fmt, const u32 *binary) */ int seq_buf_puts(struct seq_buf *s, const char *str) { - unsigned int len = strlen(str); + size_t len = strlen(str); WARN_ON(s->size == 0); -- 2.19.2
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