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yaml
---
r: 139703
b: refs/heads/master
c: ab4ad55
h: refs/heads/master
i:
  139701: 0a7a692
  139699: f855638
  139695: 8c9d6a4
v: v3
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Mike Frysinger authored and Linus Torvalds committed Apr 3, 2009
1 parent ef550f2 commit 71c1c10
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Showing 2 changed files with 18 additions and 9 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 11dea1900931ac73184b2f5163a13d24a4e572ea
refs/heads/master: ab4ad55512e95b68ca3e25516068e18874f89252
25 changes: 17 additions & 8 deletions trunk/fs/binfmt_elf_fdpic.c
Original file line number Diff line number Diff line change
Expand Up @@ -972,9 +972,12 @@ static int elf_fdpic_map_file_constdisp_on_uclinux(
params->elfhdr_addr = seg->addr;

/* clear any space allocated but not loaded */
if (phdr->p_filesz < phdr->p_memsz)
clear_user((void *) (seg->addr + phdr->p_filesz),
phdr->p_memsz - phdr->p_filesz);
if (phdr->p_filesz < phdr->p_memsz) {
ret = clear_user((void *) (seg->addr + phdr->p_filesz),
phdr->p_memsz - phdr->p_filesz);
if (ret)
return ret;
}

if (mm) {
if (phdr->p_flags & PF_X) {
Expand Down Expand Up @@ -1014,7 +1017,7 @@ static int elf_fdpic_map_file_by_direct_mmap(struct elf_fdpic_params *params,
struct elf32_fdpic_loadseg *seg;
struct elf32_phdr *phdr;
unsigned long load_addr, delta_vaddr;
int loop, dvset;
int loop, dvset, ret;

load_addr = params->load_addr;
delta_vaddr = 0;
Expand Down Expand Up @@ -1114,7 +1117,9 @@ static int elf_fdpic_map_file_by_direct_mmap(struct elf_fdpic_params *params,
* PT_LOAD */
if (prot & PROT_WRITE && disp > 0) {
kdebug("clear[%d] ad=%lx sz=%lx", loop, maddr, disp);
clear_user((void __user *) maddr, disp);
ret = clear_user((void __user *) maddr, disp);
if (ret)
return ret;
maddr += disp;
}

Expand Down Expand Up @@ -1149,15 +1154,19 @@ static int elf_fdpic_map_file_by_direct_mmap(struct elf_fdpic_params *params,
if (prot & PROT_WRITE && excess1 > 0) {
kdebug("clear[%d] ad=%lx sz=%lx",
loop, maddr + phdr->p_filesz, excess1);
clear_user((void __user *) maddr + phdr->p_filesz,
excess1);
ret = clear_user((void __user *) maddr + phdr->p_filesz,
excess1);
if (ret)
return ret;
}

#else
if (excess > 0) {
kdebug("clear[%d] ad=%lx sz=%lx",
loop, maddr + phdr->p_filesz, excess);
clear_user((void *) maddr + phdr->p_filesz, excess);
ret = clear_user((void *) maddr + phdr->p_filesz, excess);
if (ret)
return ret;
}
#endif

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