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| author | Florian Weimer <fweimer@redhat.com> | 2022-08-26 21:15:43 +0200 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2022-08-26 21:15:43 +0200 |
| commit | d0e357ff45a75553dee3b17ed7d303bfa544f6fe (patch) | |
| tree | 1b3480f556a5a7d109c3cc5775ed951420156f00 /elf/Makefile | |
| parent | 06d4381dd81eaab16b538017adc5854033f44b6d (diff) | |
| download | glibc-d0e357ff45a75553dee3b17ed7d303bfa544f6fe.tar.gz glibc-d0e357ff45a75553dee3b17ed7d303bfa544f6fe.tar.xz glibc-d0e357ff45a75553dee3b17ed7d303bfa544f6fe.zip | |
elf: Call __libc_early_init for reused namespaces (bug 29528)
libc_map is never reset to NULL, neither during dlclose nor on a dlopen call which reuses the namespace structure. As a result, if a namespace is reused, its libc is not initialized properly. The most visible result is a crash in the <ctype.h> functions. To prevent similar bugs on namespace reuse from surfacing, unconditionally initialize the chosen namespace to zero using memset.
Diffstat (limited to 'elf/Makefile')
| -rw-r--r-- | elf/Makefile | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/elf/Makefile b/elf/Makefile index 3928a08787..008770bfaf 100644 --- a/elf/Makefile +++ b/elf/Makefile @@ -410,6 +410,7 @@ tests += \ tst-dlmopen4 \ tst-dlmopen-dlerror \ tst-dlmopen-gethostbyname \ + tst-dlmopen-twice \ tst-dlopenfail \ tst-dlopenfail-2 \ tst-dlopenrpath \ @@ -839,6 +840,8 @@ modules-names += \ tst-dlmopen1mod \ tst-dlmopen-dlerror-mod \ tst-dlmopen-gethostbyname-mod \ + tst-dlmopen-twice-mod1 \ + tst-dlmopen-twice-mod2 \ tst-dlopenfaillinkmod \ tst-dlopenfailmod1 \ tst-dlopenfailmod2 \ @@ -2976,3 +2979,7 @@ $(objpfx)tst-audit-tlsdesc.out: $(objpfx)tst-auditmod-tlsdesc.so tst-audit-tlsdesc-ENV = LD_AUDIT=$(objpfx)tst-auditmod-tlsdesc.so $(objpfx)tst-audit-tlsdesc-dlopen.out: $(objpfx)tst-auditmod-tlsdesc.so tst-audit-tlsdesc-dlopen-ENV = LD_AUDIT=$(objpfx)tst-auditmod-tlsdesc.so + +$(objpfx)tst-dlmopen-twice.out: \ + $(objpfx)tst-dlmopen-twice-mod1.so \ + $(objpfx)tst-dlmopen-twice-mod2.so |