Hi Jan,
> The behaviour is allowed since commit:
> 2a010c412853 ("fs: don't block i_writecount during exec")
> that landed in 6.11-rc1.
Thanks for noticing and fixing this!
It was reported some time ago:
https://lore.kernel.org/all/202406141431.2b72ca61-oliver.sang@xxxxxxxxx/
https://lore.kernel.org/ltp/202407162117.7730986d-oliver.sang@xxxxxxxxx/
Reviewed-by: Petr Vorel <pvorel@xxxxxxx>
Kind regards,
Petr
> Signed-off-by: Jan Stancek <jstancek@xxxxxxxxxx>
> ---
> testcases/kernel/syscalls/creat/creat07.c | 10 ++++++++++
> testcases/kernel/syscalls/execve/execve04.c | 10 ++++++++++
> 2 files changed, 20 insertions(+)
> diff --git a/testcases/kernel/syscalls/creat/creat07.c b/testcases/kernel/syscalls/creat/creat07.c
> index 7bd32ab4d328..f157e1a8fbb2 100644
> --- a/testcases/kernel/syscalls/creat/creat07.c
> +++ b/testcases/kernel/syscalls/creat/creat07.c
> @@ -47,7 +47,17 @@ static void verify_creat(void)
> SAFE_WAITPID(pid, NULL, 0);
> }
> +static void setup(void)
> +{
> + if ((tst_kvercmp(6, 11, 0)) >= 0) {
> + tst_brk(TCONF, "Skipping test, write to executed file is "
> + "allowed since 6.11-rc1.\n"
> + "2a010c412853 (\"fs: don't block i_writecount during exec\")");
> + }
> +}
> +
> static struct tst_test test = {
> + .setup = setup,
> .test_all = verify_creat,
> .needs_checkpoints = 1,
> .forks_child = 1,
> diff --git a/testcases/kernel/syscalls/execve/execve04.c b/testcases/kernel/syscalls/execve/execve04.c
> index 3bac642e5412..7bbfece85906 100644
> --- a/testcases/kernel/syscalls/execve/execve04.c
> +++ b/testcases/kernel/syscalls/execve/execve04.c
> @@ -65,7 +65,17 @@ static void do_child(void)
> exit(0);
> }
> +static void setup(void)
> +{
> + if ((tst_kvercmp(6, 11, 0)) >= 0) {
> + tst_brk(TCONF, "Skipping test, write to executed file is "
> + "allowed since 6.11-rc1.\n"
> + "2a010c412853 (\"fs: don't block i_writecount during exec\")");
> + }
> +}
> +
> static struct tst_test test = {
> + .setup = setup,
> .test_all = verify_execve,
> .forks_child = 1,
> .child_needs_reinit = 1,
