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Miller" , Stanimir Varbanov , Eneas U de Queiroz , Kuldeep Singh , Eric Biggers Cc: linux-crypto@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, brgl@kernel.org, Bartosz Golaszewski , stable@vger.kernel.org X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1563; i=bartosz.golaszewski@oss.qualcomm.com; h=from:subject:message-id; bh=+jSSnKBCewKu2gGq3nZqT1p+QKl0eV9583wFNZZdHdE=; b=owEBbQKS/ZANAwAKAQWdLsv/NoTDAcsmYgBqMsIch8tpiBStthDAUU24QVMgye77JzbUAq5Op qWCBpfAnlmJAjMEAAEKAB0WIQSR5RMt5bVGHXuiZfwFnS7L/zaEwwUCajLCHAAKCRAFnS7L/zaE w+39D/wM+9RDENz4MqxtM2MPVmtn6p2LDKcYrIUoafXXJuRjUfaefZrg7OUwKEMkF4IZjJ5R8fR LjOJlT3RcYLFe58nFc0SiC10sTCXBuZzJ/6vYWkRFw8SUsvr8dyBTCbD+MiOpQWTx8zU8+3wjbe YhXZ4kCYcYSnRlnJMLGuP0U+0cczoJCTm+x9NxYo4+HifutPKIloCdlXJSedI1xX5PKkUWiivlF ggUJ7/haBIpR4/t1s8lFNLa/25Ony0gJwCojf2sK1i9/At68oNXYnEMBMteZCmU9WQeszMVc2dk PJxKiC12gy2bm/jrEA7i+zCxClqUlfLk5KGCutTRGu5dltmvol8xd73aEB5aqx5sSAOy9jYZnvM /9fj2aRLKSg4rFWeCxff9Y3gTLM0SwIYE0p2gOJ6KLU+1XXGSsIx0KCT2f2TJNhiCg13hbu9Tfx SS9OHW2jrBo+k/2RA9qXUIsiSTgbprvpE5SNupDBrUoVnjuLEVoGOeDZ6D0+rbHBdW6Rqw2KXoU atEUfQ426HPuaF76wThsq6uO/o4FNZbpLPJva+SfRz0N25iFG0RrvVyP6F8Y6PqibELUc23zbh7 3I3OUmWR5K+NlT6C80VzOCoJG0/TP31QRdpg2zsqO/9Qrt0qt6moKK/WyJtLsaTq9bVivnTcBVB sKu4nxWFnmb7gbQ== X-Developer-Key: i=bartosz.golaszewski@oss.qualcomm.com; a=openpgp; fpr=169DEB6C0BC3C46013D2C79F11A72EA01471D772 X-Proofpoint-Spam-Info: AW1haW4tMjYwNjE3MDE1MSBTYWx0ZWRfXzDlDw5JuJsuA gKkXuI9c4xuP24w04WHseqk1fHQong9JmoA9iPeJZh3oh1ay0J7TDlKEJ67NJHDqeoseBJAK6y+ zJ2npnVG/fyj/zx5y/J+m8cUgGjslyg= X-Proofpoint-GUID: MD4FH8f2mcew4f4CXfzlRfr-uWuLlVbm X-Authority-Analysis: v=2.4 cv=d4fFDxjE c=1 sm=1 tr=0 ts=6a32c230 cx=c_pps a=KB4UBwrhAZV1kjiGHFQexw==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=FelO9ux0wxsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=rJkE3RaqiGZ5pbrm-msn:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=dx2SfONCXZg6tt9xEGkA:9 a=QEXdDO2ut3YA:10 a=o1xkdb1NAhiiM49bd1HK:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjE3MDE1MSBTYWx0ZWRfX29R9FHvk3O/a +w6lu0O8KESr2ZfqO2eFF55VRGIzJj2dSBAFGhKOzYtmSFap6igxCKHhVujq98tXbW3DN0uuRaN TKVLBlfwwCi8oQrKMMnS2sFyYhHCY0ENd3HoKT91GM3drnlVmnRVjO9U/dlup+n83rIIfrm2iJF uKva79QBZg+YDqhPmkCUoQr05P9E+H3q68/n+RO4cdHXXA1aRhEMJ/SORq015cFxYnthlPqXZlG 2GvsrsRa49hMLAwA9sesd5nxbhV7jNDbvJO9HxD1SboWGfyOAZqF9T2tDqEbcBPu+exRCtRZd0x SIVrM+MU4VNwr5jay7xEXSptgyavFgCPbSyMhTI2niQh9ZMokuv0fBxYl3hAJJJARqv5tWZhRzV +BE2U6IxLjQve1Qu/RoVOx8MhuleXUfrIFXojgW+GQO6Ja62C2fBQpBjK/6IqmTKMFYVqkIcHlP RN8KOffJHrHVFi58njA== X-Proofpoint-ORIG-GUID: MD4FH8f2mcew4f4CXfzlRfr-uWuLlVbm X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-06-17_02,2026-06-17_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 suspectscore=0 malwarescore=0 lowpriorityscore=0 phishscore=0 bulkscore=0 clxscore=1015 adultscore=0 spamscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2606170151 CCM builds on AES-CTR for encryption, and the crypto engine stalls on a partial final block just as it does for plain ctr(aes): a payload whose length is not a multiple of the AES block size leaves the operation incomplete and fails with a hardware operation error. This was caught by the ccm(aes) crypto self-tests. Force the software fallback for CCM requests whose message length is not block aligned, reusing the driver's existing need_fallback mechanism. Cc: stable@vger.kernel.org Fixes: 9363efb4181c ("crypto: qce - Add support for AEAD algorithms") Signed-off-by: Bartosz Golaszewski --- drivers/crypto/qce/aead.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/crypto/qce/aead.c b/drivers/crypto/qce/aead.c index 336614a11377e0be246817da584296124f4de5d8..4fa018204cb628c112f64c45ff6c7407df73b945 100644 --- a/drivers/crypto/qce/aead.c +++ b/drivers/crypto/qce/aead.c @@ -514,6 +514,14 @@ static int qce_aead_crypt(struct aead_request *req, int encrypt) ctx->need_fallback = true; } + /* + * CCM uses AES-CTR internally and the CE stalls on a partial final + * block, so a payload that is not a multiple of the block size has to + * be handled by the fallback. + */ + if (IS_CCM(rctx->flags) && !IS_ALIGNED(rctx->cryptlen, AES_BLOCK_SIZE)) + ctx->need_fallback = true; + /* If fallback is needed, schedule and exit */ if (ctx->need_fallback) { /* Reset need_fallback in case the same ctx is used for another transaction */ -- 2.47.3