From 3f1fe48a36b0b6722dc3fd421d93512bac138e9a Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 2 Oct 2026 12:17:24 -0700 Subject: Merge tag 'io_uring-7.3-20261002' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux 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 --- .../features/debug/KASAN/arch-support.txt | 30 ++++++++++++++++++++++ .../debug/debug-vm-pgtable/arch-support.txt | 30 ++++++++++++++++++++++ .../debug/gcov-profile-all/arch-support.txt | 30 ++++++++++++++++++++++ Documentation/features/debug/kcov/arch-support.txt | 30 ++++++++++++++++++++++ Documentation/features/debug/kgdb/arch-support.txt | 30 ++++++++++++++++++++++ .../features/debug/kmemleak/arch-support.txt | 30 ++++++++++++++++++++++ .../debug/kprobes-on-ftrace/arch-support.txt | 30 ++++++++++++++++++++++ .../features/debug/kprobes/arch-support.txt | 30 ++++++++++++++++++++++ .../features/debug/kretprobes/arch-support.txt | 30 ++++++++++++++++++++++ .../features/debug/optprobes/arch-support.txt | 30 ++++++++++++++++++++++ .../features/debug/stackprotector/arch-support.txt | 30 ++++++++++++++++++++++ .../features/debug/uprobes/arch-support.txt | 30 ++++++++++++++++++++++ .../debug/user-ret-profiler/arch-support.txt | 30 ++++++++++++++++++++++ 13 files changed, 390 insertions(+) create mode 100644 Documentation/features/debug/KASAN/arch-support.txt create mode 100644 Documentation/features/debug/debug-vm-pgtable/arch-support.txt create mode 100644 Documentation/features/debug/gcov-profile-all/arch-support.txt create mode 100644 Documentation/features/debug/kcov/arch-support.txt create mode 100644 Documentation/features/debug/kgdb/arch-support.txt create mode 100644 Documentation/features/debug/kmemleak/arch-support.txt create mode 100644 Documentation/features/debug/kprobes-on-ftrace/arch-support.txt create mode 100644 Documentation/features/debug/kprobes/arch-support.txt create mode 100644 Documentation/features/debug/kretprobes/arch-support.txt create mode 100644 Documentation/features/debug/optprobes/arch-support.txt create mode 100644 Documentation/features/debug/stackprotector/arch-support.txt create mode 100644 Documentation/features/debug/uprobes/arch-support.txt create mode 100644 Documentation/features/debug/user-ret-profiler/arch-support.txt (limited to 'Documentation/features/debug') diff --git a/Documentation/features/debug/KASAN/arch-support.txt b/Documentation/features/debug/KASAN/arch-support.txt new file mode 100644 index 000000000..39c6e78c0 --- /dev/null +++ b/Documentation/features/debug/KASAN/arch-support.txt @@ -0,0 +1,30 @@ +# +# Feature name: KASAN +# Kconfig: HAVE_ARCH_KASAN +# description: arch supports the KASAN runtime memory checker +# + ----------------------- + | arch |status| + ----------------------- + | alpha: | TODO | + | arc: | TODO | + | arm: | ok | + | arm64: | ok | + | csky: | TODO | + | hexagon: | TODO | + | loongarch: | ok | + | m68k: | TODO | + | microblaze: | TODO | + | mips: | TODO | + | nios2: | TODO | + | openrisc: | TODO | + | parisc: | TODO | + | powerpc: | ok | + | riscv: | ok | + | s390: | ok | + | sh: | TODO | + | sparc: | TODO | + | um: | ok | + | x86: | ok | + | xtensa: | ok | + ----------------------- diff --git a/Documentation/features/debug/debug-vm-pgtable/arch-support.txt b/Documentation/features/debug/debug-vm-pgtable/arch-support.txt new file mode 100644 index 000000000..156687a74 --- /dev/null +++ b/Documentation/features/debug/debug-vm-pgtable/arch-support.txt @@ -0,0 +1,30 @@ +# +# Feature name: debug-vm-pgtable +# Kconfig: ARCH_HAS_DEBUG_VM_PGTABLE +# description: arch supports pgtable tests for semantics compliance +# + ----------------------- + | arch |status| + ----------------------- + | alpha: | TODO | + | arc: | ok | + | arm: | TODO | + | arm64: | ok | + | csky: | TODO | + | hexagon: | TODO | + | loongarch: | ok | + | m68k: | TODO | + | microblaze: | TODO | + | mips: | TODO | + | nios2: | TODO | + | openrisc: | TODO | + | parisc: | ok | + | powerpc: | ok | + | riscv: | ok | + | s390: | ok | + | sh: | TODO | + | sparc: | TODO | + | um: | TODO | + | x86: | ok | + | xtensa: | ok | + ----------------------- diff --git a/Documentation/features/debug/gcov-profile-all/arch-support.txt b/Documentation/features/debug/gcov-profile-all/arch-support.txt new file mode 100644 index 000000000..63494bddc --- /dev/null +++ b/Documentation/features/debug/gcov-profile-all/arch-support.txt @@ -0,0 +1,30 @@ +# +# Feature name: gcov-profile-all +# Kconfig: ARCH_HAS_GCOV_PROFILE_ALL +# description: arch supports whole-kernel GCOV code coverage profiling +# + ----------------------- + | arch |status| + ----------------------- + | alpha: | TODO | + | arc: | TODO | + | arm: | ok | + | arm64: | ok | + | csky: | ok | + | hexagon: | TODO | + | loongarch: | TODO | + | m68k: | TODO | + | microblaze: | ok | + | mips: | ok | + | nios2: | TODO | + | openrisc: | TODO | + | parisc: | TODO | + | powerpc: | ok | + | riscv: | ok | + | s390: | ok | + | sh: | ok | + | sparc: | TODO | + | um: | ok | + | x86: | ok | + | xtensa: | ok | + ----------------------- diff --git a/Documentation/features/debug/kcov/arch-support.txt b/Documentation/features/debug/kcov/arch-support.txt new file mode 100644 index 000000000..4449e1f55 --- /dev/null +++ b/Documentation/features/debug/kcov/arch-support.txt @@ -0,0 +1,30 @@ +# +# Feature name: kcov +# Kconfig: ARCH_HAS_KCOV +# description: arch supports kcov for coverage-guided fuzzing +# + ----------------------- + | arch |status| + ----------------------- + | alpha: | TODO | + | arc: | TODO | + | arm: | ok | + | arm64: | ok | + | csky: | TODO | + | hexagon: | TODO | + | loongarch: | ok | + | m68k: | TODO | + | microblaze: | TODO | + | mips: | ok | + | nios2: | TODO | + | openrisc: | TODO | + | parisc: | TODO | + | powerpc: | ok | + | riscv: | ok | + | s390: | ok | + | sh: | TODO | + | sparc: | TODO | + | um: | ok | + | x86: | ok | + | xtensa: | ok | + ----------------------- diff --git a/Documentation/features/debug/kgdb/arch-support.txt b/Documentation/features/debug/kgdb/arch-support.txt new file mode 100644 index 000000000..f287f16ce --- /dev/null +++ b/Documentation/features/debug/kgdb/arch-support.txt @@ -0,0 +1,30 @@ +# +# Feature name: kgdb +# Kconfig: HAVE_ARCH_KGDB +# description: arch supports the kGDB kernel debugger +# + ----------------------- + | arch |status| + ----------------------- + | alpha: | TODO | + | arc: | ok | + | arm: | ok | + | arm64: | ok | + | csky: | TODO | + | hexagon: | ok | + | loongarch: | ok | + | m68k: | TODO | + | microblaze: | ok | + | mips: | ok | + | nios2: | ok | + | openrisc: | TODO | + | parisc: | ok | + | powerpc: | ok | + | riscv: | ok | + | s390: | TODO | + | sh: | ok | + | sparc: | ok | + | um: | TODO | + | x86: | ok | + | xtensa: | TODO | + ----------------------- diff --git a/Documentation/features/debug/kmemleak/arch-support.txt b/Documentation/features/debug/kmemleak/arch-support.txt new file mode 100644 index 000000000..f45149cfa --- /dev/null +++ b/Documentation/features/debug/kmemleak/arch-support.txt @@ -0,0 +1,30 @@ +# +# Feature name: kmemleak +# Kconfig: HAVE_DEBUG_KMEMLEAK +# description: arch supports the kernel memory leak detector +# + ----------------------- + | arch |status| + ----------------------- + | alpha: | TODO | + | arc: | ok | + | arm: | ok | + | arm64: | ok | + | csky: | ok | + | hexagon: | TODO | + | loongarch: | ok | + | m68k: | TODO | + | microblaze: | ok | + | mips: | ok | + | nios2: | TODO | + | openrisc: | TODO | + | parisc: | TODO | + | powerpc: | ok | + | riscv: | ok | + | s390: | ok | + | sh: | ok | + | sparc: | ok | + | um: | ok | + | x86: | ok | + | xtensa: | ok | + ----------------------- diff --git a/Documentation/features/debug/kprobes-on-ftrace/arch-support.txt b/Documentation/features/debug/kprobes-on-ftrace/arch-support.txt new file mode 100644 index 000000000..d937b7a03 --- /dev/null +++ b/Documentation/features/debug/kprobes-on-ftrace/arch-support.txt @@ -0,0 +1,30 @@ +# +# Feature name: kprobes-on-ftrace +# Kconfig: HAVE_KPROBES_ON_FTRACE +# description: arch supports combined kprobes and ftrace live patching +# + ----------------------- + | arch |status| + ----------------------- + | alpha: | TODO | + | arc: | TODO | + | arm: | TODO | + | arm64: | TODO | + | csky: | ok | + | hexagon: | TODO | + | loongarch: | ok | + | m68k: | TODO | + | microblaze: | TODO | + | mips: | TODO | + | nios2: | TODO | + | openrisc: | TODO | + | parisc: | ok | + | powerpc: | ok | + | riscv: | TODO | + | s390: | ok | + | sh: | TODO | + | sparc: | TODO | + | um: | TODO | + | x86: | ok | + | xtensa: | TODO | + ----------------------- diff --git a/Documentation/features/debug/kprobes/arch-support.txt b/Documentation/features/debug/kprobes/arch-support.txt new file mode 100644 index 000000000..1ea27aedd --- /dev/null +++ b/Documentation/features/debug/kprobes/arch-support.txt @@ -0,0 +1,30 @@ +# +# Feature name: kprobes +# Kconfig: HAVE_KPROBES +# description: arch supports live patched kernel probe +# + ----------------------- + | arch |status| + ----------------------- + | alpha: | TODO | + | arc: | ok | + | arm: | ok | + | arm64: | ok | + | csky: | ok | + | hexagon: | TODO | + | loongarch: | ok | + | m68k: | TODO | + | microblaze: | TODO | + | mips: | ok | + | nios2: | TODO | + | openrisc: | TODO | + | parisc: | ok | + | powerpc: | ok | + | riscv: | ok | + | s390: | ok | + | sh: | ok | + | sparc: | ok | + | um: | TODO | + | x86: | ok | + | xtensa: | TODO | + ----------------------- diff --git a/Documentation/features/debug/kretprobes/arch-support.txt b/Documentation/features/debug/kretprobes/arch-support.txt new file mode 100644 index 000000000..022be42e6 --- /dev/null +++ b/Documentation/features/debug/kretprobes/arch-support.txt @@ -0,0 +1,30 @@ +# +# Feature name: kretprobes +# Kconfig: HAVE_KRETPROBES +# description: arch supports kernel function-return probes +# + ----------------------- + | arch |status| + ----------------------- + | alpha: | TODO | + | arc: | ok | + | arm: | ok | + | arm64: | ok | + | csky: | ok | + | hexagon: | TODO | + | loongarch: | ok | + | m68k: | TODO | + | microblaze: | TODO | + | mips: | ok | + | nios2: | TODO | + | openrisc: | TODO | + | parisc: | ok | + | powerpc: | ok | + | riscv: | ok | + | s390: | ok | + | sh: | ok | + | sparc: | ok | + | um: | TODO | + | x86: | ok | + | xtensa: | TODO | + ----------------------- diff --git a/Documentation/features/debug/optprobes/arch-support.txt b/Documentation/features/debug/optprobes/arch-support.txt new file mode 100644 index 