Jinghao Jia de4825a444 samples/bpf: syscall_tp_user: Fix array out-of-bound access ... [ Upstream commit 9220c3ef6f ] Commit 06744f2469 ("samples/bpf: Add openat2() enter/exit tracepoint to syscall_tp sample") added two more eBPF programs to support the openat2() syscall. However, it did not increase the size of the array that holds the corresponding bpf_links. This leads to an out-of-bound access on that array in the bpf_object__for_each_program loop and could corrupt other variables on the stack. On our testing QEMU, it corrupts the map1_fds array and causes the sample to fail: # ./syscall_tp prog #0: map ids 4 5 verify map:4 val: 5 map_lookup failed: Bad file descriptor Dynamically allocate the array based on the number of programs reported by libbpf to prevent similar inconsistencies in the future Fixes: 06744f2469 ("samples/bpf: Add openat2() enter/exit tracepoint to syscall_tp sample") Signed-off-by: Jinghao Jia <jinghao@linux.ibm.com> Signed-off-by: Ruowen Qin <ruowenq2@illinois.edu> Signed-off-by: Jinghao Jia <jinghao7@illinois.edu> Link: https://lore.kernel.org/r/20230917214220.637721-4-jinghao7@illinois.edu Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-11-28 17:19:48 +00:00
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acrn
auxdisplay
binderfs
bpf	samples/bpf: syscall_tp_user: Fix array out-of-bound access	2023-11-28 17:19:48 +00:00
configfs
connector
coresight
fanotify
fprobe	fprobe: Pass return address to the handlers	2023-06-06 21:39:55 +09:00
ftrace	samples: ftrace: Replace bti assembly with hint for older compiler	2023-08-21 22:03:58 -04:00
hid	bpf: Replace deprecated -target with --target= for Clang	2023-06-29 15:46:17 +02:00
hidraw
hw_breakpoint	samples/hw_breakpoint: mark sample_hbp as static	2023-07-26 11:17:19 -07:00
kdb
kfifo
kmemleak	kmemleak-test: drop __init to get better backtrace	2023-06-09 16:25:40 -07:00
kobject
kprobes
landlock
livepatch
mei
nitro_enclaves
pfsm	samples: Add userspace example for TI TPS6594 PFSM	2023-06-15 13:41:53 +02:00
pidfd
pktgen	samples: pktgen: fix append mode failed issue	2023-07-03 09:15:26 +01:00
qmi
rpmsg
rust
seccomp
timers
trace_events
trace_printk
uhid
user_events
v4l
vfio-mdev	VFIO updates for v6.6-rc1	2023-08-30 20:36:01 -07:00
vfs
watch_queue
watchdog
Kconfig	vfio-dev/mdpy-fb: Use fbdev I/O helpers	2023-08-04 15:54:39 +02:00
Makefile	samples: Add userspace example for TI TPS6594 PFSM	2023-06-15 13:41:53 +02:00