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linux/tools/testing/selftests/exec/check-exec.c

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selftests/exec: Add 32 tests for AT_EXECVE_CHECK and exec securebits Test that checks performed by execveat(..., AT_EXECVE_CHECK) are consistent with noexec mount points and file execute permissions. Test that SECBIT_EXEC_RESTRICT_FILE and SECBIT_EXEC_DENY_INTERACTIVE are inherited by child processes and that they can be pinned with the appropriate SECBIT_EXEC_RESTRICT_FILE_LOCKED and SECBIT_EXEC_DENY_INTERACTIVE_LOCKED bits. Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christian Brauner <brauner@kernel.org> Cc: Kees Cook <keescook@chromium.org> Cc: Paul Moore <paul@paul-moore.com> Cc: Serge Hallyn <serge@hallyn.com> Signed-off-by: Mickaël Salaün <mic@digikod.net> Link: https://lore.kernel.org/r/20241212174223.389435-4-mic@digikod.net Signed-off-by: Kees Cook <kees@kernel.org>
2024-12-12 18:42:18 +01:00
selftests: Handle old glibc without execveat(2) Add an execveat(2) wrapper because glibc < 2.34 does not have one. This fixes the check-exec tests and samples. Cc: Günther Noack <gnoack@google.com> Cc: Jeff Xu <jeffxu@chromium.org> Cc: Kees Cook <kees@kernel.org> Cc: Mimi Zohar <zohar@linux.ibm.com> Cc: Paul Moore <paul@paul-moore.com> Cc: Roberto Sassu <roberto.sassu@huawei.com> Cc: Serge Hallyn <serge@hallyn.com> Cc: Stefan Berger <stefanb@linux.ibm.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Reported-by: Nathan Chancellor <nathan@kernel.org> Closes: https://lore.kernel.org/r/20250114205645.GA2825031@ax162 Signed-off-by: Mickaël Salaün <mic@digikod.net> Reviewed-by: Günther Noack <gnoack3000@gmail.com> Link: https://lore.kernel.org/r/20250115144753.311152-1-mic@digikod.net Signed-off-by: Kees Cook <kees@kernel.org>
2025-01-15 15:47:50 +01:00
selftests/exec: Add 32 tests for AT_EXECVE_CHECK and exec securebits Test that checks performed by execveat(..., AT_EXECVE_CHECK) are consistent with noexec mount points and file execute permissions. Test that SECBIT_EXEC_RESTRICT_FILE and SECBIT_EXEC_DENY_INTERACTIVE are inherited by child processes and that they can be pinned with the appropriate SECBIT_EXEC_RESTRICT_FILE_LOCKED and SECBIT_EXEC_DENY_INTERACTIVE_LOCKED bits. Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christian Brauner <brauner@kernel.org> Cc: Kees Cook <keescook@chromium.org> Cc: Paul Moore <paul@paul-moore.com> Cc: Serge Hallyn <serge@hallyn.com> Signed-off-by: Mickaël Salaün <mic@digikod.net> Link: https://lore.kernel.org/r/20241212174223.389435-4-mic@digikod.net Signed-off-by: Kees Cook <kees@kernel.org>
2024-12-12 18:42:18 +01:00
selftests: Handle old glibc without execveat(2) Add an execveat(2) wrapper because glibc < 2.34 does not have one. This fixes the check-exec tests and samples. Cc: Günther Noack <gnoack@google.com> Cc: Jeff Xu <jeffxu@chromium.org> Cc: Kees Cook <kees@kernel.org> Cc: Mimi Zohar <zohar@linux.ibm.com> Cc: Paul Moore <paul@paul-moore.com> Cc: Roberto Sassu <roberto.sassu@huawei.com> Cc: Serge Hallyn <serge@hallyn.com> Cc: Stefan Berger <stefanb@linux.ibm.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Reported-by: Nathan Chancellor <nathan@kernel.org> Closes: https://lore.kernel.org/r/20250114205645.GA2825031@ax162 Signed-off-by: Mickaël Salaün <mic@digikod.net> Reviewed-by: Günther Noack <gnoack3000@gmail.com> Link: https://lore.kernel.org/r/20250115144753.311152-1-mic@digikod.net Signed-off-by: Kees Cook <kees@kernel.org>
2025-01-15 15:47:50 +01:00
selftests/exec: Add 32 tests for AT_EXECVE_CHECK and exec securebits Test that checks performed by execveat(..., AT_EXECVE_CHECK) are consistent with noexec mount points and file execute permissions. Test that SECBIT_EXEC_RESTRICT_FILE and SECBIT_EXEC_DENY_INTERACTIVE are inherited by child processes and that they can be pinned with the appropriate SECBIT_EXEC_RESTRICT_FILE_LOCKED and SECBIT_EXEC_DENY_INTERACTIVE_LOCKED bits. Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christian Brauner <brauner@kernel.org> Cc: Kees Cook <keescook@chromium.org> Cc: Paul Moore <paul@paul-moore.com> Cc: Serge Hallyn <serge@hallyn.com> Signed-off-by: Mickaël Salaün <mic@digikod.net> Link: https://lore.kernel.org/r/20241212174223.389435-4-mic@digikod.net Signed-off-by: Kees Cook <kees@kernel.org>
2024-12-12 18:42:18 +01:00
selftests: Handle old glibc without execveat(2) Add an execveat(2) wrapper because glibc < 2.34 does not have one. This fixes the check-exec tests and samples. Cc: Günther Noack <gnoack@google.com> Cc: Jeff Xu <jeffxu@chromium.org> Cc: Kees Cook <kees@kernel.org> Cc: Mimi Zohar <zohar@linux.ibm.com> Cc: Paul Moore <paul@paul-moore.com> Cc: Roberto Sassu <roberto.sassu@huawei.com> Cc: Serge Hallyn <serge@hallyn.com> Cc: Stefan Berger <stefanb@linux.ibm.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Reported-by: Nathan Chancellor <nathan@kernel.org> Closes: https://lore.kernel.org/r/20250114205645.GA2825031@ax162 Signed-off-by: Mickaël Salaün <mic@digikod.net> Reviewed-by: Günther Noack <gnoack3000@gmail.com> Link: https://lore.kernel.org/r/20250115144753.311152-1-mic@digikod.net Signed-off-by: Kees Cook <kees@kernel.org>
2025-01-15 15:47:50 +01:00
selftests/exec: Add 32 tests for AT_EXECVE_CHECK and exec securebits Test that checks performed by execveat(..., AT_EXECVE_CHECK) are consistent with noexec mount points and file execute permissions. Test that SECBIT_EXEC_RESTRICT_FILE and SECBIT_EXEC_DENY_INTERACTIVE are inherited by child processes and that they can be pinned with the appropriate SECBIT_EXEC_RESTRICT_FILE_LOCKED and SECBIT_EXEC_DENY_INTERACTIVE_LOCKED bits. Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christian Brauner <brauner@kernel.org> Cc: Kees Cook <keescook@chromium.org> Cc: Paul Moore <paul@paul-moore.com> Cc: Serge Hallyn <serge@hallyn.com> Signed-off-by: Mickaël Salaün <mic@digikod.net> Link: https://lore.kernel.org/r/20241212174223.389435-4-mic@digikod.net Signed-off-by: Kees Cook <kees@kernel.org>
2024-12-12 18:42:18 +01:00