mirror of
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synced 2026-09-18 22:19:30 +02:00
Linus Torvalds
2f0c1cf72f
Pull s390 fixes from Vasily Gorbik: - Fix NULL pointer dereferences in s390dbf when setting debug levels or resizing debug areas while logging events. Remove duplicate messages about kernel parameter overrides - Fix PAI perf crashes when per task events move to newly onlined CPUs. Add CPU hotplug callbacks to allocate and free the per-CPU data - Fix mutex use in atomic context in AES and PAES CTR code by using semaphore trylocks instead. Remove conditional locking and enable Clang CONTEXT_ANALYSIS for the crypto code - Fix scatterlist walk error handling in AES and PAES and avoid freeing PAES walk resources twice - Fix missing scrubbing of temporary AES and PAES buffers, including AES GCM error paths - Set missing CRYPTO_ALG_ASYNC and CRYPTO_ALG_NO_FALLBACK flags for PAES - Fix -EBUSY handling in PAES and PHMAC to avoid cleaning up requests already queued to the crypto engine - Fix PAES and PHMAC requests being completed twice on errors - Fix PAES and PHMAC hangs when key conversion keeps returning -EBUSY by returning -EIO after the last retry * tag 's390-7.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/crypto: Enable CONTEXT_ANALYSIS s390/crypto: Map EBUSY to EIO when key conversion fails repeatedly s390/crypto: Fix wrong return code to engine in asynch callbacks s390/crypto: Fix handling of EBUSY in PHMAC when req is pushed to crypto engine s390/crypto: Fix handling of EBUSY in PAES when req is pushed to crypto engine s390/crypto: Fix missing cra_flags in paes_s390 s390/crypto: Fix use of mutex in atomic context in PAES s390/crypto: Fix missing scrub of temp buffers with PAES algorithm s390/crypto: Fix return code handling at skcipher_walk_done in PAES algorithms s390/crypto: Fix use of mutex in atomic context s390/crypto: Fix missing scrub of temp buffers with AES ctr and gcm algorithm s390/crypto: Fix skcipher_walk return code handling in aes_s390 s390/debug: Fix race between debug area resize and event logging s390/debug: Do not repeat parameter override notice on debug_set_level() s390/debug: Fix NULL pointer dereference in debug_set_level() s390/pai: Support CPU hotplug for PMU PAI s390/pai: Move locking to event init and delete s390/pai: Use PAI PMU index as parameter replacing event
Linux kernel ============ The Linux kernel is the core of any Linux operating system. It manages hardware, system resources, and provides the fundamental services for all other software. Quick Start ----------- * Report a bug: See Documentation/admin-guide/reporting-issues.rst * Get the latest kernel: https://kernel.org * Build the kernel: See Documentation/admin-guide/quickly-build-trimmed-linux.rst * Join the community: https://lore.kernel.org/ Essential Documentation ----------------------- All users should be familiar with: * Building requirements: Documentation/process/changes.rst * Code of Conduct: Documentation/process/code-of-conduct.rst * License: See COPYING Documentation can be built with make htmldocs or viewed online at: https://www.kernel.org/doc/html/latest/ Who Are You? ============ Find your role below: * New Kernel Developer: Getting started with kernel development * Academic Researcher: Studying kernel internals and architecture * Security Expert: Hardening and vulnerability analysis * Backport/Maintenance Engineer: Maintaining stable kernels * System Administrator: Configuring and troubleshooting * Maintainer: Leading subsystems and reviewing patches * Hardware Vendor: Writing drivers for new hardware * Distribution Maintainer: Packaging kernels for distros * AI Coding Assistant: LLMs and AI-powered development tools For Specific Users ================== New Kernel Developer -------------------- Welcome! Start your kernel development journey here: * Getting Started: Documentation/process/development-process.rst * Your First Patch: Documentation/process/submitting-patches.rst * Coding Style: Documentation/process/coding-style.rst * Build System: Documentation/kbuild/index.rst * Development Tools: Documentation/dev-tools/index.rst * Kernel Hacking Guide: Documentation/kernel-hacking/hacking.rst * Core APIs: Documentation/core-api/index.rst Academic Researcher ------------------- Explore the kernel's architecture and internals: * Researcher Guidelines: Documentation/process/researcher-guidelines.rst * Memory Management: Documentation/mm/index.rst * Scheduler: Documentation/scheduler/index.rst * Networking Stack: Documentation/networking/index.rst * Filesystems: Documentation/filesystems/index.rst * RCU (Read-Copy Update): Documentation/RCU/index.rst * Locking Primitives: Documentation/locking/index.rst * Power Management: Documentation/power/index.rst Security Expert --------------- Security documentation and hardening guides: * Security Documentation: Documentation/security/index.rst * LSM Development: Documentation/security/lsm-development.rst * Self Protection: Documentation/security/self-protection.rst * Reporting Vulnerabilities: Documentation/process/security-bugs.rst * CVE Procedures: Documentation/process/cve.rst * Embargoed Hardware Issues: Documentation/process/embargoed-hardware-issues.rst * Security Features: Documentation/userspace-api/seccomp_filter.rst Backport/Maintenance Engineer ----------------------------- Maintain and stabilize kernel versions: * Stable Kernel Rules: Documentation/process/stable-kernel-rules.rst * Backporting Guide: Documentation/process/backporting.rst * Applying Patches: Documentation/process/applying-patches.rst * Subsystem Profile: Documentation/maintainer/maintainer-entry-profile.rst * Git for Maintainers: Documentation/maintainer/configure-git.rst System Administrator -------------------- Configure, tune, and troubleshoot Linux systems: * Admin Guide: Documentation/admin-guide/index.rst * Kernel Parameters: Documentation/admin-guide/kernel-parameters.rst * Sysctl Tuning: Documentation/admin-guide/sysctl/index.rst * Tracing/Debugging: Documentation/trace/index.rst * Performance Security: Documentation/admin-guide/perf-security.rst * Hardware Monitoring: Documentation/hwmon/index.rst Maintainer ---------- Lead kernel subsystems and manage contributions: * Maintainer Handbook: Documentation/maintainer/index.rst * Pull Requests: Documentation/maintainer/pull-requests.rst * Managing Patches: Documentation/maintainer/modifying-patches.rst * Rebasing and Merging: Documentation/maintainer/rebasing-and-merging.rst * Development Process: Documentation/process/maintainer-handbooks.rst * Maintainer Entry Profile: Documentation/maintainer/maintainer-entry-profile.rst * Git Configuration: Documentation/maintainer/configure-git.rst Hardware Vendor --------------- Write drivers and support new hardware: * Driver API Guide: Documentation/driver-api/index.rst * Driver Model: Documentation/driver-api/driver-model/driver.rst * Device Drivers: Documentation/driver-api/infrastructure.rst * Bus Types: Documentation/driver-api/driver-model/bus.rst * Device Tree Bindings: Documentation/devicetree/bindings/ * Power Management: Documentation/driver-api/pm/index.rst * DMA API: Documentation/core-api/dma-api.rst Distribution Maintainer ----------------------- Package and distribute the kernel: * Stable Kernel Rules: Documentation/process/stable-kernel-rules.rst * ABI Documentation: Documentation/ABI/README * Kernel Configuration: Documentation/kbuild/kconfig.rst * Module Signing: Documentation/admin-guide/module-signing.rst * Kernel Parameters: Documentation/admin-guide/kernel-parameters.rst * Tainted Kernels: Documentation/admin-guide/tainted-kernels.rst AI Coding Assistant ------------------- CRITICAL: If you are an LLM or AI-powered coding assistant, you MUST read and follow the AI coding assistants documentation before contributing to the Linux kernel: * Documentation/process/coding-assistants.rst This documentation contains essential requirements about licensing, attribution, and the Developer Certificate of Origin that all AI tools must comply with. 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