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s390 updates for 5.15-rc2

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- Fix potential out-of-range access during secure boot facility detection.
 
 - Fully validate the VMA before calling follow_pte() in pci code.
 
 - Remove arch specific WARN_DYNAMIC_STACK config option.
 
 - Fix zcrypto kernel doc comments.
 
 - Update defconfigs.
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Merge tag 's390-5.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 fixes from Vasily Gorbik:

 - Fix potential out-of-range access during secure boot facility
   detection.

 - Fully validate the VMA before calling follow_pte() in pci code.

 - Remove arch specific WARN_DYNAMIC_STACK config option.

 - Fix zcrypto kernel doc comments.

 - Update defconfigs.

* tag 's390-5.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390: remove WARN_DYNAMIC_STACK
  s390/ap: fix kernel doc comments
  s390: update defconfigs
  s390/sclp: fix Secure-IPL facility detection
  s390/pci_mmio: fully validate the VMA before calling follow_pte()
This commit is contained in:
Linus Torvalds 2021-09-18 12:46:14 -07:00
commit 93ff9f13be
8 changed files with 17 additions and 27 deletions
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10
arch/s390/Kconfig
View file

@ -685,16 +685,6 @@ config STACK_GUARD
The minimum size for the stack guard should be 256 for 31 bit and
512 for 64 bit.
config WARN_DYNAMIC_STACK
def_bool n
prompt "Emit compiler warnings for function with dynamic stack usage"
help
This option enables the compiler option -mwarn-dynamicstack. If the
compiler supports this options generates warnings for functions
that dynamically allocate stack space using alloca.
Say N if you are unsure.
endmenu
menu "I/O subsystem"

7
arch/s390/Makefile
View file

@ -85,13 +85,6 @@ cflags-$(CONFIG_CHECK_STACK) += -mstack-guard=$(CONFIG_STACK_GUARD)
endif
endif
ifdef CONFIG_WARN_DYNAMIC_STACK
ifneq ($(call cc-option,-mwarn-dynamicstack),)
KBUILD_CFLAGS += -mwarn-dynamicstack
KBUILD_CFLAGS_DECOMPRESSOR += -mwarn-dynamicstack
endif
endif
ifdef CONFIG_EXPOLINE
ifneq ($(call cc-option,$(CC_FLAGS_MARCH) -mindirect-branch=thunk),)
CC_FLAGS_EXPOLINE := -mindirect-branch=thunk

8
arch/s390/configs/debug_defconfig
View file

@ -10,6 +10,7 @@ CONFIG_BPF_JIT=y
CONFIG_BPF_JIT_ALWAYS_ON=y
CONFIG_BPF_LSM=y
CONFIG_PREEMPT=y
CONFIG_SCHED_CORE=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_TASKSTATS=y
@ -503,6 +504,7 @@ CONFIG_NLMON=m
# CONFIG_NET_VENDOR_HUAWEI is not set
# CONFIG_NET_VENDOR_INTEL is not set
# CONFIG_NET_VENDOR_MICROSOFT is not set
# CONFIG_NET_VENDOR_LITEX is not set
# CONFIG_NET_VENDOR_MARVELL is not set
CONFIG_MLX4_EN=m
CONFIG_MLX5_CORE=m
@ -661,7 +663,6 @@ CONFIG_NFSD_V3_ACL=y
CONFIG_NFSD_V4=y
CONFIG_NFSD_V4_SECURITY_LABEL=y
CONFIG_CIFS=m
CONFIG_CIFS_WEAK_PW_HASH=y
CONFIG_CIFS_UPCALL=y
CONFIG_CIFS_XATTR=y
CONFIG_CIFS_POSIX=y
@ -720,6 +721,8 @@ CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
CONFIG_CRYPTO_CRC32=m
CONFIG_CRYPTO_BLAKE2S=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_SHA3=m
@ -774,7 +777,6 @@ CONFIG_RANDOM32_SELFTEST=y
CONFIG_DMA_CMA=y
CONFIG_CMA_SIZE_MBYTES=0
CONFIG_DMA_API_DEBUG=y
CONFIG_STRING_SELFTEST=y
CONFIG_PRINTK_TIME=y
CONFIG_DYNAMIC_DEBUG=y
CONFIG_DEBUG_INFO=y
@ -853,12 +855,12 @@ CONFIG_FAIL_FUNCTION=y
CONFIG_FAULT_INJECTION_STACKTRACE_FILTER=y
CONFIG_LKDTM=m
CONFIG_TEST_MIN_HEAP=y
CONFIG_TEST_SORT=y
CONFIG_KPROBES_SANITY_TEST=y
CONFIG_RBTREE_TEST=y
CONFIG_INTERVAL_TREE_TEST=m
CONFIG_PERCPU_TEST=m
CONFIG_ATOMIC64_SELFTEST=y
CONFIG_STRING_SELFTEST=y
CONFIG_TEST_BITOPS=m
CONFIG_TEST_BPF=m
CONFIG_TEST_LIVEPATCH=m

