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Sven Eckelmann f80d3d98d2
batman-adv: bla: avoid NULL-ptr deref for claim via dropped interface 
Without rtnl_lock held, a hardif might be retrieved as primary interface of
a meshif, but then (while operating on this interface) getting decoupled
from the mesh interface. In this case, the meshif still exists but the
pointer from the primary hardif to the meshif is set to NULL.

The mesh_iface must be checked first to be non-NULL before continuing to
send an ARP request using meshif.

Cc: stable@kernel.org
Fixes: 23721387c4 ("batman-adv: add basic bridge loop avoidance code")
Reported-by: Ido Schimmel <idosch@nvidia.com>
Reported-by: syzbot+9fdcc9f05a98a540b816@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=9fdcc9f05a98a540b816
Signed-off-by: Sven Eckelmann <sven@narfation.org>
 		2026-05-19 10:43:54 +02:00
..
6lowpan
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9p Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
802 Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
8021q Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
appletalk Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
atm Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-03-19 14:16:00 -07:00
ax25 net: change sock.sk_ino and sock_i_ino() to u64 2026-03-06 14:31:26 +01:00
batman-adv batman-adv: bla: avoid NULL-ptr deref for claim via dropped interface 2026-05-19 10:43:54 +02:00
bluetooth Networking changes for 7.1. 2026-04-14 18:36:10 -07:00
bpf bpf: reject short IPv4/IPv6 inputs in bpf_prog_test_run_skb 2026-04-12 15:42:57 -07:00
bridge net: bridge: add stp_mode attribute for STP mode selection 2026-04-10 15:52:24 -07:00
caif net: caif: clear client service pointer on teardown 2026-04-14 13:21:54 +02:00
can Networking changes for 7.1. 2026-04-14 18:36:10 -07:00
ceph libceph: Fix potential out-of-bounds access in ceph_handle_auth_reply() 2026-03-11 10:18:56 +01:00
core Networking changes for 7.1. 2026-04-14 18:36:10 -07:00
dcb Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
devlink Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-04-09 13:20:59 -07:00
dns_resolver net: Add SPDX ids to some source files 2026-03-09 18:32:45 -07:00
dsa net: dsa: tag_rtl8_4: set KEEP flag 2026-04-12 09:03:55 -07:00
ethernet bonding: prevent potential infinite loop in bond_header_parse() 2026-03-16 19:29:45 -07:00
ethtool ethtool: strset: check nla_len overflow 2026-04-12 11:23:50 -07:00
handshake treewide: Replace kmalloc with kmalloc_obj for non-scalar types 2026-02-21 01:02:28 -08:00
hsr net: hsr: emit notification for PRP slave2 changed hw addr on port deletion 2026-04-07 17:06:16 +02:00
ieee802154 net: remove addr_len argument of recvmsg() handlers 2026-03-02 18:17:17 -08:00
ife
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ipv4 Networking changes for 7.1. 2026-04-14 18:36:10 -07:00
ipv6 Networking changes for 7.1. 2026-04-14 18:36:10 -07:00
iucv net/iucv: Add missing kernel-doc return value descriptions 2026-03-31 20:14:56 -07:00
kcm kcm: fix zero-frag skb in frag_list on partial sendmsg error 2026-02-23 17:26:55 -08:00
key vfs-7.1-rc1.kino 2026-04-13 12:19:01 -07:00
l2tp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-04-09 13:20:59 -07:00
l3mdev
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lapb treewide: Replace kmalloc with kmalloc_obj for non-scalar types 2026-02-21 01:02:28 -08:00
llc treewide: Replace kmalloc with kmalloc_obj for non-scalar types 2026-02-21 01:02:28 -08:00
mac80211 Networking changes for 7.1. 2026-04-14 18:36:10 -07:00
mac802154 bonding: prevent potential infinite loop in bond_header_parse() 2026-03-16 19:29:45 -07:00
mctp net: mctp: defer creation of dst after source-address check 2026-04-06 18:06:47 -07:00
mpls Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-04-02 11:03:13 -07:00
mptcp net: use get_random_u{16,32,64}() where appropriate 2026-04-09 19:27:43 -07:00
ncsi net: ncsi: fix skb leak in error paths 2026-03-06 17:34:48 -08:00
netfilter netfilter: require Ethernet MAC header before using eth_hdr() 2026-04-10 12:16:27 +02:00
netlabel Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
netlink Networking changes for 7.1. 2026-04-14 18:36:10 -07:00
netrom treewide: change inode->i_ino from unsigned long to u64 2026-03-06 14:31:28 +01:00
nfc NFC: digital: Bounds check NFC-A cascade depth in SDD response handler 2026-04-12 11:40:45 -07:00
nsh
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openvswitch net: use get_random_u{16,32,64}() where appropriate 2026-04-09 19:27:43 -07:00
packet Networking changes for 7.1. 2026-04-14 18:36:10 -07:00
phonet Networking changes for 7.1. 2026-04-14 18:36:10 -07:00
psample treewide: Replace kmalloc with kmalloc_obj for non-scalar types 2026-02-21 01:02:28 -08:00
psp net: remove EXPORT_IPV6_MOD() and EXPORT_IPV6_MOD_GPL() macros 2026-03-29 11:21:22 -07:00
qrtr Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-04-14 12:04:00 -07:00
rds Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-04-14 12:04:00 -07:00
rfkill net: rfkill: prevent unlimited numbers of rfkill events from being created 2026-04-07 12:35:04 +02:00
rose Networking changes for 7.1. 2026-04-14 18:36:10 -07:00
rxrpc Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-04-09 13:20:59 -07:00
sched Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-04-14 12:04:00 -07:00
sctp Networking changes for 7.1. 2026-04-14 18:36:10 -07:00
shaper net: shaper: protect from late creation of hierarchy 2026-03-19 13:47:15 +01:00
smc net/smc: fix double-free of smc_spd_priv when tee() duplicates splice pipe buffer 2026-03-20 18:59:30 -07:00
strparser net: strparser: fix skb_head leak in strp_abort_strp() 2026-04-14 12:37:00 +02:00
sunrpc kernfs: pass struct ns_common instead of const void * for namespace tags 2026-04-09 14:36:52 +02:00
switchdev bridge: No DEV_PATH_BR_VLAN_UNTAG_HW for dsa foreign 2026-03-19 13:14:00 +01:00
tipc net: use get_random_u{16,32,64}() where appropriate 2026-04-09 19:27:43 -07:00
tls Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-04-09 13:20:59 -07:00
unix Networking changes for 7.1. 2026-04-14 18:36:10 -07:00
vmw_vsock Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-04-14 12:04:00 -07:00
wireless Networking changes for 7.1. 2026-04-14 18:36:10 -07:00
x25 vfs-7.1-rc1.kino 2026-04-13 12:19:01 -07:00
xdp Networking changes for 7.1. 2026-04-14 18:36:10 -07:00
xfrm Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-04-09 13:20:59 -07:00
Kconfig
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Kconfig.debug
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Makefile
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compat.c
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devres.c
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socket.c Networking changes for 7.1. 2026-04-14 18:36:10 -07:00
sysctl_net.c
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