From e873c74132f0c5f1452816cd9bb26208f0bba1e1 Mon Sep 17 00:00:00 2001 From: Shivank Garg Date: Sat, 22 Aug 2026 19:22:05 +0000 Subject: dmaengine: fix use-after-free in dma_chan_put() and dma_release_channel() When dma_device_put() drops the last reference on chan->device->ref, dma_device_release() runs and may free the dma_device along with its channels. dma_chan_put() then still reads chan->device->owner via dma_chan_to_owner() for the trailing module_put(). KASAN catches it: slab-use-after-free in dma_chan_put+0x3e6/0x4c0 Read of size 8 by task insmod/6319 Freed by task 6319: kfree+0x225/0x470 dma_chan_put+0x395/0x4c0 dmaengine_put+0xf8/0x160 Cache the module owner in dma_chan_put() before the put so the trailing module_put() does not need chan->device. Fixes: 8ad342a86359 ("dmaengine: Add reference counting to dma_device struct") Suggested-by: Sashiko Link: https://sashiko.dev/#/patchset/20260518-dmaengine-kref-fix-v1-1-4d6125048fb7@amd.com Reviewed-by: Frank Li Reviewed-by: Logan Gunthorpe Signed-off-by: Shivank Garg Link: https://patch.msgid.link/20260822-dmaengine-kref-fix-v5-3-d4a4ee47d927@amd.com Signed-off-by: Vinod Koul --- drivers/crypto/Makefile | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 drivers/crypto/Makefile (limited to 'drivers/crypto/Makefile') diff --git a/drivers/crypto/Makefile b/drivers/crypto/Makefile new file mode 100644 index 000000000..2c33b83f3 --- /dev/null +++ b/drivers/crypto/Makefile @@ -0,0 +1,48 @@ +# SPDX-License-Identifier: GPL-2.0 +obj-$(CONFIG_CRYPTO_DEV_ALLWINNER) += allwinner/ +obj-$(CONFIG_CRYPTO_DEV_ASPEED) += aspeed/ +obj-$(CONFIG_CRYPTO_DEV_ATMEL_AES) += atmel-aes.o +obj-$(CONFIG_CRYPTO_DEV_ATMEL_SHA) += atmel-sha.o +obj-$(CONFIG_CRYPTO_DEV_ATMEL_TDES) += atmel-tdes.o +# __init ordering requires atmel-i2c being before atmel-ecc and atmel-sha204a. +obj-$(CONFIG_CRYPTO_DEV_ATMEL_I2C) += atmel-i2c.o +obj-$(CONFIG_CRYPTO_DEV_ATMEL_ECC) += atmel-ecc.o +obj-$(CONFIG_CRYPTO_DEV_ATMEL_SHA204A) += atmel-sha204a.o +obj-$(CONFIG_CRYPTO_DEV_CCP) += ccp/ +obj-$(CONFIG_CRYPTO_DEV_CCREE) += ccree/ +obj-$(CONFIG_CRYPTO_DEV_CHELSIO) += chelsio/ +obj-$(CONFIG_CRYPTO_DEV_FSL_CAAM_COMMON) += caam/ +obj-$(CONFIG_CRYPTO_DEV_GEODE) += geode-aes.o +obj-$(CONFIG_CRYPTO_DEV_HIFN_795X) += hifn_795x.o +obj-$(CONFIG_CRYPTO_DEV_IMGTEC_HASH) += img-hash.o +obj-$(CONFIG_CRYPTO_DEV_MARVELL) += marvell/ +obj-$(CONFIG_CRYPTO_DEV_MXS_DCP) += mxs-dcp.o +obj-$(CONFIG_CRYPTO_DEV_NX) += nx/ +obj-$(CONFIG_CRYPTO_DEV_OMAP) += omap-crypto.o +obj-$(CONFIG_CRYPTO_DEV_OMAP_AES) += omap-aes-driver.o +omap-aes-driver-objs := omap-aes.o omap-aes-gcm.o +obj-$(CONFIG_CRYPTO_DEV_OMAP_DES) += omap-des.o +obj-$(CONFIG_CRYPTO_DEV_OMAP_SHAM) += omap-sham.o +obj-$(CONFIG_CRYPTO_DEV_PADLOCK_AES) += padlock-aes.o +obj-$(CONFIG_CRYPTO_DEV_PADLOCK_SHA) += padlock-sha.o +obj-$(CONFIG_CRYPTO_DEV_PPC4XX) += amcc/ +obj-$(CONFIG_CRYPTO_DEV_QCE) += qce/ +obj-$(CONFIG_CRYPTO_DEV_ROCKCHIP) += rockchip/ +obj-$(CONFIG_CRYPTO_DEV_S5P) += s5p-sss.o +obj-$(CONFIG_CRYPTO_DEV_SA2UL) += sa2ul.o +obj-$(CONFIG_CRYPTO_DEV_SAHARA) += sahara.o +obj-$(CONFIG_CRYPTO_DEV_SL3516) += gemini/ +obj-y += stm32/ +obj-$(CONFIG_CRYPTO_DEV_TALITOS) += talitos.o +obj-$(CONFIG_CRYPTO_DEV_TEGRA) += tegra/ +obj-$(CONFIG_CRYPTO_DEV_VIRTIO) += virtio/ +obj-$(CONFIG_CRYPTO_DEV_BCM_SPU) += bcm/ +obj-y += inside-secure/ +obj-$(CONFIG_CRYPTO_DEV_ARTPEC6) += axis/ +obj-y += xilinx/ +obj-y += hisilicon/ +obj-$(CONFIG_CRYPTO_DEV_AMLOGIC_GXL) += amlogic/ +obj-y += intel/ +obj-y += starfive/ +obj-y += cavium/ +obj-y += ti/ -- cgit v1.3.1