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Tomas Bortoli dfb4a6f219 tracing: Avoid memory leak in predicate_parse() 
In case of errors, predicate_parse() goes to the out_free label
to free memory and to return an error code.

However, predicate_parse() does not free the predicates of the
temporary prog_stack array, thence leaking them.

Link: http://lkml.kernel.org/r/20190528154338.29976-1-tomasbortoli@gmail.com

Cc: stable@vger.kernel.org
Fixes: 80765597bc ("tracing: Rewrite filter logic to be simpler and faster")
Reported-by: syzbot+6b8e0fb820e570c59e19@syzkaller.appspotmail.com
Signed-off-by: Tomas Bortoli <tomasbortoli@gmail.com>
[ Added protection around freeing prog_stack[i].pred ]
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2019-05-28 16:27:58 -04:00
..
bpf
bpf: fix undefined behavior in narrow load handling
2019-05-13 02:05:50 +02:00
cgroup
kernel/sched/psi.c: expose pressure metrics on root cgroup
2019-05-14 19:52:48 -07:00
configs
…
debug
kdb: Fix bound check compiler warning
2019-05-14 13:44:24 +01:00
dma
Merge tag 'dma-mapping-5.2' of git://git.infradead.org/users/hch/dma-mapping
2019-05-09 08:40:55 -07:00
events
mm/mmu_notifier: use correct mmu_notifier events for each invalidation
2019-05-14 09:47:49 -07:00
gcov
gcov: clang support
2019-05-14 19:52:51 -07:00
irq
Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-05-19 10:58:45 -07:00
livepatch
Merge tag 'trace-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
2019-05-15 16:05:47 -07:00
locking
locking/rwsem: Prevent decrement of reader count before increment
2019-05-07 08:46:46 +02:00
power
Merge tag 'pm-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2019-05-06 19:40:31 -07:00
printk
panic: add an option to replay all the printk message in buffer
2019-05-18 15:52:26 -07:00
rcu
Merge tag 'trace-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
2019-05-15 16:05:47 -07:00
sched
kernel/sched/psi.c: expose pressure metrics on root cgroup
2019-05-14 19:52:48 -07:00
time
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-05-16 11:00:20 -07:00
trace
tracing: Avoid memory leak in predicate_parse()
2019-05-28 16:27:58 -04:00
.gitignore
Provide in-kernel headers to make extending kernel easier
2019-04-29 16:48:03 +02:00
acct.c
acct_on(): don't mess with freeze protection
2019-04-04 21:04:13 -04:00
async.c
treewide: Switch printk users from %pf and %pF to %ps and %pS, respectively
2019-04-09 14:19:06 +02:00
audit_fsnotify.c
audit_compare_dname_path(): switch to const struct qstr *
2019-04-28 20:33:43 -04:00
audit_tree.c
fsnotify: switch send_to_group() and ->handle_event to const struct qstr *
2019-04-26 13:51:03 -04:00
audit_watch.c
audit_compare_dname_path(): switch to const struct qstr *
2019-04-28 20:33:43 -04:00
audit.c
audit: connect LOGIN record to its syscall record
2019-03-20 20:57:48 -04:00
audit.h
audit_compare_dname_path(): switch to const struct qstr *
2019-04-28 20:33:43 -04:00
auditfilter.c
Merge branch 'work.dcache' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-05-07 20:03:32 -07:00
auditsc.c
Merge branch 'work.dcache' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-05-07 20:03:32 -07:00
backtracetest.c
backtrace-test: Simplify stack trace handling
2019-04-29 12:37:47 +02:00
bounds.c
…
capability.c
…
compat.c
kernel/compat.c: mark expected switch fall-throughs
2019-05-15 08:16:14 -07:00
configs.c
…
context_tracking.c
…
cpu_pm.c
…
cpu.c
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-05-06 14:50:46 -07:00
crash_core.c
…
crash_dump.c
…
cred.c
…
delayacct.c
…
dma.c
…
elfcore.c
…
exec_domain.c
…
exit.c
mm: change mm_update_next_owner() to update mm->owner with WRITE_ONCE
2019-05-14 19:52:47 -07:00
extable.c
…
fail_function.c
treewide: Switch printk users from %pf and %pF to %ps and %pS, respectively
2019-04-09 14:19:06 +02:00
fork.c
kernel/latencytop.c: rename clear_all_latency_tracing to clear_tsk_latency_tracing
2019-05-14 19:52:49 -07:00
freezer.c
…
futex.c
mm/gup: change GUP fast to use flags rather than a write 'bool'
2019-05-14 09:47:46 -07:00
gen_ikh_data.sh
Provide in-kernel headers to make extending kernel easier
2019-04-29 16:48:03 +02:00
groups.c
…
hung_task.c
…
iomem.c
