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authorTakashi Iwai <tiwai@suse.de>2017-08-02 17:11:45 +0200
committerTakashi Iwai <tiwai@suse.de>2017-08-02 17:11:45 +0200
commit5ef26e966d3fd105ad9a7e8e8f6d12c7fbd4c03d (patch)
treedd5c2ce3daab2e398ab8c0fb852587b647131568 /fs/binfmt_flat.c
parent3f3c371421e601fa93b6cb7fb52da9ad59ec90b4 (diff)
parent60668a2dcafcf8aad0860f5a5c93eb2d7438052e (diff)
Merge tag 'asoc-fix-v4.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v4.13 Quite a few fixes here that have been sent since the merge window, the biggest one is the fix from Tony for some confusion with the device property API which was causing issues with the of-graph card. This is fixed with some changes in the graph API itself as it seemed very likely to be error prone.
Diffstat (limited to 'fs/binfmt_flat.c')
-rw-r--r--fs/binfmt_flat.c41
1 files changed, 23 insertions, 18 deletions
diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c
index 2edcefc0a294..a1e6860b6f46 100644
--- a/fs/binfmt_flat.c
+++ b/fs/binfmt_flat.c
@@ -422,9 +422,9 @@ static int load_flat_file(struct linux_binprm *bprm,
{
struct flat_hdr *hdr;
unsigned long textpos, datapos, realdatastart;
- unsigned long text_len, data_len, bss_len, stack_len, full_data, flags;
+ u32 text_len, data_len, bss_len, stack_len, full_data, flags;
unsigned long len, memp, memp_size, extra, rlim;
- unsigned long __user *reloc, *rp;
+ u32 __user *reloc, *rp;
struct inode *inode;
int i, rev, relocs;
loff_t fpos;
@@ -574,7 +574,7 @@ static int load_flat_file(struct linux_binprm *bprm,
MAX_SHARED_LIBS * sizeof(unsigned long),
FLAT_DATA_ALIGN);
- pr_debug("Allocated data+bss+stack (%ld bytes): %lx\n",
+ pr_debug("Allocated data+bss+stack (%u bytes): %lx\n",
data_len + bss_len + stack_len, datapos);
fpos = ntohl(hdr->data_start);
@@ -596,13 +596,13 @@ static int load_flat_file(struct linux_binprm *bprm,
goto err;
}
- reloc = (unsigned long __user *)
+ reloc = (u32 __user *)
(datapos + (ntohl(hdr->reloc_start) - text_len));
memp = realdatastart;
memp_size = len;
} else {
- len = text_len + data_len + extra + MAX_SHARED_LIBS * sizeof(unsigned long);
+ len = text_len + data_len + extra + MAX_SHARED_LIBS * sizeof(u32);
len = PAGE_ALIGN(len);
textpos = vm_mmap(NULL, 0, len,
PROT_READ | PROT_EXEC | PROT_WRITE, MAP_PRIVATE, 0);
@@ -618,10 +618,10 @@ static int load_flat_file(struct linux_binprm *bprm,
realdatastart = textpos + ntohl(hdr->data_start);
datapos = ALIGN(realdatastart +
- MAX_SHARED_LIBS * sizeof(unsigned long),
+ MAX_SHARED_LIBS * sizeof(u32),
FLAT_DATA_ALIGN);
- reloc = (unsigned long __user *)
+ reloc = (u32 __user *)
(datapos + (ntohl(hdr->reloc_start) - text_len));
memp = textpos;
memp_size = len;
@@ -694,7 +694,7 @@ static int load_flat_file(struct linux_binprm *bprm,
ret = result;
pr_err("Unable to read code+data+bss, errno %d\n", ret);
vm_munmap(textpos, text_len + data_len + extra +
- MAX_SHARED_LIBS * sizeof(unsigned long));
+ MAX_SHARED_LIBS * sizeof(u32));
goto err;
}
}
@@ -754,8 +754,8 @@ static int load_flat_file(struct linux_binprm *bprm,
* image.
*/
if (flags & FLAT_FLAG_GOTPIC) {
- for (rp = (unsigned long __user *)datapos; ; rp++) {
- unsigned long addr, rp_val;
+ for (rp = (u32 __user *)datapos; ; rp++) {
+ u32 addr, rp_val;
if (get_user(rp_val, rp))
return -EFAULT;
if (rp_val == 0xffffffff)
@@ -784,9 +784,9 @@ static int load_flat_file(struct linux_binprm *bprm,
* __start to address 4 so that is okay).
*/
if (rev > OLD_FLAT_VERSION) {
- unsigned long __maybe_unused persistent = 0;
+ u32 __maybe_unused persistent = 0;
for (i = 0; i < relocs; i++) {
- unsigned long addr, relval;
+ u32 addr, relval;
/*
* Get the address of the pointer to be
@@ -799,15 +799,18 @@ static int load_flat_file(struct linux_binprm *bprm,
if (flat_set_persistent(relval, &persistent))
continue;
addr = flat_get_relocate_addr(relval);
- rp = (unsigned long __user *)calc_reloc(addr, libinfo, id, 1);
- if (rp == (unsigned long __user *)RELOC_FAILED) {
+ rp = (u32 __user *)calc_reloc(addr, libinfo, id, 1);
+ if (rp == (u32 __user *)RELOC_FAILED) {
ret = -ENOEXEC;
goto err;
}
/* Get the pointer's value. */
- addr = flat_get_addr_from_rp(rp, relval, flags,
- &persistent);
+ ret = flat_get_addr_from_rp(rp, relval, flags,
+ &addr, &persistent);
+ if (unlikely(ret))
+ goto err;
+
if (addr != 0) {
/*
* Do the relocation. PIC relocs in the data section are
@@ -822,12 +825,14 @@ static int load_flat_file(struct linux_binprm *bprm,
}
/* Write back the relocated pointer. */
- flat_put_addr_at_rp(rp, addr, relval);
+ ret = flat_put_addr_at_rp(rp, addr, relval);
+ if (unlikely(ret))
+ goto err;
}
}
} else {
for (i = 0; i < relocs; i++) {
- unsigned long relval;
+ u32 relval;
if (get_user(relval, reloc + i))
return -EFAULT;
relval = ntohl(relval);