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2016-07-20Smack: Assign smack_known_web label for kernel thread's socket in the ↵jooseong lee1-2/+10
sk_alloc_security hook Creating struct sock by sk_alloc function in various kernel subsystems like bluetooth dosen't call smack_socket_post_create(). In such case, received sock label is the floor('_') label and makes access deny. Refers to: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7412301b76bd53ee53b860f611fc3b5b1c2245b5 Change-Id: I614c5f0e6d59be5ca6b49f0581edfef79fc334cf Signed-off-by: jooseong lee <jooseong.lee@samsung.com>
2016-06-23Remove kdbus Linux Security Module hookssubmit/tizen/20160628.074335accepted/tizen/wearable/20160628.100225accepted/tizen/tv/20160628.100231accepted/tizen/mobile/20160628.100208accepted/tizen/ivi/20160628.100251Karol Lewandowski4-111/+0
This commit removes support for kdbus-LSM hooks as policy decisions are handled solely by userspace (libdbuspolicy library). This commit reverts following: - 802de9506 ("lsm: smack: smack callbacks for kdbus security hooks") - f13b7e7bd ("kdbus: use LSM hooks in kdbus code") - 067afa709 ("lsm: smack: Make ipc/kdbus includes visible so smack callbacks could see them") - 442f047fd ("lsm: make security_file_receive available for external modules") - 3b556db4b ("lsm: kdbus security hooks") Change-Id: Iae90cdb9577a9e706288b28d70bd57574398276e
2016-04-04lsm: smack: smack callbacks for kdbus security hooksPaul Osmialowski1-0/+61
This adds implementation of three smack callbacks sitting behind kdbus security hooks as proposed by Karol Lewandowski. Originates from: git://git.infradead.org/users/pcmoore/selinux (branch: working-kdbus) commit: fc3505d058c001fe72a6f66b833e0be5b2d118f3 https://github.com/lmctl/linux.git (branch: kdbus-lsm-v4.for-systemd-v212) commit: 103c26fd27d1ec8c32d85dd3d85681f936ac66fb Change-Id: I8f850ffdc8f2a5f38abde47f2996b6ff8defdc1f Signed-off-by: Karol Lewandowski <k.lewandowsk@samsung.com> Signed-off-by: Paul Osmialowski <p.osmialowsk@samsung.com>
2016-04-04lsm: kdbus security hooksPaul Osmialowski2-0/+47
This is combination of work by Karol Lewandowski and Paul Moore on LSM hooks for kdbus. Originates from: git://git.infradead.org/users/pcmoore/selinux (branch: working-kdbus) commit: 7050f206a79564886938d0edc4e1e9da5972c72d https://github.com/lmctl/linux.git (branch: kdbus-lsm-v4.for-systemd-v212) commit: a9fe4c33b6e5ab25a243e0590df406aabb6add12 Change-Id: Ie55cd3eb6427542856d15ded7ba986712c2b9453 Signed-off-by: Karol Lewandowski <k.lewandowsk@samsung.com> Signed-off-by: Paul Moore <pmoore@redhat.com> Signed-off-by: Paul Osmialowski <p.osmialowsk@samsung.com>
2016-04-04lsm: smack: Make ipc/kdbus includes visible so smack callbacks could see themPaul Osmialowski1-0/+2
Change-Id: I025bd8622a2667c0fe75736b16c7d3beae83f888 Signed-off-by: Paul Osmialowski <p.osmialowsk@samsung.com>
2016-04-04lsm: make security_file_receive available for external modulesKarol Lewandowski1-0/+1
This is required for using filedesc related LSM hooks in kdbus code if it is built as a module. Change-Id: I980b1938756761b260f88037e1073b26574bb37e Signed-off-by: Karol Lewandowski <k.lewandowsk@samsung.com>
2016-04-04KEYS: Fix keyring ref leak in join_session_keyring()Yevgeny Pats1-0/+1
This fixes CVE-2016-0728. If a thread is asked to join as a session keyring the keyring that's already set as its session, we leak a keyring reference. This can be tested with the following program: #include <stddef.h> #include <stdio.h> #include <sys/types.h> #include <keyutils.h> int main(int argc, const char *argv[]) { int i = 0; key_serial_t serial; serial = keyctl(KEYCTL_JOIN_SESSION_KEYRING, "leaked-keyring"); if (serial < 0) { perror("keyctl"); return -1; } if (keyctl(KEYCTL_SETPERM, serial, KEY_POS_ALL | KEY_USR_ALL) < 0) { perror("keyctl"); return -1; } for (i = 0; i < 100; i++) { serial = keyctl(KEYCTL_JOIN_SESSION_KEYRING, "leaked-keyring"); if (serial < 0) { perror("keyctl"); return -1; } } return 