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| author | Andrew Goodbody <andrew.goodbody@linaro.org> | 2025-06-30 12:57:10 +0100 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2025-07-08 18:15:20 -0600 |
| commit | c3b43eeaead77beef53a224c7d13346a0462b34d (patch) | |
| tree | 8e2a3f60594928b801a0f01e6634a99949638aa5 | |
| parent | 0ffd456516b5f0c126c9705d6b2368a45ee2353f (diff) | |
boot: pxe: Prevent evaluation of uninitialised variable
In the case where parse_sliteral returns an error then label_name
will not have been assigned to. In order to prevent evaluating
label_name in this case add a check for the return value of parse_sliteral.
Signed-off-by: Andrew Goodbody <andrew.goodbody@linaro.org>
| -rw-r--r-- | boot/pxe_utils.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/boot/pxe_utils.c b/boot/pxe_utils.c index 82f217aaf86..eb4d7723481 100644 --- a/boot/pxe_utils.c +++ b/boot/pxe_utils.c @@ -1348,7 +1348,7 @@ static int parse_pxefile_top(struct pxe_context *ctx, char *p, unsigned long bas case T_ONTIMEOUT: err = parse_sliteral(&p, &label_name); - if (label_name) { + if (err >= 0 && label_name) { if (cfg->default_label) free(cfg->default_label); @@ -1360,7 +1360,7 @@ static int parse_pxefile_top(struct pxe_context *ctx, char *p, unsigned long bas case T_FALLBACK: err = parse_sliteral(&p, &label_name); - if (label_name) { + if (err >= 0 && label_name) { if (cfg->fallback_label) free(cfg->fallback_label); |