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From: Andrew Morton <akpm@linux-foundation.org>
To: akpm@linux-foundation.org, dvyukov@google.com, elver@google.com,
	glider@google.com, jannh@google.com, linux-mm@kvack.org,
	mark.rutland@arm.com, mm-commits@vger.kernel.org,
	torvalds@linux-foundation.org
Subject: [patch 059/118] kfence: use pt_regs to generate stack trace on faults
Date: Thu, 25 Feb 2021 17:19:08 -0800
Message-ID: <20210226011908.sduPPjrs1%akpm@linux-foundation.org> (raw)
In-Reply-To: <20210225171452.713967e96554bb6a53e44a19@linux-foundation.org>

From: Marco Elver <elver@google.com>
Subject: kfence: use pt_regs to generate stack trace on faults

Instead of removing the fault handling portion of the stack trace based on
the fault handler's name, just use struct pt_regs directly.

Change kfence_handle_page_fault() to take a struct pt_regs, and plumb it
through to kfence_report_error() for out-of-bounds, use-after-free, or
invalid access errors, where pt_regs is used to generate the stack trace.

If the kernel is a DEBUG_KERNEL, also show registers for more information.

Link: https://lkml.kernel.org/r/20201105092133.2075331-1-elver@google.com
Signed-off-by: Marco Elver <elver@google.com>
Suggested-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Jann Horn <jannh@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/arm64/include/asm/kfence.h |    2 
 arch/arm64/mm/fault.c           |    2 
 arch/x86/include/asm/kfence.h   |    6 --
 arch/x86/mm/fault.c             |    2 
 include/linux/kfence.h          |    5 +-
 mm/kfence/core.c                |   10 ++--
 mm/kfence/kfence.h              |    4 -
 mm/kfence/report.c              |   63 +++++++++++++++++-------------
 8 files changed, 48 insertions(+), 46 deletions(-)

--- a/arch/arm64/include/asm/kfence.h~kfence-use-pt_regs-to-generate-stack-trace-on-faults
+++ a/arch/arm64/include/asm/kfence.h
@@ -10,8 +10,6 @@
 
 #include <asm/cacheflush.h>
 
-#define KFENCE_SKIP_ARCH_FAULT_HANDLER "el1_sync"
-
 static inline bool arch_kfence_init_pool(void) { return true; }
 
 static inline bool kfence_protect_page(unsigned long addr, bool protect)
--- a/arch/arm64/mm/fault.c~kfence-use-pt_regs-to-generate-stack-trace-on-faults
+++ a/arch/arm64/mm/fault.c
@@ -390,7 +390,7 @@ static void __do_kernel_fault(unsigned l
 	} else if (addr < PAGE_SIZE) {
 		msg = "NULL pointer dereference";
 	} else {
-		if (kfence_handle_page_fault(addr))
+		if (kfence_handle_page_fault(addr, regs))
 			return;
 
 		msg = "paging request";
--- a/arch/x86/include/asm/kfence.h~kfence-use-pt_regs-to-generate-stack-trace-on-faults
+++ a/arch/x86/include/asm/kfence.h
@@ -16,12 +16,6 @@
 #include <asm/set_memory.h>
 #include <asm/tlbflush.h>
 
-/*
- * The page fault handler entry function, up to which the stack trace is
- * truncated in reports.
- */
-#define KFENCE_SKIP_ARCH_FAULT_HANDLER "asm_exc_page_fault"
-
 /* Force 4K pages for __kfence_pool. */
 static inline bool arch_kfence_init_pool(void)
 {
--- a/arch/x86/mm/fault.c~kfence-use-pt_regs-to-generate-stack-trace-on-faults
+++ a/arch/x86/mm/fault.c
@@ -682,7 +682,7 @@ page_fault_oops(struct pt_regs *regs, un
 		efi_crash_gracefully_on_page_fault(address);
 
