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| author | Russ Weight <russell.h.weight@intel.com> | 2022-08-31 02:25:18 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-09-01 17:47:27 +0200 |
| commit | 789bba82f63c3e81dce426ba457fc7905b30ac6e (patch) | |
| tree | ac7efbdb2aa65d3e69044fb646951ed63829f974 /drivers/base/firmware_loader/sysfs.h | |
| parent | firmware_loader: Fix use-after-free during unregister (diff) | |
| download | linux-789bba82f63c3e81dce426ba457fc7905b30ac6e.tar.xz linux-789bba82f63c3e81dce426ba457fc7905b30ac6e.zip | |
firmware_loader: Fix memory leak in firmware upload
In the case of firmware-upload, an instance of struct fw_upload is
allocated in firmware_upload_register(). This data needs to be freed
in fw_dev_release(). Create a new fw_upload_free() function in
sysfs_upload.c to handle the firmware-upload specific memory frees
and incorporate the missing kfree call for the fw_upload structure.
Fixes: 97730bbb242c ("firmware_loader: Add firmware-upload support")
Cc: stable <stable@kernel.org>
Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Link: https://lore.kernel.org/r/20220831002518.465274-1-russell.h.weight@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/base/firmware_loader/sysfs.h')
| -rw-r--r-- | drivers/base/firmware_loader/sysfs.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/base/firmware_loader/sysfs.h b/drivers/base/firmware_loader/sysfs.h index 5d8ff1675c79..df1d5add698f 100644 --- a/drivers/base/firmware_loader/sysfs.h +++ b/drivers/base/firmware_loader/sysfs.h @@ -106,12 +106,17 @@ extern struct device_attribute dev_attr_cancel; extern struct device_attribute dev_attr_remaining_size; int fw_upload_start(struct fw_sysfs *fw_sysfs); +void fw_upload_free(struct fw_sysfs *fw_sysfs); umode_t fw_upload_is_visible(struct kobject *kobj, struct attribute *attr, int n); #else static inline int fw_upload_start(struct fw_sysfs *fw_sysfs) { return 0; } + +static inline void fw_upload_free(struct fw_sysfs *fw_sysfs) +{ +} #endif #endif /* __FIRMWARE_SYSFS_H */ |