iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
linux/kernel
History
Pratyush Yadav 0758b50692 tracing/ring-buffer: Only do full wait when cpu != RING_BUFFER_ALL_CPUS 
full_hit() directly uses cpu as an array index. Since
RING_BUFFER_ALL_CPUS == -1, calling full_hit() with cpu ==
RING_BUFFER_ALL_CPUS will cause an invalid memory access.

The upstream commit 42fb0a1e84ff ("tracing/ring-buffer: Have polling
block on watermark") already does this. This was missed when backporting
to v5.4.y.

This bug was discovered and resolved using Coverity Static Analysis
Security Testing (SAST) by Synopsys, Inc.

Fixes: e65ac2bdda54 ("tracing/ring-buffer: Have polling block on watermark")
Signed-off-by: Pratyush Yadav <ptyadav@amazon.de>
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-01-18 11:40:46 +01:00
..
bpf
bpf: Ensure correct locking around vulnerable function find_vpid()
2022-10-26 13:22:24 +02:00
cgroup
memcg: fix possible use-after-free in memcg_write_event_control()
2022-12-14 11:30:43 +01:00
configs
…
debug
lockdown: also lock down previous kgdb use
2022-06-06 08:33:48 +02:00
dma
dma-debug: make things less spammy under memory pressure
2022-06-22 14:11:19 +02:00
events
perf/core: Fix data race between perf_event_set_output() and perf_mmap_close()
2022-07-29 17:14:10 +02:00
gcov
gcov: clang: fix the buffer overflow issue
2022-12-08 11:23:00 +01:00
irq
genirq: Don't return error on missing optional irq_request_resources()
2022-08-25 11:17:29 +02:00
livepatch
livepatch: fix race between fork and KLP transition
2022-10-26 13:22:18 +02:00
locking
locking/lockdep: Avoid RCU-induced noinstr fail
2021-11-17 09:48:28 +01:00
power
PM: hibernate: Allow hybrid sleep to work with s2idle
2022-11-03 23:56:55 +09:00
printk
printk: fix return value of printk.devkmsg __setup handler
2022-04-15 14:18:08 +02:00
rcu
rcu: Don't deboost before reporting expedited quiescent state
2022-03-28 08:46:48 +02:00
sched
sched/deadline: Fix priority inheritance with multiple scheduling classes
2022-09-05 10:27:39 +02:00
time
timekeeping: contribute wall clock to rng on time change
2022-08-25 11:18:15 +02:00
trace
tracing/ring-buffer: Only do full wait when cpu != RING_BUFFER_ALL_CPUS
2023-01-18 11:40:46 +01:00
.gitignore
kbuild: update config_data.gz only when the content of .config is changed
2021-05-11 14:04:16 +02:00
acct.c
…
async.c
Revert "module, async: async_synchronize_full() on module init iff async is used"
2022-02-23 11:59:56 +01:00
audit_fsnotify.c
audit: fix potential double free on error path from fsnotify_add_inode_mark
2022-09-05 10:27:38 +02:00
audit_tree.c
audit: move put_tree() to avoid trim_trees refcount underflow and UAF
2021-09-03 10:08:16 +02:00
audit_watch.c
audit: CONFIG_CHANGE don't log internal bookkeeping as an event
2020-10-01 13:17:32 +02:00
audit.c
audit: improve audit queue handling when "audit=1" on cmdline
2022-02-08 18:24:26 +01:00
audit.h
audit: log AUDIT_TIME_* records only from rules
2022-04-15 14:18:04 +02:00
auditfilter.c
audit: fix a net reference leak in audit_list_rules_send()
2020-06-22 09:30:59 +02:00
auditsc.c
audit: log AUDIT_TIME_* records only from rules
2022-04-15 14:18:04 +02:00
backtracetest.c
…
bounds.c
…
capability.c
…
compat.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
configs.c
kernel/configs: Replace GPL boilerplate code with SPDX identifier
2019-07-30 18:34:15 +02:00
context_tracking.c
…
cpu_pm.c
kernel/cpu_pm: Fix uninitted local in cpu_pm
2020-06-22 09:31:22 +02:00
cpu.c
random: clear fast pool, crng, and batches in cpuhp bring up
2022-06-22 14:11:12 +02:00
crash_core.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 230
2019-06-19 17:09:06 +02:00
crash_dump.c
…
cred.c
keys: Fix request_key() cache
2020-01-17 19:48:42 +01:00
delayacct.c
…
dma.c
…
exec_domain.c
…
exit.c
don't dump the threads that had been already exiting when zapped.
