Christian Brauner b0fa673c8c fs: add file and path permissions helpers ... [ Upstream commit 02f92b3868a1b34ab98464e76b0e4e060474ba10 ] Add two simple helpers to check permissions on a file and path respectively and convert over some callers. It simplifies quite a few codepaths and also reduces the churn in later patches quite a bit. Christoph also correctly points out that this makes codepaths (e.g. ioctls) way easier to follow that would otherwise have to do more complex argument passing than necessary. Link: https://lore.kernel.org/r/20210121131959.646623-4-christian.brauner@ubuntu.com Cc: David Howells <dhowells@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: linux-fsdevel@vger.kernel.org Suggested-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: James Morris <jamorris@linux.microsoft.com> Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com> Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-06-21 14:52:58 +02:00
..
bpf	fs: add file and path permissions helpers	2024-06-21 14:52:58 +02:00
cgroup	sched/fair: Allow disabling sched_balance_newidle with sched_relax_domain_level	2024-06-16 13:32:15 +02:00
configs
debug	kdb: Use format-specifiers rather than memset() for padding in kdb_read()	2024-06-16 13:32:35 +02:00
dma	dma-mapping: clear dev->dma_mem to NULL after freeing it	2024-01-25 14:37:45 -08:00
entry	entry/kvm: Exit to user mode when TIF_NOTIFY_SIGNAL is set	2023-01-04 11:39:22 +01:00
events	perf/core: Fix reentry problem in perf_output_read_group()	2024-04-13 12:59:00 +02:00
futex	futex: Don't include process MM in futex key on no-MMU	2023-11-20 11:06:44 +01:00
gcov	gcov: add support for checksum field	2023-01-14 10:16:24 +01:00
irq	genirq/cpuhotplug, x86/vector: Prevent vector leak during CPU offline	2024-06-16 13:32:30 +02:00
kcsan	kcsan: Don't expect 64 bits atomic builtins from 32 bits architectures	2023-07-27 08:43:57 +02:00
livepatch	kallsyms: refactor {,module_}kallsyms_on_each_symbol	2024-06-21 14:52:58 +02:00
locking	lockdep: Fix block chain corruption	2023-12-08 08:46:09 +01:00
power	PM: suspend: Set mem_sleep_current during kernel command line setup	2024-04-13 12:58:13 +02:00
printk	printk: Update @console_may_schedule in console_trylock_spinning()	2024-04-13 12:58:54 +02:00
rcu	rcu-tasks: Provide rcu_trace_implies_rcu_gp()	2024-03-26 18:21:45 -04:00
sched	sched/fair: Allow disabling sched_balance_newidle with sched_relax_domain_level	2024-06-16 13:32:15 +02:00
time	timers: Rename del_timer_sync() to timer_delete_sync()	2024-04-13 12:57:58 +02:00
trace	module: use RCU to synchronize find_module	2024-06-21 14:52:58 +02:00
.gitignore	kbuild: update config_data.gz only when the content of .config is changed	2021-05-11 14:47:37 +02:00
acct.c	acct: fix potential integer overflow in encode_comp_t()	2023-01-14 10:16:14 +01:00
async.c	async: Introduce async_schedule_dev_nocall()	2024-02-23 08:41:53 +01:00
audit_fsnotify.c	audit: fix potential double free on error path from fsnotify_add_inode_mark	2022-08-31 17:15:13 +02:00
audit_tree.c	audit: move put_tree() to avoid trim_trees refcount underflow and UAF	2021-09-03 10:09:31 +02:00
audit_watch.c	audit: don't WARN_ON_ONCE(!current->mm) in audit_exe_compare()	2023-11-28 16:54:56 +00:00
audit.c	audit: Send netlink ACK before setting connection in auditd_set	2024-02-23 08:42:03 +01:00
audit.h	audit: log AUDIT_TIME_* records only from rules	2022-04-08 14:40:00 +02:00
auditfilter.c	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
