Punit Agrawal
a993159a2a
kprobes: Do not use local variable when creating debugfs file ...
[ Upstream commit 8f7262cd66699a4b02eb7549b35c81b2116aad95 ]
debugfs_create_file() takes a pointer argument that can be used during
file operation callbacks (accessible via i_private in the inode
structure). An obvious requirement is for the pointer to refer to
valid memory when used.
When creating the debugfs file to dynamically enable / disable
kprobes, a pointer to local variable is passed to
debugfs_create_file(); which will go out of scope when the init
function returns. The reason this hasn't triggered random memory
corruption is because the pointer is not accessed during the debugfs
file callbacks.
Since the enabled state is managed by the kprobes_all_disabled global
variable, the local variable is not needed. Fix the incorrect (and
unnecessary) usage of local variable during debugfs_file_create() by
passing NULL instead.
Link: https://lkml.kernel.org/r/163163031686.489837.4476867635937014973.stgit@devnote2
Fixes: bf8f6e5b3e
2021-11-17 09:48:36 +01:00
bpf: Prevent increasing bpf_jit_limit above max
2021-11-17 09:48:20 +01:00
cgroup: Make rebind_subsystems() disable v2 controllers all at once
2021-11-17 09:48:34 +01:00
kdb: Make memory allocations more robust
2021-03-04 10:26:10 +01:00
dma-debug: fix sg checks in debug_dma_map_sg()
2021-10-27 09:54:25 +02:00
events: Reuse value read using READ_ONCE instead of re-reading it
2021-09-22 12:26:41 +02:00
gcov: re-fix clang-11+ support
2021-04-14 08:24:10 +02:00
genirq/timings: Fix error return code in irq_timings_test_irqs()
2021-09-15 09:47:29 +02:00
locking/lockdep: Avoid RCU-induced noinstr fail
2021-11-17 09:48:28 +01:00
PM: hibernate: Get block device exclusively in swsusp_check()
2021-11-17 09:48:32 +01:00
printk/console: Allow to disable console output by using console="" or console=null
2021-11-12 14:43:03 +01:00
rcu: Fix existing exp request check in sync_sched_exp_online_cleanup()
2021-11-17 09:48:33 +01:00
cpufreq: schedutil: Use kobject release() method to free sugov_tunables
2021-10-06 15:42:29 +02:00
Revert "posix-cpu-timers: Force next expiration recalc after itimer reset"
2021-09-16 12:56:13 +02:00
tracing/cfi: Fix cmp_entries_* functions signature mismatch
2021-11-17 09:48:31 +01:00
kbuild: update config_data.gz only when the content of .config is changed
2021-05-11 14:04:16 +02:00
audit: fix a net reference leak in audit_list_rules_send()
2020-06-22 09:30:59 +02:00
audit: fix a net reference leak in audit_list_rules_send()
2020-06-22 09:30:59 +02:00
audit: move put_tree() to avoid trim_trees refcount underflow and UAF
2021-09-03 10:08:16 +02:00
audit: CONFIG_CHANGE don't log internal bookkeeping as an event
2020-10-01 13:17:32 +02:00
audit: fix a net reference leak in audit_list_rules_send()
2020-06-22 09:30:59 +02:00
audit: fix possible null-pointer dereference in audit_filter_rules
2021-10-27 09:54:27 +02:00
cpu/hotplug: Cure the cpusets trainwreck
2021-07-19 08:53:15 +02:00
kernel/cpu_pm: Fix uninitted local in cpu_pm
2020-06-22 09:31:22 +02:00
don't dump the threads that had been already exiting when zapped.
2020-11-18 19:20:31 +01:00
fail_function: Remove a redundant mutex unlock
2020-11-24 13:29:18 +01:00
mm/hugetlb: initialize hugetlb_usage in mm_init
2021-09-22 12:26:37 +02:00
mm, futex: fix shared futex pgoff on shmem huge page
2021-06-30 08:47:55 -04:00
kbuild: add variables for compression tools
2020-09-03 11:27:10 +02:00
kallsyms: Refactor kallsyms_show_value() to take cred
2020-07-16 08:16:44 +02:00
exec: Transform exec_update_mutex into a rw_semaphore
2021-01-09 13:44:55 +01:00
kernel: kexec: remove the lock operation of system_transition_mutex
2021-02-03 23:25:56 +01:00
kernel: kexec_file: fix error return code of kexec_calculate_store_digests()
2021-05-19 10:08:28 +02:00
kprobes: Do not use local variable when creating debugfs file
2021-11-17 09:48:36 +01:00
kthread: Fix PF_KTHREAD vs to_kthread() race
2021-09-12 08:56:39 +02:00
kbuild: update config_data.gz only when the content of .config is changed
2021-05-11 14:04:16 +02:00
module: limit enabling module.sig_enforce
2021-06-30 08:47:42 -04:00
module: harden ELF info handling
2021-04-07 14:47:38 +02:00
module: harden ELF info handling
2021-04-07 14:47:38 +02:00
kernel/notifier.c: intercept duplicate registrations to avoid infinite loops
2020-10-01 13:17:23 +02:00
padata: add separate cpuhp node for CPUHP_PADATA_DEAD
2020-06-17 16:40:22 +02:00
memcg: enable accounting for pids in nested pid namespaces
2021-09-22 12:26:37 +02:00
profiling: fix shift-out-of-bounds bugs
2021-09-26 14:07:09 +02:00
ptrace: make ptrace() fail if the tracee changed its pid unexpectedly
2021-05-26 12:05:15 +02:00
reboot: fix overflow parsing reboot cpu number
2020-11-18 19:20:30 +01:00
kernel/relay.c: fix memleak on destroy relay channel
2020-08-26 10:40:51 +02:00
/dev/mem: Revoke mappings when a driver claims the region
2020-06-24 17:50:35 +02:00
seccomp: Add missing return in non-void function
2021-03-04 10:26:45 +01:00
signal: Remove the bogus sigkill_pending in ptrace_stop
2021-11-17 09:48:24 +01:00
smp: Fix smp_call_function_single_async prototype
2021-05-14 09:44:33 +02:00
kthread: Extract KTHREAD_IS_PER_CPU
2021-02-07 15:35:49 +01:00
prctl: allow to setup brk for et_dyn executables
2021-09-26 14:07:08 +02:00
kernel/sysctl-test: Add null pointer test for sysctl.c:proc_dointvec()
2020-10-01 13:17:10 +02:00
sysctl.c: fix underflow value setting risk in vm_table
2021-03-17 17:03:45 +01:00
tracepoint: Add tracepoint_probe_register_may_exist() for BPF tracing
2021-07-14 16:53:08 +02:00
usermodehelper: reset umask to default before executing user process
2020-10-14 10:32:58 +02:00
smp: Fix smp_call_function_single_async prototype
2021-05-14 09:44:33 +02:00
workqueue: make sysfs of unbound kworker cpumask more clever
2021-11-17 09:48:31 +01:00
a993159a2a