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2016-11-21apparmor: fix change_hat not finding hat after policy replacementJohn Johansen
After a policy replacement, the task cred may be out of date and need to be updated. However change_hat is using the stale profiles from the out of date cred resulting in either: a stale profile being applied or, incorrect failure when searching for a hat profile as it has been migrated to the new parent profile. Fixes: 01e2b670aa898a39259bc85c78e3d74820f4d3b6 (failure to find hat) Fixes: 898127c34ec03291c86f4ff3856d79e9e18952bc (stale policy being applied) Bugzilla: https://bugzilla.suse.com/show_bug.cgi?id=1000287 Cc: stable@vger.kernel.org Signed-off-by: John Johansen <john.johansen@canonical.com> Signed-off-by: James Morris <james.l.morris@oracle.com>
2016-09-27fs: Replace CURRENT_TIME with current_time() for inode timestampsDeepa Dinamani
CURRENT_TIME macro is not appropriate for filesystems as it doesn't use the right granularity for filesystem timestamps. Use current_time() instead. CURRENT_TIME is also not y2038 safe. This is also in preparation for the patch that transitions vfs timestamps to use 64 bit time and hence make them y2038 safe. As part of the effort current_time() will be extended to do range checks. Hence, it is necessary for all file system timestamps to use current_time(). Also, current_time() will be transitioned along with vfs to be y2038 safe. Note that whenever a single call to current_time() is used to change timestamps in different inodes, it is because they share the same time granularity. Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Felipe Balbi <balbi@kernel.org> Acked-by: Steven Whitehouse <swhiteho@redhat.com> Acked-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Acked-by: David Sterba <dsterba@suse.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-07-27apparmor: fix SECURITY_APPARMOR_HASH_DEFAULT parameter handlingArnd Bergmann
The newly added Kconfig option could never work and just causes a build error when disabled: security/apparmor/lsm.c:675:25: error: 'CONFIG_SECURITY_APPARMOR_HASH_DEFAULT' undeclared here (not in a function) bool aa_g_hash_policy = CONFIG_SECURITY_APPARMOR_HASH_DEFAULT; The problem is that the macro undefined in this case, and we need to use the IS_ENABLED() helper to turn it into a boolean constant. Another minor problem with the original patch is that the option is even offered in sysfs when SECURITY_APPARMOR_HASH is not enabled, so this also hides the option in that case. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: 6059f71f1e94 ("apparmor: add parameter to control whether policy hashing is used") Signed-off-by: John Johansen <john.johansen@canonical.com> Signed-off-by: James Morris <james.l.morris@oracle.com>
2016-07-12apparmor: fix arg_size computation for when setprocattr is null terminatedJohn Johansen
Signed-off-by: John Johansen <john.johansen@canonical.com>
2016-07-12apparmor: fix oops, validate buffer size in apparmor_setprocattr()Vegard Nossum
When proc_pid_attr_write() was changed to use memdup_user apparmor's (interface violating) assumption that the setprocattr buffer was always a single page was violated. The size test is not strictly speaking needed as proc_pid_attr_write() will reject anything larger, but for the sake of robustness we can keep it in. SMACK and SELinux look safe to me, but somebody else should probably have a look just in case. Based on original patch from Vegard Nossum <vegard.nossum@oracle.com> modified for the case that apparmor provides null termination. Fixes: bb646cdb12e75d82258c2f2e7746d5952d3e321a Reported-by: Vegard Nossum <vegard.nossum@oracle.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: John Johansen <john.johansen@canonical.com> Cc: Paul Moore <paul@paul-moore.com> Cc: Stephen Smalley <sds@tycho.nsa.gov> Cc: Eric Paris <eparis@parisplace.org> Cc: Casey Schaufler <casey@schaufler-ca.com> Cc: stable@kernel.org Signed-off-by: John Johansen <john.johansen@canonical.com> Reviewed-by: Tyler Hicks <tyhicks@canonical.com> Signed-off-by: James Morris <james.l.morris@oracle.com>
2016-07-12apparmor: do not expose kernel stackHeinrich Schuchardt
Do not copy uninitalized fields th.td_hilen, th.td_data. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: John Johansen <john.johansen@canonical.com>
2016-07-12apparmor: fix module parameters can be changed after policy is lockedJohn Johansen
