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authorLinus Torvalds <torvalds@linux-foundation.org>2018-06-12 18:28:00 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-06-12 18:28:00 -0700
commitb08fc5277aaa1d8ea15470d38bf36f19dfb0e125 (patch)
tree1910dc474cb1ede95581dd9faa81a3bebeded0dc /arch/mips
parent4597fcff07044d89c646d0c5d8b42cd976d966a1 (diff)
parent9d2a789c1db75d0f55b14fa57bec548d94332ad8 (diff)
Merge tag 'overflow-v4.18-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull more overflow updates from Kees Cook: "The rest of the overflow changes for v4.18-rc1. This includes the explicit overflow fixes from Silvio, further struct_size() conversions from Matthew, and a bug fix from Dan. But the bulk of it is the treewide conversions to use either the 2-factor argument allocators (e.g. kmalloc(a * b, ...) into kmalloc_array(a, b, ...) or the array_size() macros (e.g. vmalloc(a * b) into vmalloc(array_size(a, b)). Coccinelle was fighting me on several fronts, so I've done a bunch of manual whitespace updates in the patches as well. Summary: - Error path bug fix for overflow tests (Dan) - Additional struct_size() conversions (Matthew, Kees) - Explicitly reported overflow fixes (Silvio, Kees) - Add missing kvcalloc() function (Kees) - Treewide conversions of allocators to use either 2-factor argument variant when available, or array_size() and array3_size() as needed (Kees)" * tag 'overflow-v4.18-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (26 commits) treewide: Use array_size in f2fs_kvzalloc() treewide: Use array_size() in f2fs_kzalloc() treewide: Use array_size() in f2fs_kmalloc() treewide: Use array_size() in sock_kmalloc() treewide: Use array_size() in kvzalloc_node() treewide: Use array_size() in vzalloc_node() treewide: Use array_size() in vzalloc() treewide: Use array_size() in vmalloc() treewide: devm_kzalloc() -> devm_kcalloc() treewide: devm_kmalloc() -> devm_kmalloc_array() treewide: kvzalloc() -> kvcalloc() treewide: kvmalloc() -> kvmalloc_array() treewide: kzalloc_node() -> kcalloc_node() treewide: kzalloc() -> kcalloc() treewide: kmalloc() -> kmalloc_array() mm: Introduce kvcalloc() video: uvesafb: Fix integer overflow in allocation UBIFS: Fix potential integer overflow in allocation leds: Use struct_size() in allocation Convert intel uncore to struct_size ...
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/alchemy/common/clock.c2
-rw-r--r--arch/mips/alchemy/common/dbdma.c6
-rw-r--r--arch/mips/alchemy/common/platform.c4
-rw-r--r--arch/mips/alchemy/devboards/platform.c4
-rw-r--r--arch/mips/bmips/dma.c2
-rw-r--r--arch/mips/txx9/rbtx4939/setup.c2
6 files changed, 10 insertions, 10 deletions
diff --git a/arch/mips/alchemy/common/clock.c b/arch/mips/alchemy/common/clock.c
index 6b6f6851df92..d129475fd40d 100644
--- a/arch/mips/alchemy/common/clock.c
+++ b/arch/mips/alchemy/common/clock.c
@@ -985,7 +985,7 @@ static int __init alchemy_clk_setup_imux(int ctype)
return -ENODEV;
}
- a = kzalloc((sizeof(*a)) * 6, GFP_KERNEL);
+ a = kcalloc(6, sizeof(*a), GFP_KERNEL);
if (!a)
return -ENOMEM;
diff --git a/arch/mips/alchemy/common/dbdma.c b/arch/mips/alchemy/common/dbdma.c
index fc482d900ddd..4ca2c28878e0 100644
--- a/arch/mips/alchemy/common/dbdma.c
+++ b/arch/mips/alchemy/common/dbdma.c
@@ -411,8 +411,8 @@ u32 au1xxx_dbdma_ring_alloc(u32 chanid, int entries)
* and if we try that first we are likely to not waste larger
* slabs of memory.
