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Commit 7696e0c3 authored by Al Viro's avatar Al Viro
Browse files

binfmt_flat: use vm_munmap, we are missing ->mmap_sem there 



Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 5a5e4c2e

fs/binfmt_flat.c

+4 −4
Original line number Diff line number Diff line
@@ -562,7 +562,7 @@ static int load_flat_file(struct linux_binprm * bprm, 
				realdatastart = (unsigned long) -ENOMEM;

			printk("Unable to allocate RAM for process data, errno %d\n",

					(int)-realdatastart);

			do_munmap(current->mm, textpos, text_len);

			vm_munmap(textpos, text_len);

			ret = realdatastart;

			goto err;

		}
@@ -586,8 +586,8 @@ static int load_flat_file(struct linux_binprm * bprm, 
		}

		if (IS_ERR_VALUE(result)) {

			printk("Unable to read data+bss, errno %d\n", (int)-result);

			do_munmap(current->mm, textpos, text_len);

			do_munmap(current->mm, realdatastart, len);

			vm_munmap(textpos, text_len);

			vm_munmap(realdatastart, len);

			ret = result;

			goto err;

		}
@@ -654,7 +654,7 @@ static int load_flat_file(struct linux_binprm * bprm, 
		}

		if (IS_ERR_VALUE(result)) {

			printk("Unable to read code+data+bss, errno %d\n",(int)-result);

			do_munmap(current->mm, textpos, text_len + data_len + extra +

			vm_munmap(textpos, text_len + data_len + extra +

				MAX_SHARED_LIBS * sizeof(unsigned long));

			ret = result;

			goto err;