Re: Linux 4.4.188

From: Greg KH
Date: Tue Aug 06 2019 - 14:42:06 EST

diff --git a/Makefile b/Makefile
index fdfe65eefa36..87d663191986 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
VERSION = 4
PATCHLEVEL = 4
-SUBLEVEL = 187
+SUBLEVEL = 188
EXTRAVERSION =
NAME = Blurry Fish Butt

diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
index 04ea209f1737..98abb053b7da 100644
--- a/arch/arm/boot/dts/rk3288.dtsi
+++ b/arch/arm/boot/dts/rk3288.dtsi
@@ -205,6 +205,7 @@
<GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>,
<GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
clock-frequency = <24000000>;
+ arm,no-tick-in-suspend;
};

timer: timer@ff810000 {
diff --git a/arch/arm/mach-rpc/dma.c b/arch/arm/mach-rpc/dma.c
index 6d3517dc4772..82aac38fa2cf 100644
--- a/arch/arm/mach-rpc/dma.c
+++ b/arch/arm/mach-rpc/dma.c
@@ -131,7 +131,7 @@ static irqreturn_t iomd_dma_handle(int irq, void *dev_id)
} while (1);

idma->state = ~DMA_ST_AB;
- disable_irq(irq);
+ disable_irq_nosync(irq);

return IRQ_HANDLED;
}
@@ -174,6 +174,9 @@ static void iomd_enable_dma(unsigned int chan, dma_t *dma)
DMA_FROM_DEVICE : DMA_TO_DEVICE);
}

+ idma->dma_addr = idma->dma.sg->dma_address;
+ idma->dma_len = idma->dma.sg->length;
+
iomd_writeb(DMA_CR_C, dma_base + CR);
idma->state = DMA_ST_AB;
}
diff --git a/arch/mips/lantiq/irq.c b/arch/mips/lantiq/irq.c
index 2e7f60c9fc5d..a7057a06c096 100644
--- a/arch/mips/lantiq/irq.c
+++ b/arch/mips/lantiq/irq.c
@@ -160,8 +160,9 @@ static int ltq_eiu_settype(struct irq_data *d, unsigned int type)
if (edge)
irq_set_handler(d->hwirq, handle_edge_irq);

- ltq_eiu_w32(ltq_eiu_r32(LTQ_EIU_EXIN_C) |
- (val << (i * 4)), LTQ_EIU_EXIN_C);
+ ltq_eiu_w32((ltq_eiu_r32(LTQ_EIU_EXIN_C) &
+ (~(7 << (i * 4)))) | (val << (i * 4)),
+ LTQ_EIU_EXIN_C);
}
}

diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index fd810a57ab1b..3328a37ddc75 100644
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -44,7 +44,7 @@ static inline void generic_apic_probe(void)

#ifdef CONFIG_X86_LOCAL_APIC

-extern unsigned int apic_verbosity;
+extern int apic_verbosity;
extern int local_apic_timer_c2_ok;

extern int disable_apic;
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 2cb49ac1b2b2..39f202462029 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1184,25 +1184,29 @@ enum {
#define kvm_arch_vcpu_memslots_id(vcpu) ((vcpu)->arch.hflags & HF_SMM_MASK ? 1 : 0)
#define kvm_memslots_for_spte_role(kvm, role) __kvm_memslots(kvm, (role).smm)

+asmlinkage void __noreturn kvm_spurious_fault(void);
+
/*
* Hardware virtualization extension instructions may fault if a
* reboot turns off virtualization while processes are running.
- * Trap the fault and ignore the instruction if that happens.
+ * Usually after catching the fault we just panic; during reboot
+ * instead the instruction is ignored.
*/
-asmlinkage void kvm_spurious_fault(void);
-
-#define ____kvm_handle_fault_on_reboot(insn, cleanup_insn) \
- "666: " insn "\n\t" \
- "668: \n\t" \
- ".pushsection .fixup, \"ax\" \n" \
- "667: \n\t" \
- cleanup_insn "\n\t" \
- "cmpb $0, kvm_rebooting \n\t" \
- "jne 668b \n\t" \
- __ASM_SIZE(push) " $666b \n\t" \
- "jmp kvm_spurious_fault \n\t" \
- ".popsection \n\t" \
- _ASM_EXTABLE(666b, 667b)
+#define ____kvm_handle_fault_on_reboot(insn, cleanup_insn) \
+ "666: \n\t" \
+ insn "\n\t" \
+ "jmp 668f \n\t" \
+ "667: \n\t" \
+ "call kvm_spurious_fault \n\t" \
+ "668: \n\t" \
+ ".pushsection .fixup, \"ax\" \n\t" \
+ "700: \n\t" \
+ cleanup_insn "\n\t" \
+ "cmpb $0, kvm_rebooting\n\t" \
+ "je 667b \n\t" \
+ "jmp 668b \n\t" \
+ ".popsection \n\t" \
+ _ASM_EXTABLE(666b, 700b)

