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David Disseldorp 587a6fda90 watch_queue: fix IOC_WATCH_QUEUE_SET_SIZE alloc error paths 
[ Upstream commit 03e1d60e177eedbd302b77af4ea5e21b5a7ade31 ]

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 08:50:30 +01:00
..
bpf
btf: fix resolving BTF_KIND_VAR after ARRAY, STRUCT, UNION, PTR
2023-03-17 08:50:26 +01:00
cgroup
cpuset: Call set_cpus_allowed_ptr() with appropriate mask for task
2023-02-14 19:11:45 +01:00
configs
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debug
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dma
Merge tag 'mm-stable-2022-10-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2022-10-10 17:53:04 -07:00
entry
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events
perf/core: Call LSM hook after copying perf_event_attr
2023-01-07 11:11:46 +01:00
futex
futex: Fix futex_waitv() hrtimer debug object leak on kcalloc error
2023-01-04 11:28:58 +01:00
gcov
gcov: add support for checksum field
2022-12-31 13:33:11 +01:00
irq
genirq/ipi: Fix NULL pointer deref in irq_data_get_affinity_mask()
2023-03-11 13:55:29 +01:00
kcsan
kcsan: test: don't put the expect array on the stack
2023-02-01 08:34:29 +01:00
livepatch
Merge tag 'livepatching-for-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching
2022-10-10 11:36:19 -07:00
locking
locking/rwsem: Prevent non-first waiter from spinning in down_write() slowpath
2023-03-10 09:34:06 +01:00
module
module: Don't wait for GOING modules
2023-02-01 08:34:37 +01:00
power
PM: EM: fix memory leak with using debugfs_lookup()
2023-03-10 09:33:53 +01:00
printk
kernel/printk/index.c: fix memory leak with using debugfs_lookup()
2023-03-11 13:55:32 +01:00
rcu
rcu-tasks: Handle queue-shrink/callback-enqueue race condition
2023-03-10 09:33:48 +01:00
sched
wait: Return number of exclusive waiters awaken
2023-03-10 09:34:34 +01:00
time
time/debug: Fix memory leak with using debugfs_lookup()
2023-03-10 09:33:52 +01:00
trace
tracing: Add NULL checks for buffer in ring_buffer_free_read_page()
2023-03-11 13:55:32 +01:00
.gitignore
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acct.c
acct: fix potential integer overflow in encode_comp_t()
2022-12-31 13:32:58 +01:00
async.c
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audit_fsnotify.c
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audit_tree.c
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audit_watch.c
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audit.c
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audit.h
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auditfilter.c
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auditsc.c
Merge tag 'audit-pr-20221003' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
2022-10-04 11:05:43 -07:00
backtracetest.c
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bounds.c
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capability.c
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cfi.c
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compat.c
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configs.c
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context_tracking.c
context_tracking: Fix noinstr vs KASAN
2023-03-10 09:33:45 +01:00
cpu_pm.c
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cpu.c
cpu/hotplug: Do not bail-out in DYING/STARTING sections
2022-12-31 13:31:59 +01:00
crash_core.c
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crash_dump.c
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cred.c
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delayacct.c
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dma.c
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exec_domain.c
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exit.c
exit: Detect and fix irq disabled state in oops
2023-03-10 09:33:45 +01:00
extable.c
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fail_function.c
kernel/fail_function: fix memory leak with using debugfs_lookup()
2023-03-11 13:55:39 +01:00
fork.c
fork: allow CLONE_NEWTIME in clone3 flags
2023-03-17 08:50:14 +01:00
freezer.c
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gen_kheaders.sh
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groups.c
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hung_task.c
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iomem.c
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irq_work.c
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jump_label.c
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kallsyms_internal.h
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kallsyms.c
Merge tag 'kcfi-v6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
2022-10-03 17:11:07 -07:00
kcmp.c
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Kconfig.freezer
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Kconfig.hz
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Kconfig.locks
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Kconfig.preempt
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kcov.c
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kexec_core.c
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kexec_elf.c
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kexec_file.c
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kexec_internal.h
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kexec.c
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kheaders.c
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kmod.c
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kprobes.c
kprobes: Fix to handle forcibly unoptimized kprobes on freeing_list
2023-03-10 09:34:27 +01:00
ksysfs.c
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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
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Makefile
cfi: Fix CFI failure with KASAN
2022-12-31 13:33:08 +01:00
module_signature.c
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notifier.c
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nsproxy.c
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padata.c
padata: Fix list iterator in padata_do_serial()
2022-12-31 13:32:34 +01:00
panic.c
panic: fix the panic_print NMI backtrace setting
2023-03-10 09:34:25 +01:00
params.c
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pid_namespace.c
rcu-tasks: Fix synchronize_rcu_tasks() VS zap_pid_ns_processes()
2023-03-10 09:32:52 +01:00
pid.c
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profile.c
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ptrace.c
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range.c
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reboot.c
kernel/reboot: Add SYS_OFF_MODE_RESTART_PREPARE mode
2022-10-04 15:59:36 +02:00
regset.c
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relay.c
relay: fix type mismatch when allocating memory in relay_create_buf()
2022-12-31 13:32:00 +01:00
resource_kunit.c
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resource.c
dax/kmem: Fix leak of memory-hotplug resources
2023-03-10 09:34:25 +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
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scs.c
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seccomp.c
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signal.c
Merge tag 'sched-core-2022-10-07' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2022-10-10 09:10:28 -07:00
smp.c
Merge tag 'bitmap-6.1-rc1' of https://github.com/norov/linux
2022-10-10 12:49:34 -07:00
smpboot.c
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smpboot.h
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softirq.c
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stackleak.c
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stacktrace.c
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static_call_inline.c
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static_call.c
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stop_machine.c
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sys_ni.c
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sys.c
prlimit: do_prlimit needs to have a speculation check
2023-01-24 07:24:34 +01:00
sysctl-test.c
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sysctl.c
proc: proc_skip_spaces() shouldn't think it is working on C strings
2022-12-05 12:09:06 -08:00
task_work.c
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taskstats.c
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torture.c
torture: Fix hang during kthread shutdown phase
2023-03-10 09:34:07 +01:00
tracepoint.c
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tsacct.c
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ucount.c
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uid16.c
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uid16.h
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umh.c
freezer,umh: Fix call_usermode_helper_exec() vs SIGKILL
2023-02-22 12:59:50 +01:00
up.c
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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
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user.c
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usermode_driver.c
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utsname_sysctl.c
kernel/utsname_sysctl.c: Fix hostname polling
2022-10-23 12:01:01 -07:00
utsname.c
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watch_queue.c
watch_queue: fix IOC_WATCH_QUEUE_SET_SIZE alloc error paths
2023-03-17 08:50:30 +01:00
watchdog_hld.c
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watchdog.c
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workqueue_internal.h
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workqueue.c
workqueue: Protects wq_unbound_cpumask with wq_pool_attach_mutex
2023-03-10 09:32:53 +01:00