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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-23 04:02:39 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-23 04:02:39 +0200 |
| commit | bbd9d6f7fbb0305c9a592bf05a32e87eb364a4ff (patch) | |
| tree | 12b2bb4202b05f6ae6a43c6ce830a0472043dbe5 /fs/exec.c | |
| parent | Merge branch 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kerne... (diff) | |
| parent | vfs: use ERR_CAST for err-ptr tossing in lookup_instantiate_filp (diff) | |
| download | linux-bbd9d6f7fbb0305c9a592bf05a32e87eb364a4ff.tar.xz linux-bbd9d6f7fbb0305c9a592bf05a32e87eb364a4ff.zip | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (107 commits)
vfs: use ERR_CAST for err-ptr tossing in lookup_instantiate_filp
isofs: Remove global fs lock
jffs2: fix IN_DELETE_SELF on overwriting rename() killing a directory
fix IN_DELETE_SELF on overwriting rename() on ramfs et.al.
mm/truncate.c: fix build for CONFIG_BLOCK not enabled
fs:update the NOTE of the file_operations structure
Remove dead code in dget_parent()
AFS: Fix silly characters in a comment
switch d_add_ci() to d_splice_alias() in "found negative" case as well
simplify gfs2_lookup()
jfs_lookup(): don't bother with . or ..
get rid of useless dget_parent() in btrfs rename() and link()
get rid of useless dget_parent() in fs/btrfs/ioctl.c
fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers
drivers: fix up various ->llseek() implementations
fs: handle SEEK_HOLE/SEEK_DATA properly in all fs's that define their own llseek
Ext4: handle SEEK_HOLE/SEEK_DATA generically
Btrfs: implement our own ->llseek
fs: add SEEK_HOLE and SEEK_DATA flags
reiserfs: make reiserfs default to barrier=flush
...
Fix up trivial conflicts in fs/xfs/linux-2.6/xfs_super.c due to the new
shrinker callout for the inode cache, that clashed with the xfs code to
start the periodic workers later.
Diffstat (limited to 'fs/exec.c')
| -rw-r--r-- | fs/exec.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/fs/exec.c b/fs/exec.c index d9576f261815..842d5700c155 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -1114,6 +1114,13 @@ out: } EXPORT_SYMBOL(flush_old_exec); +void would_dump(struct linux_binprm *bprm, struct file *file) +{ + if (inode_permission(file->f_path.dentry->d_inode, MAY_READ) < 0) + bprm->interp_flags |= BINPRM_FLAGS_ENFORCE_NONDUMP; +} +EXPORT_SYMBOL(would_dump); + void setup_new_exec(struct linux_binprm * bprm) { int i, ch; @@ -1153,9 +1160,10 @@ void setup_new_exec(struct linux_binprm * bprm) if (bprm->cred->uid != current_euid() || bprm->cred->gid != current_egid()) { current->pdeath_signal = 0; - } else if (file_permission(bprm->file, MAY_READ) || - bprm->interp_flags & BINPRM_FLAGS_ENFORCE_NONDUMP) { - set_dumpable(current->mm, suid_dumpable); + } else { + would_dump(bprm, bprm->file); + if (bprm->interp_flags & BINPRM_FLAGS_ENFORCE_NONDUMP) + set_dumpable(current->mm, suid_dumpable); } /* |