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elf: Call free from base namespace on error in dl-libc.c [BZ #27646]
In dlerror_run, free corresponds to the local malloc in the namespace, but GLRO (dl_catch_error) uses the malloc from the base namespace. elf/tst-dlmopen-gethostbyname triggers this mismatch, but it does not crash, presumably because of a fastbin deallocation. Fixes commitc2059edce2
("elf: Use _dl_catch_error from base namespace in dl-libc.c [BZ #27646]") and commitb2964eb1d9
("dlfcn: Failures after dlmopen should not terminate process [BZ #24772]").
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@ -48,7 +48,7 @@ dlerror_run (void (*operate) (void *), void *args)
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?: last_errstring != NULL);
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if (result && malloced)
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free ((char *) last_errstring);
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GLRO (dl_error_free) ((char *) last_errstring);
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return result;
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}
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