0; } If, after the program has run, there something like the following line in /proc/keys: 3f3d898f I--Q--- 100 perm 3f3f0000 0 0 keyring leaked-keyring: empty with a usage count of 100 * the number of times the program has been run, then the kernel is malfunctioning. If leaked-keyring has zero usages or has been garbage collected, then the problem is fixed. Change-Id: I08e8b8e929575583a94b6c84826c8f05e4dca075 Reported-by: Yevgeny Pats <yevgeny@perception-point.io> Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Don Zickus <dzickus@redhat.com> Acked-by: Prarit Bhargava <prarit@redhat.com> Acked-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: James Morris <james.l.morris@oracle.com> [Backport from mainline commit 23567fd052a9abb6d67fe8e7a9ccdd9800a540f2 to resolve CVE-2016-0728] Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
2016-03-31Smack: type confusion in smak sendmsg() handlerRoman Kubiak1-1/+1
Smack security handler for sendmsg() syscall is vulnerable to type confusion issue what can allow to privilege escalation into root or cause denial of service. A malicious attacker can create socket of one type for example AF_UNIX and pass is into sendmsg() function ensuring that this is AF_INET socket. Remedy Do not trust user supplied data. Proposed fix below. Signed-off-by: Roman Kubiak <r.kubiak@samsung.com> Signed-off-by: Mateusz Fruba <m.fruba@samsung.com> Acked-by: Casey Schaufler <casey@schaufler-ca.com>
2016-03-31Smack: File receive for socketsCasey Schaufler1-0/+22
The existing file receive hook checks for access on the file inode even for UDS. This is not right, as the inode is not used by Smack to make access checks for sockets. This change checks for an appropriate access relationship between the receiving (current) process and the socket. If the process can't write to the socket's send label or the socket's receive label can't write to the process fail. This will allow the legitimate cases, where the socket sender and socket receiver can freely communicate. Only strangly set socket labels should cause a problem. Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
2016-03-31Smack: limited capability for changing process labelZbigniew Jasinski4-42/+230
This feature introduces new kernel interface: - <smack_fs>/relabel-self - for setting transition labels list This list is used to control smack label transition mechanism. List is set by, and per process. Process can transit to new label only if label is on the list. Only process with CAP_MAC_ADMIN capability can add labels to this list. With this list, process can change it's label without CAP_MAC_ADMIN but only once. After label changing, list is unset. Changes in v2: * use list_for_each_entry instead of _rcu during label write * added missing description in security/Smack.txt Changes in v3: * squashed into one commit Changes in v4: * switch from global list to per-task list * since the per-task list is accessed only by the task itself there is no need to use synchronization mechanisms on it Changes in v5: * change smackfs interface of relabel-self to the one used for onlycap multiple labels are accepted, separated by space, which replace the previous list upon write Signed-off-by: Zbigniew Jasinski <z.jasinski@samsung.com> Signed-off-by: Rafal Krypa <r.krypa@samsung.com> Acked-by: Casey Schaufler <casey@schaufler-ca.com>
2016-03-31Smack: pipefs fix in smack_d_instantiateRoman Kubiak1-0/+3
This fix writes the task label when smack_d_instantiate is called, before the label of the superblock was written on the pipe's inode. Signed-off-by: Roman Kubiak <r.kubiak@samsung.com> Acked-by: Casey Schaufler <casey@schaufler-ca.com>
2016-03-31Smack - Fix build error with bringup unconfiguredCasey Schaufler1-14/+18
The changes for mounting binary filesystems was allied improperly, with the list of tokens being in an ifdef that it shouldn't have been. Fix that, and a couple style issues that were bothering me. Reported-by: Jim Davis <jim.epost@gmail.com> Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
