glibc

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Stefan Liebler 1fe2b9ca8a Fix segfault in maybe_script_execute. If glibc is built with gcc 8 and -march=z900, the testcase posix/tst-spawn4-compat crashes with a segfault. In function maybe_script_execute, the new_argv array is dynamically initialized on stack with (argc + 1) elements. The function wants to add _PATH_BSHELL as the first argument and writes out of bounds of new_argv. There is an off-by-one because maybe_script_execute fails to count the terminating NULL when sizing new_argv. ChangeLog: * sysdeps/unix/sysv/linux/spawni.c (maybe_script_execute): Increment size of new_argv by one. (cherry picked from commit `28669f86f6`)	2018-09-10 14:22:52 +02:00
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linux	Fix segfault in maybe_script_execute.	2018-09-10 14:22:52 +02:00

Stefan Liebler 1fe2b9ca8a Fix segfault in maybe_script_execute.

If glibc is built with gcc 8 and -march=z900,
the testcase posix/tst-spawn4-compat crashes with a segfault.

In function maybe_script_execute, the new_argv array is dynamically
initialized on stack with (argc + 1) elements.
The function wants to add _PATH_BSHELL as the first argument
and writes out of bounds of new_argv.
There is an off-by-one because maybe_script_execute fails to count
the terminating NULL when sizing new_argv.

ChangeLog:

	* sysdeps/unix/sysv/linux/spawni.c (maybe_script_execute):
	Increment size of new_argv by one.

(cherry picked from commit 28669f86f6)

2018-09-10 14:22:52 +02:00

linux Fix segfault in maybe_script_execute. 2018-09-10 14:22:52 +02:00