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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2022-12-12 21:47:03 +0300 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2022-12-12 21:47:03 +0300 |
| commit | e291c116f60f3c1ca98090f0f8e7c77e658562fb (patch) | |
| tree | 2fbe810f2a6f8b29f1cdaefd87b24debbfa0ec07 /lib/string.c | |
| parent | 8c9a59939deb4bfafdc451100c03d1e848b4169b (diff) | |
| parent | c3991107a28a5ad0bd90660ca3bbf8c2c220ea98 (diff) | |
| download | linux-e291c116f60f3c1ca98090f0f8e7c77e658562fb.tar.xz | |
Merge branch 'next' into for-linus
Prepare input updates for 6.2 merge window.
Diffstat (limited to 'lib/string.c')
| -rw-r--r-- | lib/string.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/string.c b/lib/string.c index 6f334420f687..3371d26a0e39 100644 --- a/lib/string.c +++ b/lib/string.c @@ -197,6 +197,14 @@ ssize_t strscpy(char *dest, const char *src, size_t count) max = 0; #endif + /* + * read_word_at_a_time() below may read uninitialized bytes after the + * trailing zero and use them in comparisons. Disable this optimization + * under KMSAN to prevent false positive reports. + */ + if (IS_ENABLED(CONFIG_KMSAN)) + max = 0; + while (max >= sizeof(unsigned long)) { unsigned long c, data; |