000000000..92f5d0f44 --- /dev/null +++ b/Documentation/features/debug/optprobes/arch-support.txt @@ -0,0 +1,30 @@ +# +# Feature name: optprobes +# Kconfig: HAVE_OPTPROBES +# description: arch supports live patched optprobes +# + ----------------------- + | arch |status| + ----------------------- + | alpha: | TODO | + | arc: | TODO | + | arm: | ok | + | arm64: | TODO | + | csky: | TODO | + | hexagon: | TODO | + | loongarch: | TODO | + | m68k: | TODO | + | microblaze: | TODO | + | mips: | TODO | + | nios2: | TODO | + | openrisc: | TODO | + | parisc: | TODO | + | powerpc: | ok | + | riscv: | TODO | + | s390: | TODO | + | sh: | TODO | + | sparc: | TODO | + | um: | TODO | + | x86: | ok | + | xtensa: | TODO | + ----------------------- diff --git a/Documentation/features/debug/stackprotector/arch-support.txt b/Documentation/features/debug/stackprotector/arch-support.txt new file mode 100644 index 000000000..43e49c716 --- /dev/null +++ b/Documentation/features/debug/stackprotector/arch-support.txt @@ -0,0 +1,30 @@ +# +# Feature name: stackprotector +# Kconfig: HAVE_STACKPROTECTOR +# description: arch supports compiler driven stack overflow protection +# + ----------------------- + | arch |status| + ----------------------- + | alpha: | TODO | + | arc: | TODO | + | arm: | ok | + | arm64: | ok | + | csky: | ok | + | hexagon: | TODO | + | loongarch: | ok | + | m68k: | TODO | + | microblaze: | TODO | + | mips: | ok | + | nios2: | TODO | + | openrisc: | TODO | + | parisc: | TODO | + | powerpc: | ok | + | riscv: | ok | + | s390: | ok | + | sh: | ok | + | sparc: | TODO | + | um: | TODO | + | x86: | ok | + | xtensa: | ok | + ----------------------- diff --git a/Documentation/features/debug/uprobes/arch-support.txt b/Documentation/features/debug/uprobes/arch-support.txt new file mode 100644 index 000000000..0c698003c --- /dev/null +++ b/Documentation/features/debug/uprobes/arch-support.txt @@ -0,0 +1,30 @@ +# +# Feature name: uprobes +# Kconfig: ARCH_SUPPORTS_UPROBES +# description: arch supports live patched user probes +# + ----------------------- + | arch |status| + ----------------------- + | alpha: | TODO | + | arc: | TODO | + | arm: | ok | + | arm64: | ok | + | csky: | ok | + | hexagon: | TODO | + | loongarch: | ok | + | m68k: | TODO | + | microblaze: | TODO | + | mips: | ok | + | nios2: | TODO | + | openrisc: | TODO | + | parisc: | TODO | + | powerpc: | ok | + | riscv: | ok | + | s390: | ok | + | sh: | TODO | + | sparc: | ok | + | um: | TODO | + | x86: | ok | + | xtensa: | TODO | + ----------------------- diff --git a/Documentation/features/debug/user-ret-profiler/arch-support.txt b/Documentation/features/debug/user-ret-profiler/arch-support.txt new file mode 100644 index 000000000..3e4317675 --- /dev/null +++ b/Documentation/features/debug/user-ret-profiler/arch-support.txt @@ -0,0 +1,30 @@ +# +# Feature name: user-ret-profiler +# Kconfig: HAVE_USER_RETURN_NOTIFIER +# description: arch supports user-space return from system call profiler +# + ----------------------- + | arch |status| + ----------------------- + | alpha: | TODO | + | arc: | TODO | + | arm: | TODO | + | arm64: | TODO | + | csky: | TODO | + | hexagon: | TODO | + | loongarch: | TODO | + | m68k: | TODO | + | microblaze: | TODO | + | mips: | TODO | + | nios2: | TODO | + | openrisc: | TODO | + | parisc: | TODO | + | powerpc: | TODO | + | riscv: | TODO | + | s390: | TODO | + | sh: | TODO | + | sparc: | TODO | + | um: | TODO | + | x86: | ok | + | xtensa: | TODO | + ----------------------- -- cgit v1.3.1