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Vulnerability · Published Sep 16, 2025 · Assigned by Linux

CVE-2023-53303net: microchip: vcap api: Fix possible memory leak for vcap_dup_rule()

Medium 5.5

In plain English

A medium-severity memory leak 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 0.1% (higher than 3% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.1%top 97.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: net: microchip: vcap api: Fix possible memory leak for vcap_dup_rule() Inject fault When select CONFIG_VCAP_KUNIT_TEST, the below memory leak occurs. If kzalloc() for duprule succeeds, but the following kmemdup() fails, the duprule, ckf and caf memory will be leaked. So kfree them in the error path. unreferenced object 0xffff122744c50600 (size 192): comm "kunit_try_catch", pid 346, jiffies 4294896122 (age 911.812s) hex dump (first 32 bytes): 10 27 00 00 04 00 00 00 1e 00 00 00 2c 01 00 00 .'..........,... 00 00 00 00 00 00 00 00 18 06 c5 44 27 12 ff ff ...........D'... backtrace: [<00000000394b0db8>] __kmem_cache_alloc_node+0x274/0x2f8 [<0000000001bedc67>] kmalloc_trace+0x38/0x88 [<00000000b0612f98>] vcap_dup_rule+0x50/0x460 [<000000005d2d3aca>] vcap_add_rule+0x8cc/0x1038 [<00000000eef9d0f8>] test_vcap_xn_rule_creator.constprop.0.isra.0+0x238/0x494 [<00000000cbda607b>] vcap_api_rule_remove_in_front_test+0x1ac/0x698 [<00000000c8766299>] kunit_try_run_case+0xe0/0x20c [<00000000c4fe9186>] kunit_generic_run_threadfn_adapter+0x50/0x94 [<00000000f6864acf>] kthread+0x2e8/0x374 [<0000000022e639b3>] ret_from_fork+0x10/0x20

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:13linux6.5.6-1DEBIAN-CVE-2023-53303
Debian:14linux6.5.6-1DEBIAN-CVE-2023-53303
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2023-53303
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-53303
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2023-53303
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2023-53303
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-53303
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2023-53303
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2023-53303
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2023-53303
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-53303
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2023-53303
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-53303
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2023-53303
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2023-53303
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2023-53303
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2023-53303
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2023-53303
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2023-53303
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2023-53303
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2023-53303
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2023-53303
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2023-53303
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2023-53303
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2023-53303
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2023-53303
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-53303
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2023-53303
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-53303
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2023-53303
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2023-53303
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2023-53303
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2023-53303
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2023-53303
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2023-53303
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2023-53303
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-53303
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-53303
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-53303
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-53303
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-53303
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2023-53303
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-53303
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2023-53303
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2023-53303

Affected products (as reported)

VendorProductVersions
Linux Linux 814e7693207f1bd936d600f9b5467f133e3d6e40 – before a26ba60413b2c8f95daf0ee0152cf82abd7bfbe4814e7693207f1bd936d600f9b5467f133e3d6e40 – before 281f65d29d6da1a9b6907fb0b145aaf34f4e4822
Linux Linux 6.3

Weakness: CWE-401 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References