From: Martin Schiller <ms@dev.tdt.de>
To: "David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Simon Horman <horms@kernel.org>
Cc: Yiming Qian <yimingqian591@gmail.com>,
linux-x25@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, security@kernel.org,
Martin Schiller <ms@dev.tdt.de>
Subject: [PATCH net v4 0/2] net/x25: Fix overflow and double free
Date: Tue, 31 Mar 2026 09:43:16 +0200 [thread overview]
Message-ID: <20260331-x25_fraglen-v4-0-3e69f18464b4@dev.tdt.de> (raw)
This patch set includes 2 fixes:
The first removes a potential double free of received skb
The second fixes an overflow when accumulating packets with the more-bit
set.
Signed-off-by: Martin Schiller <ms@dev.tdt.de>
---
Changes in v4:
- Do not call skb_free(skb) in case of overflow
- Add another patch to fix potential double free if alloc_skb fails
- Link to v3: https://lore.kernel.org/r/20260330-x25_fraglen-v3-1-5a8938465cfe@dev.tdt.de
Changes in v3:
- Added missing Cc: Simon Horman <horms@kernel.org>
- Added missing Fixes tag
- Replaced `Reported-by:` by `Suggested-by:`, because I cannot give an
URL to the required `Closes:` tag
- Link to v2: https://lore.kernel.org/r/20260327-x25_fraglen-v2-1-143911c3f62a@dev.tdt.de
Changes in v2:
- Use USHRT_MAX instead of sizeof(fraglen) nonsense
- Link to v1: https://lore.kernel.org/r/20260327-x25_fraglen-v1-1-9fc751d4f754@dev.tdt.de
---
Martin Schiller (2):
net/x25: Fix potential double free of skb
net/x25: Fix overflow when accumulating packets
net/x25/x25_in.c | 9 ++++++---
net/x25/x25_subr.c | 1 +
2 files changed, 7 insertions(+), 3 deletions(-)
---
base-commit: a142d139168cce8d5776245b5494c7f7f5d7fb7d
change-id: 20260325-x25_fraglen-8fc240d1edd3
Best regards,
--
Martin Schiller <ms@dev.tdt.de>
next reply other threads:[~2026-03-31 7:43 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-31 7:43 Martin Schiller [this message]
2026-03-31 7:43 ` [PATCH net v4 1/2] net/x25: Fix potential double free of skb Martin Schiller
2026-03-31 7:43 ` [PATCH net v4 2/2] net/x25: Fix overflow when accumulating packets Martin Schiller
2026-04-02 11:50 ` [PATCH net v4 0/2] net/x25: Fix overflow and double free patchwork-bot+netdevbpf
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20260331-x25_fraglen-v4-0-3e69f18464b4@dev.tdt.de \
--to=ms@dev.tdt.de \
--cc=davem@davemloft.net \
--cc=edumazet@google.com \
--cc=horms@kernel.org \
--cc=kuba@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-x25@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=pabeni@redhat.com \
--cc=security@kernel.org \
--cc=yimingqian591@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox