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glibc.22972
nptl-setxid-error.patch
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File nptl-setxid-error.patch of Package glibc.22972
2017-10-13 Peter Zelezny <peter.zelezny@dektech.com.au> [BZ #22153] * nptl/allocatestack.c (__nptl_setxid_error): Preserve error code in coredumps. Index: glibc-2.26/nptl/allocatestack.c =================================================================== --- glibc-2.26.orig/nptl/allocatestack.c +++ glibc-2.26/nptl/allocatestack.c @@ -1088,8 +1088,13 @@ __nptl_setxid_error (struct xid_command if (olderror == error) break; if (olderror != -1) - /* Mismatch between current and previous results. */ - abort (); + { + /* Mismatch between current and previous results. Save the + error value to memory so that is not clobbered by the + abort function and preserved in coredumps. */ + volatile int xid_err __attribute__((unused)) = error; + abort (); + } } while (atomic_compare_and_exchange_bool_acq (&cmdp->error, error, -1)); }
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