Merge tag 'io_uring-7.3-20261002' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linuxgrafted

Pull io_uring fixes from Jens Axboe:

 - Fix a task_work add use-after-free with SQPOLL.

   The sqpoll thread could pop and complete the last request while
   io_req_normal_work_add() was still looking at them after the mpscq
   push.

   Use the same approach as DEFER_TASKRUN to protect from that, holding
   an RCU read lock across the add, and have exit wait for an RCU grace
   period for SQPOLL rings as well.

 - CQE32 ring fixes: correct the free entry check for 32b CQEs, zero the
   big_cqe for aux CQEs, and only post the dummy skip CQE on CQE_MIXED
   rings

 - Mark the source filter table as COW when cloning bpf filters, so
   registering another filter on the source doesn't modify the shared
   table in place

 - Initialize the task context before running the BPF loop

 - Requeue zcrx multishot receives stopped by a local resource

 - End a TX_TIMESTAMP multishot cmd when the CQ is full (lollipopkit)

* tag 'io_uring-7.3-20261002' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
  io_uring: fix task_work add use-after-free with SQPOLL
  io_uring/cmd_net: end TX_TIMESTAMP multishot when the CQ is full
  io_uring/zcrx: requeue multishot receives stopped by a local resource
  io_uring: initialize task context before running the BPF loop
  io_uring: zero big_cqe for aux CQEs on CQE32 rings
  io_uring: fix free entry check for 32b CQEs on CQE32 rings
  io_uring: only post the dummy skip CQE on CQE_MIXED rings
  io_uring/bpf_filter: mark source as COW when cloning filters

