Public bug reported: Binary package hint: bash
If the value of the environment variable TERM starts with "eterm" and the EMACS env var is unset, bash will segfault. The cause is not checking that getenv() is returning NULL when EMACS is unset. To reproduce: unset EMACS; TERM=eterm bash Versions: Ubuntu 9.10 bash 4.0-5ubuntu2 See this Fedora bug report for detail and a patch: https://bugzilla.redhat.com/show_bug.cgi?id=530911 --- bash-4.0/shell.c.orig 2009-10-15 15:57:56.000000000 -0400 +++ bash-4.0/shell.c 2009-10-15 15:58:28.000000000 -0400 @@ -572,7 +572,7 @@ /* running_under_emacs == 2 for `eterm' */ running_under_emacs = (emacs != 0) || (term && STREQN (term, "emacs", 5)); - running_under_emacs += term && STREQN (term, "eterm", 5) && strstr (emacs, "term"); + running_under_emacs += term && STREQN (term, "eterm", 5) && (emacs != 0) && strstr (emacs, "term"); if (running_under_emacs) gnu_error_format = 1; ** Affects: bash (Ubuntu) Importance: Undecided Status: New ** Description changed: Binary package hint: bash If the value of the environment variable TERM starts with "eterm" and the EMACS env var is unset, bash will segfault. The cause is not checking that getenv() is returning NULL when EMACS is unset. To reproduce: - TERM=eterm bash + unset EMACS; TERM=eterm bash Versions: Ubuntu 9.10 bash 4.0-5ubuntu2 See this Fedora bug report for detail and a patch: https://bugzilla.redhat.com/show_bug.cgi?id=530911 --- bash-4.0/shell.c.orig 2009-10-15 15:57:56.000000000 -0400 +++ bash-4.0/shell.c 2009-10-15 15:58:28.000000000 -0400 @@ -572,7 +572,7 @@ /* running_under_emacs == 2 for `eterm' */ running_under_emacs = (emacs != 0) || (term && STREQN (term, "emacs", 5)); - running_under_emacs += term && STREQN (term, "eterm", 5) && strstr (emacs, "term"); + running_under_emacs += term && STREQN (term, "eterm", 5) && (emacs != 0) && strstr (emacs, "term"); if (running_under_emacs) gnu_error_format = 1; -- bash segfaults when TERM=eterm* https://bugs.launchpad.net/bugs/497637 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