*/
- desc_base = (u32)kmalloc(entries * sizeof(au1x_ddma_desc_t),
- GFP_KERNEL|GFP_DMA);
+ desc_base = (u32)kmalloc_array(entries, sizeof(au1x_ddma_desc_t),
+ GFP_KERNEL|GFP_DMA);
if (desc_base == 0)
return 0;
@@ -1050,7 +1050,7 @@ static int __init dbdma_setup(unsigned int irq, dbdev_tab_t *idtable)
{
int ret;
- dbdev_tab = kzalloc(sizeof(dbdev_tab_t) * DBDEV_TAB_SIZE, GFP_KERNEL);
+ dbdev_tab = kcalloc(DBDEV_TAB_SIZE, sizeof(dbdev_tab_t), GFP_KERNEL);
if (!dbdev_tab)
return -ENOMEM;
diff --git a/arch/mips/alchemy/common/platform.c b/arch/mips/alchemy/common/platform.c
index d77a64f4c78b..1454d9f6ab2d 100644
--- a/arch/mips/alchemy/common/platform.c
+++ b/arch/mips/alchemy/common/platform.c
@@ -115,7 +115,7 @@ static void __init alchemy_setup_uarts(int ctype)
uartclk = clk_get_rate(clk);
clk_put(clk);
- ports = kzalloc(s * (c + 1), GFP_KERNEL);
+ ports = kcalloc(s, (c + 1), GFP_KERNEL);
if (!ports) {
printk(KERN_INFO "Alchemy: no memory for UART data\n");
return;
@@ -198,7 +198,7 @@ static unsigned long alchemy_ehci_data[][2] __initdata = {
static int __init _new_usbres(struct resource **r, struct platform_device **d)
{
- *r = kzalloc(sizeof(struct resource) * 2, GFP_KERNEL);
+ *r = kcalloc(2, sizeof(struct resource), GFP_KERNEL);
if (!*r)
return -ENOMEM;
*d = kzalloc(sizeof(struct platform_device), GFP_KERNEL);
diff --git a/arch/mips/alchemy/devboards/platform.c b/arch/mips/alchemy/devboards/platform.c
index 4640edab207c..203854ddd1bb 100644
--- a/arch/mips/alchemy/devboards/platform.c
+++ b/arch/mips/alchemy/devboards/platform.c
@@ -103,7 +103,7 @@ int __init db1x_register_pcmcia_socket(phys_addr_t pcmcia_attr_start,
if (stschg_irq)
cnt++;
- sr = kzalloc(sizeof(struct resource) * cnt, GFP_KERNEL);
+ sr = kcalloc(cnt, sizeof(struct resource), GFP_KERNEL);
if (!sr)
return -ENOMEM;
@@ -178,7 +178,7 @@ int __init db1x_register_norflash(unsigned long size, int width,
return -EINVAL;
ret = -ENOMEM;
- parts = kzalloc(sizeof(struct mtd_partition) * 5, GFP_KERNEL);
+ parts = kcalloc(5, sizeof(struct mtd_partition), GFP_KERNEL);
if (!parts)
goto out;
diff --git a/arch/mips/bmips/dma.c b/arch/mips/bmips/dma.c
index 04790f4e1805..6dec30842b2f 100644
--- a/arch/mips/bmips/dma.c
+++ b/arch/mips/bmips/dma.c
@@ -94,7 +94,7 @@ static int __init bmips_init_dma_ranges(void)
goto out_bad;
/* add a dummy (zero) entry at the end as a sentinel */
- bmips_dma_ranges = kzalloc(sizeof(struct bmips_dma_range) * (len + 1),
+ bmips_dma_ranges = kcalloc(len + 1, sizeof(struct bmips_dma_range),
GFP_KERNEL);
if (!bmips_dma_ranges)
goto out_bad;
diff --git a/arch/mips/txx9/rbtx4939/setup.c b/arch/mips/txx9/rbtx4939/setup.c
index fd26fadc8617..ef29a9c2ffd6 100644
--- a/arch/mips/txx9/rbtx4939/setup.c
+++ b/arch/mips/txx9/rbtx4939/setup.c
@@ -219,7 +219,7 @@ static int __init rbtx4939_led_probe(struct platform_device *pdev)
"nand-disk",
};
- leds_data = kzalloc(sizeof(*leds_data) * RBTX4939_MAX_7SEGLEDS,
+ leds_data = kcalloc(RBTX4939_MAX_7SEGLEDS, sizeof(*leds_data),
GFP_KERNEL);
if (!leds_data)
return -ENOMEM;