bugGNU patch - Bugs: bug #62958, patch dies with out of memory when...

 
 

bug #62958: patch dies with out of memory when rlimit is huge, particularly when it is RLIM_INFINITY

Submitter:  Taylor C. Richberger <richbergert>
Submitted:  Thu 25 Aug 2022 06:15:27 PM UTC
 
Category:  None Severity:  3 - Normal
Item Group:  None Status:  None
Privacy:  Public Assigned to:  None
Open/Closed:  Open
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Fri 26 Aug 2022 06:24:28 PM UTC, comment #1: 

There have been some fixes, when is the next release going to be cut of Gnu patch

Jack Woehr <jax>
Thu 25 Aug 2022 06:15:27 PM UTC, original submission:  

Working on an AIX 7.1 system with RLIM_INFINITY set to 2**63 and unlimited nofile rlimit, when I try to apply a patch with a subdirectory, I end up at src/safe.c line 103 calculating a max_cached_fds of 2305843009213693951 (~2.3 quintillion).  This proceeds into lib/hash.c line 622, which passes this number into compute_bucket_size and ends up spinning on next_prime for a while before ending up on 1152921504606840992 (~1.15 quintillion), returning 0, and then failing with out of memory because xalloc_oversized returns 0.

Maybe a check for RLIM_INFINITY is in order, but that won't fix a similar issue if somebody has their nofile rlimit set to a massive value below RLIM_INFINITY, which could cause the same problem.

Taylor C. Richberger <richbergert>

 

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