diff options
author | Amit Pundir <amit.pundir@linaro.org> | 2018-10-03 13:37:01 +0530 |
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committer | Amit Pundir <amit.pundir@linaro.org> | 2018-10-03 15:00:28 +0530 |
commit | c8f435d8fdd4388de3d7d5c21c19b69ba2dc8fc9 (patch) | |
tree | e66a01ac37972e66e21083e91adee1dfcf5003ba /arch/alpha | |
parent | d36d92bca7f25cd3376fd5710cfe80571d0b7b94 (diff) | |
parent | c6ee9e74b237b01d0a4988de41acbf569fdb8974 (diff) |
Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android
* linux-linaro-lsk-v4.4: (783 commits)
Linux 4.4.159
iw_cxgb4: only allow 1 flush on user qps
HID: sony: Support DS4 dongle
HID: sony: Update device ids
arm64: Add trace_hardirqs_off annotation in ret_to_user
ext4: don't mark mmp buffer head dirty
ext4: fix online resizing for bigalloc file systems with a 1k block size
ext4: fix online resize's handling of a too-small final block group
ext4: recalucate superblock checksum after updating free blocks/inodes
ext4: avoid divide by zero fault when deleting corrupted inline directories
tty: vt_ioctl: fix potential Spectre v1
drm/nouveau/drm/nouveau: Use pm_runtime_get_noresume() in connector_detect()
ocfs2: fix ocfs2 read block panic
scsi: target: iscsi: Use hex2bin instead of a re-implementation
neighbour: confirm neigh entries when ARP packet is received
net: hp100: fix always-true check for link up state
net/appletalk: fix minor pointer leak to userspace in SIOCFINDIPDDPRT
ipv6: fix possible use-after-free in ip6_xmit()
gso_segment: Reset skb->mac_len after modifying network header
mm: shmem.c: Correctly annotate new inodes for lockdep
...
Conflicts:
Makefile
fs/squashfs/block.c
include/uapi/linux/prctl.h
kernel/fork.c
kernel/sys.c
Trivial merge conflicts in above files. Resolved by rebasing
corresponding AOSP changes.
arch/arm64/mm/init.c
Pick the changes from upstream version of AOSP patch
"arm64: check for upper PAGE_SHIFT bits in pfn_valid" instead.
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Diffstat (limited to 'arch/alpha')
-rw-r--r-- | arch/alpha/kernel/osf_sys.c | 64 |
1 files changed, 28 insertions, 36 deletions
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c index 63f06a2b1f7f..bbc7cb9faa01 100644 --- a/arch/alpha/kernel/osf_sys.c +++ b/arch/alpha/kernel/osf_sys.c @@ -526,24 +526,19 @@ SYSCALL_DEFINE4(osf_mount, unsigned long, typenr, const char __user *, path, SYSCALL_DEFINE1(osf_utsname, char __user *, name) { int error; + char tmp[5 * 32]; down_read(&uts_sem); - error = -EFAULT; - if (copy_to_user(name + 0, utsname()->sysname, 32)) - goto out; - if (copy_to_user(name + 32, utsname()->nodename, 32)) - goto out; - if (copy_to_user(name + 64, utsname()->release, 32)) - goto out; - if (copy_to_user(name + 96, utsname()->version, 32)) - goto out; - if (copy_to_user(name + 128, utsname()->machine, 32)) - goto out; + memcpy(tmp + 0 * 32, utsname()->sysname, 32); + memcpy(tmp + 1 * 32, utsname()->nodename, 32); + memcpy(tmp + 2 * 32, utsname()->release, 32); + memcpy(tmp + 3 * 32, utsname()->version, 32); + memcpy(tmp + 4 * 32, utsname()->machine, 32); + up_read(&uts_sem); - error = 0; - out: - up_read(&uts_sem); - return error; + if (copy_to_user(name, tmp, sizeof(tmp))) + return -EFAULT; + return 0; } SYSCALL_DEFINE0(getpagesize) @@ -561,24 +556,22 @@ SYSCALL_DEFINE0(getdtablesize) */ SYSCALL_DEFINE2(osf_getdomainname, char __user *, name, int, namelen) { - unsigned len; - int i; + int len, err = 0; + char *kname; + char tmp[32]; - if (!access_ok(VERIFY_WRITE, name, namelen)) - return -EFAULT; - - len = namelen; - if (len > 32) - len = 32; + if (namelen < 0 || namelen > 32) + namelen = 32; down_read(&uts_sem); - for (i = 0; i < len; ++i) { - __put_user(utsname()->domainname[i], name + i); - if (utsname()->domainname[i] == '\0') - break; - } + kname = utsname()->domainname; + len = strnlen(kname, namelen); + len = min(len + 1, namelen); + memcpy(tmp, kname, len); up_read(&uts_sem); + if (copy_to_user(name, tmp, len)) + return -EFAULT; return 0; } @@ -741,13 +734,14 @@ SYSCALL_DEFINE3(osf_sysinfo, int, command, char __user *, buf, long, count) }; unsigned long offset; const char *res; - long len, err = -EINVAL; + long len; + char tmp[__NEW_UTS_LEN + 1]; offset = command-1; if (offset >= ARRAY_SIZE(sysinfo_table)) { /* Digital UNIX has a few unpublished interfaces here */ printk("sysinfo(%d)", command); - goto out; + return -EINVAL; } down_read(&uts_sem); @@ -755,13 +749,11 @@ SYSCALL_DEFINE3(osf_sysinfo, int, command, char __user *, buf, long, count) len = strlen(res)+1; if ((unsigned long)len > (unsigned long)count) len = count; - if (copy_to_user(buf, res, len)) - err = -EFAULT; - else - err = 0; + memcpy(tmp, res, len); up_read(&uts_sem); - out: - return err; + if (copy_to_user(buf, tmp, len)) + return -EFAULT; + return 0; } SYSCALL_DEFINE5(osf_getsysinfo, unsigned long, op, void __user *, buffer, |