From 27600805e62f800bacf990354632eae4e487d34c Mon Sep 17 00:00:00 2001 From: Yazen Ghannam Date: Thu, 3 Sep 2026 10:43:25 -0500 Subject: x86/amd_node: Fix PCI device reference counting in amd_smn_init() The local "root" pointer is a temporary variable used during the device search. Therefore, refcount related to the search iterators should be cleaned up after the search is complete. Use the __free() cleanup macro to ensure the refcount is decremented when the temporary pointer goes out of scope. Additionally, increment the refcount when caching a root pointer. This ensures the in-use refcount is separate from the temporary search refcounting. Finally, drop the redundant "root = NULL" before the second search loop. The pci_get_class() iterator always decrements the refcount of its "from" argument, so the first loop can only fall through with "root" already NULL. Fixes: 0a4b61d9c2e4 ("x86/amd_node: Fix AMD root device caching") Closes: https://sashiko.dev/#/patchset/20260806160159.230453-1-jason.andryuk%40amd.com Reported-by: Sashiko Assisted-by: LLM Signed-off-by: Yazen Ghannam Signed-off-by: Borislav Petkov (AMD) Reviewed-by: Mario Limonciello (AMD) Cc: Link: https://patch.msgid.link/20260903154325.74343-1-yazen.ghannam@amd.com --- net/ceph/auth_x.h | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 net/ceph/auth_x.h (limited to 'net/ceph/auth_x.h') diff --git a/net/ceph/auth_x.h b/net/ceph/auth_x.h new file mode 100644 index 000000000..c03735f96 --- /dev/null +++ b/net/ceph/auth_x.h @@ -0,0 +1,54 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _FS_CEPH_AUTH_X_H +#define _FS_CEPH_AUTH_X_H + +#include + +#include + +#include "crypto.h" +#include "auth_x_protocol.h" + +/* + * Handle ticket for a single service. + */ +struct ceph_x_ticket_handler { + struct rb_node node; + unsigned int service; + + struct ceph_crypto_key session_key; + bool have_key; + + u64 secret_id; + struct ceph_buffer *ticket_blob; + + time64_t renew_after, expires; +}; + +#define CEPHX_AU_ENC_BUF_LEN 128 /* big enough for encrypted blob */ + +struct ceph_x_authorizer { + struct ceph_authorizer base; + struct ceph_crypto_key session_key; + struct ceph_buffer *buf; + unsigned int service; + u64 nonce; + u64 secret_id; + char enc_buf[CEPHX_AU_ENC_BUF_LEN] __aligned(8); +}; + +struct ceph_x_info { + struct ceph_crypto_key secret; + + bool starting; + u64 server_challenge; + + unsigned int have_keys; + struct rb_root ticket_handlers; + + struct ceph_x_authorizer auth_authorizer; +}; + +int ceph_x_init(struct ceph_auth_client *ac); + +#endif -- cgit v1.3.1