diff options
| author | Florian Weimer <fweimer@redhat.com> | 2021-04-21 19:49:51 +0200 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2021-06-09 17:15:00 +0200 |
| commit | f4cba6ca1e5ff2c229af6d474c3ef2c0df2fae52 (patch) | |
| tree | fb803126b11f378cca22840df5dd98f19bd98ef0 /NEWS | |
| parent | 0ef0e6de7fdfa18328b09ba2afb4f0112d4bdab4 (diff) | |
| download | glibc-f4cba6ca1e5ff2c229af6d474c3ef2c0df2fae52.tar.gz glibc-f4cba6ca1e5ff2c229af6d474c3ef2c0df2fae52.tar.xz glibc-f4cba6ca1e5ff2c229af6d474c3ef2c0df2fae52.zip | |
dlfcn: Failures after dlmopen should not terminate process [BZ #15271]
Commit 9e78f6f6e7134a5f299cc8de77370218f8019237 ("Implement
_dl_catch_error, _dl_signal_error in libc.so [BZ #16628]") has the
side effect that distinct namespaces, as created by dlmopen, now have
separate implementations of the rtld exception mechanism. This means
that the call to _dl_catch_error from libdl in a secondary namespace
does not actually install an exception handler because the
thread-local variable catch_hook in the libc.so copy in the secondary
namespace is distinct from that of the base namepace. As a result, a
dlsym/dlopen/... failure in a secondary namespace terminates the process
with a dynamic linker error because it looks to the exception handler
mechanism as if no handler has been installed.
Backport notes: GLRO (dl_catch_error) is replaced with
_dl_catch_error_ptr to preserve _rtld_global_ro layout.
(cherry picked from commit b2964eb1d9a6b8ab1250e8a881cf406182da5875)
Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/NEWS b/NEWS index a6202ad058..0c33a80af9 100644 --- a/NEWS +++ b/NEWS @@ -15,6 +15,7 @@ Major new features: The following bugs are resolved with this release: + [15271] dlfcn function failure after dlmopen terminates process [18435] pthread_once hangs when init routine throws an exception [23462] Static binary with dynamic string tokens ($LIB, $PLATFORM, $ORIGIN) crashes |