lkdtm: fix memory leak of base
This case is supposed to read from a memory after it has been freed, but we missed freeing base if the memory 'val' could not be allocated. Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk> Signed-off-by: Kees Cook <keescook@chromium.org>
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@ -458,8 +458,10 @@ static void lkdtm_do_action(enum ctype which)
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break;
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val = kmalloc(len, GFP_KERNEL);
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if (!val)
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if (!val) {
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kfree(base);
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break;
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}
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*val = 0x12345678;
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base[offset] = *val;
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