auditsc.c	audit: fix possible soft lockup in __audit_inode_child()	2023-09-19 12:20:13 +02:00
backtracetest.c	treewide: Replace DECLARE_TASKLET() with DECLARE_TASKLET_OLD()	2020-07-30 11:15:58 -07:00
bounds.c	bounds: Use the right number of bits for power-of-two CONFIG_NR_CPUS	2024-05-02 16:23:46 +02:00
capability.c	LSM: Signal to SafeSetID when setting group IDs	2020-10-13 09:17:34 -07:00
compat.c	sched_getaffinity: don't assume 'cpumask_size()' is fully initialized	2023-04-05 11:23:45 +02:00
configs.c
context_tracking.c
cpu_pm.c	PM: cpu: Make notifier chain use a raw_spinlock_t	2021-09-15 09:50:40 +02:00
cpu.c	cpu: Re-enable CPU mitigations by default for !X86 architectures	2024-05-02 16:23:44 +02:00
crash_core.c	crash_core, vmcoreinfo: append 'SECTION_SIZE_BITS' to vmcoreinfo	2021-06-23 14:42:52 +02:00
crash_dump.c
cred.c	cred: switch to using atomic_long_t	2023-12-20 15:44:30 +01:00
delayacct.c
dma.c
exec_domain.c
exit.c	exit: Use READ_ONCE() for all oops/warn limit reads	2023-02-01 08:23:21 +01:00
extable.c
fail_function.c	kernel/fail_function: fix memory leak with using debugfs_lookup()	2023-03-11 16:40:18 +01:00
fork.c	exec: Simplify unshare_files	2024-06-21 14:52:47 +02:00
freezer.c	Revert "kernel: freezer should treat PF_IO_WORKER like PF_KTHREAD for freezing"	2021-04-07 15:00:14 +02:00
gen_kheaders.sh
groups.c	LSM: Signal to SafeSetID when setting group IDs	2020-10-13 09:17:34 -07:00
hung_task.c	kernel/hung_task.c: make type annotations consistent	2020-11-02 12:14:19 -08:00
iomem.c
irq_work.c
jump_label.c	jump_label: Fix jump_label_text_reserved() vs __init	2021-07-20 16:05:58 +02:00
kallsyms.c	kallsyms: only build {,module_}kallsyms_on_each_symbol when required	2024-06-21 14:52:58 +02:00
kcmp.c	kcmp: In get_file_raw_ptr use task_lookup_fd_rcu	2024-06-21 14:52:48 +02:00
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kcov.c	kcov: make some symbols static	2020-08-12 10:58:02 -07:00
kexec_core.c	kexec: fix a memory leak in crash_shrink_memory()	2023-07-27 08:43:40 +02:00
kexec_elf.c
kexec_file.c	kexec: support purgatories with .text.hot sections	2023-06-21 15:45:37 +02:00
kexec_internal.h	panic, kexec: make __crash_kexec() NMI safe	2023-04-20 12:10:29 +02:00
kexec.c	panic, kexec: make __crash_kexec() NMI safe	2023-04-20 12:10:29 +02:00
kheaders.c	kheaders: Use array declaration instead of char	2023-05-17 11:47:33 +02:00
kmod.c	kmod: remove redundant "be an" in the comment	2020-08-12 10:58:01 -07:00
kprobes.c	kprobes: Fix possible use-after-free issue on kprobe registration	2024-05-02 16:23:36 +02:00
ksysfs.c	kexec: turn all kexec_mutex acquisitions into trylocks	2023-04-20 12:10:29 +02:00
kthread.c	kthread: Fix PF_KTHREAD vs to_kthread() race	2021-09-03 10:09:31 +02:00
latencytop.c
Makefile	futex: Move to kernel/futex/	2023-01-14 10:15:20 +01:00
module_signature.c	module: harden ELF info handling	2021-03-25 09:04:11 +01:00
module_signing.c	module: harden ELF info handling	2021-03-25 09:04:11 +01:00
module-internal.h
module.c	kallsyms: only build {,module_}kallsyms_on_each_symbol when required	2024-06-21 14:52:58 +02:00
notifier.c	notifier: Fix broken error handling pattern	2020-09-01 09:58:03 +02:00
nsproxy.c
padata.c	crypto: pcrypt - Fix hungtask for PADATA_RESET	2023-11-28 16:54:51 +00:00
panic.c	panic: Flush kernel log buffer at the end	2024-04-13 12:59:40 +02:00
params.c	params: lift param_set_uint_minmax to common code	2024-06-16 13:32:26 +02:00
pid_namespace.c	rcu-tasks: Fix synchronize_rcu_tasks() VS zap_pid_ns_processes()	2023-03-11 16:39:19 +01:00
