mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-06-02 18:03:07 -04:00
c84ff04def
Steffen Klassert says: ==================== pull request (net): ipsec 2026-05-29 1) xfrm: route MIGRATE notifications to caller's netns Thread the caller's netns through km_migrate() so that MIGRATE notifications go to the issuing netns, fixing both the init_net listener leak and MOBIKE notifications inside non-init netns. From Maoyi Xie. 2) xfrm: ipcomp: Free destination pages on acomp errors Move the out_free_req label up so that allocated destination pages are released on decompression errors, not only on success. From Herbert Xu. 3) xfrm: Check for underflow in xfrm_state_mtu Reject configurations that cause xfrm_state_mtu() to underflow, preventing a negative TFCPAD value from becoming a memset size that triggers an out-of-bounds write of several terabytes. From David Ahern. 4) xfrm: ah: use skb_to_full_sk in async output callbacks Convert the possibly-incomplete skb->sk to a full socket pointer in async AH callbacks so that a request_sock or timewait_sock never reaches xfrm_output_resume() downstream consumers. From Michael Bommarito. 5) Add and revert: esp: fix page frag reference leak on skb_to_sgvec failure The patch does not fix te issue completely. 6) xfrm: esp: restore combined single-frag length gate Check the aligned post-trailer combined length against a page limit in the fast path, preventing skb_page_frag_refill() from falling back to a page too small for the destination scatterlist. From Jingguo Tan. 7) xfrm: iptfs: reset runtime state when cloning SAs Reinitialise the clone's mode_data runtime objects before publishing it, preventing queued skbs from being freed with list state copied from the original SA when migration fails. From Shaomin Chen. 8) xfrm: move policy_bydst RCU sync from per-netns .exit to .pre_exit Flush policy tables and drain the workqueue in a .pre_exit handler so that cleanup_net() pays one RCU grace period per batch instead of one per namespace, fixing stalls at high CLONE_NEWNET rates. From Usama Arif. 9) xfrm: input: hold netns during deferred transport reinjection Take a netns reference when queueing deferred transport reinjection work and drop it after the callback completes, keeping the skb->cb net pointer valid until the deferred work runs. From Zhengchuan Liang. * tag 'ipsec-2026-05-29' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec: Revert "esp: fix page frag reference leak on skb_to_sgvec failure" xfrm: input: hold netns during deferred transport reinjection xfrm: move policy_bydst RCU sync from per-netns .exit to .pre_exit xfrm: iptfs: reset runtime state when cloning SAs xfrm: esp: restore combined single-frag length gate esp: fix page frag reference leak on skb_to_sgvec failure xfrm: ah: use skb_to_full_sk in async output callbacks xfrm: Check for underflow in xfrm_state_mtu xfrm: ipcomp: Free destination pages on acomp errors xfrm: route MIGRATE notifications to caller's netns ==================== Link: https://patch.msgid.link/20260529092648.3878973-1-steffen.klassert@secunet.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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. Communication and Support ========================= * Mailing Lists: https://lore.kernel.org/ * IRC: #kernelnewbies on irc.oftc.net * Bugzilla: https://bugzilla.kernel.org/ * MAINTAINERS file: Lists subsystem maintainers and mailing lists * Email Clients: Documentation/process/email-clients.rst