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Yi Yang 0a1ebe35cb rethook: fix a potential memleak in rethook_alloc() 
In rethook_alloc(), the variable rh is not freed or passed out
if handler is NULL, which could lead to a memleak, fix it.

Link: https://lore.kernel.org/all/20221110104438.88099-1-yiyang13@huawei.com/
[Masami: Add "rethook:" tag to the title.]

Fixes: 54ecbe6f1ed5 ("rethook: Add a generic return hook")
Cc: stable@vger.kernel.org
Signed-off-by: Yi Yang <yiyang13@huawei.com>
Acke-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
2022-11-18 10:15:34 +09:00
..
bpf
bpf: Fix wrong reg type conversion in release_reference()
2022-11-04 00:24:12 +01:00
cgroup
cgroup fixes for v6.1-rc1
2022-10-17 18:52:43 -07:00
configs
Kbuild: add Rust support
2022-09-28 09:02:20 +02:00
debug
mm: remove vmacache
2022-09-26 19:46:18 -07:00
dma
- Yu Zhao's Multi-Gen LRU patches are here. They've been under test in
2022-10-10 17:53:04 -07:00
entry
entry: kmsan: introduce kmsan_unpoison_entry_regs()
2022-10-03 14:03:25 -07:00
events
perf/hw_breakpoint: test: Skip the test if dependencies unmet
2022-11-02 12:22:05 +01:00
futex
freezer,sched: Rewrite core freezer logic
2022-09-07 21:53:50 +02:00
gcov
gcov: support GCC 12.1 and newer compilers
2022-10-20 21:27:22 -07:00
irq
genirq: Provide generic_handle_domain_irq_safe().
2022-09-19 15:08:38 +02:00
kcsan
treewide: use get_random_bytes() when possible
2022-10-11 17:42:58 -06:00
livepatch
Livepatching changes for 6.1
2022-10-10 11:36:19 -07:00
locking
treewide: use prandom_u32_max() when possible, part 1
2022-10-11 17:42:55 -06:00
module
module: tracking: Keep a record of tainted unloaded modules only
2022-10-10 12:16:19 -07:00
power
PM: hibernate: Allow hybrid sleep to work with s2idle
2022-10-25 14:53:19 +02:00
printk
printk: Mark __printk percpu data ready __ro_after_init
2022-09-29 15:20:52 +02:00
rcu
rcu: Keep synchronize_rcu() from enabling irqs in early boot
2022-10-20 15:34:49 -07:00
sched
sched: Introduce struct balance_callback to avoid CFI mismatches
2022-10-17 16:41:25 +02:00
time
treewide: use prandom_u32_max() when possible, part 1
2022-10-11 17:42:55 -06:00
trace
rethook: fix a potential memleak in rethook_alloc()
2022-11-18 10:15:34 +09:00
.gitignore
…
acct.c
acct: use VMA iterator instead of linked list
2022-09-26 19:46:22 -07:00
async.c
…
audit_fsnotify.c
audit: fix potential double free on error path from fsnotify_add_inode_mark
2022-08-22 18:50:06 -04:00
audit_tree.c
audit: use fsnotify group lock helpers
2022-04-25 14:37:28 +02:00
audit_watch.c
audit_init_parent(): constify path
2022-09-01 17:39:30 -04:00
audit.c
audit: use time_after to compare time
2022-08-29 19:47:03 -04:00
audit.h
audit: remove selinux_audit_rule_update() declaration
2022-09-07 11:30:15 -04:00
auditfilter.c
…
auditsc.c
audit/stable-6.1 PR 20221003
2022-10-04 11:05:43 -07:00
backtracetest.c
…
bounds.c
mm: multi-gen LRU: minimal implementation
2022-09-26 19:46:09 -07:00
capability.c
…
cfi.c
cfi: Switch to -fsanitize=kcfi
2022-09-26 10:13:13 -07:00
compat.c
…
configs.c
…
context_tracking.c
MAINTAINERS: Add Paul as context tracking maintainer
2022-07-05 13:33:00 -07:00
cpu_pm.c
context_tracking: Take IRQ eqs entrypoints over RCU
2022-07-05 13:32:59 -07:00
cpu.c
Intel Trust Domain Extensions
2022-05-23 17:51:12 -07:00
crash_core.c
vmcoreinfo: add kallsyms_num_syms symbol
2022-08-28 14:02:44 -07:00
crash_dump.c
…
cred.c
…
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
- hfs and hfsplus kmap API modernization from Fabio Francesco
2022-10-12 11:00:22 -07:00
extable.c
context_tracking: Take NMI eqs entrypoints over RCU
2022-07-05 13:32:59 -07:00
fail_function.c
fail_function: fix wrong use of fei_attr_remove()
2022-09-11 21:55:11 -07:00
fork.c
- hfs and hfsplus kmap API modernization from Fabio Francesco
2022-10-12 11:00:22 -07:00
freezer.c
freezer,sched: Rewrite core freezer logic
2022-09-07 21:53:50 +02:00
gen_kheaders.sh
kbuild: build init/built-in.a just once
2022-09-29 04:40:15 +09:00
groups.c
security: Add LSM hook to setgroups() syscall
2022-07-15 18:21:49 +00:00
hung_task.c
sched: Fix more TASK_state comparisons
2022-09-30 16:50:39 +02:00
iomem.c
…
irq_work.c
irq_work: use kasan_record_aux_stack_noalloc() record callstack
2022-04-15 14:49:55 -07:00
jump_label.c
jump_label: make initial NOP patching the special case
2022-06-24 09:48:55 +02:00
kallsyms_internal.h
kallsyms: move declarations to internal header
2022-07-17 17:31:39 -07:00
