treewide: use get_random_u32_below() instead of deprecated function

This is a simple mechanical transformation done by: @@ expression E; @@ - prandom_u32_max + get_random_u32_below (E) Reviewed-by: Kees Cook <[email protected]> Reviewed-by: Greg Kroah-Hartman <[email protected]> Acked-by: Darrick J. Wong <[email protected]> # for xfs Reviewed-by: SeongJae Park <[email protected]> # for damon Reviewed-by: Jason Gunthorpe <[email protected]> # for infiniband Reviewed-by: Russell King (Oracle) <[email protected]> # for arm Acked-by: Ulf Hansson <[email protected]> # for mmc Signed-off-by: Jason A. Donenfeld <[email protected]>
wafgo · Nov 18, 2022 · 8032bf1 · 8032bf1
1 parent 7f576b2
commit 8032bf1
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Showing 132 changed files with 280 additions and 280 deletions.
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
@@ -371,7 +371,7 @@ static unsigned long sigpage_addr(const struct mm_struct *mm,
 
 	slots = ((last - first) >> PAGE_SHIFT) + 1;
 
-	offset = prandom_u32_max(slots);
+	offset = get_random_u32_below(slots);
 
 	addr = first + (offset << PAGE_SHIFT);
 

diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
@@ -591,7 +591,7 @@ unsigned long __get_wchan(struct task_struct *p)
 unsigned long arch_align_stack(unsigned long sp)
 {
 	if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
-		sp -= prandom_u32_max(PAGE_SIZE);
+		sp -= get_random_u32_below(PAGE_SIZE);
 	return sp & ~0xf;
 }
 

diff --git a/arch/loongarch/kernel/process.c b/arch/loongarch/kernel/process.c
@@ -293,7 +293,7 @@ unsigned long stack_top(void)
 unsigned long arch_align_stack(unsigned long sp)
 {
 	if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
-		sp -= prandom_u32_max(PAGE_SIZE);
+		sp -= get_random_u32_below(PAGE_SIZE);
 
 	return sp & STACK_ALIGN;
 }

diff --git a/arch/loongarch/kernel/vdso.c b/arch/loongarch/kernel/vdso.c
@@ -78,7 +78,7 @@ static unsigned long vdso_base(void)
 	unsigned long base = STACK_TOP;
 
 	if (current->flags & PF_RANDOMIZE) {
-		base += prandom_u32_max(VDSO_RANDOMIZE_SIZE);
+		base += get_random_u32_below(VDSO_RANDOMIZE_SIZE);
 		base = PAGE_ALIGN(base);
 	}
 

diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
@@ -711,7 +711,7 @@ unsigned long mips_stack_top(void)
 unsigned long arch_align_stack(unsigned long sp)
 {
 	if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
-		sp -= prandom_u32_max(PAGE_SIZE);
+		sp -= get_random_u32_below(PAGE_SIZE);
 
 	return sp & ALMASK;
 }

diff --git a/arch/mips/kernel/vdso.c b/arch/mips/kernel/vdso.c
@@ -79,7 +79,7 @@ static unsigned long vdso_base(void)
 	}
 
 	if (current->flags & PF_RANDOMIZE) {
-		base += prandom_u32_max(VDSO_RANDOMIZE_SIZE);
+		base += get_random_u32_below(VDSO_RANDOMIZE_SIZE);
 		base = PAGE_ALIGN(base);
 	}
 

diff --git a/arch/parisc/kernel/vdso.c b/arch/parisc/kernel/vdso.c
@@ -75,7 +75,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm,
 
 	map_base = mm->mmap_base;
 	if (current->flags & PF_RANDOMIZE)
-		map_base -= prandom_u32_max(0x20) * PAGE_SIZE;
+		map_base -= get_random_u32_below(0x20) * PAGE_SIZE;
 
 	vdso_text_start = get_unmapped_area(NULL, map_base, vdso_text_len, 0, 0);
 

diff --git a/arch/powerpc/crypto/crc-vpmsum_test.c b/arch/powerpc/crypto/crc-vpmsum_test.c
@@ -77,8 +77,8 @@ static int __init crc_test_init(void)
 
 		pr_info("crc-vpmsum_test begins, %lu iterations\n", iterations);
 		for (i=0; i<iterations; i++) {
-			size_t offset = prandom_u32_max(16);
-			size_t len = prandom_u32_max(MAX_CRC_LENGTH);
+			size_t offset = get_random_u32_below(16);
+			size_t len = get_random_u32_below(MAX_CRC_LENGTH);
 
 			if (len <= offset)
 				continue;

diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
@@ -2303,6 +2303,6 @@ void notrace __ppc64_runlatch_off(void)
 unsigned long arch_align_stack(unsigned long sp)
 {
 	if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
-		sp -= prandom_u32_max(PAGE_SIZE);
+		sp -= get_random_u32_below(PAGE_SIZE);
 	return sp & ~0xf;
 }
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
@@ -224,7 +224,7 @@ unsigned long __get_wchan(struct task_struct *p)
 unsigned long arch_align_stack(unsigned long sp)
 {
 	if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
-		sp -= prandom_u32_max(PAGE_SIZE);
+		sp -= get_random_u32_below(PAGE_SIZE);
 	return sp & ~0xf;
 }
 

diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c
@@ -227,7 +227,7 @@ static unsigned long vdso_addr(unsigned long start, unsigned long len)
 	end -= len;
 
 	if (end > start) {
-		offset = prandom_u32_max(((end - start) >> PAGE_SHIFT) + 1);
+		offset = get_random_u32_below(((end - start) >> PAGE_SHIFT) + 1);
 		addr = start + (offset << PAGE_SHIFT);
 	} else {
 		addr = start;

diff --git a/arch/sparc/vdso/vma.c b/arch/sparc/vdso/vma.c
@@ -354,7 +354,7 @@ static unsigned long vdso_addr(unsigned long start, unsigned int len)
 	unsigned int offset;
 
 	/* This loses some more bits than a modulo, but is cheaper */
-	offset = prandom_u32_max(PTRS_PER_PTE);
+	offset = get_random_u32_below(PTRS_PER_PTE);
 	return start + (offset << PAGE_SHIFT);
 }
 

diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
@@ -356,7 +356,7 @@ int singlestepping(void * t)
 unsigned long arch_align_stack(unsigned long sp)
 {
 	if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
-		sp -= prandom_u32_max(8192);
+		sp -= get_random_u32_below(8192);
 	return sp & ~0xf;
 }
 #endif

diff --git a/arch/x86/entry/vdso/vma.c b/arch/x86/entry/vdso/vma.c
@@ -327,7 +327,7 @@ static unsigned long vdso_addr(unsigned long start, unsigned len)
 	end -= len;
 
 	if (end > start) {
-		offset = prandom_u32_max(((end - start) >> PAGE_SHIFT) + 1);
+		offset = get_random_u32_below(((end - start) >> PAGE_SHIFT) + 1);
 		addr = start + (offset << PAGE_SHIFT);
 	} else {
 		addr = start;

diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c
@@ -53,7 +53,7 @@ static unsigned long int get_module_load_offset(void)
 		 */
 		if (module_load_offset == 0)
 			module_load_offset =
-				(prandom_u32_max(1024) + 1) * PAGE_SIZE;
+				(get_random_u32_below(1024) + 1) * PAGE_SIZE;
 		mutex_unlock(&module_kaslr_mutex);
 	}
 	return module_load_offset;

diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
@@ -965,7 +965,7 @@ early_param("idle", idle_setup);
 unsigned long arch_align_stack(unsigned long sp)
 {
 	if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
-		sp -= prandom_u32_max(8192);
+		sp -= get_random_u32_below(8192);
 	return sp & ~0xf;
 }
 

diff --git a/arch/x86/mm/pat/cpa-test.c b/arch/x86/mm/pat/cpa-test.c
@@ -136,10 +136,10 @@ static int pageattr_test(void)
 	failed += print_split(&sa);
 
 	for (i = 0; i < NTEST; i++) {
-		unsigned long pfn = prandom_u32_max(max_pfn_mapped);
+		unsigned long pfn = get_random_u32_below(max_pfn_mapped);
 
 		addr[i] = (unsigned long)__va(pfn << PAGE_SHIFT);
-		len[i] = prandom_u32_max(NPAGES);
+		len[i] = get_random_u32_below(NPAGES);
 		len[i] = min_t(unsigned long, len[i], max_pfn_mapped - pfn - 1);
 
 		if (len[i] == 0)

diff --git a/crypto/rsa-pkcs1pad.c b/crypto/rsa-pkcs1pad.c
@@ -253,7 +253,7 @@ static int pkcs1pad_encrypt(struct akcipher_request *req)
 	ps_end = ctx->key_size - req->src_len - 2;
 	req_ctx->in_buf[0] = 0x02;
 	for (i = 1; i < ps_end; i++)
-		req_ctx->in_buf[i] = 1 + prandom_u32_max(255);
+		req_ctx->in_buf[i] = 1 + get_random_u32_below(255);
 	req_ctx->in_buf[ps_end] = 0x00;
 
 	pkcs1pad_sg_set_buf(req_ctx->in_sg, req_ctx->in_buf,