#define __kvm_handle_fault_on_reboot(insn) \
____kvm_handle_fault_on_reboot(insn, "")
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index deddc9b93299..cc6c33249850 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -171,7 +171,7 @@ int first_system_vector = FIRST_SYSTEM_VECTOR;
/*
* Debug level, exported for io_apic.c
*/
-unsigned int apic_verbosity;
+int apic_verbosity;

int pic_mode;

diff --git a/arch/x86/math-emu/fpu_emu.h b/arch/x86/math-emu/fpu_emu.h
index afbc4d805d66..df5aee5402c4 100644
--- a/arch/x86/math-emu/fpu_emu.h
+++ b/arch/x86/math-emu/fpu_emu.h
@@ -176,7 +176,7 @@ static inline void reg_copy(FPU_REG const *x, FPU_REG *y)
#define setexponentpos(x,y) { (*(short *)&((x)->exp)) = \
((y) + EXTENDED_Ebias) & 0x7fff; }
#define exponent16(x) (*(short *)&((x)->exp))
-#define setexponent16(x,y) { (*(short *)&((x)->exp)) = (y); }
+#define setexponent16(x,y) { (*(short *)&((x)->exp)) = (u16)(y); }
#define addexponent(x,y) { (*(short *)&((x)->exp)) += (y); }
#define stdexp(x) { (*(short *)&((x)->exp)) += EXTENDED_Ebias; }

diff --git a/arch/x86/math-emu/reg_constant.c b/arch/x86/math-emu/reg_constant.c
index 00548354912f..382093c5072b 100644
--- a/arch/x86/math-emu/reg_constant.c
+++ b/arch/x86/math-emu/reg_constant.c
@@ -17,7 +17,7 @@
#include "control_w.h"

#define MAKE_REG(s, e, l, h) { l, h, \
- ((EXTENDED_Ebias+(e)) | ((SIGN_##s != 0)*0x8000)) }
+ (u16)((EXTENDED_Ebias+(e)) | ((SIGN_##s != 0)*0x8000)) }

FPU_REG const CONST_1 = MAKE_REG(POS, 0, 0x00000000, 0x80000000);
#if 0
diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c
index 2b36d1c63aa5..956189a1ba81 100644
--- a/drivers/dma/sh/rcar-dmac.c
+++ b/drivers/dma/sh/rcar-dmac.c
@@ -1030,7 +1030,7 @@ rcar_dmac_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
dma_addr_t dev_addr;

/* Someone calling slave DMA on a generic channel? */
- if (rchan->mid_rid < 0 || !sg_len) {
+ if (rchan->mid_rid < 0 || !sg_len || !sg_dma_len(sgl)) {
dev_warn(chan->device->dev,
"%s: bad parameter: len=%d, id=%d\n",
__func__, sg_len, rchan->mid_rid);
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 26255862d1cf..7524a33b7032 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -4307,8 +4307,12 @@ int be_update_queues(struct be_adapter *adapter)
struct net_device *netdev = adapter->netdev;
int status;

- if (netif_running(netdev))
+ if (netif_running(netdev)) {
+ /* device cannot transmit now, avoid dev_watchdog timeouts */
+ netif_carrier_off(netdev);
+
be_close(netdev);
+ }

be_cancel_worker(adapter);

diff --git a/drivers/s390/block/dasd_alias.c b/drivers/s390/block/dasd_alias.c
index 286782c60da4..6601047d4b65 100644
--- a/drivers/s390/block/dasd_alias.c
+++ b/drivers/s390/block/dasd_alias.c
@@ -396,6 +396,20 @@ suborder_not_supported(struct dasd_ccw_req *cqr)
char msg_format;
char msg_no;