1 files changed, 166 insertions, 0 deletions

diff --git a/crypto/sha3.c b/crypto/sha3.c
new file mode 100644
index 000000000..8f364979e
--- /dev/null
+++ b/crypto/sha3.c
@@ -0,0 +1,166 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Crypto API support for SHA-3
+ * (https://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.202.pdf)
+ */
+#include <crypto/internal/hash.h>
+#include <crypto/sha3.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#define SHA3_CTX(desc) ((struct sha3_ctx *)shash_desc_ctx(desc))
+
+static int crypto_sha3_224_init(struct shash_desc *desc)
+{
+	sha3_224_init(SHA3_CTX(desc));
+	return 0;
+}
+
+static int crypto_sha3_256_init(struct shash_desc *desc)
+{
+	sha3_256_init(SHA3_CTX(desc));
+	return 0;
+}
+
+static int crypto_sha3_384_init(struct shash_desc *desc)
+{
+	sha3_384_init(SHA3_CTX(desc));
+	return 0;
+}
+
+static int crypto_sha3_512_init(struct shash_desc *desc)
+{
+	sha3_512_init(SHA3_CTX(desc));
+	return 0;
+}
+
+static int crypto_sha3_update(struct shash_desc *desc, const u8 *data,
+			      unsigned int len)
+{
+	sha3_update(SHA3_CTX(desc), data, len);
+	return 0;
+}
+
+static int crypto_sha3_final(struct shash_desc *desc, u8 *out)
+{
+	sha3_final(SHA3_CTX(desc), out);
+	return 0;
+}
+
+static int crypto_sha3_224_digest(struct shash_desc *desc,
+				  const u8 *data, unsigned int len, u8 *out)
+{
+	sha3_224(data, len, out);
+	return 0;
+}
+
+static int crypto_sha3_256_digest(struct shash_desc *desc,
+				  const u8 *data, unsigned int len, u8 *out)
+{
+	sha3_256(data, len, out);
+	return 0;
+}
+
+static int crypto_sha3_384_digest(struct shash_desc *desc,
+				  const u8 *data, unsigned int len, u8 *out)
+{
+	sha3_384(data, len, out);
+	return 0;
+}
+
+static int crypto_sha3_512_digest(struct shash_desc *desc,
+				  const u8 *data, unsigned int len, u8 *out)
+{
+	sha3_512(data, len, out);
+	return 0;
+}
+
+static int crypto_sha3_export_core(struct shash_desc *desc, void *out)
+{
+	memcpy(out, SHA3_CTX(desc), sizeof(struct sha3_ctx));
+	return 0;
+}
+
+static int crypto_sha3_import_core(struct shash_desc *desc, const void *in)
+{
+	memcpy(SHA3_CTX(desc), in, sizeof(struct sha3_ctx));
+	return 0;
+}
+
+static struct shash_alg algs[] = { {
+	.digestsize		= SHA3_224_DIGEST_SIZE,
+	.init			= crypto_sha3_224_init,
+	.update			= crypto_sha3_update,
+	.final			= crypto_sha3_final,
+	.digest			= crypto_sha3_224_digest,
+	.export_core		= crypto_sha3_export_core,
+	.import_core		= crypto_sha3_import_core,
+	.descsize		= sizeof(struct sha3_ctx),
+	.base.cra_name		= "sha3-224",
+	.base.cra_driver_name	= "sha3-224-lib",
+	.base.cra_blocksize	= SHA3_224_BLOCK_SIZE,
+	.base.cra_module	= THIS_MODULE,
+}, {
+	.digestsize		= SHA3_256_DIGEST_SIZE,
+	.init			= crypto_sha3_256_init,
+	.update			= crypto_sha3_update,
+	.final			= crypto_sha3_final,
+	.digest			= crypto_sha3_256_digest,
+	.export_core		= crypto_sha3_export_core,
+	.import_core		= crypto_sha3_import_core,
+	.descsize		= sizeof(struct sha3_ctx),
+	.base.cra_name		= "sha3-256",
+	.base.cra_driver_name	= "sha3-256-lib",
+	.base.cra_blocksize	= SHA3_256_BLOCK_SIZE,
+	.base.cra_module	= THIS_MODULE,
+}, {
+	.digestsize		= SHA3_384_DIGEST_SIZE,
+	.init			= crypto_sha3_384_init,
+	.update			= crypto_sha3_update,
+	.final			= crypto_sha3_final,
+	.digest			= crypto_sha3_384_digest,
+	.export_core		= crypto_sha3_export_core,
+	.import_core		= crypto_sha3_import_core,
+	.descsize		= sizeof(struct sha3_ctx),
+	.base.cra_name		= "sha3-384",
+	.base.cra_driver_name	= "sha3-384-lib",
+	.base.cra_blocksize	= SHA3_384_BLOCK_SIZE,
+	.base.cra_module	= THIS_MODULE,
+}, {
+	.digestsize		= SHA3_512_DIGEST_SIZE,
+	.init			= crypto_sha3_512_init,
+	.update			= crypto_sha3_update,
+	.final			= crypto_sha3_final,
+	.digest			= crypto_sha3_512_digest,
+	.export_core		= crypto_sha3_export_core,
+	.import_core		= crypto_sha3_import_core,
+	.descsize		= sizeof(struct sha3_ctx),
+	.base.cra_name		= "sha3-512",
+	.base.cra_driver_name	= "sha3-512-lib",
+	.base.cra_blocksize	= SHA3_512_BLOCK_SIZE,
+	.base.cra_module	= THIS_MODULE,
+} };
+
+static int __init crypto_sha3_mod_init(void)
+{
+	return crypto_register_shashes(algs, ARRAY_SIZE(algs));
+}
+module_init(crypto_sha3_mod_init);
+
+static void __exit crypto_sha3_mod_exit(void)
+{
+	crypto_unregister_shashes(algs, ARRAY_SIZE(algs));
+}
+module_exit(crypto_sha3_mod_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Crypto API support for SHA-3");
+
+MODULE_ALIAS_CRYPTO("sha3-224");
+MODULE_ALIAS_CRYPTO("sha3-224-lib");
+MODULE_ALIAS_CRYPTO("sha3-256");
+MODULE_ALIAS_CRYPTO("sha3-256-lib");
+MODULE_ALIAS_CRYPTO("sha3-384");
+MODULE_ALIAS_CRYPTO("sha3-384-lib");
+MODULE_ALIAS_CRYPTO("sha3-512");
+MODULE_ALIAS_CRYPTO("sha3-512-lib");