The ctx->mech_used.data allocated by kmemdup is not freed in neither
gss_import_v2_context nor it only caller radeon_driver_open_kms.
Thus, this patch reform the last call of gss_import_v2_context to the
gss_krb5_import_ctx_v2, preventing the memleak while keepping the return
formation.
Fixes: 47d848077629 ("gss_krb5: handle new context format from gssd")
Signed-off-by: Zhipeng Lu <alexious@xxxxxxxxxx>
---
net/sunrpc/auth_gss/gss_krb5_mech.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/net/sunrpc/auth_gss/gss_krb5_mech.c b/net/sunrpc/auth_gss/gss_krb5_mech.c
index e31cfdf7eadc..1e54bd63e3f0 100644
--- a/net/sunrpc/auth_gss/gss_krb5_mech.c
+++ b/net/sunrpc/auth_gss/gss_krb5_mech.c
@@ -398,6 +398,7 @@ gss_import_v2_context(const void *p, const void *end, struct krb5_ctx *ctx,
u64 seq_send64;
int keylen;
u32 time32;
+ int ret;
p = simple_get_bytes(p, end, &ctx->flags, sizeof(ctx->flags));
if (IS_ERR(p))
@@ -450,8 +451,14 @@ gss_import_v2_context(const void *p, const void *end, struct krb5_ctx *ctx,
}
ctx->mech_used.len = gss_kerberos_mech.gm_oid.len;
- return gss_krb5_import_ctx_v2(ctx, gfp_mask);
+ ret = gss_krb5_import_ctx_v2(ctx, gfp_mask);
+ if (ret) {
+ p = ERR_PTR(ret);
+ goto out_free;
+ };
+out_free:
+ kfree(ctx->mech_used.data);
out_err:
return PTR_ERR(p);
}
--
2.34.1
