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/crypto.h | 53 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 net/ceph/crypto.h (limited to 'net/ceph/crypto.h') diff --git a/net/ceph/crypto.h b/net/ceph/crypto.h new file mode 100644 index 000000000..3a2ade15a --- /dev/null +++ b/net/ceph/crypto.h @@ -0,0 +1,53 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _FS_CEPH_CRYPTO_H +#define _FS_CEPH_CRYPTO_H + +#include +#include +#include + +#define CEPH_MAX_KEY_LEN 32 +#define CEPH_MAX_CON_SECRET_LEN 64 + +/* + * cryptographic secret + */ +struct ceph_crypto_key { + int type; + struct ceph_timespec created; + int len; + void *key; + + union { + struct crypto_sync_skcipher *aes_tfm; + struct { + struct hmac_sha256_key hmac_key; + const struct krb5_enctype *krb5_type; + struct crypto_aead *krb5_tfms[3]; + }; + }; +}; + +int ceph_crypto_key_prepare(struct ceph_crypto_key *key, + const u32 *key_usages, int key_usage_cnt); +int ceph_crypto_key_clone(struct ceph_crypto_key *dst, + const struct ceph_crypto_key *src); +int ceph_crypto_key_decode(struct ceph_crypto_key *key, void **p, void *end); +int ceph_crypto_key_unarmor(struct ceph_crypto_key *key, const char *in); +void ceph_crypto_key_destroy(struct ceph_crypto_key *key); + +/* crypto.c */ +int ceph_crypt(const struct ceph_crypto_key *key, int usage_slot, bool encrypt, + void *buf, int buf_len, int in_len, int *pout_len); +int ceph_crypt_data_offset(const struct ceph_crypto_key *key); +int ceph_crypt_buflen(const struct ceph_crypto_key *key, int data_len); +void ceph_hmac_sha256(const struct ceph_crypto_key *key, const void *buf, + int buf_len, u8 hmac[SHA256_DIGEST_SIZE]); +int ceph_crypto_init(void); +void ceph_crypto_shutdown(void); + +/* armor.c */ +int ceph_armor(char *dst, const char *src, const char *end); +int ceph_unarmor(char *dst, const char *src, const char *end); + +#endif -- cgit v1.3.1