2020-11-18 19:20:31 +01:00
extable.c
extable: Add function to search only kernel exception table
2019-08-21 22:23:48 +10:00
fail_function.c
fail_function: Remove a redundant mutex unlock
2020-11-24 13:29:18 +01:00
fork.c
copy_process(): Move fd_install() out of sighand->siglock critical section
2022-02-23 12:00:00 +01:00
freezer.c
Revert "libata, freezer: avoid block device removal while system is frozen"
2019-10-06 09:11:37 -06:00
futex.c
mm, futex: fix shared futex pgoff on shmem huge page
2021-06-30 08:47:55 -04:00
gen_kheaders.sh
kbuild: add variables for compression tools
2020-09-03 11:27:10 +02:00
groups.c
…
hung_task.c
…
iomem.c
mm/nvdimm: add is_ioremap_addr and use that to check ioremap address
2019-07-12 11:05:40 -07:00
irq_work.c
…
jump_label.c
jump_label: Don't warn on __exit jump entries
2019-08-29 15:10:10 +01:00
kallsyms.c
kallsyms: Refactor kallsyms_show_value() to take cred
2020-07-16 08:16:44 +02:00
kcmp.c
exec: Transform exec_update_mutex into a rw_semaphore
2021-01-09 13:44:55 +01:00
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
…
Kconfig.preempt
sched/rt, Kconfig: Unbreak def/oldconfig with CONFIG_PREEMPT=y
2019-07-22 18:05:11 +02:00
kcov.c
…
kexec_core.c
kernel: kexec: remove the lock operation of system_transition_mutex
2021-02-03 23:25:56 +01:00
kexec_elf.c
kexec_elf: support 32 bit ELF files
2019-09-06 23:58:44 +02:00
kexec_file.c
kexec_file: drop weak attribute from arch_kexec_apply_relocations[_add]
2022-07-02 16:28:50 +02:00
kexec_internal.h
…
kexec.c
kexec_load: Disable at runtime if the kernel is locked down
2019-08-19 21:54:15 -07:00
kheaders.c
…
kmod.c
kmod: make request_module() return an error when autoloading is disabled
2020-04-17 10:50:22 +02:00
kprobes.c
kprobes: Skip clearing aggrprobe's post_handler in kprobe-on-ftrace case
2022-11-25 17:42:21 +01:00
ksysfs.c
…
kthread.c
kthread: Fix PF_KTHREAD vs to_kthread() race
2021-09-12 08:56:39 +02:00
latencytop.c
…
Makefile
kbuild: update config_data.gz only when the content of .config is changed
2021-05-11 14:04:16 +02:00
module_signature.c
module: harden ELF info handling
2021-04-07 14:47:38 +02:00
module_signing.c
module: harden ELF info handling
2021-04-07 14:47:38 +02:00
module-internal.h
…
module.c
module/ftrace: handle patchable-function-entry
2022-02-23 11:59:56 +01:00
notifier.c
kernel/notifier.c: intercept duplicate registrations to avoid infinite loops
2020-10-01 13:17:23 +02:00
nsproxy.c
…
padata.c
padata: add separate cpuhp node for CPUHP_PADATA_DEAD
2020-06-17 16:40:22 +02:00
panic.c
panic: ensure preemption is disabled during panic()
2019-10-07 15:47:19 -07:00
params.c
lockdown: Lock down module params that specify hardware parameters (eg. ioport)
2019-08-19 21:54:16 -07:00
pid_namespace.c