the policy_lock parameter is a one way switch that prevents policy from being further modified. Unfortunately some of the module parameters can effectively modify policy by turning off enforcement. split policy_admin_capable into a view check and a full admin check, and update the admin check to test the policy_lock parameter. Signed-off-by: John Johansen <john.johansen@canonical.com>
2016-07-12apparmor: fix oops in profile_unpack() when policy_db is not presentJohn Johansen
BugLink: http://bugs.launchpad.net/bugs/1592547 If unpack_dfa() returns NULL due to the dfa not being present, profile_unpack() is not checking if the dfa is not present (NULL). Signed-off-by: John Johansen <john.johansen@canonical.com>
2016-07-12apparmor: don't check for vmalloc_addr if kvzalloc() failedJohn Johansen
Signed-off-by: John Johansen <john.johansen@canonical.com>
2016-07-12apparmor: add missing id bounds check on dfa verificationJohn Johansen
Signed-off-by: John Johansen <john.johansen@canonical.com>
2016-07-12apparmor: allow SYS_CAP_RESOURCE to be sufficient to prlimit another taskJeff Mahoney
While using AppArmor, SYS_CAP_RESOURCE is insufficient to call prlimit on another task. The only other example of a AppArmor mediating access to another, already running, task (ignoring fork+exec) is ptrace. The AppArmor model for ptrace is that one of the following must be true: 1) The tracer is unconfined 2) The tracer is in complain mode 3) The tracer and tracee are confined by the same profile 4) The tracer is confined but has SYS_CAP_PTRACE 1), 2, and 3) are already true for setrlimit. We can match the ptrace model just by allowing CAP_SYS_RESOURCE. We still test the values of the rlimit since it can always be overridden using a value that means unlimited for a particular resource. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: John Johansen <john.johansen@canonical.com>
2016-07-12apparmor: use list_next_entry instead of list_entry_nextGeliang Tang
list_next_entry has been defined in list.h, so I replace list_entry_next with it. Signed-off-by: Geliang Tang <geliangtang@163.com> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: John Johansen <john.johansen@canonical.com>
2016-07-12apparmor: fix refcount race when finding a child profileJohn Johansen
When finding a child profile via an rcu critical section, the profile may be put and scheduled for deletion after the child is found but before its refcount is incremented. Protect against this by repeating the lookup if the profiles refcount is 0 and is one its way to deletion. Signed-off-by: John Johansen <john.johansen@canonical.com> Acked-by: Seth Arnold <seth.arnold@canonical.com>
2016-07-12apparmor: fix ref count leak when profile sha1 hash is readJohn Johansen
Signed-off-by: John Johansen <john.johansen@canonical.com> Acked-by: Seth Arnold <seth.arnold@canonical.com>
2016-07-12apparmor: check that xindex is in trans_table boundsJohn Johansen
Signed-off-by: John Johansen <john.johansen@canonical.com> Acked-by: Seth Arnold <seth.arnold@canonical.com>
2016-07-12apparmor: ensure the target profile name is always auditedJohn Johansen
The target profile name was not being correctly audited in a few cases because the target variable was not being set and gotos passed the code to set it at apply: Since it is always based on new_profile just drop the target var and conditionally report based on new_profile. Signed-off-by: John Johansen <john.johansen@canonical.com> Acked-by: Seth Arnold <seth.arnold@canonical.com>
2016-07-12apparmor: fix audit full profile hname on successful loadJohn Johansen
Currently logging of a successful profile load only logs the basename of the profile. This can result in confusion when a child profile has the same name as the another profile in the set. Logging the hname will ensure there is no confusion. Signed-off-by: John Johansen <john.johansen@canonical.com> Acked-by: Seth Arnold <seth.arnold@canonical.com>
2016-07-12apparmor: fix log failures for all profiles in a setJohn Johansen
currently only the profile that is causing the failure is logged. This makes it more confusing than necessary about which profiles loaded and which didn't. So make sure to log success and failure messages for all profiles in the set being loaded. Signed-off-by: John Johansen <john.johansen@canonical.com> Acked-by: Seth Arnold <seth.arnold@canonical.com>
