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: 7f5a08c79d ("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
..
accounting
arch	perf tools fixes for v6.3:	2023-03-10 08:18:46 -08:00
bootconfig	tools/bootconfig: fix single & used for logical condition	2023-02-22 08:27:35 +09:00
bpf	bpftool: Use bpf_{btf,link,map,prog}_get_info_by_fd()	2023-02-16 15:32:45 -08:00
build	tools build: Add test echo-cmd	2023-02-03 13:54:22 -03:00
certs
cgroup	tools:cgroup:memcg_shrinker remove redundant import	2023-01-18 17:12:59 -08:00
counter
debugging
edid
firewire
firmware
gpio	tools: gpio: fix -c option of gpio-event-mon	2023-01-27 14:05:46 +01:00
hv
iio	tools/iio/iio_utils:fix memory leak	2023-01-21 17:52:26 +00:00
include	Including fixes from netfilter, wifi and ipsec.	2023-03-17 13:31:16 -07:00
io_uring
kvm/kvm_stat	tools/kvm_stat: use canonical ftrace path	2023-03-29 06:52:08 -04:00
laptop
leds
lib	tracing updates for 6.3:	2023-02-23 10:20:49 -08:00
memory-model	tools: memory-model: Make plain accesses carry dependencies	2023-01-03 20:47:04 -08:00
mm	tools/mm: allow users to provide additional cflags/ldflags	2023-02-02 22:33:24 -08:00
net/ynl	ynl: make the tooling check the license	2023-03-16 21:22:44 -07:00
objtool	Changes in this cycle were:	2023-03-02 09:45:34 -08:00
pci
pcmcia
perf	perf tools fixes for v6.3:	2023-03-10 08:18:46 -08:00
power	Power management fixes for 6.3-rc3	2023-03-17 11:02:26 -07:00
rcu
scripts	tools: Add LoongArch build infrastructure	2023-02-25 22:12:18 +08:00
spi
testing	tracing/user_events: Ensure write index cannot be negative	2023-04-25 21:03:46 -04:00
thermal
time
tracing	tracing updates for 6.3:	2023-02-23 10:20:49 -08:00
usb
verification	tools/rv: Remove unneeded semicolon	2023-01-31 19:21:12 -05:00
virtio	tools/virtio: Ignore virtio-trace/trace-agent	2023-03-13 02:29:12 -04:00
wmi
Makefile