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* [Bug dynamic-link/27112] New: GL(dl_tls_generation) may overflow on 32bit targets and abort during dlopen and dlclose
@ 2020-12-24 14:47 nsz at gcc dot gnu.org
  0 siblings, 0 replies; only message in thread
From: nsz at gcc dot gnu.org @ 2020-12-24 14:47 UTC (permalink / raw)
  To: glibc-bugs

https://sourceware.org/bugzilla/show_bug.cgi?id=27112

            Bug ID: 27112
           Summary: GL(dl_tls_generation) may overflow on 32bit targets
                    and abort during dlopen and dlclose
           Product: glibc
           Version: 2.32
            Status: NEW
          Severity: normal
          Priority: P2
         Component: dynamic-link
          Assignee: unassigned at sourceware dot org
          Reporter: nsz at gcc dot gnu.org
  Target Milestone: ---

the generation count is incremented in dlopen and dlclose
and it is checked for overflow, but the overflow aborts the
process.

only 32bit targets can realistically run into such overflow
(where 4billion dlopen/dlclose calls can trigger it).

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2020-12-24 14:47 [Bug dynamic-link/27112] New: GL(dl_tls_generation) may overflow on 32bit targets and abort during dlopen and dlclose nsz at gcc dot gnu.org

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