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i2som-imx-linux/kernel
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Jann Horn 24d5097655 tracing/perf: Use strndup_user() instead of buggy open-coded version 
commit 83540fbc88 upstream.

The first version of this method was missing the check for
`ret == PATH_MAX`; then such a check was added, but it didn't call kfree()
on error, so there was still a small memory leak in the error case.
Fix it by using strndup_user() instead of open-coding it.

Link: http://lkml.kernel.org/r/20190220165443.152385-1-jannh@google.com

Cc: Ingo Molnar <mingo@kernel.org>
Cc: stable@vger.kernel.org
Fixes: 0eadcc7a7b ("perf/core: Fix perf_uprobe_init()")
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-03-23 20:09:56 +01:00
..
bpf
bpf, lpm: fix lookup bug in map_delete_elem
2019-03-23 20:09:51 +01:00
cgroup
fix cgroup_do_mount() handling of failure exits
2019-03-23 20:09:53 +01:00
configs
…
debug
kdb: Don't back trace on a cpu that didn't round up
2019-02-12 19:47:19 +01:00
dma
dma-direct: do not include SME mask in the DMA supported check
2019-01-13 09:51:05 +01:00
events
perf core: Fix perf_proc_update_handler() bug
2019-03-13 14:02:26 -07:00
gcov
…
irq
genirq: Make sure the initial affinity is not empty
2019-03-05 17:58:47 +01:00
livepatch
Merge branch 'for-4.19/upstream' into for-linus
2018-08-20 18:33:50 +02:00
locking
locking/rwsem: Fix (possible) missed wakeup
2019-03-05 17:58:49 +01:00
power
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2018-10-12 12:35:02 +02:00
printk
printk: Fix panic caused by passing log_buf_len to command line
2018-11-13 11:08:48 -08:00
rcu
srcu: Lock srcu_data structure in srcu_gp_start()
2019-01-13 09:51:06 +01:00
sched
sched/wake_q: Fix wakeup ordering for wake_q
2019-03-05 17:58:49 +01:00
time
timekeeping: Use proper seqcount initializer
2019-02-12 19:47:05 +01:00
trace
tracing/perf: Use strndup_user() instead of buggy open-coded version
2019-03-23 20:09:56 +01:00
.gitignore
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acct.c
…
async.c
…
audit_fsnotify.c
…
audit_tree.c
Merge tag 'fsnotify_for_v4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2018-08-17 09:41:28 -07:00
audit_watch.c
…
audit.c
…
audit.h
…
auditfilter.c
…
auditsc.c
Merge tag 'audit-pr-20180814' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
2018-08-15 10:46:54 -07:00
backtracetest.c
…
bounds.c
kbuild: fix kernel/bounds.c 'W=1' warning
2018-11-13 11:08:47 -08:00
capability.c
…
compat.c
…
configs.c
…
context_tracking.c
…
cpu_pm.c
…
cpu.c
cpu/hotplug: Fix "SMT disabled by BIOS" detection for KVM
2019-02-12 19:47:25 +01:00
crash_core.c
kernel/crash_core.c: print timestamp using time64_t
2018-08-22 10:52:47 -07:00
crash_dump.c
…
cred.c
…
delayacct.c
…
dma.c
…
elfcore.c
…
exec_domain.c
…
exit.c
sched/wait: Fix rcuwait_wake_up() ordering
2019-03-05 17:58:49 +01:00
extable.c
…
fail_function.c
…
fork.c
fork: record start_time late
2019-01-13 09:51:04 +01:00
freezer.c
PM / reboot: Eliminate race between reboot and suspend
2018-08-06 12:35:20 +02:00
futex_compat.c
…
futex.c
futex: Fix (possible) missed wakeup
2019-03-05 17:58:49 +01:00
groups.c
…
hung_task.c
kernel/hung_task.c: force console verbose before panic
2019-02-12 19:47:19 +01:00
iomem.c
…
irq_work.c
…
jump_label.c
jump_label: Fix typo in warning message
2018-09-10 10:15:48 +02:00
kallsyms.c
kallsyms, x86: Export addresses of PTI entry trampolines
2018-08-14 19:12:29 -03:00
kcmp.c
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Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
…
Kconfig.preempt
kconfig: include kernel/Kconfig.preempt from init/Kconfig
2018-08-02 08:06:54 +09:00
kcov.c
kernel/kcov.c: mark write_comp_data() as notrace
2019-02-12 19:47:20 +01:00
kexec_core.c
…
kexec_file.c
…
kexec_internal.h
…
kexec.c
…
kmod.c
…
kprobes.c
kprobes: Return error if we fail to reuse kprobe instead of BUG_ON()
2018-11-13 11:08:28 -08:00
ksysfs.c
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kthread.c
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-08-13 11:25:07 -07:00
latencytop.c
…
Makefile
…
memremap.c
mm, devm_memremap_pages: add MEMORY_DEVICE_PRIVATE support
2019-01-13 09:51:04 +01:00
module_signing.c
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module-internal.h
…
module.c
kobject: return error code if writing /sys/.../uevent fails
2019-02-12 19:47:06 +01:00
notifier.c
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nsproxy.c
…
padata.c
…
panic.c
panic: avoid deadlocks in re-entrant console drivers
2018-12-29 13:37:57 +01:00
params.c
…
pid_namespace.c
…
pid.c
Fix failure path in alloc_pid()
2019-01-13 09:51:06 +01:00
profile.c
…
ptrace.c
ptrace: Remove unused ptrace_may_access_sched() and MODE_IBRS
2018-12-05 19:32:03 +01:00
range.c
…
reboot.c
PM / reboot: Eliminate race between reboot and suspend
2018-08-06 12:35:20 +02:00
relay.c
relay: check return of create_buf_file() properly
2019-03-13 14:02:35 -07:00
resource.c
…
rseq.c
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seccomp.c
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signal.c
signal: Restore the stop PTRACE_EVENT_EXIT
2019-02-20 10:25:48 +01:00
smp.c
cpu/hotplug: Fix "SMT disabled by BIOS" detection for KVM
2019-02-12 19:47:25 +01:00
smpboot.c
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smpboot.h
…
softirq.c
nohz: Fix missing tick reprogram when interrupting an inline softirq
2018-08-03 15:52:10 +02:00
stacktrace.c
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stop_machine.c
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-08-13 11:25:07 -07:00
sys_ni.c
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sys.c
kernel/sys.c: remove duplicated include
2018-09-20 22:01:11 +02:00
sysctl_binary.c
…
sysctl.c
proc/sysctl: fix return error for proc_doulongvec_minmax()
2019-02-12 19:47:19 +01:00
task_work.c
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taskstats.c
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test_kprobes.c
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torture.c
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tracepoint.c
tracepoint: Fix tracepoint array element size mismatch
2018-10-17 15:35:29 -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
userns: also map extents in the reverse map to kernel IDs
2018-11-13 11:09:00 -08:00
user-return-notifier.c
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user.c
userns: use irqsave variant of refcount_dec_and_lock()
2018-08-22 10:52:47 -07:00
utsname_sysctl.c
sys: don't hold uts_sem while accessing userspace memory
2018-08-11 02:05:53 -05:00
utsname.c
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watchdog_hld.c
watchdog: Mark watchdog touch functions as notrace
2018-08-30 12:56:40 +02:00
watchdog.c
watchdog: Mark watchdog touch functions as notrace
2018-08-30 12:56:40 +02:00
workqueue_internal.h
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workqueue.c
watchdog: Mark watchdog touch functions as notrace
2018-08-30 12:56:40 +02:00