2016-07-12apparmor: fix put() parent ref after updating the active refJohn Johansen
Signed-off-by: John Johansen <john.johansen@canonical.com> Acked-by: Seth Arnold <seth.arnold@canonical.com>
2016-07-12apparmor: add parameter to control whether policy hashing is usedJohn Johansen
Signed-off-by: John Johansen <john.johansen@canonical.com> Acked-by: Tyler Hicks <tyhicks@canonical.com> Acked-by: Seth Arnold <seth.arnold@canonical.com>
2016-07-12apparmor: internal paths should be treated as disconnectedJohn Johansen
Internal mounts are not mounted anywhere and as such should be treated as disconnected paths. Signed-off-by: John Johansen <john.johansen@canonical.com> Acked-by: Seth Arnold <seth.arnold@canonical.com>
2016-07-12apparmor: fix disconnected bind mnts reconnectionJohn Johansen
Bind mounts can fail to be properly reconnected when PATH_CONNECT is specified. Ensure that when PATH_CONNECT is specified the path has a root. BugLink: http://bugs.launchpad.net/bugs/1319984 Signed-off-by: John Johansen <john.johansen@canonical.com> Acked-by: Seth Arnold <seth.arnold@canonical.com>
2016-07-12apparmor: fix update the mtime of the profile file on replacementJohn Johansen
Signed-off-by: John Johansen <john.johansen@canonical.com> Acked-by: Seth Arnold <seth.arnold@canonical.com>
2016-07-12apparmor: exec should not be returning ENOENT when it deniesJohn Johansen
The current behavior is confusing as it causes exec failures to report the executable is missing instead of identifying that apparmor caused the failure. Signed-off-by: John Johansen <john.johansen@canonical.com> Acked-by: Seth Arnold <seth.arnold@canonical.com>
2016-07-12apparmor: fix uninitialized lsm_audit memberJohn Johansen
BugLink: http://bugs.launchpad.net/bugs/1268727 The task field in the lsm_audit struct needs to be initialized if a change_hat fails, otherwise the following oops will occur BUG: unable to handle kernel paging request at 0000002fbead7d08 IP: [<ffffffff8171153e>] _raw_spin_lock+0xe/0x50 PGD 1e3f35067 PUD 0 Oops: 0002 [#1] SMP Modules linked in: pppox crc_ccitt p8023 p8022 psnap llc ax25 btrfs raid6_pq xor xfs libcrc32c dm_multipath scsi_dh kvm_amd dcdbas kvm microcode amd64_edac_mod joydev edac_core psmouse edac_mce_amd serio_raw k10temp sp5100_tco i2c_piix4 ipmi_si ipmi_msghandler acpi_power_meter mac_hid lp parport hid_generic usbhid hid pata_acpi mpt2sas ahci raid_class pata_atiixp bnx2 libahci scsi_transport_sas [last unloaded: tipc] CPU: 2 PID: 699 Comm: changehat_twice Tainted: GF O 3.13.0-7-generic #25-Ubuntu Hardware name: Dell Inc. PowerEdge R415/08WNM9, BIOS 1.8.6 12/06/2011 task: ffff8802135c6000 ti: ffff880212986000 task.ti: ffff880212986000 RIP: 0010:[<ffffffff8171153e>] [<ffffffff8171153e>] _raw_spin_lock+0xe/0x50 RSP: 0018:ffff880212987b68 EFLAGS: 00010006 RAX: 0000000000020000 RBX: 0000002fbead7500 RCX: 0000000000000000 RDX: 0000000000000292 RSI: ffff880212987ba8 RDI: 0000002fbead7d08 RBP: ffff880212987b68 R08: 0000000000000246 R09: ffff880216e572a0 R10: ffffffff815fd677 R11: ffffea0008469580 R12: ffffffff8130966f R13: ffff880212987ba8 R14: 0000002fbead7d08 R15: ffff8800d8c6b830 FS: 00002b5e6c84e7c0(0000) GS:ffff880216e40000(0000) knlGS:0000000055731700 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000002fbead7d08 CR3: 000000021270f000 CR4: 00000000000006e0 Stack: ffff880212987b98 ffffffff81075f17 ffffffff8130966f 0000000000000009 0000000000000000 0000000000000000 ffff880212987bd0 ffffffff81075f7c 0000000000000292 ffff880212987c08 ffff8800d8c6b800 0000000000000026 Call Trace: [<ffffffff81075f17>] __lock_task_sighand+0x47/0x80 [<ffffffff8130966f>] ? apparmor_cred_prepare+0x2f/0x50 [<ffffffff81075f7c>] do_send_sig_info+0x2c/0x80 [<ffffffff81075fee>] send_sig_info+0x1e/0x30 [<ffffffff8130242d>] aa_audit+0x13d/0x190 [<ffffffff8130c1dc>] aa_audit_file+0xbc/0x130 [<ffffffff8130966f>] ? apparmor_cred_prepare+0x2f/0x50 [<ffffffff81304cc2>] aa_change_hat+0x202/0x530 [<ffffffff81308fc6>] aa_setprocattr_changehat+0x116/0x1d0 [<ffffffff8130a11d>] apparmor_setprocattr+0x25d/0x300 [<ffffffff812cee56>] security_setprocattr+0x16/0x20 [<ffffffff8121fc87>] proc_pid_attr_write+0x107/0x130 [<ffffffff811b7604>] vfs_write+0xb4/0x1f0 [<ffffffff811b8039>] SyS_write+0x49/0xa0 [<ffffffff8171a1bf>] tracesys+0xe1/0xe6 Signed-off-by: John Johansen <john.johansen@canonical.com> Acked-by: Seth Arnold <seth.arnold@canonical.com>
2016-07-12apparmor: fix replacement bug that adds new child to old parentJohn Johansen
