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revert "memfd: improve userspace warnings for missing exec-related flags".

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This warning is telling userspace developers to pass MFD_EXEC and
MFD_NOEXEC_SEAL to memfd_create().  Commit 434ed3350f ("memfd: improve
userspace warnings for missing exec-related flags") made the warning more
frequent and visible in the hope that this would accelerate the fixing of
errant userspace.

But the overall effect is to generate far too much dmesg noise.

Fixes: 434ed3350f ("memfd: improve userspace warnings for missing exec-related flags")
Reported-by: Damian Tometzki <dtometzki@fedoraproject.org>
Closes: https://lkml.kernel.org/r/ZPFzCSIgZ4QuHsSC@fedora.fritz.box
Cc: Aleksa Sarai <cyphar@cyphar.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Daniel Verkamp <dverkamp@chromium.org>
Cc: Jeff Xu <jeffxu@google.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Andrew Morton 2023-09-02 15:59:31 -07:00
parent c83ad36a18
commit 2562d67b1b
1 changed files with 1 additions and 1 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

2
mm/memfd.c
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@ -316,7 +316,7 @@ SYSCALL_DEFINE2(memfd_create,
return -EINVAL; return -EINVAL;
if (!(flags & (MFD_EXEC | MFD_NOEXEC_SEAL))) { if (!(flags & (MFD_EXEC | MFD_NOEXEC_SEAL))) {
pr_info_ratelimited( pr_warn_once(
"%s[%d]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set\n", "%s[%d]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set\n",
current->comm, task_pid_nr(current)); current->comm, task_pid_nr(current));
} }