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Yi Yang cbc5d1f9a8 rethook: fix a potential memleak in rethook_alloc() 
commit 0a1ebe35cb upstream.

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: 54ecbe6f1e ("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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-26 09:27:42 +01:00
..
bpf
bpf: Initialize same number of free nodes for each pcpu_freelist
2022-11-26 09:27:33 +01:00
cgroup
cgroup/cpuset: Enable update_tasks_cpumask() on top_cpuset
2022-10-21 12:38:59 +02:00
configs
Merge tag 'for-linus-6.0-rc1b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
2022-08-14 09:28:54 -07:00
debug
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dma
dma-mapping: mark dma_supported static
2022-09-07 10:38:28 +02:00
entry
…
events
perf: Fix missing SIGTRAPs
2022-11-04 00:00:27 +09:00
futex
…
gcov
gcov: support GCC 12.1 and newer compilers
2022-10-26 12:22:57 +02:00
irq
…
kcsan
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livepatch
livepatch: fix race between fork and KLP transition
2022-10-21 12:37:51 +02:00
locking
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module
module: tracking: Keep a record of tainted unloaded modules only
2022-10-21 12:39:02 +02:00
power
PM: hibernate: Allow hybrid sleep to work with s2idle
2022-11-04 00:00:31 +09:00
printk
…
rcu
rcu: Keep synchronize_rcu() from enabling irqs in early boot
2022-11-04 00:00:28 +09:00
sched
sched/core: Fix comparison in sched_group_cookie_match()
2022-11-04 00:00:27 +09:00
time
time: Correct the prototype of ns_to_kernel_old_timeval and ns_to_timespec64
2022-08-09 20:02:13 +02:00
trace
rethook: fix a potential memleak in rethook_alloc()
2022-11-26 09:27:42 +01:00
.gitignore
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acct.c
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async.c
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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_watch.c
…
audit.c
…
audit.h
…
auditfilter.c
…
auditsc.c
audit: free audit_proctitle only on task exit
2022-10-21 12:38:04 +02:00
backtracetest.c
…
bounds.c
…
capability.c
…
cfi.c
…
compat.c
…
configs.c
…
context_tracking.c
…
cpu_pm.c
…
cpu.c
…
crash_core.c
vmcoreinfo: add kallsyms_num_syms symbol
2022-08-28 14:02:44 -07:00
crash_dump.c
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cred.c
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delayacct.c
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dma.c
…
exec_domain.c
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exit.c
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extable.c
…
fail_function.c
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fork.c
Merge tag 'execve-v6.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
2022-09-20 08:38:55 -07:00
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
…
jump_label.c
…
kallsyms_internal.h
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kallsyms.c
Merge tag 'mm-nonmm-stable-2022-08-06-2' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2022-08-07 10:03:24 -07:00
kcmp.c
…
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
Merge tag 'mm-nonmm-stable-2022-08-06-2' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2022-08-07 10:03:24 -07:00
kexec_internal.h
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kexec.c
…
kheaders.c
…
kmod.c
…
kprobes.c
kprobe: reverse kp->flags when arm_kprobe failed
2022-11-10 18:17:33 +01:00
ksysfs.c
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kthread.c
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latencytop.c
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Makefile
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module_signature.c
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notifier.c
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nsproxy.c
Revert "fs/exec: allow to unshare a time namespace on vfork+exec"
2022-09-13 10:38:43 -07:00
padata.c
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panic.c
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params.c
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pid_namespace.c
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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
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regset.c
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relay.c
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resource_kunit.c
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resource.c
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rseq.c
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scftorture.c
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scs.c
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seccomp.c
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signal.c
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smp.c
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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
kernel/sys_ni: add compat entry for fadvise64_64
2022-08-20 15:17:45 -07:00
sys.c
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sysctl-test.c
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sysctl.c
kernel/sysctl.c: Remove trailing white space
2022-08-08 09:01:36 -07:00
task_work.c
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taskstats.c
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torture.c
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tracepoint.c
tracepoint: Allow trace events in modules with TAINT_TEST
2022-09-06 22:26:00 -04:00
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
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up.c
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user_namespace.c
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user-return-notifier.c
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user.c
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usermode_driver.c
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utsname_sysctl.c
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utsname.c
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watch_queue.c
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watchdog_hld.c
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watchdog.c
Merge tag 'powerpc-6.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
2022-08-06 16:38:17 -07:00
workqueue_internal.h
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workqueue.c
workqueue: don't skip lockdep work dependency in cancel_work_sync()
2022-08-16 06:27:35 -10:00