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Vulnerability · Published Sep 18, 2025 · Assigned by Linux

CVE-2023-53435cassini: Fix a memory leak in the error handling path of cas_init_one()

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 4% 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 95.9% 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: cassini: Fix a memory leak in the error handling path of cas_init_one() cas_saturn_firmware_init() allocates some memory using vmalloc(). This memory is freed in the .remove() function but not it the error handling path of the probe. Add the missing vfree() to avoid a memory leak, should an error occur.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.37-1DEBIAN-CVE-2023-53435
Debian:13linux6.3.7-1DEBIAN-CVE-2023-53435
Debian:14linux6.3.7-1DEBIAN-CVE-2023-53435
Ubuntu:22.04:LTSlinux5.15.0-83.92UBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-aws5.15.0-1044.49UBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-azure5.15.0-1046.53UBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-53435
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1046.53.1UBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-gcp5.15.0-1041.49UBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-53435
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-gke5.15.0-1041.46UBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1027.32UBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2023-53435
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-ibm5.15.0-1037.40UBUNTU-CVE-2023-53435
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1039.45UBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-kvm5.15.0-1041.46UBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-83.92UBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2023-53435
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1032.32UBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1017.17UBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1004.4UBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2023-53435
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2023-53435
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-oracle5.15.0-1042.48UBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-raspi5.15.0-1037.40UBUNTU-CVE-2023-53435
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-53435
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-53435
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2023-53435
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1025.29UBUNTU-CVE-2023-53435

Affected products (as reported)

VendorProductVersions
Linux Linux fcaa40669cd798ca2ac0d15441e8a1d1145f2b16 – before 11c0ed097a874156957b515d0ba7e356142eab87fcaa40669cd798ca2ac0d15441e8a1d1145f2b16 – before 60d8e8b88087d68e10c8991a0f6733fa2f963ff0fcaa40669cd798ca2ac0d15441e8a1d1145f2b16 – before e20105d967ab5b53ff50a0e5991fe37324d2ba20fcaa40669cd798ca2ac0d15441e8a1d1145f2b16 – before dc61f7582cc92d547d02e141cd66f5d1f4ed8012fcaa40669cd798ca2ac0d15441e8a1d1145f2b16 – before 234e744d86bd95b381d24546df2dba72804e0219fcaa40669cd798ca2ac0d15441e8a1d1145f2b16 – before 172146c26f0c1b86ab4e9ebffc7e06f04229fa17fcaa40669cd798ca2ac0d15441e8a1d1145f2b16 – before b8b1a667744741fa7807b09a12797a27f14f3facfcaa40669cd798ca2ac0d15441e8a1d1145f2b16 – before 412cd77a2c24b191c65ea53025222418db09817c
Linux Linux 2.6.28

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

References