 	/* Only not-present faults should be handled by KFENCE. */
-	if (!(error_code & X86_PF_PROT) && kfence_handle_page_fault(address))
+	if (!(error_code & X86_PF_PROT) && kfence_handle_page_fault(address, regs))
 		return;
 
 oops:
--- a/include/linux/kfence.h~kfence-use-pt_regs-to-generate-stack-trace-on-faults
+++ a/include/linux/kfence.h
@@ -186,6 +186,7 @@ static __always_inline __must_check bool
 /**
  * kfence_handle_page_fault() - perform page fault handling for KFENCE pages
  * @addr: faulting address
+ * @regs: current struct pt_regs (can be NULL, but shows full stack trace)
  *
  * Return:
  * * false - address outside KFENCE pool,
@@ -196,7 +197,7 @@ static __always_inline __must_check bool
  * cases KFENCE prints an error message and marks the offending page as
  * present, so that the kernel can proceed.
  */
-bool __must_check kfence_handle_page_fault(unsigned long addr);
+bool __must_check kfence_handle_page_fault(unsigned long addr, struct pt_regs *regs);
 
 #else /* CONFIG_KFENCE */
 
@@ -209,7 +210,7 @@ static inline size_t kfence_ksize(const
 static inline void *kfence_object_start(const void *addr) { return NULL; }
 static inline void __kfence_free(void *addr) { }
 static inline bool __must_check kfence_free(void *addr) { return false; }
-static inline bool __must_check kfence_handle_page_fault(unsigned long addr) { return false; }
+static inline bool __must_check kfence_handle_page_fault(unsigned long addr, struct pt_regs *regs) { return false; }
 
 #endif
 
--- a/mm/kfence/core.c~kfence-use-pt_regs-to-generate-stack-trace-on-faults
+++ a/mm/kfence/core.c
@@ -216,7 +216,7 @@ static inline bool check_canary_byte(u8
 		return true;
 
 	atomic_long_inc(&counters[KFENCE_COUNTER_BUGS]);
-	kfence_report_error((unsigned long)addr, addr_to_metadata((unsigned long)addr),
+	kfence_report_error((unsigned long)addr, NULL, addr_to_metadata((unsigned long)addr),
 			    KFENCE_ERROR_CORRUPTION);
 	return false;
 }
@@ -351,7 +351,7 @@ static void kfence_guarded_free(void *ad
 	if (meta->state != KFENCE_OBJECT_ALLOCATED || meta->addr != (unsigned long)addr) {
 		/* Invalid or double-free, bail out. */
 		atomic_long_inc(&counters[KFENCE_COUNTER_BUGS]);
-		kfence_report_error((unsigned long)addr, meta, KFENCE_ERROR_INVALID_FREE);
+		kfence_report_error((unsigned long)addr, NULL, meta, KFENCE_ERROR_INVALID_FREE);
 		raw_spin_unlock_irqrestore(&meta->lock, flags);
 		return;
 	}
@@ -766,7 +766,7 @@ void __kfence_free(void *addr)
 		kfence_guarded_free(addr, meta, false);
 }
 
-bool kfence_handle_page_fault(unsigned long addr)
+bool kfence_handle_page_fault(unsigned long addr, struct pt_regs *regs)
 {
 	const int page_index = (addr - (unsigned long)__kfence_pool) / PAGE_SIZE;
 	struct kfence_metadata *to_report = NULL;
@@ -829,11 +829,11 @@ bool kfence_handle_page_fault(unsigned l
 
 out:
 	if (to_report) {
-		kfence_report_error(addr, to_report, error_type);
+		kfence_report_error(addr, regs, to_report, error_type);
 		raw_spin_unlock_irqrestore(&to_report->lock, flags);
 	} else {
 		/* This may be a UAF or OOB access, but we can't be sure. */
-		kfence_report_error(addr, NULL, KFENCE_ERROR_INVALID);
+		kfence_report_error(addr, regs, NULL, KFENCE_ERROR_INVALID);
 	}
 
 	return kfence_unprotect(addr); /* Unprotect and let access proceed. */
--- a/mm/kfence/kfence.h~kfence-use-pt_regs-to-generate-stack-trace-on-faults
+++ a/mm/kfence/kfence.h
@@ -105,8 +105,8 @@ enum kfence_error_type {
 	KFENCE_ERROR_INVALID_FREE,	/* Invalid free. */
 };
 
