twx-linux/tools/testing/selftests
Beau Belgrave cd98c93286 tracing/user_events: Ensure write index cannot be negative
The write index indicates which event the data is for and accesses a
per-file array. The index is passed by user processes during write()
calls as the first 4 bytes. Ensure that it cannot be negative by
returning -EINVAL to prevent out of bounds accesses.

Update ftrace self-test to ensure this occurs properly.

Link: https://lkml.kernel.org/r/20230425225107.8525-2-beaub@linux.microsoft.com

Fixes: 7f5a08c79df3 ("user_events: Add minimal support for trace_event into ftrace")
Reported-by: Doug Cook <dcook@linux.microsoft.com>
Signed-off-by: Beau Belgrave <beaub@linux.microsoft.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2023-04-25 21:03:46 -04:00
..
alsa kselftest/alsa: Run PCM tests for multiple cards in parallel 2023-02-04 09:36:35 +01:00
amd-pstate selftests: amd-pstate: fix TEST_FILES 2023-03-06 17:03:20 -07:00
arm64 linux-kselftest-next-6.3-rc1 2023-02-23 09:37:29 -08:00
bpf Networking fixes for 6.3-rc2, including fixes from netfilter, bpf 2023-03-09 10:56:58 -08:00
breakpoints
capabilities
cgroup cgroup/cpuset: Fix wrong check in update_parent_subparts_cpumask() 2023-01-31 12:14:02 -10:00
clone3 selftests/clone3: test clone3 with CLONE_NEWTIME 2023-03-08 12:31:35 +01:00
core selftests: core: Fix incorrect kernel headers search path 2023-01-30 15:04:52 -07:00
cpu-hotplug
cpufreq
damon selftests/damon/debugfs_rm_non_contexts: hide expected write error messages 2023-02-02 22:32:52 -08:00
dma
dmabuf-heaps selftests: dmabuf-heaps: Fix incorrect kernel headers search path 2023-02-13 09:09:44 -07:00
drivers selftests: bonding: add tests for ether type changes 2023-03-17 07:56:41 +00:00
efivarfs
exec
filesystems linux-kselftest-next-6.3-rc1 2023-02-23 09:37:29 -08:00
firmware
fpu
ftrace LoongArch changes for v6.3 2023-03-01 09:27:00 -08:00
futex selftests: futex: Fix incorrect kernel headers search path 2023-02-13 09:09:44 -07:00
gpio selftests: gpio: Fix incorrect kernel headers search path 2023-02-13 09:09:44 -07:00
hid selftest: hid: fix hid_bpf not set in config 2023-02-23 15:45:25 +01:00
ia64
intel_pstate
iommu iommufd for 6.3 2023-02-24 14:34:12 -08:00
ipc selftests: ipc: Fix incorrect kernel headers search path 2023-02-13 09:09:44 -07:00
ir
kcmp selftests: kcmp: Fix incorrect kernel headers search path 2023-02-13 09:09:45 -07:00
kexec
kmod
kselftest
kvm KVM: selftests: Sync KVM exit reasons in selftests 2023-03-14 10:20:10 -04:00
landlock selftests/landlock: Test ptrace as much as possible with Yama 2023-01-27 18:53:55 +01:00
lib
livepatch
lkdtm
locking
media_tests selftests: media_tests: Fix incorrect kernel headers search path 2023-02-13 09:09:45 -07:00
membarrier linux-kselftest-next-6.3-rc1 2023-02-23 09:37:29 -08:00
memfd - Daniel Verkamp has contributed a memfd series ("mm/memfd: add 2023-02-23 17:09:35 -08:00
memory-hotplug
mincore
mm selftests: use canonical ftrace path 2023-03-29 06:52:07 -04:00
mount
mount_setattr selftests/mount_setattr: fix to make run_tests failure 2023-02-13 16:37:29 -07:00
move_mount_set_group selftests: move_mount_set_group: Fix incorrect kernel headers search path 2023-02-13 09:09:45 -07:00
mqueue
nci
net selftests: net: devlink_port_split.py: skip test if no suitable device available 2023-03-16 17:38:05 -07:00
netfilter selftests: nft_nat: ensuring the listening side is up before starting the client 2023-03-01 17:23:23 +01:00
nolibc selftests/nolibc: Add a "run-user" target to test the program in user land 2023-01-24 15:35:45 -08:00
nsfs
ntb
openat2
perf_events selftests: perf_events: Fix incorrect kernel headers search path 2023-02-13 09:09:45 -07:00
pid_namespace selftests: pid_namespace: Fix incorrect kernel headers search path 2023-02-13 09:09:45 -07:00
pidfd selftests: pidfd: Fix incorrect kernel headers search path 2023-02-13 09:09:45 -07:00
powerpc selftests/powerpc: Fix incorrect kernel headers search path 2023-02-15 22:41:00 +11:00
prctl selftests: Fix spelling mistake "allright" -> "all right" 2023-02-13 09:09:46 -07:00
proc proc: fix PIE proc-empty-vm, proc-pid-vm tests 2023-01-11 16:14:22 -08:00
pstore
ptp selftests/ptp: Remove clean target from Makefile 2023-02-13 10:05:49 -07:00
ptrace selftests: ptrace: Use installed kernel headers search path 2023-02-13 09:09:46 -07:00
rcutorture nolibc updates for v6.3 2023-02-23 09:33:01 -08:00
resctrl
rlimits
rseq linux-kselftest-next-6.3-rc1 2023-02-23 09:37:29 -08:00
rtc
safesetid
sched selftests/sched: fix warn_unused_result build warns 2023-02-13 16:35:54 -07:00
seccomp LoongArch changes for v6.3 2023-03-01 09:27:00 -08:00
sgx
sigaltstack
size
sparc64
splice
static_keys
sync selftests: sync: Fix incorrect kernel headers search path 2023-02-13 09:09:45 -07:00
syscall_user_dispatch
sysctl
tc-testing net/sched: Retire rsvp classifier 2023-02-16 09:27:07 +01:00
tdx selftests: tdx: Use installed kernel headers search path 2023-02-13 09:09:46 -07:00
timens
timers
tmpfs
tpm2 selftests: tpm2: remove redundant ord() 2023-02-13 09:09:46 -07:00
uevent
user
user_events tracing/user_events: Ensure write index cannot be negative 2023-04-25 21:03:46 -04:00
vDSO
watchdog
wireguard
x86 linux-kselftest-next-6.3-rc1 2023-02-23 09:37:29 -08:00
zram
.gitignore
gen_kselftest_tar.sh
kselftest_deps.sh selftests/vm: rename selftests/vm to selftests/mm 2023-01-18 17:12:56 -08:00
kselftest_harness.h testing: kselftest_harness: add filtering and enumerating tests 2023-01-26 16:00:41 -07:00
kselftest_install.sh
kselftest_module.h
kselftest.h
lib.mk selftests: fix LLVM build for i386 and x86_64 2023-03-10 13:41:10 -07:00
Makefile - Daniel Verkamp has contributed a memfd series ("mm/memfd: add 2023-02-23 17:09:35 -08:00
run_kselftest.sh