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author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-01-12 11:11:34 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-01-12 11:11:34 -0800 |
commit | 6dc69d3d0d18d587ab9d809fe060ba4417cf0279 (patch) | |
tree | 9cb5936b21a6b4eab2224019abfe412d1b2e6050 /drivers/base/devtmpfs.c | |
parent | e3084ed48fd6b661fe434da0cb36d7d6706cf27f (diff) | |
parent | c9512fd032acfe6f5198c30b6e7e52e0a7df5d31 (diff) | |
download | linux-6dc69d3d0d18d587ab9d809fe060ba4417cf0279.tar.gz linux-6dc69d3d0d18d587ab9d809fe060ba4417cf0279.tar.bz2 linux-6dc69d3d0d18d587ab9d809fe060ba4417cf0279.zip |
Merge tag 'driver-core-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is the set of changes for the driver core for 5.17-rc1.
Lots of little things here, including:
- kobj_type cleanups
- auxiliary_bus documentation updates
- auxiliary_device conversions for some drivers (relevant subsystems
all have provided acks for these)
- kernfs lock contention reduction for some workloads
- other tiny cleanups and changes.
All of these have been in linux-next for a while with no reported
issues"
* tag 'driver-core-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (43 commits)
kobject documentation: remove default_attrs information
drivers/firmware: Add missing platform_device_put() in sysfb_create_simplefb
debugfs: lockdown: Allow reading debugfs files that are not world readable
driver core: Make bus notifiers in right order in really_probe()
driver core: Move driver_sysfs_remove() after driver_sysfs_add()
firmware: edd: remove empty default_attrs array
firmware: dmi-sysfs: use default_groups in kobj_type
qemu_fw_cfg: use default_groups in kobj_type
firmware: memmap: use default_groups in kobj_type
sh: sq: use default_groups in kobj_type
headers/uninline: Uninline single-use function: kobject_has_children()
devtmpfs: mount with noexec and nosuid
driver core: Simplify async probe test code by using ktime_ms_delta()
nilfs2: use default_groups in kobj_type
kobject: remove kset from struct kset_uevent_ops callbacks
driver core: make kobj_type constant.
driver core: platform: document registration-failure requirement
vdpa/mlx5: Use auxiliary_device driver data helpers
net/mlx5e: Use auxiliary_device driver data helpers
soundwire: intel: Use auxiliary_device driver data helpers
...
Diffstat (limited to 'drivers/base/devtmpfs.c')
-rw-r--r-- | drivers/base/devtmpfs.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c index 8be352ab4ddb..1e2c2d3882e2 100644 --- a/drivers/base/devtmpfs.c +++ b/drivers/base/devtmpfs.c @@ -29,6 +29,12 @@ #include <uapi/linux/mount.h> #include "base.h" +#ifdef CONFIG_DEVTMPFS_SAFE +#define DEVTMPFS_MFLAGS (MS_SILENT | MS_NOEXEC | MS_NOSUID) +#else +#define DEVTMPFS_MFLAGS (MS_SILENT) +#endif + static struct task_struct *thread; static int __initdata mount_dev = IS_ENABLED(CONFIG_DEVTMPFS_MOUNT); @@ -363,7 +369,7 @@ int __init devtmpfs_mount(void) if (!thread) return 0; - err = init_mount("devtmpfs", "dev", "devtmpfs", MS_SILENT, NULL); + err = init_mount("devtmpfs", "dev", "devtmpfs", DEVTMPFS_MFLAGS, NULL); if (err) printk(KERN_INFO "devtmpfs: error mounting %i\n", err); else @@ -412,7 +418,7 @@ static noinline int __init devtmpfs_setup(void *p) err = ksys_unshare(CLONE_NEWNS); if (err) goto out; - err = init_mount("devtmpfs", "/", "devtmpfs", MS_SILENT, NULL); + err = init_mount("devtmpfs", "/", "devtmpfs", DEVTMPFS_MFLAGS, NULL); if (err) goto out; init_chdir("/.."); /* will traverse into overmounted root */ |