[Bug libc/22678] New: prlimit fails for RLIM_INFINITY values on 32-bit machines

[aurelien at aurel32 dot net]

https://sourceware.org/bugzilla/show_bug.cgi?id=22678

            Bug ID: 22678
           Summary: prlimit fails for RLIM_INFINITY values on 32-bit
                    machines
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
          Assignee: unassigned at sourceware dot org
          Reporter: aurelien at aurel32 dot net
                CC: drepper.fsp at gmail dot com
  Target Milestone: ---

prlimit called without a new value fails on 32-bit machines if any of the soft
or hard limits are infinity. This is because prlimit does not translate
old_rlimit from RLIM64_INFINITY to RLIM_INFINITY, but checks that the value
returned by the prlimit64 syscall fits into a 32-bit value, like it is done for
example in getrlimit. Note that on the other hand new_rlimit is correctly
translated from RLIM_INFINITY to RLIM64_INFINITY before calling the syscall.

Patch will follow on the mailing list.

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