-void kfence_report_error(unsigned long address, const struct kfence_metadata *meta,
-			 enum kfence_error_type type);
+void kfence_report_error(unsigned long address, struct pt_regs *regs,
+			 const struct kfence_metadata *meta, enum kfence_error_type type);
 
 void kfence_print_object(struct seq_file *seq, const struct kfence_metadata *meta);
 
--- a/mm/kfence/report.c~kfence-use-pt_regs-to-generate-stack-trace-on-faults
+++ a/mm/kfence/report.c
@@ -10,6 +10,7 @@
 #include <linux/kernel.h>
 #include <linux/lockdep.h>
 #include <linux/printk.h>
+#include <linux/sched/debug.h>
 #include <linux/seq_file.h>
 #include <linux/stacktrace.h>
 #include <linux/string.h>
@@ -41,7 +42,6 @@ static int get_stack_skipnr(const unsign
 {
 	char buf[64];
 	int skipnr, fallback = 0;
-	bool is_access_fault = false;
 
 	if (type) {
 		/* Depending on error type, find different stack entries. */
@@ -49,8 +49,12 @@ static int get_stack_skipnr(const unsign
 		case KFENCE_ERROR_UAF:
 		case KFENCE_ERROR_OOB:
 		case KFENCE_ERROR_INVALID:
-			is_access_fault = true;
-			break;
+			/*
+			 * kfence_handle_page_fault() may be called with pt_regs
+			 * set to NULL; in that case we'll simply show the full
+			 * stack trace.
+			 */
+			return 0;
 		case KFENCE_ERROR_CORRUPTION:
 		case KFENCE_ERROR_INVALID_FREE:
 			break;
@@ -60,26 +64,21 @@ static int get_stack_skipnr(const unsign
 	for (skipnr = 0; skipnr < num_entries; skipnr++) {
 		int len = scnprintf(buf, sizeof(buf), "%ps", (void *)stack_entries[skipnr]);
 
-		if (is_access_fault) {
-			if (!strncmp(buf, KFENCE_SKIP_ARCH_FAULT_HANDLER, len))
-				goto found;
-		} else {
-			if (str_has_prefix(buf, "kfence_") || str_has_prefix(buf, "__kfence_") ||
-			    !strncmp(buf, "__slab_free", len)) {
-				/*
-				 * In case of tail calls from any of the below
-				 * to any of the above.
-				 */
-				fallback = skipnr + 1;
-			}
-
-			/* Also the *_bulk() variants by only checking prefixes. */
-			if (str_has_prefix(buf, "kfree") ||
-			    str_has_prefix(buf, "kmem_cache_free") ||
-			    str_has_prefix(buf, "__kmalloc") ||
-			    str_has_prefix(buf, "kmem_cache_alloc"))
-				goto found;
+		if (str_has_prefix(buf, "kfence_") || str_has_prefix(buf, "__kfence_") ||
+		    !strncmp(buf, "__slab_free", len)) {
+			/*
+			 * In case of tail calls from any of the below
+			 * to any of the above.
+			 */
+			fallback = skipnr + 1;
 		}
+
+		/* Also the *_bulk() variants by only checking prefixes. */
+		if (str_has_prefix(buf, "kfree") ||
+		    str_has_prefix(buf, "kmem_cache_free") ||
+		    str_has_prefix(buf, "__kmalloc") ||
+		    str_has_prefix(buf, "kmem_cache_alloc"))
+			goto found;
 	}
 	if (fallback < num_entries)
 		return fallback;
@@ -157,13 +156,20 @@ static void print_diff_canary(unsigned l
 	pr_cont(" ]");
 }
 
