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authorMichael Ellerman <mpe@ellerman.id.au>2018-10-19 15:21:09 +1100
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2018-12-22 08:21:03 -0500
commit29924e5030969c55dbe68074215be5a1f14f1ff1 (patch)
tree8c30ef84c9ce2bcd0fb62e9e12bde05207eb489c
parent0464ed24380905d640030d368cd84a4e4d1e15e2 (diff)
downloadlinux-29924e5030969c55dbe68074215be5a1f14f1ff1.tar.gz
seq_buf: Use size_t for len in seq_buf_puts()
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>
-rw-r--r--lib/seq_buf.c2
1 files changed, 1 insertions, 1 deletions
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);