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 76BFB388397 for ; Sat, 15 Aug 2026 06:40:02 +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=1786776003; cv=none; b=U87C29jnCAzBFqrUvKWbVkjp52L7BEquLD5BNyX6Px6g66tjdvq5KkFHm9zdG3gSMyRgNkf9P5uDPbfPha06xYBhUOVzsAhPP2z017C4toYtQtQB0uY3LjGTtOrLXsA5OpqD8XLLFbn4MorX89U7fqDdisq3MAOU03ejjTLEaxs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786776003; c=relaxed/simple; bh=V5OnZb84e+3lRCKg4NITIePP0uFwW7FtLiWuKb50OT0=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=S2uLPfFtX0+TvUoGsXKVzajueo498qMk11OIjOfcyA6O+ybl1MEil+bi6UO8L2r0pNv9K/LQUlEAiYRXLL1Nppd9k9QOGTpUm2C4QWSWxyeGugQqECJCVLEGlQB3+KoqYvqeM9z65n43lzTIzgpm27Q5wH3COgyiXvXxt1sEHMc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=1YV1p7vh; 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="1YV1p7vh" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B91B11F000E9; Sat, 15 Aug 2026 06:40:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1786776002; bh=QTmN4T1VWOvye1k02WLeb/aEyEOnTd5y6jDXZe3rICQ=; h=From:To:Cc:Subject:Date:Reply-To; b=1YV1p7vh6p+Q+dF8iMZpBNGS5acB2e6WGF4m2cvTCuFL4MY1fZPrCxEISvWc3YXLE r/Ry/VqXvVOIS+7Bj23CukAy99CZxt8KSs9GLMosLcZ8hc6BNSSvEx6hoKy6TOxXRo SlcXMTE3aqYH2pVXfiu+LeYBhaPBTju9ObrdADFY= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-74427: afs: Fix netns teardown to cancel the preallocation charger Date: Sat, 15 Aug 2026 15:12:34 +0900 Message-ID: <2026081514-CVE-2026-74427-59f7@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=3535; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=bD83te9PTXWGEBVWSEEKPCHzO26USwF90Y4Dik6RdME=; b=owGbwMvMwCRo6H6F97bub03G02pJDFkNjEoiUw40HWxgqvj6VFHq9ekLs0WvVR1hlLsaYWLKM NPYgXl9RywLgyATg6yYIsuXbTxH91ccUvQytD0NM4eVCWQIAxenAEyk04BhQUNeqNQjlQqhD+9L st+872L79XzvOYZ5todE7wplK5VxLbWXO7GjbJ71oUfRAA== 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: afs: Fix netns teardown to cancel the preallocation charger Fix the teardown of an afs network namespace to make sure it cancels the work item that keeps the preallocated rxrpc call/conn/peer queue charged before incoming calls are disabled (i.e. listen 0). Also, if net->live is false because the afs netns is being deleted, make afs_charge_preallocation() skip charging and make afs_rx_new_call() avoid requeuing the charger. (This was found by AI review). The Linux kernel CVE team has assigned CVE-2026-74427 to this issue. Affected and fixed versions =========================== Issue introduced in 4.9 with commit 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 and fixed in 5.10.261 with commit 63ccaf1bdf8be2330f47f9b5b233dd3fd04acbd9 Issue introduced in 4.9 with commit 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 and fixed in 5.15.212 with commit f5096e18b6b7fbd1c2a1942e275a51bcfdfb2ad1 Issue introduced in 4.9 with commit 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 and fixed in 6.1.178 with commit 59e8b7652f6cbfb62d377ead0ad553c1b4e39a7a Issue introduced in 4.9 with commit 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 and fixed in 6.6.145 with commit 85d5fb80fe4f0cc836b6df83f26de204fe102ff7 Issue introduced in 4.9 with commit 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 and fixed in 6.12.97 with commit a33975ff2b6ea47b8f29956403374b1cdd057539 Issue introduced in 4.9 with commit 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 and fixed in 6.18.40 with commit b83ecf80e28afb7b6595ba79932e77ca68a5a83d Issue introduced in 4.9 with commit 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 and fixed in 7.1.5 with commit eec89c5f8e1adc1de4824042ef75f62aed804153 Issue introduced in 4.9 with commit 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 and fixed in 7.2-rc1 with commit 47694fbc9d24ab6bf210f91e8efe06a10a478064 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-2026-74427 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: fs/afs/rxrpc.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/63ccaf1bdf8be2330f47f9b5b233dd3fd04acbd9 https://git.kernel.org/stable/c/f5096e18b6b7fbd1c2a1942e275a51bcfdfb2ad1 https://git.kernel.org/stable/c/59e8b7652f6cbfb62d377ead0ad553c1b4e39a7a https://git.kernel.org/stable/c/85d5fb80fe4f0cc836b6df83f26de204fe102ff7 https://git.kernel.org/stable/c/a33975ff2b6ea47b8f29956403374b1cdd057539 https://git.kernel.org/stable/c/b83ecf80e28afb7b6595ba79932e77ca68a5a83d https://git.kernel.org/stable/c/eec89c5f8e1adc1de4824042ef75f62aed804153 https://git.kernel.org/stable/c/47694fbc9d24ab6bf210f91e8efe06a10a478064