-void kfence_report_error(unsigned long address, const struct kfence_metadata *meta,
-			 enum kfence_error_type type)
+void kfence_report_error(unsigned long address, struct pt_regs *regs,
+			 const struct kfence_metadata *meta, enum kfence_error_type type)
 {
 	unsigned long stack_entries[KFENCE_STACK_DEPTH] = { 0 };
-	int num_stack_entries = stack_trace_save(stack_entries, KFENCE_STACK_DEPTH, 1);
-	int skipnr = get_stack_skipnr(stack_entries, num_stack_entries, &type);
 	const ptrdiff_t object_index = meta ? meta - kfence_metadata : -1;
+	int num_stack_entries;
+	int skipnr = 0;
+
+	if (regs) {
+		num_stack_entries = stack_trace_save_regs(regs, stack_entries, KFENCE_STACK_DEPTH, 0);
+	} else {
+		num_stack_entries = stack_trace_save(stack_entries, KFENCE_STACK_DEPTH, 1);
+		skipnr = get_stack_skipnr(stack_entries, num_stack_entries, &type);
+	}
 
 	/* Require non-NULL meta, except if KFENCE_ERROR_INVALID. */
 	if (WARN_ON(type != KFENCE_ERROR_INVALID && !meta))
@@ -227,7 +233,10 @@ void kfence_report_error(unsigned long a
 
 	/* Print report footer. */
 	pr_err("\n");
-	dump_stack_print_info(KERN_ERR);
+	if (IS_ENABLED(CONFIG_DEBUG_KERNEL) && regs)
+		show_regs(regs);
+	else
+		dump_stack_print_info(KERN_ERR);
 	pr_err("==================================================================\n");
 
