diff mbox series

[v1,05/41] SUNRPC: Obscure Kerberos session key

Message ID 167362331943.8960.1546242627205639130.stgit@bazille.1015granger.net (mailing list archive)
State New, archived
Headers show
Series RPCSEC GSS krb5 enhancements | expand

Commit Message

Chuck Lever Jan. 13, 2023, 3:21 p.m. UTC 
From: Chuck Lever <chuck.lever@oracle.com>

ctx->Ksess is never used after import has completed. Obscure it
immediately so it cannot be re-used or copied.

Tested-by: Scott Mayhew <smayhew@redhat.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
---
 net/sunrpc/auth_gss/gss_krb5_mech.c |    1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/net/sunrpc/auth_gss/gss_krb5_mech.c b/net/sunrpc/auth_gss/gss_krb5_mech.c
index 6d59794c9b69..9b489f7f2720 100644
--- a/net/sunrpc/auth_gss/gss_krb5_mech.c
+++ b/net/sunrpc/auth_gss/gss_krb5_mech.c
@@ -550,6 +550,7 @@  gss_import_sec_context_kerberos(const void *p, size_t len,
 		ret = gss_import_v1_context(p, end, ctx);
 	else
 		ret = gss_import_v2_context(p, end, ctx, gfp_mask);
+	memzero_explicit(&ctx->Ksess, sizeof(ctx->Ksess));
 	if (ret) {
 		kfree(ctx);
 		return ret;