pid.c	exec: Transform exec_update_mutex into a rw_semaphore	2021-01-09 13:46:24 +01:00
profile.c	profiling: fix shift too large makes kernel panic	2022-08-21 15:16:05 +02:00
ptrace.c	ptrace: Reimplement PTRACE_KILL by always sending SIGKILL	2022-06-09 10:20:49 +02:00
range.c	kernel.h: split out min()/max() et al. helpers	2020-10-16 11:11:19 -07:00
reboot.c	kernel/reboot: emergency_restart: Set correct system_state	2023-11-28 16:54:58 +00:00
regset.c	regset: kill ->get()	2020-07-27 14:31:12 -04:00
relay.c	relayfs: fix out-of-bounds access in relay_file_read	2023-05-17 11:47:34 +02:00
resource.c	dax/kmem: Fix leak of memory-hotplug resources	2023-03-11 16:40:04 +01:00
rseq.c	rseq: Remove broken uapi field layout on 32-bit little endian	2022-04-08 14:40:03 +02:00
scftorture.c	scftorture: Forgive memory-allocation failure if KASAN	2023-09-23 11:01:05 +02:00
scs.c	mm: memcontrol: account kernel stack per node	2020-08-07 11:33:25 -07:00
seccomp.c	seccomp: Invalidate seccomp mode to catch death failures	2024-03-01 13:16:46 +01:00
signal.c	task_work: unconditionally run task_work from get_signal()	2023-01-04 11:39:23 +01:00
smp.c	smp: Fix offline cpu check in flush_smp_call_function_queue()	2022-04-20 09:23:29 +02:00
smpboot.c	sched/core: Initialize the idle task with preemption disabled	2021-07-14 16:55:50 +02:00
smpboot.h
softirq.c	softirq: Add debug check to __raise_softirq_irqoff()	2020-09-16 15:18:56 +02:00
stackleak.c	gcc-plugins/stackleak: Use noinstr in favor of notrace	2022-02-23 12:01:00 +01:00
stacktrace.c	stacktrace: Remove reliable argument from arch_stack_walk() callback	2020-09-18 14:24:16 +01:00
static_call.c	static_call: Fix unused variable warn w/o MODULE	2021-09-08 08:49:00 +02:00
stop_machine.c	stop_machine, rcu: Mark functions as notrace	2020-10-26 12:12:27 +01:00
sys_ni.c	kernel/sys_ni: add compat entry for fadvise64_64	2022-08-31 17:15:13 +02:00
sys.c	fs: add file and path permissions helpers	2024-06-21 14:52:58 +02:00
sysctl-test.c
sysctl.c	sched/rt: Disallow writing invalid values to sched_rt_period_us	2024-03-01 13:16:43 +01:00
task_work.c	task_work: add helper for more targeted task_work canceling	2023-01-04 11:39:23 +01:00
taskstats.c	taskstats: move specifying netlink policy back to ops	2020-10-02 19:11:12 -07:00
test_kprobes.c
torture.c	torture: Fix hang during kthread shutdown phase	2023-08-30 16:23:17 +02:00
tracepoint.c	tracepoint: Use rcu get state and cond sync for static call updates	2021-09-03 10:09:30 +02:00
tsacct.c	taskstats: Cleanup the use of task->exit_code	2022-01-27 10:54:33 +01:00
ucount.c	Revert "Add a reference to ucounts for each cred"	2021-09-08 08:49:00 +02:00
uid16.c
uid16.h
umh.c	usermodehelper: reset umask to default before executing user process	2020-10-06 10:31:52 -07:00
up.c	smp: Fix smp_call_function_single_async prototype	2021-05-14 09:50:46 +02:00
user_namespace.c	Revert "Add a reference to ucounts for each cred"	2021-09-08 08:49:00 +02:00
user-return-notifier.c
user.c
usermode_driver.c	bpf: Fix umd memory leak in copy_process()	2021-03-30 14:32:03 +02:00
utsname_sysctl.c
utsname.c
watch_queue.c	watch_queue: fix IOC_WATCH_QUEUE_SET_SIZE alloc error paths	2023-03-17 08:45:13 +01:00
watchdog_hld.c	watchdog/perf: more properly prevent false positives with turbo modes	2023-07-27 08:43:40 +02:00
watchdog.c	watchdog: move softlockup_panic back to early_param	2023-11-28 16:54:56 +00:00
workqueue_internal.h
workqueue.c	Revert "workqueue: remove unused cancel_work()"	2023-12-08 08:46:13 +01:00