2016-03-31Kernel threads excluded from smack checksRoman Kubiak1-0/+6
Adds an ignore case for kernel tasks, so that they can access all resources. Since kernel worker threads are spawned with floor label, they are severely restricted by Smack policy. It is not an issue without onlycap, as these processes also run with root, so CAP_MAC_OVERRIDE kicks in. But with onlycap turned on, there is no way to change the label for these processes. Signed-off-by: Roman Kubiak <r.kubiak@samsung.com> Acked-by: Casey Schaufler <casey@schaufler-ca.com>
2016-03-31smack: allow mount opts setting over filesystems with binary mount dataVivek Trivedi2-40/+219
Add support for setting smack mount labels(using smackfsdef, smackfsroot, smackfshat, smackfsfloor, smackfstransmute) for filesystems with binary mount data like NFS. To achieve this, implement sb_parse_opts_str and sb_set_mnt_opts security operations in smack LSM similar to SELinux. Signed-off-by: Vivek Trivedi <t.vivek@samsung.com> Signed-off-by: Amit Sahrawat <a.sahrawat@samsung.com> Acked-by: Casey Schaufler <casey@schaufler-ca.com>
2016-03-31Smack: allow multiple labels in onlycapRafal Krypa3-69/+160
Smack onlycap allows limiting of CAP_MAC_ADMIN and CAP_MAC_OVERRIDE to processes running with the configured label. But having single privileged label is not enough in some real use cases. On a complex system like Tizen, there maybe few programs that need to configure Smack policy in run-time and running them all with a single label is not always practical. This patch extends onlycap feature for multiple labels. They are configured in the same smackfs "onlycap" interface, separated by spaces. Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
2016-03-31Smack: fix seq operations in smackfsRafal Krypa1-30/+22
Use proper RCU functions and read locking in smackfs seq_operations. Smack gets away with not using proper RCU functions in smackfs, because it never removes entries from these lists. But now one list will be needed (with interface in smackfs) that will have both elements added and removed to it. This change will also help any future changes implementing removal of unneeded entries from other Smack lists. The patch also fixes handling of pos argument in smk_seq_start and smk_seq_next. This fixes a bug in case when smackfs is read with a small buffer: Kernel panic - not syncing: Kernel mode fault at addr 0xfa0000011b CPU: 0 PID: 1292 Comm: dd Not tainted 4.1.0-rc1-00012-g98179b8 #13 Stack: 00000003 0000000d 7ff39e48 7f69fd00 7ff39ce0 601ae4b0 7ff39d50 600e587b 00000010 6039f690 7f69fd40 00612003 Call Trace: [<601ae4b0>] load2_seq_show+0x19/0x1d [<600e587b>] seq_read+0x168/0x331 [<600c5943>] __vfs_read+0x21/0x101 [<601a595e>] ? security_file_permission+0xf8/0x105 [<600c5ec6>] ? rw_verify_area+0x86/0xe2 [<600c5fc3>] vfs_read+0xa1/0x14c [<600c68e2>] SyS_read+0x57/0xa0 [<6001da60>] handle_syscall+0x60/0x80 [<6003087d>] userspace+0x442/0x548 [<6001aa77>] ? interrupt_end+0x0/0x80 [<6001daae>] ? copy_chunk_to_user+0x0/0x2b [<6002cb6b>] ? save_registers+0x1f/0x39 [<60032ef7>] ? arch_prctl+0xf5/0x170 [<6001a92d>] fork_handler+0x85/0x87 Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
2016-03-31smack: pass error code through pointersLukasz Pawelczyk3-97/+139
This patch makes the following functions to use ERR_PTR() and related macros to pass the appropriate error code through returned pointers: smk_parse_smack() smk_import_entry() smk_fetch() It also makes all the other functions that use them to handle the error cases properly. This ways correct error codes from places where they happened can be propagated to the user space if necessary. Doing this it fixes a bug in onlycap and unconfined files handling. Previously their content was cleared on any error from smk_import_entry/smk_parse_smack, be it EINVAL (as originally intended) or ENOMEM. Right now it only reacts on EINVAL passing other codes properly to userspace. Comments have been updated accordingly. Signed-off-by: Lukasz Pawelczyk <l.pawelczyk@samsung.com>
