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  1. Lustre
  2. LU-5320

Use after free, double lock found by coccinelle

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Critical
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: Lustre 2.6.0
    • Labels:
    • Severity:
      3
    • Rank (Obsolete):
      14857

      Description

      When coccinelle (a static analyser) is run on the Lustre code, with the current Linux kernel scripts, it finds, amongst other things, the following errors:

        
lustre/include/obd_support.h:792:19-22: ERROR: reference preceded by free on line 791
lustre/ptlrpc/nrs_tbf.c:312:2-8: preceding lock on line 307
lustre/fid/fid_handler.c:73:43-51: ERROR: cli is NULL but dereferenced.
lustre/lfsck/lfsck_lib.c:1564:1-10: second lock on line 1571

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          Issue Links

          is related to

          Bug - A problem which impairs or prevents the functions of the product. LU-2753 Tracking bug for static code analysis fixes.

          • Trivial - Cosmetic problem like misspelt words or misaligned text.
          • Open

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              People

              • Assignee:
                jlevi Jodi Levi (Inactive)
                Reporter:
                fzago Frank Zago
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                Dates

                • Created:
                  Updated:
                  Resolved: