Pull selinux fix from Paul Moore:
 "One small SELinux patch to get rid improve our handling of unknown
  extended permissions by safely ignoring them.

  Not only does this make it easier to support newer SELinux policy
  on older kernels in the future, it removes to BUG() calls from the
  SELinux code."

* tag 'selinux-pr-20241217' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
  selinux: ignore unknown extended permissions

When evaluating extended permissions, ignore unknown permissions instead
of calling BUG(). This commit ensures that future permissions can be
added without interfering with older kernels.

Cc: stable@vger.kernel.org
Fixes: fa1aa143ac4a ("selinux: extended permissions for ioctls")
Signed-off-by: Thiébaud Weksteen <tweek@google.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>

In blamed commit, TCP started to attach timewait sockets to
some skbs.

syzbot reported that selinux_ip_output() was not expecting them yet.

Note that using sk_to_full_sk() is still allowing the
following sk_listener() check to work as before.

BUG: KASAN: slab-out-of-bounds in selinux_sock security/selinux/include/objsec.h:207 [inline]
BUG: KASAN: slab-out-of-bounds in selinux_ip_output+0x1e0/0x1f0 security/selinux/hooks.c:5761
Read of size 8 at addr ffff88804e86e758 by task syz-executor347/5894

CPU: 0 UID: 0 PID: 5894 Comm: syz-executor347 Not tainted 6.12.0-syzkaller-05480-gfcc79e1714e8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Call Trace:
 <IRQ>
  __dump_stack lib/dump_stack.c:94 [inline]
  dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
  print_address_description mm/kasan/report.c:377 [inline]
  print_report+0xc3/0x620 mm/kasan/report.c:488
  kasan_report+0xd9/0x110 mm/kasan/report.c:601
  selinux_sock security/selinux/include/objsec.h:207 [inline]
  selinux_ip_output+0x1e0/0x1f0 security/selinux/hooks.c:5761
  nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
  nf_hook_slow+0xbb/0x200 net/netfilter/core.c:626
  nf_hook+0x386/0x6d0 include/linux/netfilter.h:269
  __ip_local_out+0x339/0x640 net/ipv4/ip_output.c:119
  ip_local_out net/ipv4/ip_output.c:128 [inline]
  ip_send_skb net/ipv4/ip_output.c:1505 [inline]
  ip_push_pending_frames+0xa0/0x5b0 net/ipv4/ip_output.c:1525
  ip_send_unicast_reply+0xd0e/0x1650 net/ipv4/ip_output.c:1672
  tcp_v4_send_ack+0x976/0x13f0 net/ipv4/tcp_ipv4.c:1024
  tcp_v4_timewait_ack net/ipv4/tcp_ipv4.c:1077 [inline]
  tcp_v4_rcv+0x2f96/0x4390 net/ipv4/tcp_ipv4.c:2428
  ip_protocol_deliver_rcu+0xba/0x4c0 net/ipv4/ip_input.c:205
  ip_local_deliver_finish+0x316/0x570 net/ipv4/ip_input.c:233
  NF_HOOK include/linux/netfilter.h:314 [inline]
  NF_HOOK include/linux/netfilter.h:308 [inline]
  ip_local_deliver+0x18e/0x1f0 net/ipv4/ip_input.c:254
  dst_input include/net/dst.h:460 [inline]
  ip_rcv_finish net/ipv4/ip_input.c:447 [inline]
  NF_HOOK include/linux/netfilter.h:314 [inline]
  NF_HOOK include/linux/netfilter.h:308 [inline]
  ip_rcv+0x2c3/0x5d0 net/ipv4/ip_input.c:567
  __netif_receive_skb_one_core+0x199/0x1e0 net/core/dev.c:5672
  __netif_receive_skb+0x1d/0x160 net/core/dev.c:5785
  process_backlog+0x443/0x15f0 net/core/dev.c:6117
  __napi_poll.constprop.0+0xb7/0x550 net/core/dev.c:6877
  napi_poll net/core/dev.c:6946 [inline]
  net_rx_action+0xa94/0x1010 net/core/dev.c:7068
  handle_softirqs+0x213/0x8f0 kernel/softirq.c:554
  do_softirq kernel/softirq.c:455 [inline]
  do_softirq+0xb2/0xf0 kernel/softirq.c:442
 </IRQ>
 <TASK>
  __local_bh_enable_ip+0x100/0x120 kernel/softirq.c:382
  local_bh_enable include/linux/bottom_half.h:33 [inline]
  rcu_read_unlock_bh include/linux/rcupdate.h:919 [inline]
  __dev_queue_xmit+0x8af/0x43e0 net/core/dev.c:4461
  dev_queue_xmit include/linux/netdevice.h:3168 [inline]
  neigh_hh_output include/net/neighbour.h:523 [inline]
  neigh_output include/net/neighbour.h:537 [inline]
  ip_finish_output2+0xc6c/0x2150 net/ipv4/ip_output.c:236
  __ip_finish_output net/ipv4/ip_output.c:314 [inline]
  __ip_finish_output+0x49e/0x950 net/ipv4/ip_output.c:296
  ip_finish_output+0x35/0x380 net/ipv4/ip_output.c:324
  NF_HOOK_COND include/linux/netfilter.h:303 [inline]
  ip_output+0x13b/0x2a0 net/ipv4/ip_output.c:434
  dst_output include/net/dst.h:450 [inline]
  ip_local_out+0x33e/0x4a0 net/ipv4/ip_output.c:130
  __ip_queue_xmit+0x777/0x1970 net/ipv4/ip_output.c:536
  __tcp_transmit_skb+0x2b39/0x3df0 net/ipv4/tcp_output.c:1466
  tcp_transmit_skb net/ipv4/tcp_output.c:1484 [inline]
  tcp_write_xmit+0x12b1/0x8560 net/ipv4/tcp_output.c:2827
  __tcp_push_pending_frames+0xaf/0x390 net/ipv4/tcp_output.c:3010
  tcp_send_fin+0x154/0xc70 net/ipv4/tcp_output.c:3616
  __tcp_close+0x96b/0xff0 net/ipv4/tcp.c:3130
  tcp_close+0x28/0x120 net/ipv4/tcp.c:3221
  inet_release+0x13c/0x280 net/ipv4/af_inet.c:435
  __sock_release net/socket.c:640 [inline]
  sock_release+0x8e/0x1d0 net/socket.c:668
  smc_clcsock_release+0xb7/0xe0 net/smc/smc_close.c:34
  __smc_release+0x5c2/0x880 net/smc/af_smc.c:301
  smc_release+0x1fc/0x5f0 net/smc/af_smc.c:344
  __sock_release+0xb0/0x270 net/socket.c:640
  sock_close+0x1c/0x30 net/socket.c:1408
  __fput+0x3f8/0xb60 fs/file_table.c:450
  __fput_sync+0xa1/0xc0 fs/file_table.c:535
  __do_sys_close fs/open.c:1550 [inline]
  __se_sys_close fs/open.c:1535 [inline]
  __x64_sys_close+0x86/0x100 fs/open.c:1535
  do_syscall_x64 arch/x86/entry/common.c:52 [inline]
  do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6814c9ae10
Code: ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 80 3d b1 e2 07 00 00 74 17 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c
RSP: 002b:00007fffb2389758 EFLAGS: 00000202 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f6814c9ae10
RDX: 0000000000000010 RSI: 0000000020000000 RDI: 0000000000000003
RBP: 00000000000f4240 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000202 R12: 00007fffb23897b0
R13: 00000000000141c3 R14: 00007fffb238977c R15: 00007fffb2389790
 </TASK>

