diff options
| author | Suren Baghdasaryan <surenb@google.com> | 2025-05-21 09:06:02 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-06-27 11:12:53 +0100 |
| commit | b6bbbb8ef48dde09c0dbd77121fa0f09b0237fec (patch) | |
| tree | c71a8b4d72650ec572b54c1663693d3b8f2b58cc /kernel/module/main.c | |
| parent | a2b47f77e740a21dbdcb12e2f2ca3c840299545a (diff) | |
alloc_tag: handle module codetag load errors as module load failures
commit 044d2aee6c575231ed4a24fb3d119bad0937488b upstream.
Failures inside codetag_load_module() are currently ignored. As a result
an error there would not cause a module load failure and freeing of the
associated resources. Correct this behavior by propagating the error code
to the caller and handling possible errors. With this change, error to
allocate percpu counters, which happens at this stage, will not be ignored
and will cause a module load failure and freeing of resources. With this
change we also do not need to disable memory allocation profiling when
this error happens, instead we fail to load the module.
Link: https://lkml.kernel.org/r/20250521160602.1940771-1-surenb@google.com
Fixes: 10075262888b ("alloc_tag: allocate percpu counters for module tags dynamically")
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Reported-by: Casey Chen <cachen@purestorage.com>
Closes: https://lore.kernel.org/all/20250520231620.15259-1-cachen@purestorage.com/
Cc: Daniel Gomez <da.gomez@samsung.com>
Cc: David Wang <00107082@163.com>
Cc: Kent Overstreet <kent.overstreet@linux.dev>
Cc: Luis Chamberalin <mcgrof@kernel.org>
Cc: Petr Pavlu <petr.pavlu@suse.com>
Cc: Sami Tolvanen <samitolvanen@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/module/main.c')
| -rw-r--r-- | kernel/module/main.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/kernel/module/main.c b/kernel/module/main.c index 5c6ab20240a6d..9861c2ac5fd50 100644 --- a/kernel/module/main.c +++ b/kernel/module/main.c @@ -3399,11 +3399,12 @@ static int load_module(struct load_info *info, const char __user *uargs, goto sysfs_cleanup; } + if (codetag_load_module(mod)) + goto sysfs_cleanup; + /* Get rid of temporary copy. */ free_copy(info, flags); - codetag_load_module(mod); - /* Done! */ trace_module_load(mod); |