2016-03-31Smack: ignore private inode for smack_file_receiveSeung-Woo Kim1-0/+3
The dmabuf fd can be shared between processes via unix domain socket. The file of dmabuf fd is came from anon_inode. The inode has no set and get xattr operations, so it can not be shared between processes with smack. This patch fixes just to ignore private inode including anon_inode for smack_file_receive. Change-Id: I1b5223ebf2fb1f810380c62096aa64a16b054057 Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com> Acked-by: Casey Schaufler <casey@schaufler-ca.com>
2015-07-02smack: add permissive mode for debugging purposeChanho Park5-0/+113
This patch adds smack permissive mode. Signed-off-by: Chanho Park <chanho61.park@samsung.com>
2015-04-26Merge branch 'for-linus' of ↵Linus Torvalds16-117/+117
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull fourth vfs update from Al Viro: "d_inode() annotations from David Howells (sat in for-next since before the beginning of merge window) + four assorted fixes" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: RCU pathwalk breakage when running into a symlink overmounting something fix I_DIO_WAKEUP definition direct-io: only inc/dec inode->i_dio_count for file systems fs/9p: fix readdir() VFS: assorted d_backing_inode() annotations VFS: fs/inode.c helpers: d_inode() annotations VFS: fs/cachefiles: d_backing_inode() annotations VFS: fs library helpers: d_inode() annotations VFS: assorted weird filesystems: d_inode() annotations VFS: normal filesystems (and lustre): d_inode() annotations VFS: security/: d_inode() annotations VFS: security/: d_backing_inode() annotations VFS: net/: d_inode() annotations VFS: net/unix: d_backing_inode() annotations VFS: kernel/: d_inode() annotations VFS: audit: d_backing_inode() annotations VFS: Fix up some ->d_inode accesses in the chelsio driver VFS: Cachefiles should perform fs modifications on the top layer only VFS: AF_UNIX sockets should call mknod on the top layer only
2015-04-17tomoyo: reduce mmap_sem hold for mm->exe_fileDavidlohr Bueso1-5/+8
The mm->exe_file is currently serialized with mmap_sem (shared) in order to both safely (1) read the file and (2) compute the realpath by calling tomoyo_realpath_from_path, making it an absolute overkill. Good users will, on the other hand, make use of the more standard get_mm_exe_file(), requiring only holding the mmap_sem to read the value, and relying on reference [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Davidlohr Bueso <dbueso@suse.de> Acked-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Cc: James Morris <jmorris@namei.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-04-15Merge branch 'akpm' (patches from Andrew)Linus Torvalds1-0/+1
Merge second patchbomb from Andrew Morton: - the rest of MM - various misc bits - add ability to run /sbin/reboot at reboot time - printk/vsprintf changes - fiddle with seq_printf() return value * akpm: (114 commits) parisc: remove use of seq_printf return value lru_cache: remove use of seq_printf return value tracing: remove use of seq_printf return value cgroup: remove use of seq_printf return value proc: remove use of seq_printf return value s390: remove use of seq_printf return value cris fasttimer: remove use of seq_printf return value cris: remove use of seq_printf return value openrisc: remove use of seq_printf return value ARM: plat-pxa: remove use of seq_printf return value nios2: cpuinfo: remove use of seq_printf return value microblaze: mb: remove use of seq_printf return value ipc: remove use of seq_printf return value rtc: remove use of seq_printf return value power: wakeup: remove use of seq_printf return value x86: mtrr: if: remove use of seq_printf return value linux/bitmap.h: improve BITMAP_{LAST,FIRST}_WORD_MASK MAINTAINERS: CREDITS: remove Stefano Brivio from B43 .mailmap: add Ricardo Ribalda CREDITS: add Ricardo Ribalda Delgado ...