When set atomic replacement is used and the parent is updated before the child, and the child did not exist in the old parent so there is no direct replacement then the new child is incorrectly added to the old parent. This results in the new parent not having the child(ren) that it should and the old parent when being destroyed asserting the following error. AppArmor: policy_destroy: internal error, policy '<profile/name>' still contains profiles Signed-off-by: John Johansen <john.johansen@canonical.com> Acked-by: Seth Arnold <seth.arnold@canonical.com>
2016-07-12apparmor: fix refcount bug in profile replacementJohn Johansen
Signed-off-by: John Johansen <john.johansen@canonical.com> Acked-by: Seth Arnold <seth.arnold@canonical.com>
2016-03-28constify security_path_{link,rename}Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-28apparmor: remove useless checks for NULL ->mntAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-28constify security_path_{mkdir,mknod,symlink}Al Viro
... as well as unix_mknod() and may_o_create() Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-28constify security_path_{unlink,rmdir}Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-28apparmor: constify common_perm_...()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-28apparmor: constify aa_path_link()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-28apparmor: new helper - common_path_perm()Al Viro
was open-coded in several places... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-28constify chmod_common/security_path_chmodAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-28constify chown_common/security_path_chownAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-28apparmor_path_truncate(): path->mnt is never NULLAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-28constify security_path_truncate()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-27[apparmor] constify struct path * in a bunch of helpersAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-10-22apparmor: clarify CRYPTO dependencyArnd Bergmann
The crypto framework can be built as a loadable module, but the apparmor hash code can only be built-in, which then causes a link error: security/built-in.o: In function `aa_calc_profile_hash': integrity_audit.c:(.text+0x21610): undefined reference to `crypto_shash_update' security/built-in.o: In function `init_profile_hash': integrity_audit.c:(.init.text+0xb4c): undefined reference to `crypto_alloc_shash' This changes Apparmor to use 'select CRYPTO' like a lot of other subsystems do. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: John Johansen <john.johansen@canonical.com> Signed-off-by: James Morris <james.l.morris@oracle.com>
2015-07-01Merge tag 'modules-next-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux Pull module updates from Rusty Russell: "Main excitement here is Peter Zijlstra's lockless rbtree optimization to speed module address lookup. He found some abusers of the module lock doing that too. A little bit of parameter work here too; including Dan Streetman's breaking up the big param mutex so writing a parameter can load another module (yeah, really). Unfortunately that broke the usual suspects, !CONFIG_MODULES and !CONFIG_SYSFS, so those fixes were appended too" * tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (26 commits) modules: only use mod->param_lock if CONFIG_MODULES param: fix module param locks when !CONFIG_SYSFS. rcu: merge fix for Convert ACCESS_ONCE() to READ_ONCE() and WRITE_ONCE() module: add per-module param_lock module: make perm const params: suppress unused variable error, warn once just in case code changes. modules: clarify CONFIG_MODULE_COMPRESS help, suggest 'N'. kernel/module.c: avoid ifdefs for sig_enforce declaration kernel/workqueue.c: remove ifdefs over wq_power_efficient kernel/params.c: export param_ops_bool_enable_only kernel/params.c: generalize bool_enable_only kernel/module.c: use generic module param operaters for sig_enforce kernel/params: constify struct kernel_param_ops uses sysfs: tightened sysfs permission checks module: Rework module_addr_{min,max} module: Use __module_address() for module_address_lookup() module: Make the mod_tree stuff conditional on PERF_EVENTS || TRACING module: Optimize __module_address() using a latched RB-tree rbtree: Implement generic latch_tree seqlock: Introduce raw_read_seqcount_latch() ...