mm/resource: Use resource_overlaps() to simplify region_intersects()
2019-04-19 12:59:36 +02:00
irq_work.c
irq_work: Do not raise an IPI when queueing work on the local CPU
2019-04-18 14:07:52 +02:00
jump_label.c
locking/static_key: Don't take sleeping locks in __static_key_slow_dec_deferred()
2019-04-29 08:29:21 +02:00
kallsyms.c
…
kcmp.c
…
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
Merge tag 'arm64-mmiowb' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
2019-05-06 16:57:52 -07:00
Kconfig.preempt
…
kcov.c
…
kexec_core.c
power/suspend: Add function to disable secondaries for suspend
2019-05-03 19:42:41 +02:00
kexec_file.c
mm: memblock: make keeping memblock memory opt-in rather than opt-out
2019-05-14 09:47:50 -07:00
kexec_internal.h
…
kexec.c
…
kheaders.c
Provide in-kernel headers to make extending kernel easier
2019-04-29 16:48:03 +02:00
kmod.c
…
kprobes.c
kprobes: Fix error check when reusing optimized probes
2019-04-16 09:38:16 +02:00
ksysfs.c
…
kthread.c
include/: refactor headers to allow kthread.h inclusion in psi_types.h
2019-05-14 19:52:48 -07:00
latencytop.c
kernel/latencytop.c: rename clear_all_latency_tracing to clear_tsk_latency_tracing
2019-05-14 19:52:49 -07:00
Makefile
kernel/Makefile: don't assume that kernel/gen_ikh_data.sh is executable
2019-05-14 19:52:47 -07:00
memremap.c
kernel/memremap.c: remove the unused device_private_entry_fault() export
2019-05-14 09:47:51 -07:00
module_signing.c
…
module-internal.h
kallsyms: store type information in its own array
2019-03-28 15:00:37 +01:00
module.c
Merge tag 'modules-for-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux
2019-05-14 10:55:54 -07:00
notifier.c
kernel/notifier.c: double register detection
2019-05-14 19:52:49 -07:00
nsproxy.c
…
padata.c
padata: Replace padata_attr_type default_attrs field with groups
2019-04-25 22:06:11 +02:00
panic.c
panic: add an option to replay all the printk message in buffer
2019-05-18 15:52:26 -07:00
params.c
…
pid_namespace.c
…
pid.c
kernel/pid.c: remove unneeded hash header file
2019-05-14 19:52:51 -07:00
profile.c
…
ptrace.c
ptrace: take into account saved_sigmask in PTRACE{GET,SET}SIGMASK
2019-03-29 10:01:37 -07:00
range.c
…
reboot.c
panic/reboot: allow specifying reboot_mode for panic only
2019-05-14 19:52:51 -07:00
relay.c
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-03-12 13:27:20 -07:00
resource.c
mm/resource: Use resource_overlaps() to simplify region_intersects()
2019-04-19 12:59:36 +02:00
rseq.c
rseq: Remove superfluous rseq_len from task_struct
2019-04-19 12:39:32 +02:00
seccomp.c
Merge tag 'audit-pr-20190507' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
2019-05-07 19:06:04 -07:00
signal.c
signal: unconditionally leave the frozen state in ptrace_stop()
2019-05-16 10:43:58 -07:00
smp.c
…
smpboot.c
…
smpboot.h
…
softirq.c
softirq: Remove tasklet_hrtimer
2019-03-22 14:36:02 +01:00
stackleak.c
…
stacktrace.c
stacktrace: Provide common infrastructure
2019-04-29 12:37:57 +02:00
stop_machine.c
treewide: Switch printk users from %pf and %pF to %ps and %pS, respectively
2019-04-09 14:19:06 +02:00
sys_ni.c
signal: support CLONE_PIDFD with pidfd_send_signal
2019-05-07 14:31:03 +02:00
sys.c
kernel/sys.c: prctl: fix false positive in validate_prctl_map()
2019-05-14 09:47:44 -07:00
sysctl_binary.c
…
sysctl.c
kernel/sysctl.c: fix proc_do_large_bitmap for large input buffers
2019-05-14 19:52:51 -07:00
task_work.c
…
taskstats.c
genetlink: optionally validate strictly/dumps
2019-04-27 17:07:22 -04:00
test_kprobes.c
…
torture.c
torture: Don't try to offline the last CPU
2019-03-26 14:42:53 -07:00
tracepoint.c
…
tsacct.c
…
ucount.c
…
uid16.c
…
uid16.h
…
umh.c
…
up.c
…
user_namespace.c
…
user-return-notifier.c
…
user.c
kernel/user.c: clean up some leftover code
2019-05-14 19:52:49 -07:00
utsname_sysctl.c
…
utsname.c
…
watchdog_hld.c
kernel/watchdog_hld.c: hard lockup message should end with a newline
2019-04-19 09:46:05 -07:00
watchdog.c
watchdog: Fix typo in comment
2019-04-18 14:05:51 +02:00
workqueue_internal.h
sched/core, workqueues: Distangle worker accounting from rq lock
2019-04-16 16:55:15 +02:00
workqueue.c
Merge branch 'for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
2019-05-09 13:48:52 -07:00