From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 316872D837E; Sun, 1 Mar 2026 01:49:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772329741; cv=none; b=QJ9hlzXoTFyAhD3/7hH51cViqXP3Qy2id4ditDJVLQ+yZP6lpTaR3reSA967+1x2jmuLCFHSSa/lt4dxXqQxmyhJ/2E2MD75iBmMb7vL/FKhC85Soh444jeRBOQo9rvA3octzADRjSmn0GAZjzN394bxNHqLk06ABhx3O2BpY3g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772329741; c=relaxed/simple; bh=1v5VOec4mPL2m0hJuGIj42Rm/Fdy7QBXm4L3bn/wd/0=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=u3KT9vn/0RPK6Ysk3NSk0cXrfsPr+1xqEugGCB/AMi93KMmYwpZA6rMqb2Cel+Nr+M0nw3RCw5s8zHAdaPl2YwHaUpO8vD/ZpWb2getnQ/PLskoDaRstZoR4Xv3aUMNyQNdlSgfdJ9HVkKoly3YnS1/Ne0irlpRNJqffbQ8afmY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=NqATBNtv; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="NqATBNtv" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7CE7DC19424; Sun, 1 Mar 2026 01:49:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772329741; bh=1v5VOec4mPL2m0hJuGIj42Rm/Fdy7QBXm4L3bn/wd/0=; h=From:To:Cc:Subject:Date:From; b=NqATBNtvuX+4tz0pQCuupduPpnkoK7VmbBbBoIJxxJ4jD2omeB8mqLsJAtth8oR5Y ekkjbK7ZfA9NfXWjd6KFid1jUHr50L736iSJL5otw7lJ1JPWP0yKToAxKQQsHvAY1c 5oAjLPmEUYFP3CQ1SVKDyw7IH/je9/8AA74gOCbvpL+tO2es1Kcd95sCuseMKj+PvG uTTQr+w9vRIZRg2zGFw2rqgXy3/nDNAy7y91xr8Y+s5VcDer/v1UpGrLaofLpuDFjV XIZ5th7Dfnex1Xh+eZOVCm/GV/T7Byv36ow9i0ajDFRAGU0CYjl+eT85NqSth/RSoE PeqOWcMBDyMeA== From: Sasha Levin To: stable@vger.kernel.org, ebiggers@kernel.org Cc: Sami Tolvanen , Mikulas Patocka , dm-devel@lists.linux.dev Subject: FAILED: Patch "dm-verity: correctly handle dm_bufio_client_create() failure" failed to apply to 5.15-stable tree Date: Sat, 28 Feb 2026 20:48:59 -0500 Message-ID: <20260301014859.1713290-1-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 Precedence: bulk X-Mailing-List: dm-devel@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Hint: ignore X-stable: review Content-Transfer-Encoding: 8bit The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . Thanks, Sasha ------------------ original commit in Linus's tree ------------------ >From 119f4f04186fa4f33ee6bd39af145cdaff1ff17f Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Fri, 19 Dec 2025 11:29:08 -0800 Subject: [PATCH] dm-verity: correctly handle dm_bufio_client_create() failure If either of the calls to dm_bufio_client_create() in verity_fec_ctr() fails, then dm_bufio_client_destroy() is later called with an ERR_PTR() argument. That causes a crash. Fix this. Fixes: a739ff3f543a ("dm verity: add support for forward error correction") Cc: stable@vger.kernel.org Reviewed-by: Sami Tolvanen Signed-off-by: Eric Biggers Signed-off-by: Mikulas Patocka --- drivers/md/dm-verity-fec.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/md/dm-verity-fec.c b/drivers/md/dm-verity-fec.c index ef9970b889aaf..7583607a8aa62 100644 --- a/drivers/md/dm-verity-fec.c +++ b/drivers/md/dm-verity-fec.c @@ -501,9 +501,9 @@ void verity_fec_dtr(struct dm_verity *v) mempool_exit(&f->output_pool); kmem_cache_destroy(f->cache); - if (f->data_bufio) + if (!IS_ERR_OR_NULL(f->data_bufio)) dm_bufio_client_destroy(f->data_bufio); - if (f->bufio) + if (!IS_ERR_OR_NULL(f->bufio)) dm_bufio_client_destroy(f->bufio); if (f->dev) -- 2.51.0