kernel - Hosts the 0x221E linux distro kernel.

Age	Commit message (Collapse)	Author
2019-06-25	tests: fix pidfd-test compilation	Christian Brauner
	[ Upstream commit 1fcd0eb356ad56c4e405f06e31dd9fde2109d5ab ] Define __NR_pidfd_send_signal if it isn't to prevent a potential compilation error. To make pidfd-test compile on all arches, irrespective of whether or not syscall numbers are assigned, define the syscall number to -1. If it isn't defined this will cause the kernel to return -ENOSYS. Fixes: 575a0ae9744d ("selftests: add tests for pidfd_send_signal()") Signed-off-by: Christian Brauner <christian@brauner.io> Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-03-05	selftests: add tests for pidfd_send_signal()	Christian Brauner
	As suggested by Andrew Morton in [1] add selftests for the new sys_pidfd_send_signal() syscall: /* test_pidfd_send_signal_syscall_support / Test whether the pidfd_send_signal() syscall is supported and the tests can be run or need to be skipped. / test_pidfd_send_signal_simple_success / Test whether sending a signal via a pidfd works. / test_pidfd_send_signal_exited_fail / Verify that sending a signal to an already exited process fails with ESRCH. / test_pidfd_send_signal_recycled_pid_fail */ Verify that a recycled pid cannot be signaled via a pidfd referring to an already exited process that had the same pid (cf. [2], [3]). [1]: https://lore.kernel.org/lkml/20181228152012.dbf0508c2508138efc5f2bbe@linux-foundation.org/ [2]: https://lore.kernel.org/lkml/20181230210245.GA30252@mail.hallyn.com/ [3]: https://lore.kernel.org/lkml/20181230232711.7aayb7vnhogbv4co@brauner.io/ Cc: Arnd Bergmann <arnd@arndb.de> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Kees Cook <keescook@chromium.org> Cc: Jann Horn <jannh@google.com> Cc: Andy Lutomirsky <luto@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Aleksa Sarai <cyphar@cyphar.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Florian Weimer <fweimer@redhat.com> Signed-off-by: Christian Brauner <christian@brauner.io> Reviewed-by: Tycho Andersen <tycho@tycho.ws> Acked-by: Serge Hallyn <serge@hallyn.com>