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authorAndrew Morton <[email protected]>2023-09-02 15:59:31 -0700
committerAndrew Morton <[email protected]>2023-09-05 11:11:52 -0700
commit2562d67b1bdf91c7395b0225d60fdeb26b4bc5a0 (patch)
treed4f050d7d22a17f6d0cdb2bbc3bd058ff036ebb2
parentc83ad36a18c02c0f51280b50272327807916987f (diff)
revert "memfd: improve userspace warnings for missing exec-related flags".
This warning is telling userspace developers to pass MFD_EXEC and MFD_NOEXEC_SEAL to memfd_create(). Commit 434ed3350f57 ("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: 434ed3350f57 ("memfd: improve userspace warnings for missing exec-related flags") Reported-by: Damian Tometzki <[email protected]> Closes: https://lkml.kernel.org/r/[email protected] Cc: Aleksa Sarai <[email protected]> Cc: Christian Brauner <[email protected]> Cc: Daniel Verkamp <[email protected]> Cc: Jeff Xu <[email protected]> Cc: Kees Cook <[email protected]> Cc: Shuah Khan <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
-rw-r--r--mm/memfd.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/memfd.c b/mm/memfd.c
index 1cad1904fc26..2dba2cb6f0d0 100644
--- a/mm/memfd.c
+++ b/mm/memfd.c
@@ -316,7 +316,7 @@ SYSCALL_DEFINE2(memfd_create,
return -EINVAL;
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",
current->comm, task_pid_nr(current));
}