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.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00035.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
f2c2e717642c66f7fe7e5dd69b2e8ff5849f4d10 affected < 68e6287ac61dc22513cd39f02b9ac1fef28513e4
f2c2e717642c66f7fe7e5dd69b2e8ff5849f4d10 affected < 0f7a2b567197798da7bfa2252f4485c0ca6c6266
f2c2e717642c66f7fe7e5dd69b2e8ff5849f4d10 affected < de77000c1923d7942f9b4f08447c8feeae1c0f33
f2c2e717642c66f7fe7e5dd69b2e8ff5849f4d10 affected < 9934e5d07c0dc294169a7d52f6309f35cd6d7755
f2c2e717642c66f7fe7e5dd69b2e8ff5849f4d10 affected < 83e30f2bf86ef7c38fbd476ed81a88522b620628
Linux Linux affected
Version Status Constraints
5.7 affected —
0 unaffected < 5.7
5.10.190 unaffected ≤ 5.10.*
5.15.124 unaffected ≤ 5.15.*
6.1.43 unaffected ≤ 6.1.*
6.4.8 unaffected ≤ 6.4.*
6.5 unaffected ≤ *

No data.

No data.

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Fixes

Solution

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Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/0f7a2b567197798da7bfa2252f4485c0ca6c6266 cve-icon cve-icon
https://git.kernel.org/stable/c/68e6287ac61dc22513cd39f02b9ac1fef28513e4 cve-icon cve-icon
https://git.kernel.org/stable/c/83e30f2bf86ef7c38fbd476ed81a88522b620628 cve-icon cve-icon
https://git.kernel.org/stable/c/9934e5d07c0dc294169a7d52f6309f35cd6d7755 cve-icon cve-icon
https://git.kernel.org/stable/c/de77000c1923d7942f9b4f08447c8feeae1c0f33 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025102210-CVE-2023-53693-57fe@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2023-53693 cve-icon
https://www.cve.org/CVERecord?id=CVE-2023-53693 cve-icon
History

Thu, 23 Oct 2025 10:30:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Vendors & Products Linux
Linux linux Kernel

Thu, 23 Oct 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate

Wed, 22 Oct 2025 13:45:00 +0000

Type Values Removed Values Added
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.
Title USB: gadget: Fix the memory leak in raw_gadget driver
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2025-10-30T19:33:07.203Z

Reserved: 2025-10-22T13:21:37.344Z

Link: CVE-2023-53693

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-10-22T14:15:43.787

Modified: 2025-10-22T21:12:48.953

Link: CVE-2023-53693

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-10-22T00:00:00Z

Links: CVE-2023-53693 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2025-10-23T10:07:37Z

Weaknesses

No weakness.