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Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

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Pull misc filesystem fixes from Jan Kara:
 "Several ACL related fixes for ext2, reiserfs, and hfsplus.

  And also one minor isofs cleanup"

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  hfsplus: Don't clear SGID when inheriting ACLs
  isofs: Fix off-by-one in 'session' mount option parsing
  reiserfs: preserve i_mode if __reiserfs_set_acl() fails
  ext2: preserve i_mode if ext2_set_acl() fails
  ext2: Don't clear SGID when inheriting ACLs
  reiserfs: Don't clear SGID when inheriting ACLs
This commit is contained in:
Linus Torvalds 2017-07-20 10:41:12 -07:00
commit 791f2df39b
4 changed files with 64 additions and 34 deletions
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43
fs/ext2/acl.c
View file

@ -175,11 +175,8 @@ ext2_get_acl(struct inode *inode, int type)
return acl;
}
/*
* inode->i_mutex: down
*/
int
ext2_set_acl(struct inode *inode, struct posix_acl *acl, int type)
static int
__ext2_set_acl(struct inode *inode, struct posix_acl *acl, int type)
{
int name_index;
void *value = NULL;
@ -189,13 +186,6 @@ ext2_set_acl(struct inode *inode, struct posix_acl *acl, int type)
switch(type) {
case ACL_TYPE_ACCESS:
name_index = EXT2_XATTR_INDEX_POSIX_ACL_ACCESS;
if (acl) {
error = posix_acl_update_mode(inode, &inode->i_mode, &acl);
if (error)
return error;
inode->i_ctime = current_time(inode);
mark_inode_dirty(inode);
}
break;
case ACL_TYPE_DEFAULT:
@ -221,6 +211,31 @@ ext2_set_acl(struct inode *inode, struct posix_acl *acl, int type)
return error;
}
/*
* inode->i_mutex: down
*/
int
ext2_set_acl(struct inode *inode, struct posix_acl *acl, int type)
{
int error;
int update_mode = 0;
umode_t mode = inode->i_mode;
if (type == ACL_TYPE_ACCESS && acl) {
error = posix_acl_update_mode(inode, &mode, &acl);
if (error)
return error;
update_mode = 1;
}
error = __ext2_set_acl(inode, acl, type);
if (!error && update_mode) {
inode->i_mode = mode;
inode->i_ctime = current_time(inode);
mark_inode_dirty(inode);
}
return error;
}
/*
* Initialize the ACLs of a new inode. Called from ext2_new_inode.
*
@ -238,12 +253,12 @@ ext2_init_acl(struct inode *inode, struct inode *dir)
return error;
if (default_acl) {
error = ext2_set_acl(inode, default_acl, ACL_TYPE_DEFAULT);
error = __ext2_set_acl(inode, default_acl, ACL_TYPE_DEFAULT);
posix_acl_release(default_acl);
}
if (acl) {
if (!error)
error = ext2_set_acl(inode, acl, ACL_TYPE_ACCESS);
error = __ext2_set_acl(inode, acl, ACL_TYPE_ACCESS);
posix_acl_release(acl);
}
return error;

30
fs/hfsplus/posix_acl.c
View file

@ -51,8 +51,8 @@ struct posix_acl *hfsplus_get_posix_acl(struct inode *inode, int type)
return acl;
}
int hfsplus_set_posix_acl(struct inode *inode, struct posix_acl *acl,
int type)
static int __hfsplus_set_posix_acl(struct inode *inode, struct posix_acl *acl,
int type)
{
int err;
char *xattr_name;
@ -64,12 +64,6 @@ int hfsplus_set_posix_acl(struct inode *inode, struct posix_acl *acl,
switch (type) {
case ACL_TYPE_ACCESS:
xattr_name = XATTR_NAME_POSIX_ACL_ACCESS;
if (acl) {
err = posix_acl_update_mode(inode, &inode->i_mode, &acl);
if (err)
return err;
}
err = 0;
break;
case ACL_TYPE_DEFAULT:
@ -105,6 +99,18 @@ end_set_acl:
return err;
}
int hfsplus_set_posix_acl(struct inode *inode, struct posix_acl *acl, int type)
{
int err;
if (type == ACL_TYPE_ACCESS && acl) {
err = posix_acl_update_mode(inode, &inode->i_mode, &acl);
if (err)
return err;
}
return __hfsplus_set_posix_acl(inode, acl, type);
}
int hfsplus_init_posix_acl(struct inode *inode, struct inode *dir)
{
int err = 0;
@ -122,15 +128,15 @@ int hfsplus_init_posix_acl(struct inode *inode, struct inode *dir)
return err;
if (default_acl) {
err = hfsplus_set_posix_acl(inode, default_acl,
ACL_TYPE_DEFAULT);
err = __hfsplus_set_posix_acl(inode, default_acl,
ACL_TYPE_DEFAULT);
posix_acl_release(default_acl);
}
if (acl) {
if (!err)
err = hfsplus_set_posix_acl(inode, acl,
ACL_TYPE_ACCESS);
err = __hfsplus_set_posix_acl(inode, acl,
ACL_TYPE_ACCESS);
posix_acl_release(acl);
}
return err;

8
fs/isofs/inode.c
View file

@ -410,7 +410,11 @@ static int parse_options(char *options, struct iso9660_options *popt)
if (match_int(&args[0], &option))
return 0;
n = option;
if (n > 99)
/*
* Track numbers are supposed to be in range 1-99, the
* mount option starts indexing at 0.
*/
if (n >= 99)
return 0;
popt->session = n + 1;
break;
@ -543,7 +547,7 @@ static unsigned int isofs_get_last_session(struct super_block *sb, s32 session)
vol_desc_start=0;
ms_info.addr_format=CDROM_LBA;
if(session >= 0 && session <= 99) {
if (session > 0) {
struct cdrom_tocentry Te;
Te.cdte_track=session;
Te.cdte_format=CDROM_LBA;

17
fs/reiserfs/xattr_acl.c
View file

@ -23,7 +23,8 @@ reiserfs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
struct reiserfs_transaction_handle th;
size_t jcreate_blocks;
int size = acl ? posix_acl_xattr_size(acl->a_count) : 0;
int update_mode = 0;
umode_t mode = inode->i_mode;
/*
* Pessimism: We can't assume that anything from the xattr root up
@ -37,7 +38,16 @@ reiserfs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
error = journal_begin(&th, inode->i_sb, jcreate_blocks);
reiserfs_write_unlock(inode->i_sb);
if (error == 0) {
if (type == ACL_TYPE_ACCESS && acl) {
error = posix_acl_update_mode(inode, &mode, &acl);
if (error)
goto unlock;
update_mode = 1;
}
error = __reiserfs_set_acl(&th, inode, type, acl);
if (!error && update_mode)
inode->i_mode = mode;
unlock:
reiserfs_write_lock(inode->i_sb);
error2 = journal_end(&th);
reiserfs_write_unlock(inode->i_sb);
@ -241,11 +251,6 @@ __reiserfs_set_acl(struct reiserfs_transaction_handle *th, struct inode *inode,
switch (type) {
case ACL_TYPE_ACCESS:
name = XATTR_NAME_POSIX_ACL_ACCESS;
if (acl) {
error = posix_acl_update_mode(inode, &inode->i_mode, &acl);
if (error)
return error;
}
break;
case ACL_TYPE_DEFAULT:
name = XATTR_NAME_POSIX_ACL_DEFAULT;