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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-11 10:01:41 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-11 10:01:41 -0700 |
| commit | 3296ca27f50ecbd71db1d808c7a72d311027f919 (patch) | |
| tree | 833eaa58b2013bda86d4bd95faf6efad7a2d5ca4 /fs/proc/base.c | |
| parent | e893123c7378192c094747dadec326b7c000c190 (diff) | |
| parent | 73fbad283cfbbcf02939bdbda31fc4a30e729cca (diff) | |
| download | kernel_goldelico_gta04-3296ca27f50ecbd71db1d808c7a72d311027f919.zip kernel_goldelico_gta04-3296ca27f50ecbd71db1d808c7a72d311027f919.tar.gz kernel_goldelico_gta04-3296ca27f50ecbd71db1d808c7a72d311027f919.tar.bz2 | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6: (44 commits)
nommu: Provide mmap_min_addr definition.
TOMOYO: Add description of lists and structures.
TOMOYO: Remove unused field.
integrity: ima audit dentry_open failure
TOMOYO: Remove unused parameter.
security: use mmap_min_addr indepedently of security models
TOMOYO: Simplify policy reader.
TOMOYO: Remove redundant markers.
SELinux: define audit permissions for audit tree netlink messages
TOMOYO: Remove unused mutex.
tomoyo: avoid get+put of task_struct
smack: Remove redundant initialization.
integrity: nfsd imbalance bug fix
rootplug: Remove redundant initialization.
smack: do not beyond ARRAY_SIZE of data
integrity: move ima_counts_get
integrity: path_check update
IMA: Add __init notation to ima functions
IMA: Minimal IMA policy and boot param for TCB IMA policy
selinux: remove obsolete read buffer limit from sel_read_bool
...
Diffstat (limited to 'fs/proc/base.c')
| -rw-r--r-- | fs/proc/base.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/proc/base.c b/fs/proc/base.c index 3326bbf..1539e63 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -2128,9 +2128,15 @@ static ssize_t proc_pid_attr_write(struct file * file, const char __user * buf, if (copy_from_user(page, buf, count)) goto out_free; + /* Guard against adverse ptrace interaction */ + length = mutex_lock_interruptible(&task->cred_guard_mutex); + if (length < 0) + goto out_free; + length = security_setprocattr(task, (char*)file->f_path.dentry->d_name.name, (void*)page, count); + mutex_unlock(&task->cred_guard_mutex); out_free: free_page((unsigned long) page); out: |