 	lockdep_on();
_


  parent reply index

Thread overview: 123+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-26  1:14 incoming Andrew Morton
2021-02-26  1:15 ` [patch 001/118] mm: make pagecache tagged lookups return only head pages Andrew Morton
2021-02-26  1:15 ` [patch 002/118] mm/shmem: use pagevec_lookup in shmem_unlock_mapping Andrew Morton
2021-02-26  1:15 ` [patch 003/118] mm/swap: optimise get_shadow_from_swap_cache Andrew Morton
2021-02-26  1:15 ` [patch 004/118] mm: add FGP_ENTRY Andrew Morton
2021-02-26  1:15 ` [patch 005/118] mm/filemap: rename find_get_entry to mapping_get_entry Andrew Morton
2021-02-26  1:15 ` [patch 006/118] mm/filemap: add helper for finding pages Andrew Morton
2021-02-26  1:15 ` [patch 007/118] mm/filemap: add mapping_seek_hole_data Andrew Morton
2021-02-26  1:15 ` [patch 008/118] iomap: use mapping_seek_hole_data Andrew Morton
2021-02-26  1:15 ` [patch 009/118] mm: add and use find_lock_entries Andrew Morton
2021-02-26  1:16 ` [patch 010/118] mm: add an 'end' parameter to find_get_entries Andrew Morton
2021-02-26  1:16 ` [patch 011/118] mm: add an 'end' parameter to pagevec_lookup_entries Andrew Morton
2021-02-26  1:16 ` [patch 012/118] mm: remove nr_entries parameter from pagevec_lookup_entries Andrew Morton
2021-02-26  1:16 ` [patch 013/118] mm: pass pvec directly to find_get_entries Andrew Morton
2021-02-26  1:16 ` [patch 014/118] mm: remove pagevec_lookup_entries Andrew Morton
2021-02-26  1:16 ` [patch 015/118] mm,thp,shmem: limit shmem THP alloc gfp_mask Andrew Morton
2021-02-26  1:16 ` [patch 016/118] mm,thp,shm: limit gfp mask to no more than specified Andrew Morton
2021-02-26  1:16 ` [patch 017/118] mm,thp,shmem: make khugepaged obey tmpfs mount flags Andrew Morton
2021-02-26  1:16 ` [patch 018/118] mm,shmem,thp: limit shmem THP allocations to requested zones Andrew Morton
2021-02-26  1:16 ` [patch 019/118] mm: cma: allocate cma areas bottom-up Andrew Morton
2021-02-26  1:16 ` [patch 020/118] mm/cma: expose all pages to the buddy if activation of an area fails Andrew Morton
2021-02-26  1:16 ` [patch 021/118] mm/page_alloc: count CMA pages per zone and print them in /proc/zoneinfo Andrew Morton
2021-02-26  1:16 ` [patch 022/118] mm: cma: print region name on failure Andrew Morton
2021-02-26  1:16 ` [patch 023/118] mm: vmstat: fix NOHZ wakeups for node stat changes Andrew Morton
2021-02-26  1:16 ` [patch 024/118] mm: vmstat: add some comments on internal storage of byte items Andrew Morton
2021-02-26  1:16 ` [patch 025/118] mm/vmstat.c: erase latency in vmstat_shepherd Andrew Morton
2021-02-26  1:16 ` [patch 026/118] mm: move pfn_to_online_page() out of line Andrew Morton
2021-02-26  1:17 ` [patch 027/118] mm: teach pfn_to_online_page() to consider subsection validity Andrew Morton
2021-02-26  1:17 ` [patch 028/118] mm: teach pfn_to_online_page() about ZONE_DEVICE section collisions Andrew Morton
2021-02-26  1:17 ` [patch 029/118] mm: fix memory_failure() handling of dax-namespace metadata Andrew Morton
2021-02-26  1:17 ` [patch 030/118] mm/memory_hotplug: rename all existing 'memhp' into 'mhp' Andrew Morton
2021-02-26  1:17 ` [patch 031/118] mm/memory_hotplug: MEMHP_MERGE_RESOURCE -> MHP_MERGE_RESOURCE Andrew Morton
2021-02-26  1:17 ` [patch 032/118] mm/memory_hotplug: use helper function zone_end_pfn() to get end_pfn Andrew Morton
2021-02-26  1:17 ` [patch 033/118] drivers/base/memory: don't store phys_device in memory blocks Andrew Morton
2021-02-26  1:17 ` [patch 034/118] Documentation: sysfs/memory: clarify some memory block device properties Andrew Morton
2021-02-26  1:17 ` [patch 035/118] mm/memory_hotplug: prevalidate the address range being added with platform Andrew Morton
2021-02-26  1:17 ` [patch 036/118] arm64/mm: define arch_get_mappable_range() Andrew Morton
2021-02-26  1:17 ` [patch 037/118] s390/mm: " Andrew Morton
2021-02-26  1:17 ` [patch 038/118] virtio-mem: check against mhp_get_pluggable_range() which memory we can hotplug Andrew Morton
