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efi_loader: memory leak in append value

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When printing an UEFI variable an error may arise while converting an
illegal hexadecimal value. In this case a buffer is leaked.

Close the memory leak. Provide an error message.

Reported-by: Coverity (CID 185830)
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
Heinrich Schuchardt 2019-04-30 07:14:09 +02:00
parent 39a1ff8cea
commit 45203e0ccb
1 changed files with 4 additions and 1 deletions
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5
cmd/nvedit_efi.c
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@ -291,8 +291,11 @@ static int append_value(char **bufp, size_t *sizep, char *data)
if (!tmp_buf)
return -1;
if (hex2bin((u8 *)tmp_buf, data, len) < 0)
if (hex2bin((u8 *)tmp_buf, data, len) < 0) {
printf("Error: illegal hexadecimal string\n");
free(tmp_buf);
return -1;
}
value = tmp_buf;
} else { /* string */