From: Xin Liu <liuxin350@xxxxxxxxxx>
[ Upstream commit 51e05a8cf8eb34da7473823b7f236a77adfef0b4 ]
I accidentally found that a change in commit 1045b03e07d8 ("netlink: fix
overrun in attribute iteration") was not synchronized to the function
`nla_ok` in tools/lib/bpf/nlattr.c, I think it is necessary to modify,
this patch will do it.
Signed-off-by: Xin Liu <liuxin350@xxxxxxxxxx>
Signed-off-by: Andrii Nakryiko <andrii@xxxxxxxxxx>
Link: https://lore.kernel.org/bpf/20220930090708.62394-1-liuxin350@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
tools/lib/bpf/nlattr.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/lib/bpf/nlattr.c b/tools/lib/bpf/nlattr.c
index 1e69c0c8d413..faa6256d857a 100644
--- a/tools/lib/bpf/nlattr.c
+++ b/tools/lib/bpf/nlattr.c
@@ -31,7 +31,7 @@ static struct nlattr *nla_next(const struct nlattr *nla, int *remaining)
static int nla_ok(const struct nlattr *nla, int remaining)
{
- return remaining >= sizeof(*nla) &&
+ return remaining >= (int)sizeof(*nla) &&
nla->nla_len >= sizeof(*nla) &&
nla->nla_len <= remaining;
}
--
2.35.1
