From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1B0054CA773 for ; Fri, 4 Sep 2026 15:20:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788535241; cv=none; b=XMgUTbldomAPe18ZbO4QkRD3uyx4wElw2ltgdDdN3KMCDLZG/gIdUyrZG7ZCkcmA0crjbdgxGrG13fK9JrlUrHehh3ZA7UXkOOO6wGqs/Oq8jUGe3YRk4r3iyse2Epy18KjoGM3dZOXm1yqTOhtnchHajejt+9x10lCqVnkLcQQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788535241; c=relaxed/simple; bh=nv/uWGKdbMjDuFBb+2+Ns24HQ5EwqEwCS29nt057zps=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=YRPkVMBAk01D1kysr8yEsNBNEjfaQaOb8PzNBzTBrK8iplXUpvBmKOuEX9xD1snT40DwZrldzKUmTc9dASwLxOnpZIMi3rMkq9E+AqZOYLMle2Vvv69RGSj7oelA6GC/gh/5H78p1vf28ewSSv9OnvJrCxPRLqWYLv2dh6sabEI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=LI32855m; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="LI32855m" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 51C641F00A3D; Fri, 4 Sep 2026 15:20:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1788535240; bh=ZZhbZjn/rtSU12wDQ+m74nQTmNnCkBKibRK9s9UR2JQ=; h=From:To:Cc:Subject:Date:Reply-To; b=LI32855mjlUo864OQoTK6p9zONZAVBFAxyDUH0iboFiMzSP4zpX1fHgHpqPKQwxJl 9uwCY85EoiYrMTH5fb8nDqpz/v4yyd8lACpWjzbMSlxrgEapHmrn0Fe8tOJnUgH/m5 7yJNJlgiXbMitfmQnl25uvaPxAufxB/oWK/jA+8k= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-80797: nfc: pn533: purge fragmented skbs during cleanup Date: Fri, 4 Sep 2026 17:11:36 +0200 Message-ID: <2026090408-CVE-2026-80797-7839@gregkh> X-Mailer: git-send-email 2.55.0 Reply-To: , Precedence: bulk X-Mailing-List: linux-cve-announce@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=3889; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=gDBS7AJ2oMURy6ilj0riYbafOlKcZ9P1lkg8hZfyegM=; b=owGbwMvMwCRo6H6F97bub03G02pJDFmz7veoczRLT794bA9vxAVbj6k+c1KNym4f+D5vM4uTJ ktXQfnjjlgWBkEmBlkxRZYv23iO7q84pOhlaHsaZg4rE8gQBi5OAZjIAhOGeRrGj1bMFapbWHKo 0vK578xa5zQGW4YFM5TjpuVVLHjH2MIWfOLW459e6uz5AA== X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Content-Transfer-Encoding: 8bit From: Greg Kroah-Hartman Description =========== In the Linux kernel, the following vulnerability has been resolved: nfc: pn533: purge fragmented skbs during cleanup pn53x_common_clean() purges resp_q before freeing the common PN533 state, but it leaves fragment_skb untouched. The fragmentation helpers queue transmit fragments there while sending large initiator or target-mode frames, and those skbs remain owned by the driver until they are sent or discarded. If the device is removed while fragments are still queued, the common cleanup path frees the PN533 state without releasing the queued fragment skbs, leaking them. Purge fragment_skb during cleanup alongside resp_q. The Linux kernel CVE team has assigned CVE-2026-80797 to this issue. Affected and fixed versions =========================== Issue introduced in 3.12 with commit 963a82e07d4e1f95fc423d53912ac0a7fe643b1c and fixed in 5.10.267 with commit 130b5ad4492f8e53d0398ee3af2b0e2388504d11 Issue introduced in 3.12 with commit 963a82e07d4e1f95fc423d53912ac0a7fe643b1c and fixed in 5.15.218 with commit 9319c3c4962efc8697246b563ea31c6d47f085aa Issue introduced in 3.12 with commit 963a82e07d4e1f95fc423d53912ac0a7fe643b1c and fixed in 6.1.185 with commit d63e85c5d5555fe6aa65155d3a09452597e163c3 Issue introduced in 3.12 with commit 963a82e07d4e1f95fc423d53912ac0a7fe643b1c and fixed in 6.6.154 with commit 4a52ec2457ff8c26206fcc20fa1972cc35a678c4 Issue introduced in 3.12 with commit 963a82e07d4e1f95fc423d53912ac0a7fe643b1c and fixed in 6.12.106 with commit e169277281373818ae1cedf976aa1e99118fb77d Issue introduced in 3.12 with commit 963a82e07d4e1f95fc423d53912ac0a7fe643b1c and fixed in 6.18.47 with commit 2f5d093194ec24d7c29b91bf7df014924e0f4ea1 Issue introduced in 3.12 with commit 963a82e07d4e1f95fc423d53912ac0a7fe643b1c and fixed in 7.1.11 with commit e7ed2ea5590fbe2d3be39ee4fb0c758a12e31d0c Issue introduced in 3.12 with commit 963a82e07d4e1f95fc423d53912ac0a7fe643b1c and fixed in 7.2.1 with commit e95beff58b38c871c557bf84e528408283c2c0ad Issue introduced in 3.12 with commit 963a82e07d4e1f95fc423d53912ac0a7fe643b1c and fixed in 7.3-rc1 with commit 5718fc62198c38c2de5316020a90506f9e75e0bb Please see https://www.kernel.org for a full list of currently supported kernel versions by the kernel community. Unaffected versions might change over time as fixes are backported to older supported kernel versions. The official CVE entry at https://cve.org/CVERecord/?id=CVE-2026-80797 will be updated if fixes are backported, please check that for the most up to date information about this issue. Affected files ============== The file(s) affected by this issue are: drivers/nfc/pn533/pn533.c Mitigation ========== The Linux kernel CVE team recommends that you update to the latest stable kernel version for this, and many other bugfixes. Individual changes are never tested alone, but rather are part of a larger kernel release. Cherry-picking individual commits is not recommended or supported by the Linux kernel community at all. If however, updating to the latest release is impossible, the individual changes to resolve this issue can be found at these commits: https://git.kernel.org/stable/c/130b5ad4492f8e53d0398ee3af2b0e2388504d11 https://git.kernel.org/stable/c/9319c3c4962efc8697246b563ea31c6d47f085aa https://git.kernel.org/stable/c/d63e85c5d5555fe6aa65155d3a09452597e163c3 https://git.kernel.org/stable/c/4a52ec2457ff8c26206fcc20fa1972cc35a678c4 https://git.kernel.org/stable/c/e169277281373818ae1cedf976aa1e99118fb77d https://git.kernel.org/stable/c/2f5d093194ec24d7c29b91bf7df014924e0f4ea1 https://git.kernel.org/stable/c/e7ed2ea5590fbe2d3be39ee4fb0c758a12e31d0c https://git.kernel.org/stable/c/e95beff58b38c871c557bf84e528408283c2c0ad https://git.kernel.org/stable/c/5718fc62198c38c2de5316020a90506f9e75e0bb