2015-05-28kernel/params: constify struct kernel_param_ops usesLuis R. Rodriguez
Most code already uses consts for the struct kernel_param_ops, sweep the kernel for the last offending stragglers. Other than include/linux/moduleparam.h and kernel/params.c all other changes were generated with the following Coccinelle SmPL patch. Merge conflicts between trees can be handled with Coccinelle. In the future git could get Coccinelle merge support to deal with patch --> fail --> grammar --> Coccinelle --> new patch conflicts automatically for us on patches where the grammar is available and the patch is of high confidence. Consider this a feature request. Test compiled on x86_64 against: * allnoconfig * allmodconfig * allyesconfig @ const_found @ identifier ops; @@ const struct kernel_param_ops ops = { }; @ const_not_found depends on !const_found @ identifier ops; @@ -struct kernel_param_ops ops = { +const struct kernel_param_ops ops = { }; Generated-by: Coccinelle SmPL Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Junio C Hamano <gitster@pobox.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Kees Cook <keescook@chromium.org> Cc: Tejun Heo <tj@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: cocci@systeme.lip6.fr Cc: linux-kernel@vger.kernel.org Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-05-12LSM: Switch to lists of hooksCasey Schaufler
Instead of using a vector of security operations with explicit, special case stacking of the capability and yama hooks use lists of hooks with capability and yama hooks included as appropriate. The security_operations structure is no longer required. Instead, there is a union of the function pointers that allows all the hooks lists to use a common mechanism for list management while retaining typing. Each module supplies an array describing the hooks it provides instead of a sparsely populated security_operations structure. The description includes the element that gets put on the hook list, avoiding the issues surrounding individual element allocation. The method for registering security modules is changed to reflect the information available. The method for removing a module, currently only used by SELinux, has also changed. It should be generic now, however if there are potential race conditions based on ordering of hook removal that needs to be addressed by the calling module. The security hooks are called from the lists and the first failure is returned. Signed-off-by: Casey Schaufler <casey@schaufler-ca.com> Acked-by: John Johansen <john.johansen@canonical.com> Acked-by: Kees Cook <keescook@chromium.org> Acked-by: Paul Moore <paul@paul-moore.com> Acked-by: Stephen Smalley <sds@tycho.nsa.gov> Acked-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <james.l.morris@oracle.com>
2015-05-12LSM: Add security module hook list headsCasey Schaufler
Add a list header for each security hook. They aren't used until later in the patch series. They are grouped together in a structure so that there doesn't need to be an external address for each. Macro-ize the initialization of the security_operations for each security module in anticipation of changing out the security_operations structure. Signed-off-by: Casey Schaufler <casey@schaufler-ca.com> Acked-by: John Johansen <john.johansen@canonical.com> Acked-by: Kees Cook <keescook@chromium.org> Acked-by: Paul Moore <paul@paul-moore.com> Acked-by: Stephen Smalley <sds@tycho.nsa.gov> Acked-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <james.l.morris@oracle.com>
2015-05-12LSM: Split security.hCasey Schaufler
The security.h header file serves two purposes, interfaces for users of the security modules and interfaces for security modules. Users of the security modules don't need to know about what's in the security_operations structure, so pull it out into it's own header, lsm_hooks.h Signed-off-by: Casey Schaufler <casey@schaufler-ca.com> Acked-by: John Johansen <john.johansen@canonical.com> Acked-by: Kees Cook <keescook@chromium.org> Acked-by: Paul Moore <paul@paul-moore.com> Acked-by: Stephen Smalley <sds@tycho.nsa.gov> Acked-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <james.l.morris@oracle.com>
2015-04-15VFS: security/: d_inode() annotationsDavid Howells
... except where that code acts as a filesystem driver, rather than working with dentries given to it. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-04-15VFS: security/: d_backing_inode() annotationsDavid Howells
most of the ->d_inode uses there refer to the same inode IO would go to, i.e. d_backing_inode() Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-04-11switch security_inode_getattr() to struct path *Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-02-22Apparmor: Use d_is_positive/negative() rather than testing dentry->d_inodeDavid Howells
Use d_is_positive(dentry) or d_is_negative(dentry) rather than testing dentry->d_inode as the dentry may cover another layer that has an inode when the top layer doesn't or may hold a 0,0 chardev that's actually a whiteout. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-02-22Apparmor: mediated_filesystem() should use dentry->d_sb not inode->i_sbDavid Howells
mediated_filesystem() should use dentry->d_sb not dentry->d_inode->i_sb and should avoid file_inode() also since it is really dealing with the path. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-12 21:43:08 +0000