5
arch/s390/configs/defconfig
View file

@ -8,6 +8,7 @@ CONFIG_BPF_SYSCALL=y
CONFIG_BPF_JIT=y
CONFIG_BPF_JIT_ALWAYS_ON=y
CONFIG_BPF_LSM=y
CONFIG_SCHED_CORE=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_TASKSTATS=y
@ -494,6 +495,7 @@ CONFIG_NLMON=m
# CONFIG_NET_VENDOR_HUAWEI is not set
# CONFIG_NET_VENDOR_INTEL is not set
# CONFIG_NET_VENDOR_MICROSOFT is not set
# CONFIG_NET_VENDOR_LITEX is not set
# CONFIG_NET_VENDOR_MARVELL is not set
CONFIG_MLX4_EN=m
CONFIG_MLX5_CORE=m
@ -648,7 +650,6 @@ CONFIG_NFSD_V3_ACL=y
CONFIG_NFSD_V4=y
CONFIG_NFSD_V4_SECURITY_LABEL=y
CONFIG_CIFS=m
CONFIG_CIFS_WEAK_PW_HASH=y
CONFIG_CIFS_UPCALL=y
CONFIG_CIFS_XATTR=y
CONFIG_CIFS_POSIX=y
@ -708,6 +709,8 @@ CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
CONFIG_CRYPTO_CRC32=m
CONFIG_CRYPTO_BLAKE2S=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_SHA3=m

4
arch/s390/pci/pci_mmio.c
View file

@ -159,7 +159,7 @@ SYSCALL_DEFINE3(s390_pci_mmio_write, unsigned long, mmio_addr,
mmap_read_lock(current->mm);
ret = -EINVAL;
vma = find_vma(current->mm, mmio_addr);
vma = vma_lookup(current->mm, mmio_addr);
if (!vma)
goto out_unlock_mmap;
if (!(vma->vm_flags & (VM_IO | VM_PFNMAP)))
@ -298,7 +298,7 @@ SYSCALL_DEFINE3(s390_pci_mmio_read, unsigned long, mmio_addr,
mmap_read_lock(current->mm);
ret = -EINVAL;
vma = find_vma(current->mm, mmio_addr);
vma = vma_lookup(current->mm, mmio_addr);
if (!vma)
goto out_unlock_mmap;
if (!(vma->vm_flags & (VM_IO | VM_PFNMAP)))

3
drivers/s390/char/sclp_early.c
View file

@ -45,13 +45,14 @@ static void __init sclp_early_facilities_detect(void)
sclp.has_gisaf = !!(sccb->fac118 & 0x08);
sclp.has_hvs = !!(sccb->fac119 & 0x80);
sclp.has_kss = !!(sccb->fac98 & 0x01);
sclp.has_sipl = !!(sccb->cbl & 0x4000);
if (sccb->fac85 & 0x02)
S390_lowcore.machine_flags |= MACHINE_FLAG_ESOP;
if (sccb->fac91 & 0x40)
S390_lowcore.machine_flags |= MACHINE_FLAG_TLB_GUEST;
if (sccb->cpuoff > 134)
sclp.has_diag318 = !!(sccb->byte_134 & 0x80);
if (sccb->cpuoff > 137)
sclp.has_sipl = !!(sccb->cbl & 0x4000);
sclp.rnmax = sccb->rnmax ? sccb->rnmax : sccb->rnmax2;
sclp.rzm = sccb->rnsize ? sccb->rnsize : sccb->rnsize2;
sclp.rzm <<= 20;

3
drivers/s390/crypto/ap_bus.c
View file

@ -213,7 +213,6 @@ static inline int ap_fetch_qci_info(struct ap_config_info *info)
* ap_init_qci_info(): Allocate and query qci config info.
* Does also update the static variables ap_max_domain_id
* and ap_max_adapter_id if this info is available.
*/
static void __init ap_init_qci_info(void)
{
@ -439,6 +438,7 @@ static enum hrtimer_restart ap_poll_timeout(struct hrtimer *unused)
/**
* ap_interrupt_handler() - Schedule ap_tasklet on interrupt
* @airq: pointer to adapter interrupt descriptor
* @floating: ignored
*/
static void ap_interrupt_handler(struct airq_struct *airq, bool floating)
{
@ -1786,6 +1786,7 @@ static inline void ap_scan_adapter(int ap)
/**
* ap_scan_bus(): Scan the AP bus for new devices
* Runs periodically, workqueue timer (ap_config_time)
* @unused: Unused pointer.
*/
static void ap_scan_bus(struct work_struct *unused)
{

4
drivers/s390/crypto/ap_queue.c
View file

@ -20,7 +20,7 @@ static void __ap_flush_queue(struct ap_queue *aq);
/**
* ap_queue_enable_irq(): Enable interrupt support on this AP queue.
* @qid: The AP queue number
* @aq: The AP queue
* @ind: the notification indicator byte
*
* Enables interruption on AP queue via ap_aqic(). Based on the return
@ -311,7 +311,7 @@ static enum ap_sm_wait ap_sm_read_write(struct ap_queue *aq)
/**
* ap_sm_reset(): Reset an AP queue.
* @qid: The AP queue number
* @aq: The AP queue
*
* Submit the Reset command to an AP queue.
*/