linux.git/net/tipc, branch v6.9-rc2

tipc: Cleanup tipc_nl_bearer_add() error paths

2024-02-15T12:18:19+00:00

Consolidate the error paths of tipc_nl_bearer_add() under the common label
if the function holds rtnl_lock.

Signed-off-by: Shigeru Yoshida 
Reviewed-by: Tung Nguyen 
Link: https://lore.kernel.org/r/20240213134058.386123-1-syoshida@redhat.com
Signed-off-by: Paolo Abeni

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2024-02-08T23:30:33+00:00

Cross-merge networking fixes after downstream PR.

No conflicts.

Adjacent changes:

drivers/net/ethernet/stmicro/stmmac/common.h
  38cc3c6dcc09 ("net: stmmac: protect updates of 64-bit statistics counters")
  fd5a6a71313e ("net: stmmac: est: Per Tx-queue error count for HLBF")
  c5c3e1bfc9e0 ("net: stmmac: Offload queueMaxSDU from tc-taprio")

drivers/net/wireless/microchip/wilc1000/netdev.c
  c9013880284d ("wifi: fill in MODULE_DESCRIPTION()s for wilc1000")
  328efda22af8 ("wifi: wilc1000: do not realloc workqueue everytime an interface is added")

net/unix/garbage.c
  11498715f266 ("af_unix: Remove io_uring code for GC.")
  1279f9d9dec2 ("af_unix: Call kfree_skb() for dead unix_(sk)->oob_skb in GC.")

Signed-off-by: Jakub Kicinski

net: tipc: remove redundant 'bool' from CONFIG_TIPC_{MEDIA_UDP,CRYPTO}

2024-02-07T13:18:43+00:00

The 'bool' is already specified for these options.

The second 'bool' under the help message is redundant.

While I am here, I moved 'default y' above, as it is common to place
the help text last.

Signed-off-by: Masahiro Yamada 
Reviewed-by: Randy Dunlap 
Reviewed-by: Simon Horman 
Signed-off-by: David S. Miller

tipc: rename the module name diag to tipc_diag

2024-02-06T12:47:36+00:00

It is not appropriate for TIPC to use "diag" as its diag module name
while the other protocols are using "$(protoname)_diag" like tcp_diag,
udp_diag and sctp_diag etc.

So this patch is to rename diag.ko to tipc_diag.ko in tipc's Makefile.

Signed-off-by: Xin Long 
Reviewed-by: Tung Nguyen 
Link: https://lore.kernel.org/r/d909edeef072da1810bd5869fdbbfe84411efdb2.1706904669.git.lucien.xin@gmail.com
Signed-off-by: Paolo Abeni

tipc: Check the bearer type before calling tipc_udp_nl_bearer_add()

2024-02-06T07:49:26+00:00

syzbot reported the following general protection fault [1]:

general protection fault, probably for non-canonical address 0xdffffc0000000010: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000080-0x0000000000000087]
...
RIP: 0010:tipc_udp_is_known_peer+0x9c/0x250 net/tipc/udp_media.c:291
...
Call Trace:
 
 tipc_udp_nl_bearer_add+0x212/0x2f0 net/tipc/udp_media.c:646
 tipc_nl_bearer_add+0x21e/0x360 net/tipc/bearer.c:1089
 genl_family_rcv_msg_doit+0x1fc/0x2e0 net/netlink/genetlink.c:972
 genl_family_rcv_msg net/netlink/genetlink.c:1052 [inline]
 genl_rcv_msg+0x561/0x800 net/netlink/genetlink.c:1067
 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2544
 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1076
 netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]
 netlink_unicast+0x53b/0x810 net/netlink/af_netlink.c:1367
 netlink_sendmsg+0x8b7/0xd70 net/netlink/af_netlink.c:1909
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0xd5/0x180 net/socket.c:745
 ____sys_sendmsg+0x6ac/0x940 net/socket.c:2584
 ___sys_sendmsg+0x135/0x1d0 net/socket.c:2638
 __sys_sendmsg+0x117/0x1e0 net/socket.c:2667
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

The cause of this issue is that when tipc_nl_bearer_add() is called with
the TIPC_NLA_BEARER_UDP_OPTS attribute, tipc_udp_nl_bearer_add() is called
even if the bearer is not UDP.

tipc_udp_is_known_peer() called by tipc_udp_nl_bearer_add() assumes that
the media_ptr field of the tipc_bearer has an udp_bearer type object, so
the function goes crazy for non-UDP bearers.

This patch fixes the issue by checking the bearer type before calling
tipc_udp_nl_bearer_add() in tipc_nl_bearer_add().

