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Linux 'other' group write access on /dev/shm semaphore file when Content Search Services (CSS) is integrated with Content Manager OnDemand (CMOD)

Troubleshooting


Problem

In this integration environment, Content Search Services makes use of a third party tool to perform text extraction from content as part of the search indexing process. The third party tool makes use of runtime semaphore object that, on Linux, is implemented as a file located in the /dev/shm file system location with a file access mode providing write permission to the 'other' group category. This particular access mode may violate certain customer IT policy.

Symptom

Once CMOD has begun ingesting document content into CSS, the CSS text extraction component will cause a semaphore-related file to be created in the Linux /dev/shm directory.

Performing the following Linux command line operations:

cd /dev/shm

ls -ltr

will result in a listing that includes the semaphore file whose name has the format:

sem.<random>.opt

and whose file system access rights are:

-rw-rw-rw-

showing that the access rights for 'other' group include write.

[{"Product":{"code":"SSNVNV","label":"FileNet Content Manager"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Component":"Content Search Services","Platform":[{"code":"PF016","label":"Linux"}],"Version":"5.2.1.7;5.2.1","Edition":"","Line of Business":{"code":"LOB76","label":"Data Platform"}},{"Product":{"code":"SSNW2F","label":"FileNet P8 Platform"},"Business Unit":{"code":"BU053","label":"Cloud \u0026 Data Platform"},"Component":" ","Platform":[{"code":"","label":""}],"Version":"","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]

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Document Information

Modified date:
28 April 2025

UID

swg22004772