memcg: enable accounting for pids in nested pid namespaces
2021-09-22 12:26:37 +02:00
pid.c
kernel/pid.c: convert struct pid count to refcount_t
2019-07-16 19:23:24 -07:00
profile.c
profiling: fix shift too large makes kernel panic
2022-08-25 11:18:02 +02:00
ptrace.c
ptrace: Reimplement PTRACE_KILL by always sending SIGKILL
2022-06-14 18:11:24 +02:00
range.c
…
reboot.c
reboot: fix overflow parsing reboot cpu number
2020-11-18 19:20:30 +01:00
relay.c
kernel/relay.c: fix memleak on destroy relay channel
2020-08-26 10:40:51 +02:00
resource.c
/dev/mem: Revoke mappings when a driver claims the region
2020-06-24 17:50:35 +02:00
rseq.c
…
seccomp.c
seccomp: Invalidate seccomp mode to catch death failures
2022-02-16 12:52:53 +01:00
signal.c
signal handling: don't use BUG_ON() for debugging
2022-07-21 20:59:27 +02:00
smp.c
smp: Fix offline cpu check in flush_smp_call_function_queue()
2022-04-20 09:19:39 +02:00
smpboot.c
kthread: Extract KTHREAD_IS_PER_CPU
2021-02-07 15:35:49 +01:00
smpboot.h
…
softirq.c
Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-07-08 11:01:13 -07:00
stackleak.c
…
stacktrace.c
stacktrace: Don't skip first entry on noncurrent tasks
2019-11-04 21:19:25 +01:00
stop_machine.c
stop_machine: Avoid potential race behaviour
2019-10-17 12:47:12 +02:00
sys_ni.c
kernel/sys_ni: add compat entry for fadvise64_64
2022-09-05 10:27:38 +02:00
sys.c
prctl: allow to setup brk for et_dyn executables
2021-09-26 14:07:08 +02:00
sysctl_binary.c
…
sysctl-test.c
kernel/sysctl-test: Add null pointer test for sysctl.c:proc_dointvec()
2020-10-01 13:17:10 +02:00
sysctl.c
proc: proc_skip_spaces() shouldn't think it is working on C strings
2022-12-08 11:23:06 +01:00
task_work.c
…
taskstats.c
taskstats: fix data-race
2020-01-09 10:19:54 +01:00
test_kprobes.c
…
torture.c
torture: Remove exporting of internal functions
2019-08-01 14:30:22 -07:00
tracepoint.c
tracepoint: Add tracepoint_probe_register_may_exist() for BPF tracing
2021-07-14 16:53:08 +02:00
tsacct.c
taskstats: Cleanup the use of task->exit_code
2022-02-23 11:59:57 +01:00
ucount.c
proc/sysctl: add shared variables for range check
2019-07-18 17:08:07 -07:00
uid16.c
…
uid16.h
…
umh.c
usermodehelper: reset umask to default before executing user process
2020-10-14 10:32:58 +02:00
up.c
smp: Fix smp_call_function_single_async prototype
2021-05-14 09:44:33 +02:00
user_namespace.c
Keyrings namespacing
2019-07-08 19:36:47 -07:00
user-return-notifier.c
…
user.c
Keyrings namespacing
2019-07-08 19:36:47 -07:00
utsname_sysctl.c
…
utsname.c
…
watchdog_hld.c
…
watchdog.c
watchdog: export lockup_detector_reconfigure
2022-08-25 11:18:37 +02:00
workqueue_internal.h
…
workqueue.c
workqueue: don't skip lockdep work dependency in cancel_work_sync()
2022-09-28 11:04:09 +02:00