diff options
| author | Emil Tsalapatis <emil@etsalapatis.com> | 2026-02-01 19:42:08 -0500 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2026-02-02 05:50:14 -1000 |
| commit | 2e06d54ea9a25e2925a31eb5410af0f16baa8f19 (patch) | |
| tree | e0e9d07a1521e6693f48be39cf954ca41c667314 /tools | |
| parent | bd4f0822f4ecd98285208e3322ad23c2ead0c878 (diff) | |
tools/sched_ext: Fix data header access during free in scx_sdt
Fix a pointer arithmetic error in scx_sdt during freeing that
causes the allocator to use the wrong memory address for the
allocation's data header.
Fixes: 36929ebd17ae ("tools/sched_ext: add arena based scheduler")
Signed-off-by: Emil Tsalapatis <emil@etsalapatis.com>
Acked-by: Andrea Righi <arighi@nvidia.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/sched_ext/scx_sdt.bpf.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/sched_ext/scx_sdt.bpf.c b/tools/sched_ext/scx_sdt.bpf.c index d965f7d209de..31b09958e8d5 100644 --- a/tools/sched_ext/scx_sdt.bpf.c +++ b/tools/sched_ext/scx_sdt.bpf.c @@ -312,7 +312,7 @@ int scx_alloc_free_idx(struct scx_allocator *alloc, __u64 idx) pos = idx & mask; data = chunk->data[pos]; if (likely(data)) { - data[pos] = (struct sdt_data) { + *data = (struct sdt_data) { .tid.genn = data->tid.genn + 1, }; |