2021-02-26  1:17 ` [patch 039/118] mm/mlock: stop counting mlocked pages when none vma is found Andrew Morton
2021-02-26  1:17 ` [patch 040/118] mm/rmap: correct some obsolete comments of anon_vma Andrew Morton
2021-02-26  1:17 ` [patch 041/118] mm/rmap: remove unneeded semicolon in page_not_mapped() Andrew Morton
2021-02-26  1:17 ` [patch 042/118] mm/rmap: fix obsolete comment in __page_check_anon_rmap() Andrew Morton
2021-02-26  1:18 ` [patch 043/118] mm/rmap: use page_not_mapped in try_to_unmap() Andrew Morton
2021-02-26  1:18 ` [patch 044/118] mm/rmap: correct obsolete comment of page_get_anon_vma() Andrew Morton
2021-02-26  1:18 ` [patch 045/118] mm/rmap: fix potential pte_unmap on an not mapped pte Andrew Morton
2021-02-26  1:18 ` [patch 046/118] mm: zswap: clean up confusing comment Andrew Morton
2021-02-26  1:18 ` [patch 047/118] mm/zswap: add the flag can_sleep_mapped Andrew Morton
2021-02-26  1:18 ` [patch 048/118] mm: set the sleep_mapped to true for zbud and z3fold Andrew Morton
2021-02-26  1:18 ` [patch 049/118] mm/zsmalloc.c: convert to use kmem_cache_zalloc in cache_alloc_zspage() Andrew Morton
2021-02-26  1:18 ` [patch 050/118] zsmalloc: account the number of compacted pages correctly Andrew Morton
2021-02-26  1:18 ` [patch 051/118] mm/zsmalloc.c: use page_private() to access page->private Andrew Morton
2021-02-26  1:18 ` [patch 052/118] mm: page-flags.h: Typo fix (It -> If) Andrew Morton
2021-02-26  1:18 ` [patch 053/118] mm/dmapool: use might_alloc() Andrew Morton
2021-02-26  1:18 ` [patch 054/118] mm/backing-dev.c: " Andrew Morton
2021-02-26  1:18 ` [patch 055/118] mm/early_ioremap.c: use __func__ instead of function name Andrew Morton
2021-02-26  1:18 ` [patch 056/118] mm: add Kernel Electric-Fence infrastructure Andrew Morton
2021-02-26  1:18 ` [patch 057/118] x86, kfence: enable KFENCE for x86 Andrew Morton
2021-02-26  1:19 ` [patch 058/118] arm64, kfence: enable KFENCE for ARM64 Andrew Morton
2021-02-26  1:19 ` Andrew Morton [this message]
2021-02-26  1:19 ` [patch 060/118] mm, kfence: insert KFENCE hooks for SLAB Andrew Morton
2021-02-26  1:19 ` [patch 061/118] mm, kfence: insert KFENCE hooks for SLUB Andrew Morton
2021-02-26  1:19 ` [patch 062/118] kfence, kasan: make KFENCE compatible with KASAN Andrew Morton
2021-02-26  1:19 ` [patch 063/118] kfence, Documentation: add KFENCE documentation Andrew Morton
2021-02-26  1:19 ` [patch 064/118] kfence: add test suite Andrew Morton
2021-02-26  1:19 ` [patch 065/118] MAINTAINERS: add entry for KFENCE Andrew Morton
2021-02-26  1:19 ` [patch 066/118] kfence: report sensitive information based on no_hash_pointers Andrew Morton
2021-02-26  1:19 ` [patch 067/118] tracing: add error_report_end trace point Andrew Morton
2021-02-26 14:03   ` Steven Rostedt
2021-02-26  1:19 ` [patch 068/118] kfence: use error_report_end tracepoint Andrew Morton
2021-02-26  1:19 ` [patch 069/118] kasan: " Andrew Morton
2021-02-26  1:19 ` [patch 070/118] kasan, mm: don't save alloc stacks twice Andrew Morton
2021-02-26  1:19 ` [patch 071/118] kasan, mm: optimize kmalloc poisoning Andrew Morton
2021-02-26  1:20 ` [patch 072/118] kasan: optimize large " Andrew Morton
2021-02-26  1:20 ` [patch 073/118] kasan: clean up setting free info in kasan_slab_free Andrew Morton
2021-02-26  1:20 ` [patch 074/118] kasan: unify large kfree checks Andrew Morton
2021-02-26  1:20 ` [patch 075/118] kasan: rework krealloc tests Andrew Morton
2021-02-26  1:20 ` [patch 076/118] kasan, mm: fail krealloc on freed objects Andrew Morton
2021-02-26  1:20 ` [patch 077/118] kasan, mm: optimize krealloc poisoning Andrew Morton
2021-02-26  1:20 ` [patch 078/118] kasan: ensure poisoning size alignment Andrew Morton
2021-02-26  1:20 ` [patch 079/118] arm64: kasan: simplify and inline MTE functions Andrew Morton
2021-02-26  1:20 ` [patch 080/118] kasan: inline HW_TAGS helper functions Andrew Morton
2021-02-26  1:20 ` [patch 081/118] kasan: clarify that only first bug is reported in HW_TAGS Andrew Morton
