From: Kuniyuki Iwashima <kuniyu@google.com>
To: David Ahern <dsahern@kernel.org>,
Ido Schimmel <idosch@nvidia.com>,
"David S . Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>,
Paolo Abeni <pabeni@redhat.com>
Cc: Simon Horman <horms@kernel.org>, Amit Cohen <amcohen@nvidia.com>,
Jiri Pirko <jiri@resnulli.us>,
Kuniyuki Iwashima <kuniyu@google.com>,
Kuniyuki Iwashima <kuni1840@gmail.com>,
netdev@vger.kernel.org
Subject: [PATCH v1 net 0/2] net: fib: Fix two use-after-free in drivers during RCU dump.
Date: Wed, 10 Jun 2026 06:17:17 +0000 [thread overview]
Message-ID: <20260610061744.2030996-1-kuniyu@google.com> (raw)
syzbot reported fib_info UAF in netdevsim, and the same bug
exists in rocker and mlxsw.
Patch 1 fixes it, and Patch 2 fixes the same type of bug of
fib_rule.
Kuniyuki Iwashima (2):
ipv4: fib: Don't dump dying fib_info in fib_leaf_notify().
net: fib_rules: Don't dump dying fib_rule in fib_rules_dump().
include/net/fib_rules.h | 5 +++++
include/net/ip_fib.h | 5 +++++
net/core/fib_rules.c | 6 +++++-
net/ipv4/fib_trie.c | 4 ++++
4 files changed, 19 insertions(+), 1 deletion(-)
--
2.54.0.1099.g489fc7bff1-goog
next reply other threads:[~2026-06-10 6:17 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-10 6:17 Kuniyuki Iwashima [this message]
2026-06-10 6:17 ` [PATCH v1 net 1/2] ipv4: fib: Don't dump dying fib_info in fib_leaf_notify() Kuniyuki Iwashima
2026-06-10 6:17 ` [PATCH v1 net 2/2] net: fib_rules: Don't dump dying fib_rule in fib_rules_dump() Kuniyuki Iwashima
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