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  1. JDK
  2. JDK-8332589

ubsan: unix/native/libjava/ProcessImpl_md.c:562:5: runtime error: null pointer passed as argument 2, which is declared to never be null

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    • b25
    • generic
    • linux
    • Verified

    Backports

      Description

        When building with ubsan enabled (--enable-uban) on Linux x86_64 and doing jtreg tests afterwards I run into this error :

        /jdk/src/java.base/unix/native/libjava/ProcessImpl_md.c:562:5: runtime error: null pointer passed as argument 2, which is declared to never be null
            #0 0x7fd95bec78d8 in spawnChild /jdk/src/java.base/unix/native/libjava/ProcessImpl_md.c:562
            #1 0x7fd95bec78d8 in startChild /jdk/src/java.base/unix/native/libjava/ProcessImpl_md.c:612
            #2 0x7fd95bec78d8 in Java_java_lang_ProcessImpl_forkAndExec /jdk/src/java.base/unix/native/libjava/ProcessImpl_md.c:712
            #3 0x7fd93797a06d (<unknown module>)

        this is the memcpy call getting an unexpected null pointer :
            memcpy(buf+offset, c->pdir, sp.dirlen); gets a second parameter null.
        Something similar was discussed and fixed here https://bugs.python.org/issue27570 for Python .

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            backported by

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8333878 ubsan: unix/native/libjava/ProcessImpl_md.c:562:5: runtime error: null pointer passed as argument 2, which is declared to never be null

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8339405 ubsan: unix/native/libjava/ProcessImpl_md.c:562:5: runtime error: null pointer passed as argument 2, which is declared to never be null

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved
            relates to

            Bug - A problem which impairs or prevents the functions of the product. JDK-8332473 ubsan: growableArray.hpp:290:10: runtime error: null pointer passed as argument 1, which is declared to never be null

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved
            links to

            Commit Commit openjdk/jdk21u-dev/e55dd270

            Commit Commit openjdk/jdk/16dba04e

            Commit Commit(master) openjdk/jdk17u-dev/90b0fb02

            Review Review openjdk/jdk21u-dev/677

            Review Review openjdk/jdk/19329

            Review Review(master) openjdk/jdk17u-dev/2834

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                mbaesken Matthias Baesken
                mbaesken Matthias Baesken
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