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| author |   Menglong Dong <imagedong@tencent.com> | 2023-07-19 19:03:30 +0800 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2023-07-19 09:55:22 -0700 |
| commit | 492e797fdab25f2d8eb1b6bb3236f4aac474f878 (patch) | |
| tree | 001dccfccc121c8309d4da6ff7f9fdfefae595bf /kernel/bpf/helpers.c | |
| parent | Merge branch 'allow-bpf_map_sum_elem_count-for-all-program-types' (diff) | |
| download | linux-rng-492e797fdab25f2d8eb1b6bb3236f4aac474f878.tar.xz linux-rng-492e797fdab25f2d8eb1b6bb3236f4aac474f878.zip | |
bpf, x86: initialize the variable "first_off" in save_args()
As Dan Carpenter reported, the variable "first_off" which is passed to
clean_stack_garbage() in save_args() can be uninitialized, which can
cause runtime warnings with KMEMsan. Therefore, init it with 0.
Fixes: 473e3150e30a ("bpf, x86: allow function arguments up to 12 for TRACING")
Cc: Hao Peng <flyingpeng@tencent.com>
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/bpf/09784025-a812-493f-9829-5e26c8691e07@moroto.mountain/
Signed-off-by: Menglong Dong <imagedong@tencent.com>
Link: https://lore.kernel.org/r/20230719110330.2007949-1-imagedong@tencent.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'kernel/bpf/helpers.c')
0 files changed, 0 insertions, 0 deletions