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David Disseldorp a232df8edc watch_queue: fix IOC_WATCH_QUEUE_SET_SIZE alloc error paths 
[ Upstream commit 03e1d60e17 ]

The watch_queue_set_size() allocation error paths return the ret value
set via the prior pipe_resize_ring() call, which will always be zero.

As a result, IOC_WATCH_QUEUE_SET_SIZE callers such as "keyctl watch"
fail to detect kernel wqueue->notes allocation failures and proceed to
KEYCTL_WATCH_KEY, with any notifications subsequently lost.

Fixes: c73be61ced ("pipe: Add general notification queue support")
Signed-off-by: David Disseldorp <ddiss@suse.de>
Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:58:00 +01:00
..
bpf
btf: fix resolving BTF_KIND_VAR after ARRAY, STRUCT, UNION, PTR
2023-03-17 08:57:57 +01:00
cgroup
cpuset: Call set_cpus_allowed_ptr() with appropriate mask for task
2023-02-06 10:18:36 -10:00
configs
mm, slob: rename CONFIG_SLOB to CONFIG_SLOB_DEPRECATED
2022-12-01 00:09:20 +01:00
debug
kdb: use srcu console list iterator
2022-12-02 11:25:00 +01:00
dma
swiotlb: mark swiotlb_memblock_alloc() as __init
2023-03-11 13:50:30 +01:00
entry
entry: kmsan: introduce kmsan_unpoison_entry_regs()
2022-10-03 14:03:25 -07:00
events
perf: Fix perf_event_pmu_context serialization
2023-01-31 20:37:18 +01:00
futex
Merge tag 'locking_urgent_for_v6.2_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2023-01-01 11:15:05 -08:00
gcov
gcov: add support for checksum field
2022-12-21 14:31:52 -08:00
irq
genirq/ipi: Fix NULL pointer deref in irq_data_get_affinity_mask()
2023-03-11 13:50:35 +01:00
kcsan
kcsan: test: don't put the expect array on the stack
2023-01-02 08:59:33 -08:00
livepatch
Merge tag 'modules-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux
2022-12-13 14:05:39 -08:00
locking
locking/rwsem: Prevent non-first waiter from spinning in down_write() slowpath
2023-03-10 09:29:27 +01:00
module
module: Don't wait for GOING modules
2023-01-24 12:52:52 -08:00
power
PM: EM: fix memory leak with using debugfs_lookup()
2023-03-10 09:29:12 +01:00
printk
kernel/printk/index.c: fix memory leak with using debugfs_lookup()
2023-03-11 13:50:37 +01:00
rcu
rcu-tasks: Handle queue-shrink/callback-enqueue race condition
2023-03-10 09:29:08 +01:00
sched
sched/rt: pick_next_rt_entity(): check list_entry
2023-03-10 09:27:56 +01:00
time
time/debug: Fix memory leak with using debugfs_lookup()
2023-03-10 09:29:12 +01:00
trace
tracing: Add NULL checks for buffer in ring_buffer_free_read_page()
2023-03-11 13:50:37 +01:00
.gitignore
…
acct.c
acct: fix potential integer overflow in encode_comp_t()
2022-11-30 16:13:18 -08:00
async.c
…
audit_fsnotify.c
…
audit_tree.c
…
audit_watch.c
…
audit.c
…
audit.h
…
auditfilter.c
…
auditsc.c
audit: unify audit_filter_{uring(), inode_name(), syscall()}
2022-10-17 14:24:42 -04:00
backtracetest.c
…
bounds.c
mm: multi-gen LRU: minimal implementation
2022-09-26 19:46:09 -07:00
capability.c
caps: use type safe idmapping helpers
2022-10-26 10:02:39 +02:00
cfi.c
cfi: Switch to -fsanitize=kcfi
2022-09-26 10:13:13 -07:00
compat.c
…
configs.c
…
context_tracking.c
context_tracking: Fix noinstr vs KASAN
2023-03-10 09:29:05 +01:00
cpu_pm.c
…
cpu.c
cpu/hotplug: Do not bail-out in DYING/STARTING sections
2022-12-02 12:43:02 +01:00
crash_core.c
vmcoreinfo: warn if we exceed vmcoreinfo data size
2022-11-30 16:13:17 -08:00
crash_dump.c
…
cred.c
cred: Do not default to init_cred in prepare_kernel_cred()
2022-11-01 10:04:52 -07:00
delayacct.c
delayacct: support re-entrance detection of thrashing accounting
2022-09-26 19:46:07 -07:00
dma.c
…
exec_domain.c
…
exit.c
Compiler attributes: GCC cold function alignment workarounds
2023-03-10 09:29:09 +01:00
extable.c
…
fail_function.c
kernel/fail_function: fix memory leak with using debugfs_lookup()
2023-03-11 13:50:45 +01:00
fork.c
fork: allow CLONE_NEWTIME in clone3 flags
2023-03-17 08:57:46 +01:00
freezer.c
…
gen_kheaders.sh
kheaders: explicitly validate existence of cpio command
2023-01-18 16:34:04 +09:00
groups.c
…
hung_task.c
sched: Fix more TASK_state comparisons
2022-09-30 16:50:39 +02:00
iomem.c