+ /*
+ * intrc values ENODEV, ENOLINK and EPERM
+ * will be optained from sleep_on to indicate that no
+ * IO operation can be started
+ */
+ if (cqr->intrc == -ENODEV)
+ return 1;
+
+ if (cqr->intrc == -ENOLINK)
+ return 1;
+
+ if (cqr->intrc == -EPERM)
+ return 1;
+
sense = dasd_get_sense(&cqr->irb);
if (!sense)
return 0;
@@ -460,12 +474,8 @@ static int read_unit_address_configuration(struct dasd_device *device,
lcu->flags &= ~NEED_UAC_UPDATE;
spin_unlock_irqrestore(&lcu->lock, flags);

- do {
- rc = dasd_sleep_on(cqr);
- if (rc && suborder_not_supported(cqr))
- return -EOPNOTSUPP;
- } while (rc && (cqr->retries > 0));
- if (rc) {
+ rc = dasd_sleep_on(cqr);
+ if (rc && !suborder_not_supported(cqr)) {
spin_lock_irqsave(&lcu->lock, flags);
lcu->flags |= NEED_UAC_UPDATE;
spin_unlock_irqrestore(&lcu->lock, flags);
diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c
index abe460eac712..cc62d8cc8cfd 100644
--- a/drivers/s390/scsi/zfcp_erp.c
+++ b/drivers/s390/scsi/zfcp_erp.c
@@ -10,6 +10,7 @@
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt

#include <linux/kthread.h>
+#include <linux/bug.h>
#include "zfcp_ext.h"
#include "zfcp_reqlist.h"

@@ -244,6 +245,12 @@ static struct zfcp_erp_action *zfcp_erp_setup_act(int need, u32 act_status,
struct zfcp_erp_action *erp_action;
struct zfcp_scsi_dev *zfcp_sdev;

+ if (WARN_ON_ONCE(need != ZFCP_ERP_ACTION_REOPEN_LUN &&
+ need != ZFCP_ERP_ACTION_REOPEN_PORT &&
+ need != ZFCP_ERP_ACTION_REOPEN_PORT_FORCED &&
+ need != ZFCP_ERP_ACTION_REOPEN_ADAPTER))
+ return NULL;
+
switch (need) {
case ZFCP_ERP_ACTION_REOPEN_LUN:
zfcp_sdev = sdev_to_zfcp(sdev);
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index a8a388382347..80e292227cef 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -365,8 +365,8 @@ xen_swiotlb_free_coherent(struct device *hwdev, size_t size, void *vaddr,
/* Convert the size to actually allocated. */
size = 1UL << (order + XEN_PAGE_SHIFT);

- if (((dev_addr + size - 1 <= dma_mask)) ||
- range_straddles_page_boundary(phys, size))
+ if (!WARN_ON((dev_addr + size - 1 > dma_mask) ||
+ range_straddles_page_boundary(phys, size)))
xen_destroy_contiguous_region(phys, order);

xen_free_coherent_pages(hwdev, size, vaddr, (dma_addr_t)phys, attrs);
diff --git a/fs/adfs/super.c b/fs/adfs/super.c
index 4d4a0df8344f..b00ae922ece2 100644
--- a/fs/adfs/super.c
+++ b/fs/adfs/super.c
@@ -368,6 +368,7 @@ static int adfs_fill_super(struct super_block *sb, void *data, int silent)
struct buffer_head *bh;
struct object_info root_obj;
unsigned char *b_data;
+ unsigned int blocksize;
struct adfs_sb_info *asb;
struct inode *root;
int ret = -EINVAL;
@@ -419,8 +420,10 @@ static int adfs_fill_super(struct super_block *sb, void *data, int silent)
goto error_free_bh;
}

+ blocksize = 1 << dr->log2secsize;
brelse(bh);
- if (sb_set_blocksize(sb, 1 << dr->log2secsize)) {
+
+ if (sb_set_blocksize(sb, blocksize)) {
bh = sb_bread(sb, ADFS_DISCRECORD / sb->s_blocksize);
if (!bh) {
adfs_error(sb, "couldn't read superblock on "
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 4eb7a6ba7e47..55ce6543050d 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -4942,8 +4942,7 @@ static inline int btrfs_chunk_max_errors(struct map_lookup *map)