Fixes: 79636038d37e ("ipv4: tcp: give socket pointer to control skbs")
Reported-by: syzbot+2d9f5f948c31dcb7745e@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/lkml/6745e1a2.050a0220.1286eb.001c.GAE@google.com/T/#u
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Paul Moore <paul@paul-moore.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20241126145911.4187198-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Pull non-MM updates from Andrew Morton:

 - The series "resource: A couple of cleanups" from Andy Shevchenko
   performs some cleanups in the resource management code

 - The series "Improve the copy of task comm" from Yafang Shao addresses
   possible race-induced overflows in the management of
   task_struct.comm[]

 - The series "Remove unnecessary header includes from
   {tools/}lib/list_sort.c" from Kuan-Wei Chiu adds some cleanups and a
   small fix to the list_sort library code and to its selftest

 - The series "Enhance min heap API with non-inline functions and
   optimizations" also from Kuan-Wei Chiu optimizes and cleans up the
   min_heap library code

 - The series "nilfs2: Finish folio conversion" from Ryusuke Konishi
   finishes off nilfs2's folioification

 - The series "add detect count for hung tasks" from Lance Yang adds
   more userspace visibility into the hung-task detector's activity

 - Apart from that, singelton patches in many places - please see the
   individual changelogs for details

* tag 'mm-nonmm-stable-2024-11-24-02-05' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (71 commits)
  gdb: lx-symbols: do not error out on monolithic build
  kernel/reboot: replace sprintf() with sysfs_emit()
  lib: util_macros_kunit: add kunit test for util_macros.h
  util_macros.h: fix/rework find_closest() macros
  Improve consistency of '#error' directive messages
  ocfs2: fix uninitialized value in ocfs2_file_read_iter()
  hung_task: add docs for hung_task_detect_count
  hung_task: add detect count for hung tasks
  dma-buf: use atomic64_inc_return() in dma_buf_getfile()
  fs/proc/kcore.c: fix coccinelle reported ERROR instances
  resource: avoid unnecessary resource tree walking in __region_intersects()
  ocfs2: remove unused errmsg function and table
  ocfs2: cluster: fix a typo
  lib/scatterlist: use sg_phys() helper
  checkpatch: always parse orig_commit in fixes tag
  nilfs2: convert metadata aops from writepage to writepages
  nilfs2: convert nilfs_recovery_copy_block() to take a folio
  nilfs2: convert nilfs_page_count_clean_buffers() to take a folio
  nilfs2: remove nilfs_writepage
  nilfs2: convert checkpoint file to be folio-based
  ...

Pull lsm updates from Paul Moore:
 "Thirteen patches, all focused on moving away from the current 'secid'
  LSM identifier to a richer 'lsm_prop' structure.

  This move will help reduce the translation that is necessary in many
  LSMs, offering better performance, and make it easier to support
  different LSMs in the future"

* tag 'lsm-pr-20241112' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm:
  lsm: remove lsm_prop scaffolding
  netlabel,smack: use lsm_prop for audit data
  audit: change context data from secid to lsm_prop
  lsm: create new security_cred_getlsmprop LSM hook
  audit: use an lsm_prop in audit_names
  lsm: use lsm_prop in security_inode_getsecid
  lsm: use lsm_prop in security_current_getsecid
  audit: update shutdown LSM data
  lsm: use lsm_prop in security_ipc_getsecid
  audit: maintain an lsm_prop in audit_context
  lsm: add lsmprop_to_secctx hook
  lsm: use lsm_prop in security_audit_rule_match
  lsm: add the lsm_prop data structure

Quoted from Linus [0]:

  selinux never wanted a lock, and never wanted any kind of *consistent*
  result, it just wanted a *stable* result.

Using get_task_comm() to read the task comm ensures that the name is
always NUL-terminated, regardless of the source string. This approach also
facilitates future extensions to the task comm.

Link: https://lkml.kernel.org/r/20241007144911.27693-4-laoar.shao@gmail.com
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Link: https://lore.kernel.org/all/CAHk-=wivfrF0_zvf+oj6==Sh=-npJooP8chLPEfaFV0oNYTTBA@mail.gmail.com/ [0]
Acked-by: Paul Moore <paul@paul-moore.com>
Cc: James Morris <jmorris@namei.org>
Cc: "Serge E. Hallyn" <serge@hallyn.com>
Cc: Stephen Smalley <stephen.smalley.work@gmail.com>
Cc: Ondrej Mosnacek <omosnace@redhat.com>
Cc: Alejandro Colomar <alx@kernel.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Alexei Starovoitov <alexei.starovoitov@gmail.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: David Airlie <airlied@gmail.com>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Eric Paris <eparis@redhat.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Justin Stitt <justinstitt@google.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Matus Jokay <matus.jokay@stuba.sk>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Quentin Monnet <qmo@kernel.org>
Cc: Simon Horman <horms@kernel.org>
Cc: Steven Rostedt (Google) <rostedt@goodmis.org>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Remove the scaffold member from the lsm_prop. Remove the
remaining places it is being set.

Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
[PM: subj line tweak]
Signed-off-by: Paul Moore <paul@paul-moore.com>

Create a new LSM hook security_cred_getlsmprop() which, like
security_cred_getsecid(), fetches LSM specific attributes from the
cred structure.  The associated data elements in the audit sub-system
are changed from a secid to a lsm_prop to accommodate multiple possible
LSM audit users.

Cc: linux-integrity@vger.kernel.org
Cc: audit@vger.kernel.org
Cc: selinux@vger.kernel.org
Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
[PM: subj line tweak]
Signed-off-by: Paul Moore <paul@paul-moore.com>

Change the security_inode_getsecid() interface to fill in a
lsm_prop structure instead of a u32 secid. This allows for its
callers to gather data from all registered LSMs. Data is provided
for IMA and audit. Change the name to security_inode_getlsmprop().

Cc: linux-integrity@vger.kernel.org
Cc: selinux@vger.kernel.org
Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
[PM: subj line tweak]
Signed-off-by: Paul Moore <paul@paul-moore.com>

Change the security_current_getsecid_subj() and
security_task_getsecid_obj() interfaces to fill in a lsm_prop structure
instead of a u32 secid.  Audit interfaces will need to collect all
possible security data for possible reporting.

Cc: linux-integrity@vger.kernel.org
Cc: audit@vger.kernel.org
Cc: selinux@vger.kernel.org
Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
[PM: subject line tweak]
Signed-off-by: Paul Moore <paul@paul-moore.com>