2015-04-15kernel: conditionally support non-root users, groups and capabilitiesIulia Manda1-0/+1
There are a lot of embedded systems that run most or all of their functionality in init, running as root:root. For these systems, supporting multiple users is not necessary. This patch adds a new symbol, CONFIG_MULTIUSER, that makes support for non-root users, non-root groups, and capabilities optional. It is enabled under CONFIG_EXPERT menu. When this symbol is not defined, UID and GID are zero in any possible case and processes always have all capabilities. The following syscalls are compiled out: setuid, setregid, setgid, setreuid, setresuid, getresuid, setresgid, getresgid, setgroups, getgroups, setfsuid, setfsgid, capget, capset. Also, groups.c is compiled out completely. In kernel/capability.c, capable function was moved in order to avoid adding two ifdef blocks. This change saves about 25 KB on a defconfig build. The most minimal kernels have total text sizes in the high hundreds of kB rather than low MB. (The 25k goes down a bit with allnoconfig, but not that much. The kernel was booted in Qemu. All the common functionalities work. Adding users/groups is not possible, failing with -ENOSYS. Bloat-o-meter output: add/remove: 7/87 grow/shrink: 19/397 up/down: 1675/-26325 (-24650) [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Iulia Manda <iulia.manda21@gmail.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Tested-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-04-15VFS: security/: d_inode() annotationsDavid Howells4-12/+12
... 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 Howells12-105/+105
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>
2015-04-15Merge branch 'next' of ↵Linus Torvalds16-115/+324
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security Pull security subsystem updates from James Morris: "Highlights for this window: - improved AVC hashing for SELinux by John Brooks and Stephen Smalley - addition of an unconfined label to Smack - Smack documentation update - TPM driver updates" * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (28 commits) lsm: copy comm before calling audit_log to avoid race in string printing tomoyo: Do not generate empty policy files tomoyo: Use if_changed when generating builtin-policy.h tomoyo: Use bin2c to generate builtin-policy.h selinux: increase avtab max buckets selinux: Use a better hash function for avtab selinux: convert avtab hash table to flex_array selinux: reconcile security_netlbl_secattr_to_sid() and mls_import_netlbl_cat() selinux: remove unnecessary pointer reassignment Smack: Updates for Smack documentation tpm/st33zp24/spi: Add missing device table for spi phy. tpm/st33zp24: Add proper wait for ordinal duration in case of irq mode smack: Fix gcc warning from unused smack_syslog_lock mutex in smackfs.c Smack: Allow an unconfined label in bringup mode Smack: getting the Smack security context of keys Smack: Assign smack_known_web as default smk_in label for kernel thread's socket tpm/tpm_infineon: Use struct dev_pm_ops for power management MAINTAINERS: Add Jason as designated reviewer for TPM tpm: Update KConfig text to include TPM2.0 FIFO chips tpm/st33zp24/dts/st33zp24-spi: Add dts documentation for st33zp24 spi phy ...
2015-04-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds5-43/+24
Pull networking updates from David Miller: 1) Add BQL support to via-rhine, from Tino Reichardt. 2) Integrate SWITCHDEV layer support into the DSA layer, so DSA drivers can support hw switch offloading. From Floria Fainelli. 3) Allow 'ip address' commands to initiate multicast group join/leave, from Madhu Challa. 4) Many ipv4 FIB lookup optimizations from Alexander Duyck. 5) Support EBPF in cls_bpf classifier and act_bpf action, from Daniel Borkmann. 6) Remove the ugly compat support in ARP for ugly layers like ax25, rose, etc. And use this to clean up the neigh layer, then use it to implement MPLS support. All from Eric Biederman. 7) Support L3 forwarding offloading in switches, from Scott Feldman. 8) Collapse the LOCAL and MAIN ipv4 FIB tables when possible, to speed up route lookups even further. From Alexander Duyck. 9) Many improvements and bug fixes to the rhashtable implementation, from Herbert Xu and Thomas Graf. In particular, in the case where an rhashtable user bulk adds a large number of items into an empty table, we expand the table much more sanely. 10) Don't make the tcp_metrics hash table per-namespace, from Eric Biederman. 11) Extend EBPF to access SKB fields, from Alexei Starovoitov. 12) Split out new connection request sockets so that they can be established in the main hash table. Much less false sharing since hash lookups go direct to the request sockets instead of having to go first to the listener then to the request socks hashed underneath. From Eric Dumazet. 13) Add async I/O support for crytpo AF_ALG sockets, from Tadeusz Struk. 14) Support stable privacy address generation for RFC7217 in IPV6. From Hannes Frederic Sowa. 15) Hash network namespace into IP frag IDs, also from Hannes Frederic Sowa. 16) Convert PTP get/set methods to use 64-bit time, from Richard Cochran. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1816 commits) fm10k: Bump driver version to 0.15.2 fm10k: corrected VF multicast update fm10k: mbx_update_max_size does not drop all oversized messages fm10k: reset head instead of calling update_max_size fm10k: renamed mbx_tx_dropped to mbx_tx_oversized fm10k: update xcast mode before synchronizing multicast addresses fm10k: start service timer on probe fm10k: fix function header comment fm10k: comment next_vf_mbx flow fm10k: don't handle mailbox events in iov_event path and always process mailbox fm10k: use separate workqueue for fm10k driver fm10k: Set PF queues to unlimited bandwidth during virtualization fm10k: expose tx_timeout_count as an ethtool stat fm10k: only increment tx_timeout_count in Tx hang path fm10k: remove extraneous "Reset interface" message fm10k: separate PF only stats so that VF does not display them fm10k: use hw->mac.max_queues for stats fm10k: only show actual queues, not the maximum in hardware fm10k: allow creation of VLAN on default vid fm10k: fix unused warnings ...