Fixes: ef20cd4dd163 ("tipc: introduce UDP replicast")
Reported-and-tested-by: syzbot+5142b87a9abc510e14fa@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=5142b87a9abc510e14fa [1]
Signed-off-by: Shigeru Yoshida 
Reviewed-by: Tung Nguyen 
Link: https://lore.kernel.org/r/20240131152310.4089541-1-syoshida@redhat.com
Signed-off-by: Paolo Abeni

tipc: node: remove Excess struct member kernel-doc warnings

2024-01-25T01:48:29+00:00

Remove 2 kernel-doc descriptions to squelch warnings:

node.c:150: warning: Excess struct member 'inputq' description in 'tipc_node'
node.c:150: warning: Excess struct member 'namedq' description in 'tipc_node'

Signed-off-by: Randy Dunlap 
Cc: Jon Maloy 
Cc: Ying Xue 
Cc: Jonathan Corbet 
Reviewed-by: Simon Horman 
Link: https://lore.kernel.org/r/20240123051152.23684-1-rdunlap@infradead.org
Signed-off-by: Jakub Kicinski

tipc: socket: remove Excess struct member kernel-doc warning

2024-01-25T01:48:09+00:00

Remove a kernel-doc description to squelch a warning:

socket.c:143: warning: Excess struct member 'blocking_link' description in 'tipc_sock'

Signed-off-by: Randy Dunlap 
Cc: Jon Maloy 
Cc: Ying Xue 
Cc: Jonathan Corbet 
Reviewed-by: Simon Horman 
Link: https://lore.kernel.org/r/20240123051201.24701-1-rdunlap@infradead.org
Signed-off-by: Jakub Kicinski

sock_diag: add module pointer to "struct sock_diag_handler"

2024-01-23T14:13:54+00:00

Following patch is going to use RCU instead of
sock_diag_table_mutex acquisition.

This patch is a preparation, no change of behavior yet.

Signed-off-by: Eric Dumazet 
Reviewed-by: Guillaume Nault 
Reviewed-by: Kuniyuki Iwashima 
Reviewed-by: Willem de Bruijn 
Signed-off-by: Paolo Abeni

tipc: Remove some excess struct member documentation

2023-12-22T23:14:43+00:00

Remove documentation for nonexistent struct members, addressing these
warnings:

  ./net/tipc/link.c:228: warning: Excess struct member 'media_addr' description in 'tipc_link'
  ./net/tipc/link.c:228: warning: Excess struct member 'timer' description in 'tipc_link'
  ./net/tipc/link.c:228: warning: Excess struct member 'refcnt' description in 'tipc_link'
  ./net/tipc/link.c:228: warning: Excess struct member 'proto_msg' description in 'tipc_link'
  ./net/tipc/link.c:228: warning: Excess struct member 'pmsg' description in 'tipc_link'
  ./net/tipc/link.c:228: warning: Excess struct member 'backlog_limit' description in 'tipc_link'
  ./net/tipc/link.c:228: warning: Excess struct member 'exp_msg_count' description in 'tipc_link'
  ./net/tipc/link.c:228: warning: Excess struct member 'reset_rcv_checkpt' description in 'tipc_link'
  ./net/tipc/link.c:228: warning: Excess struct member 'transmitq' description in 'tipc_link'
  ./net/tipc/link.c:228: warning: Excess struct member 'snt_nxt' description in 'tipc_link'
  ./net/tipc/link.c:228: warning: Excess struct member 'deferred_queue' description in 'tipc_link'
  ./net/tipc/link.c:228: warning: Excess struct member 'unacked_window' description in 'tipc_link'
  ./net/tipc/link.c:228: warning: Excess struct member 'next_out' description in 'tipc_link'
  ./net/tipc/link.c:228: warning: Excess struct member 'long_msg_seq_no' description in 'tipc_link'
  ./net/tipc/link.c:228: warning: Excess struct member 'bc_rcvr' description in 'tipc_link'

Signed-off-by: Jonathan Corbet 
Reviewed-by: Randy Dunlap 
Signed-off-by: David S. Miller

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2023-11-23T20:20:58+00:00

Cross-merge networking fixes after downstream PR.

Conflicts:

drivers/net/ethernet/intel/ice/ice_main.c
  c9663f79cd82 ("ice: adjust switchdev rebuild path")
  7758017911a4 ("ice: restore timestamp configuration after device reset")
https://lore.kernel.org/all/20231121211259.3348630-1-anthony.l.nguyen@intel.com/

Adjacent changes:

kernel/bpf/verifier.c
  bb124da69c47 ("bpf: keep track of max number of bpf_loop callback iterations")
  5f99f312bd3b ("bpf: add register bounds sanity checks and sanitization")

Signed-off-by: Jakub Kicinski