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Vulnerability · Published Oct 22, 2025 · Assigned by Linux

CVE-2023-53693USB: gadget: Fix the memory leak in raw_gadget driver

Unrated

In plain English

A security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS )–Not rated
Exploit odds (30 days)0.2%top 88.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: USB: gadget: Fix the memory leak in raw_gadget driver Currently, increasing raw_dev->count happens before invoke the raw_queue_event(), if the raw_queue_event() return error, invoke raw_release() will not trigger the dev_free() to be called. [ 268.905865][ T5067] raw-gadget.0 gadget.0: failed to queue event [ 268.912053][ T5067] udc dummy_udc.0: failed to start USB Raw Gadget: -12 [ 268.918885][ T5067] raw-gadget.0: probe of gadget.0 failed with error -12 [ 268.925956][ T5067] UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy [ 268.934657][ T5067] misc raw-gadget: fail, usb_gadget_register_driver returned -16 BUG: memory leak [<ffffffff8154bf94>] kmalloc_trace+0x24/0x90 mm/slab_common.c:1076 [<ffffffff8347eb55>] kmalloc include/linux/slab.h:582 [inline] [<ffffffff8347eb55>] kzalloc include/linux/slab.h:703 [inline] [<ffffffff8347eb55>] dev_new drivers/usb/gadget/legacy/raw_gadget.c:191 [inline] [<ffffffff8347eb55>] raw_open+0x45/0x110 drivers/usb/gadget/legacy/raw_gadget.c:385 [<ffffffff827d1d09>] misc_open+0x1a9/0x1f0 drivers/char/misc.c:165 [<ffffffff8154bf94>] kmalloc_trace+0x24/0x90 mm/slab_common.c:1076 [<ffffffff8347cd2f>] kmalloc include/linux/slab.h:582 [inline] [<ffffffff8347cd2f>] raw_ioctl_init+0xdf/0x410 drivers/usb/gadget/legacy/raw_gadget.c:460 [<ffffffff8347dfe9>] raw_ioctl+0x5f9/0x1120 drivers/usb/gadget/legacy/raw_gadget.c:1250 [<ffffffff81685173>] vfs_ioctl fs/ioctl.c:51 [inline] [<ffffffff8154bf94>] kmalloc_trace+0x24/0x90 mm/slab_common.c:1076 [<ffffffff833ecc6a>] kmalloc include/linux/slab.h:582 [inline] [<ffffffff833ecc6a>] kzalloc include/linux/slab.h:703 [inline] [<ffffffff833ecc6a>] dummy_alloc_request+0x5a/0xe0 drivers/usb/gadget/udc/dummy_hcd.c:665 [<ffffffff833e9132>] usb_ep_alloc_request+0x22/0xd0 drivers/usb/gadget/udc/core.c:196 [<ffffffff8347f13d>] gadget_bind+0x6d/0x370 drivers/usb/gadget/legacy/raw_gadget.c:292 This commit therefore invoke kref_get() under the condition that raw_queue_event() return success.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.52-1DEBIAN-CVE-2023-53693
Debian:13linux6.4.11-1DEBIAN-CVE-2023-53693
Debian:14linux6.4.11-1DEBIAN-CVE-2023-53693
Ubuntu:22.04:LTSlinux5.15.0-88.98UBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-aws5.15.0-1049.54UBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-azure5.15.0-1051.59UBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-53693
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1051.59.1UBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-gcp5.15.0-1046.54UBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-53693
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-gke5.15.0-1046.51UBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1032.38UBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2023-53693
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-ibm5.15.0-1042.45UBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1045.51UBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-kvm5.15.0-1046.51UBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-88.98UBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2023-53693
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1040.40UBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1019.19UBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1006.6UBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2023-53693
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2023-53693
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-oracle5.15.0-1047.53UBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-raspi5.15.0-1042.45UBUNTU-CVE-2023-53693
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-53693
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-53693
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2023-53693
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1025.29UBUNTU-CVE-2023-53693

Affected products (as reported)

VendorProductVersions
Linux Linux f2c2e717642c66f7fe7e5dd69b2e8ff5849f4d10 – before 68e6287ac61dc22513cd39f02b9ac1fef28513e4f2c2e717642c66f7fe7e5dd69b2e8ff5849f4d10 – before 0f7a2b567197798da7bfa2252f4485c0ca6c6266f2c2e717642c66f7fe7e5dd69b2e8ff5849f4d10 – before de77000c1923d7942f9b4f08447c8feeae1c0f33f2c2e717642c66f7fe7e5dd69b2e8ff5849f4d10 – before 9934e5d07c0dc294169a7d52f6309f35cd6d7755f2c2e717642c66f7fe7e5dd69b2e8ff5849f4d10 – before 83e30f2bf86ef7c38fbd476ed81a88522b620628
Linux Linux 5.7

References