2015-04-15lsm: copy comm before calling audit_log to avoid race in string printingRichard Guy Briggs1-6/+9
When task->comm is passed directly to audit_log_untrustedstring() without getting a copy or using the task_lock, there is a race that could happen that would output a NULL (\0) in the middle of the output string that would effectively truncate the rest of the report text after the comm= field in the audit log message, losing fields. Using get_task_comm() to get a copy while acquiring the task_lock to prevent this and to prevent the result from being a mixture of old and new values of comm would incur potentially unacceptable overhead, considering that the value can be influenced by userspace and therefore untrusted anyways. Copy the value before passing it to audit_log_untrustedstring() ensures that a local copy is used to calculate the length *and* subsequently printed. Even if this value contains a mix of old and new values, it will only calculate and copy up to the first NULL, preventing the rest of the audit log message being truncated. Use a second local copy of comm to avoid a race between the first and second calls to audit_log_untrustedstring() with comm. Reported-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Richard Guy Briggs <rgb@redhat.com> Signed-off-by: James Morris <james.l.morris@oracle.com>
2015-04-14Merge branch 'for-linus-1' of ↵Linus Torvalds12-106/+64
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs update from Al Viro: "Part one: - struct filename-related cleanups - saner iov_iter_init() replacements (and switching the syscalls to use of those) - ntfs switch to ->write_iter() (Anton) - aio cleanups and splitting iocb into common and async parts (Christoph) - assorted fixes (me, bfields, Andrew Elble) There's a lot more, including the completion of switchover to ->{read,write}_iter(), d_inode/d_backing_inode annotations, f_flags race fixes, etc, but that goes after #for-davem merge. David has pulled it, and once it's in I'll send the next vfs pull request" * 'for-linus-1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (35 commits) sg_start_req(): use import_iovec() sg_start_req(): make sure that there's not too many elements in iovec blk_rq_map_user(): use import_single_range() sg_io(): use import_iovec() process_vm_access: switch to {compat_,}import_iovec() switch keyctl_instantiate_key_common() to iov_iter switch {compat_,}do_readv_writev() to {compat_,}import_iovec() aio_setup_vectored_rw(): switch to {compat_,}import_iovec() vmsplice_to_user(): switch to import_iovec() kill aio_setup_single_vector() aio: simplify arguments of aio_setup_..._rw() aio: lift iov_iter_init() into aio_setup_..._rw() lift iov_iter into {compat_,}do_readv_writev() NFS: fix BUG() crash in notify_change() with patch to chown_common() dcache: return -ESTALE not -EBUSY on distributed fs race NTFS: Version 2.1.32 - Update file write from aio_write to write_iter. VFS: Add iov_iter_fault_in_multipages_readable() drop bogus check in file_open_root() switch security_inode_getattr() to struct path * constify tomoyo_realpath_from_path() ...
2015-04-13selinux/nlmsg: add a build time check for rtnl/xfrm cmdsNicolas Dichtel1-0/+3
When a new rtnl or xfrm command is added, this part of the code is frequently missing. Let's help the developer with a build time test. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-13Merge branch 'tomoyo-cleanup' of ↵James Morris4-45/+15
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild into next
2015-04-12selinux/nlmsg: add XFRM_MSG_MAPPINGNicolas Dichtel1-0/+1
This command is missing. Fixes: 3a2dfbe8acb1 ("xfrm: Notify changes in UDP encapsulation via netlink") CC: Martin Willi <martin@strongswan.org> Reported-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-12selinux/nlmsg: add XFRM_MSG_MIGRATENicolas Dichtel1-0/+1
This command is missing. Fixes: 5c79de6e79cd ("[XFRM]: User interface for handling XFRM_MSG_MIGRATE") Reported-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-12selinux/nlmsg: add XFRM_MSG_REPORTNicolas Dichtel1-0/+1
This command is missing. Fixes: 97a64b4577ae ("[XFRM]: Introduce XFRM_MSG_REPORT.") Reported-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-11Merge branch 'for-davem' into for-nextAl Viro5-44/+12
2015-04-11switch keyctl_instantiate_key_common() to iov_iterAl Viro3-72/+40
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-04-11switch security_inode_getattr() to struct path *Al Viro8-30/+20
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-04-11constify tomoyo_realpath_from_path()Al Viro2-4/+4
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-04-08selinux/nlmsg: add XFRM_MSG_[NEW|GET]SADINFONicolas Dichtel1-0/+2