if (map->type & (BTRFS_BLOCK_GROUP_RAID1 |
BTRFS_BLOCK_GROUP_RAID10 |
- BTRFS_BLOCK_GROUP_RAID5 |
- BTRFS_BLOCK_GROUP_DUP)) {
+ BTRFS_BLOCK_GROUP_RAID5)) {
max_errors = 1;
} else if (map->type & BTRFS_BLOCK_GROUP_RAID6) {
max_errors = 2;
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index 8c8cb8fe3d32..5d05c77c158d 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -474,7 +474,12 @@ static inline void __ceph_dir_set_complete(struct ceph_inode_info *ci,
long long release_count,
long long ordered_count)
{
- smp_mb__before_atomic();
+ /*
+ * Makes sure operations that setup readdir cache (update page
+ * cache and i_size) are strongly ordered w.r.t. the following
+ * atomic64_set() operations.
+ */
+ smp_mb();
atomic64_set(&ci->i_complete_seq[0], release_count);
atomic64_set(&ci->i_complete_seq[1], ordered_count);
}
diff --git a/fs/coda/psdev.c b/fs/coda/psdev.c
index 822629126e89..ff9b5cf8ff01 100644
--- a/fs/coda/psdev.c
+++ b/fs/coda/psdev.c
@@ -187,8 +187,11 @@ static ssize_t coda_psdev_write(struct file *file, const char __user *buf,
if (req->uc_opcode == CODA_OPEN_BY_FD) {
struct coda_open_by_fd_out *outp =
(struct coda_open_by_fd_out *)req->uc_data;
- if (!outp->oh.result)
+ if (!outp->oh.result) {
outp->fh = fget(outp->fd);
+ if (!outp->fh)
+ return -EBADF;
+ }
}

wake_up(&req->uc_sleep);
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 3672893b275e..6a30f1e03aa9 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -226,7 +226,10 @@ void acpi_set_irq_model(enum acpi_irq_model_id model,
#ifdef CONFIG_X86_IO_APIC
extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
#else
-#define acpi_get_override_irq(gsi, trigger, polarity) (-1)
+static inline int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity)
+{
+ return -1;
+}
#endif
/*
* This function undoes the effect of one call to acpi_register_gsi().
diff --git a/include/linux/coda.h b/include/linux/coda.h
index d30209b9cef8..0ca0c83fdb1c 100644
--- a/include/linux/coda.h
+++ b/include/linux/coda.h
@@ -58,8 +58,7 @@ Mellon the rights to redistribute these changes without encumbrance.
#ifndef _CODA_HEADER_
#define _CODA_HEADER_

-#if defined(__linux__)
typedef unsigned long long u_quad_t;
-#endif
+
#include <uapi/linux/coda.h>
#endif
diff --git a/include/linux/coda_psdev.h b/include/linux/coda_psdev.h
index 5b8721efa948..fe1466daf291 100644
--- a/include/linux/coda_psdev.h
+++ b/include/linux/coda_psdev.h
@@ -19,6 +19,17 @@ struct venus_comm {
struct mutex vc_mutex;
};

+/* messages between coda filesystem in kernel and Venus */
+struct upc_req {
+ struct list_head uc_chain;
+ caddr_t uc_data;
+ u_short uc_flags;
+ u_short uc_inSize; /* Size is at most 5000 bytes */
+ u_short uc_outSize;
+ u_short uc_opcode; /* copied from data to save lookup */
+ int uc_unique;
+ wait_queue_head_t uc_sleep; /* process' wait queue */
+};

static inline struct venus_comm *coda_vcp(struct super_block *sb)
{
diff --git a/include/uapi/linux/coda_psdev.h b/include/uapi/linux/coda_psdev.h
index 79d05981fc4b..e2c44d2f7d5b 100644
--- a/include/uapi/linux/coda_psdev.h
+++ b/include/uapi/linux/coda_psdev.h
@@ -6,19 +6,6 @@
#define CODA_PSDEV_MAJOR 67
#define MAX_CODADEVS 5 /* how many do we allow */

-
-/* messages between coda filesystem in kernel and Venus */
-struct upc_req {
- struct list_head uc_chain;
- caddr_t uc_data;
- u_short uc_flags;
- u_short uc_inSize; /* Size is at most 5000 bytes */
- u_short uc_outSize;
- u_short uc_opcode; /* copied from data to save lookup */
- int uc_unique;
- wait_queue_head_t uc_sleep; /* process' wait queue */
-};
-
#define CODA_REQ_ASYNC 0x1
#define CODA_REQ_READ 0x2
#define CODA_REQ_WRITE 0x4
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index 6ed74825ab54..2a39784d5704 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -371,7 +371,6 @@ static void mqueue_evict_inode(struct inode *inode)
{
struct mqueue_inode_info *info;
struct user_struct *user;
- unsigned long mq_bytes, mq_treesize;
struct ipc_namespace *ipc_ns;
struct msg_msg *msg, *nmsg;
LIST_HEAD(tmp_msg);
@@ -394,16 +393,18 @@ static void mqueue_evict_inode(struct inode *inode)
free_msg(msg);
}