…
irq_work.c
…
jump_label.c
jump_label: Prevent key->enabled int overflow
2022-12-01 15:53:05 -08:00
kallsyms_internal.h
kallsyms: Reduce the memory occupied by kallsyms_seqs_of_names[]
2022-11-12 18:47:36 -08:00
kallsyms_selftest.c
kallsyms: Fix scheduling with interrupts disabled in self-test
2023-01-13 15:09:08 -08:00
kallsyms_selftest.h
kallsyms: Add self-test facility
2022-11-15 00:42:02 -08:00
kallsyms.c
kallsyms: Add self-test facility
2022-11-15 00:42:02 -08:00
kcmp.c
…
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
…
Kconfig.preempt
…
kcov.c
kcov: kmsan: unpoison area->list in kcov_remote_area_put()
2022-10-03 14:03:23 -07:00
kexec_core.c
kexec: remove the unneeded result variable
2022-11-18 13:55:07 -08:00
kexec_elf.c
…
kexec_file.c
kexec: replace crash_mem_range with range
2022-11-18 13:55:07 -08:00
kexec_internal.h
…
kexec.c
…
kheaders.c
…
kmod.c
…
kprobes.c
kprobes: Fix to handle forcibly unoptimized kprobes on freeing_list
2023-03-10 09:29:49 +01:00
ksysfs.c
kernel/ksysfs.c: export kernel cpu byteorder
2022-11-10 19:07:31 +01:00
kthread.c
Merge tag 'interrupting_kthread_stop-for-v5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2022-10-09 16:01:59 -07:00
latencytop.c
…
Makefile
Merge tag 'hardening-v6.2-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
2022-12-23 12:00:24 -08:00
module_signature.c
…
notifier.c
notifier: repair slips in kernel-doc comments
2022-11-30 19:32:30 +01:00
nsproxy.c
fs/exec: switch timens when a task gets a new mm
2022-10-25 15:15:52 -07:00
padata.c
Merge tag 'kbuild-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
2022-12-19 12:33:32 -06:00
panic.c
panic: fix the panic_print NMI backtrace setting
2023-03-10 09:29:47 +01:00
params.c
Merge tag 'driver-core-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2022-12-16 03:54:54 -08:00
pid_namespace.c
rcu-tasks: Fix synchronize_rcu_tasks() VS zap_pid_ns_processes()
2023-03-10 09:28:04 +01:00
pid.c
…
profile.c
…
ptrace.c
…
range.c
…
reboot.c
kernel/reboot: Add SYS_OFF_MODE_RESTART_PREPARE mode
2022-10-04 15:59:36 +02:00
regset.c
…
relay.c
relay: fix type mismatch when allocating memory in relay_create_buf()
2022-12-11 19:30:19 -08:00
resource_kunit.c
…
resource.c
dax/kmem: Fix leak of memory-hotplug resources
2023-03-10 09:29:48 +01:00
rseq.c
rseq: Use pr_warn_once() when deprecated/unknown ABI flags are encountered
2022-11-14 09:58:32 +01:00
scftorture.c
…
scs.c
scs: add support for dynamic shadow call stacks
2022-11-09 18:06:35 +00:00
seccomp.c
…
signal.c
Merge tag 'hardening-v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
2022-12-14 12:20:00 -08:00
smp.c
Merge tag 'bitmap-6.1-rc1' of https://github.com/norov/linux
2022-10-10 12:49:34 -07:00
smpboot.c
…
smpboot.h
…
softirq.c
…
stackleak.c
…
stacktrace.c
…
static_call_inline.c
static_call: Add call depth tracking support
2022-10-17 16:41:16 +02:00
static_call.c
…
stop_machine.c
…
sys_ni.c
…
sys.c
prlimit: do_prlimit needs to have a speculation check
2023-01-21 16:14:17 +01:00
sysctl-test.c
…
sysctl.c
sysctl: fix proc_dobool() usability
2023-03-10 09:28:46 +01:00
task_work.c
…
taskstats.c
…
torture.c
torture: Fix hang during kthread shutdown phase
2023-03-10 09:29:28 +01:00
tracepoint.c
tracepoint: Optimize the critical region of mutex_lock in tracepoint_module_coming()
2022-09-26 13:01:18 -04:00
tsacct.c
…
ucount.c
…
uid16.c
…
uid16.h
…
umh.c
freezer,umh: Fix call_usermode_helper_exec() vs SIGKILL
2023-02-13 16:36:14 +01:00
up.c
…
user_namespace.c
Merge tag 'ucount-rlimits-cleanups-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2022-10-09 16:24:05 -07:00
user-return-notifier.c
…
user.c
kernel/user: Allow user_struct::locked_vm to be usable for iommufd
2022-11-30 20:16:49 -04:00
usermode_driver.c
…
utsname_sysctl.c
kernel/utsname_sysctl.c: Fix hostname polling
2022-10-23 12:01:01 -07:00
utsname.c
…
watch_queue.c
watch_queue: fix IOC_WATCH_QUEUE_SET_SIZE alloc error paths
2023-03-17 08:58:00 +01:00
watchdog_hld.c
…
watchdog.c
…
workqueue_internal.h
…
workqueue.c
workqueue: Protects wq_unbound_cpumask with wq_pool_attach_mutex
2023-03-10 09:28:06 +01:00