These commands are missing. Fixes: 28d8909bc790 ("[XFRM]: Export SAD info.") Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-08selinux/nlmsg: add XFRM_MSG_GETSPDINFONicolas Dichtel1-0/+1
This command is missing. Fixes: ecfd6b183780 ("[XFRM]: Export SPD info") Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-08selinux/nlmsg: add XFRM_MSG_NEWSPDINFONicolas Dichtel1-0/+1
This new command is missing. Fixes: 880a6fab8f6b ("xfrm: configure policy hash table thresholds by netlink") Reported-by: Christophe Gouault <christophe.gouault@6wind.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-08selinux/nlmsg: add RTM_GETNSIDNicolas Dichtel1-0/+1
This new command is missing. Fixes: 9a9634545c70 ("netns: notify netns id events") Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-08selinux/nlmsg: add RTM_NEWNSID and RTM_GETNSIDNicolas Dichtel1-0/+2
These new commands are missing. Fixes: 0c7aecd4bde4 ("netns: add rtnl cmd to add and get peer netns ids") Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-07tomoyo: Do not generate empty policy filesMichal Marek3-29/+5
The Makefile automatically generates the tomoyo policy files, which are not removed by make clean (because they could have been provided by the user). Instead of generating the missing files, use /dev/null if a given file is not provided. Store the default exception_policy in exception_policy.conf.default. Acked-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Michal Marek <mmarek@suse.cz>
2015-04-07tomoyo: Use if_changed when generating builtin-policy.hMichal Marek1-18/+11
Combine the generation of builtin-policy.h into a single command and use if_changed, so that the file is regenerated each time the command changes. The next patch will make use of this. Acked-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Michal Marek <mmarek@suse.cz>
2015-04-07tomoyo: Use bin2c to generate builtin-policy.hMichal Marek2-10/+11
Simplify the Makefile by using a readily available tool instead of a custom sed script. The downside is that builtin-policy.h becomes unreadable for humans, but it is only a generated file. Acked-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Michal Marek <mmarek@suse.cz>
2015-04-06selinux: increase avtab max bucketsStephen Smalley1-1/+1
Now that we can safely increase the avtab max buckets without triggering high order allocations and have a hash function that will make better use of the larger number of buckets, increase the max buckets to 2^16. Original: 101421 entries and 2048/2048 buckets used, longest chain length 374 With new hash function: 101421 entries and 2048/2048 buckets used, longest chain length 81 With increased max buckets: 101421 entries and 31078/32768 buckets used, longest chain length 12 Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: Paul Moore <pmoore@redhat.com>
2015-04-06selinux: Use a better hash function for avtabJohn Brooks2-5/+38
This function, based on murmurhash3, has much better distribution than the original. Using the current default of 2048 buckets, there are many fewer collisions: Before: 101421 entries and 2048/2048 buckets used, longest chain length 374 After: 101421 entries and 2048/2048 buckets used, longest chain length 81 The difference becomes much more significant when buckets are increased. A naive attempt to expand the current function to larger outputs doesn't yield any significant improvement; so this function is a prerequisite for increasing the bucket size. sds: Adapted from the original patches for libsepol to the kernel. Signed-off-by: John Brooks <john.brooks@jolla.com> Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: Paul Moore <pmoore@redhat.com>
2015-04-06selinux: convert avtab hash table to flex_arrayStephen Smalley2-13/+22
Previously we shrank the avtab max hash buckets to avoid high order memory allocations, but this causes avtab lookups to degenerate to very long linear searches for the Fedora policy. Convert to using a flex_array instead so that we can increase the buckets without such limitations. This change does not alter the max hash buckets; that is left to a separate follow-on change. Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: Paul Moore <pmoore@redhat.com>
2015-04-06selinux: reconcile security_netlbl_secattr_to_sid() and mls_import_netlbl_cat()Paul Moore2-12/+4
Move the NetLabel secattr MLS category import logic into mls_import_netlbl_cat() where it belongs, and use the mls_import_netlbl_cat() function in security_netlbl_secattr_to_sid(). Reported-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Signed-off-by: Paul Moore <pmoore@redhat.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-01 19:23:02 +0000