- /* Total amount of bytes accounted for the mqueue */
- mq_treesize = info->attr.mq_maxmsg * sizeof(struct msg_msg) +
- min_t(unsigned int, info->attr.mq_maxmsg, MQ_PRIO_MAX) *
- sizeof(struct posix_msg_tree_node);
-
- mq_bytes = mq_treesize + (info->attr.mq_maxmsg *
- info->attr.mq_msgsize);
-
user = info->user;
if (user) {
+ unsigned long mq_bytes, mq_treesize;
+
+ /* Total amount of bytes accounted for the mqueue */
+ mq_treesize = info->attr.mq_maxmsg * sizeof(struct msg_msg) +
+ min_t(unsigned int, info->attr.mq_maxmsg, MQ_PRIO_MAX) *
+ sizeof(struct posix_msg_tree_node);
+
+ mq_bytes = mq_treesize + (info->attr.mq_maxmsg *
+ info->attr.mq_msgsize);
+
spin_lock(&mq_lock);
user->mq_bytes -= mq_bytes;
/*
diff --git a/kernel/module.c b/kernel/module.c
index bcc78f4c15e9..b940b2825b7b 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -3225,8 +3225,7 @@ static bool finished_loading(const char *name)
sched_annotate_sleep();
mutex_lock(&module_mutex);
mod = find_module_all(name, strlen(name), true);
- ret = !mod || mod->state == MODULE_STATE_LIVE
- || mod->state == MODULE_STATE_GOING;
+ ret = !mod || mod->state == MODULE_STATE_LIVE;
mutex_unlock(&module_mutex);

return ret;
@@ -3385,8 +3384,7 @@ again:
mutex_lock(&module_mutex);
old = find_module_all(mod->name, strlen(mod->name), true);
if (old != NULL) {
- if (old->state == MODULE_STATE_COMING
- || old->state == MODULE_STATE_UNFORMED) {
+ if (old->state != MODULE_STATE_LIVE) {
/* Wait in case it fails to load. */
mutex_unlock(&module_mutex);
err = wait_event_interruptible(module_wq,
diff --git a/mm/cma.c b/mm/cma.c
index 5ae4452656cd..65c7aa419048 100644
--- a/mm/cma.c
+++ b/mm/cma.c
@@ -268,6 +268,12 @@ int __init cma_declare_contiguous(phys_addr_t base,
*/
alignment = max(alignment, (phys_addr_t)PAGE_SIZE <<
max_t(unsigned long, MAX_ORDER - 1, pageblock_order));
+ if (fixed && base & (alignment - 1)) {
+ ret = -EINVAL;
+ pr_err("Region at %pa must be aligned to %pa bytes\n",
+ &base, &alignment);
+ goto err;
+ }
base = ALIGN(base, alignment);
size = ALIGN(size, alignment);
limit &= ~(alignment - 1);
@@ -298,6 +304,13 @@ int __init cma_declare_contiguous(phys_addr_t base,
if (limit == 0 || limit > memblock_end)
limit = memblock_end;

+ if (base + size > limit) {
+ ret = -EINVAL;
+ pr_err("Size (%pa) of region at %pa exceeds limit (%pa)\n",
+ &size, &base, &limit);
+ goto err;
+ }
+
/* Reserve memory */
if (fixed) {
if (memblock_is_region_reserved(base, size) ||
diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c
index 965a55eacaba..01fbbbf89f41 100644
--- a/security/selinux/ss/policydb.c
+++ b/security/selinux/ss/policydb.c
@@ -266,6 +266,8 @@ static int rangetr_cmp(struct hashtab *h, const void *k1, const void *k2)
return v;
}

+static int (*destroy_f[SYM_NUM]) (void *key, void *datum, void *datap);
+
/*
* Initialize a policy database structure.
*/
@@ -313,8 +315,10 @@ static int policydb_init(struct policydb *p)
out:
hashtab_destroy(p->filename_trans);
hashtab_destroy(p->range_tr);
- for (i = 0; i < SYM_NUM; i++)
+ for (i = 0; i < SYM_NUM; i++) {
+ hashtab_map(p->symtab[i].table, destroy_f[i], NULL);
hashtab_destroy(p->symtab[i].table);
+ }
return rc;
}