2021-02-26  1:20 ` [patch 082/118] alpha: remove CONFIG_EXPERIMENTAL from defconfigs Andrew Morton
2021-02-26  1:20 ` [patch 083/118] proc/wchan: use printk format instead of lookup_symbol_name() Andrew Morton
2021-02-26  1:20 ` [patch 084/118] proc: use kvzalloc for our kernel buffer Andrew Morton
2021-02-26  1:20 ` [patch 085/118] sysctl.c: fix underflow value setting risk in vm_table Andrew Morton
2021-02-26  1:20 ` [patch 086/118] include/linux: remove repeated words Andrew Morton
2021-02-26  1:21 ` [patch 087/118] treewide: Miguel has moved Andrew Morton
2021-02-26  1:21 ` [patch 088/118] groups: use flexible-array member in struct group_info Andrew Morton
2021-02-26  1:21 ` [patch 089/118] groups: simplify struct group_info allocation Andrew Morton
2021-02-26  1:21 ` [patch 090/118] kernel: delete repeated words in comments Andrew Morton
2021-02-26  1:21 ` [patch 091/118] MAINTAINERS: add uapi directories to API/ABI section Andrew Morton
2021-02-27 19:18   ` Michael Kerrisk (man-pages)
2021-02-26  1:21 ` [patch 092/118] lib/genalloc.c: change return type to unsigned long for bitmap_set_ll Andrew Morton
2021-02-26  1:21 ` [patch 093/118] string.h: move fortified functions definitions in a dedicated header Andrew Morton
2021-02-26  1:21 ` [patch 094/118] lib: stackdepot: add support to configure STACK_HASH_SIZE Andrew Morton
2021-02-26  1:21 ` [patch 095/118] lib: stackdepot: add support to disable stack depot Andrew Morton
2021-02-26  1:21 ` [patch 096/118] lib: stackdepot: fix ignoring return value warning Andrew Morton
2021-02-26  1:21 ` [patch 097/118] lib/cmdline: remove an unneeded local variable in next_arg() Andrew Morton
2021-02-26  1:21 ` [patch 098/118] include/linux/bitops.h: spelling s/synomyn/synonym/ Andrew Morton
2021-02-26  1:21 ` [patch 099/118] checkpatch: improve blank line after declaration test Andrew Morton
2021-02-26  1:21 ` [patch 100/118] checkpatch: ignore warning designated initializers using NR_CPUS Andrew Morton
2021-02-26  1:21 ` [patch 101/118] checkpatch: trivial style fixes Andrew Morton
2021-02-26  1:21 ` [patch 102/118] checkpatch: prefer ftrace over function entry/exit printks Andrew Morton
2021-02-26  1:21 ` [patch 103/118] checkpatch: improve TYPECAST_INT_CONSTANT test message Andrew Morton
2021-02-26  1:21 ` [patch 104/118] checkpatch: add warning for avoiding .L prefix symbols in assembly files Andrew Morton
2021-02-26  1:22 ` [patch 105/118] checkpatch: add kmalloc_array_node to unnecessary OOM message check Andrew Morton
2021-02-26  1:22 ` [patch 106/118] checkpatch: don't warn about colon termination in linker scripts Andrew Morton
2021-02-26  1:22 ` [patch 107/118] checkpatch: do not apply "initialise globals to 0" check to BPF progs Andrew Morton
2021-02-26  1:22 ` [patch 108/118] init/version.c: remove Version_<LINUX_VERSION_CODE> symbol Andrew Morton
2021-02-26  1:22 ` [patch 109/118] init: clean up early_param_on_off() macro Andrew Morton
2021-02-26  1:22 ` [patch 110/118] init/Kconfig: fix a typo in CC_VERSION_TEXT help text Andrew Morton
2021-02-26  1:22 ` [patch 111/118] fs/coredump: use kmap_local_page() Andrew Morton
2021-02-26  1:22 ` [patch 112/118] seq_file: document how per-entry resources are managed Andrew Morton
2021-02-26  1:22 ` [patch 113/118] x86: fix seq_file iteration for pat/memtype.c Andrew Morton
2021-02-26  1:22 ` [patch 114/118] scripts/gdb: fix list_for_each Andrew Morton
2021-02-26  1:22 ` [patch 115/118] kgdb: fix to kill breakpoints on initmem after boot Andrew Morton
2021-02-26  1:22 ` [patch 116/118] ubsan: remove overflow checks Andrew Morton
2021-02-26  1:22 ` [patch 117/118] initramfs: panic with memory information Andrew Morton
2021-02-26  1:22 ` [patch 118/118] MIPS: make userspace mapping young by default Andrew Morton
2021-02-26 17:55 ` incoming Linus Torvalds
2021-02-26 19:16   ` incoming Andrew Morton

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