kallsyms.c
kcfi updates for v6.1-rc1
2022-10-03 17:11:07 -07:00
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: replace kmap() with kmap_local_page()
2022-09-11 21:55:08 -07:00
kexec_elf.c
…
kexec_file.c
panic, kexec: make __crash_kexec() NMI safe
2022-09-11 21:55:06 -07:00
kexec_internal.h
panic, kexec: make __crash_kexec() NMI safe
2022-09-11 21:55:06 -07:00
kexec.c
panic, kexec: make __crash_kexec() NMI safe
2022-09-11 21:55:06 -07:00
kheaders.c
…
kmod.c
…
kprobes.c
kprobe: reverse kp->flags when arm_kprobe failed
2022-11-04 08:49:31 +09:00
ksysfs.c
kexec: turn all kexec_mutex acquisitions into trylocks
2022-09-11 21:55:06 -07:00
kthread.c
signal: break out of wait loops on kthread_stop()
2022-10-09 16:01:59 -07:00
latencytop.c
latencytop: use the last element of latency_record of system
2022-09-11 21:55:12 -07:00
Makefile
kmsan: disable instrumentation of unsupported common kernel code
2022-10-03 14:03:20 -07:00
module_signature.c
…
notifier.c
notifier: Add blocking/atomic_notifier_chain_register_unique_prio()
2022-05-19 19:30:30 +02:00
nsproxy.c
Revert "fs/exec: allow to unshare a time namespace on vfork+exec"
2022-09-13 10:38:43 -07:00
padata.c
…
panic.c
kernel/panic: Drop unblank_screen call
2022-09-01 16:55:35 +02:00
params.c
…
pid_namespace.c
kernel: pid_namespace: use NULL instead of using plain integer as pointer
2022-04-29 14:38:00 -07:00
pid.c
gfs2: Add glockfd debugfs file
2022-06-29 13:07:16 +02:00
profile.c
kernel/profile.c: simplify duplicated code in profile_setup()
2022-09-11 21:55:12 -07:00
ptrace.c
freezer,sched: Rewrite core freezer logic
2022-09-07 21:53:50 +02:00
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: use kvcalloc to alloc page array in relay_alloc_page_array
2022-10-03 14:21:43 -07:00
resource_kunit.c
…
resource.c
resource: Introduce alloc_free_mem_region()
2022-07-21 17:19:25 -07:00
rseq.c
rseq: Kill process when unknown flags are encountered in ABI structures
2022-08-01 15:21:42 +02:00
scftorture.c
scftorture: Fix distribution of short handler delays
2022-04-11 17:07:29 -07:00
scs.c
…
seccomp.c
seccomp: Add wait_killable semantic to seccomp user notifier
2022-05-03 14:11:58 -07:00
signal.c
Scheduler changes for v6.1:
2022-10-10 09:10:28 -07:00
smp.c
bitmap patches for v6.1-rc1
2022-10-10 12:49:34 -07:00
smpboot.c
smpboot: use atomic_try_cmpxchg in cpu_wait_death and cpu_report_death
2022-09-11 21:55:10 -07:00
smpboot.h
…
softirq.c
context_tracking: Take IRQ eqs entrypoints over RCU
2022-07-05 13:32:59 -07:00
stackleak.c
stackleak: add on/off stack variants
2022-05-08 01:33:09 -07:00
stacktrace.c
…
static_call_inline.c
…
static_call.c
…
stop_machine.c
Scheduler changes in this cycle were:
2022-05-24 11:11:13 -07:00
sys_ni.c
kernel/sys_ni: add compat entry for fadvise64_64
2022-08-20 15:17:45 -07:00
sys.c
Random number generator updates for Linux 6.1-rc1.
2022-10-10 10:41:21 -07:00
sysctl-test.c
kernel/sysctl-test: use SYSCTL_{ZERO/ONE_HUNDRED} instead of i_{zero/one_hundred}
2022-09-08 16:56:45 -07:00
sysctl.c
- Yu Zhao's Multi-Gen LRU patches are here. They've been under test in
2022-10-10 17:53:04 -07:00
task_work.c
task_work: use try_cmpxchg in task_work_add, task_work_cancel_match and task_work_run
2022-09-11 21:55:10 -07:00
taskstats.c
genetlink: start to validate reserved header bytes
2022-08-29 12:47:15 +01:00
torture.c
…
tracepoint.c
tracepoint: Optimize the critical region of mutex_lock in tracepoint_module_coming()
2022-09-26 13:01:18 -04:00
tsacct.c
taskstats: version 12 with thread group and exe info
2022-04-29 14:38:03 -07:00
ucount.c
ucounts: Split rlimit and ucount values and max values
2022-05-18 18:24:57 -05:00
uid16.c
…
uid16.h
…
umh.c
freezer,sched: Rewrite core freezer logic
2022-09-07 21:53:50 +02:00
up.c
…
user_namespace.c
ucounts: Split rlimit and ucount values and max values
2022-10-09 16:24:05 -07:00
user-return-notifier.c
…
user.c
…
usermode_driver.c
blob_to_mnt(): kern_unmount() is needed to undo kern_mount()
2022-05-19 23:25:47 -04:00
utsname_sysctl.c
kernel/utsname_sysctl.c: Fix hostname polling
2022-10-23 12:01:01 -07:00
utsname.c
…
watch_queue.c
This was a moderately busy cycle for documentation, but nothing all that
2022-08-02 19:24:24 -07:00
watchdog_hld.c
Revert "printk: add functions to prefer direct printing"
2022-06-23 18:41:40 +02:00
watchdog.c
powerpc updates for 6.0
2022-08-06 16:38:17 -07:00
workqueue_internal.h
…
workqueue.c
kcfi updates for v6.1-rc1
2022-10-03 17:11:07 -07:00