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Vulnerability · Published Sep 16, 2025 · Assigned by Linux

CVE-2023-53278ubifs: Fix memory leak in ubifs_sysfs_init()

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 0.2% (higher than 5% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.2%top 95.1% 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: ubifs: Fix memory leak in ubifs_sysfs_init() When insmod ubifs.ko, a kmemleak reported as below: unreferenced object 0xffff88817fb1a780 (size 8): comm "insmod", pid 25265, jiffies 4295239702 (age 100.130s) hex dump (first 8 bytes): 75 62 69 66 73 00 ff ff ubifs... backtrace: [<ffffffff81b3fc4c>] slab_post_alloc_hook+0x9c/0x3c0 [<ffffffff81b44bf3>] __kmalloc_track_caller+0x183/0x410 [<ffffffff8198d3da>] kstrdup+0x3a/0x80 [<ffffffff8198d486>] kstrdup_const+0x66/0x80 [<ffffffff83989325>] kvasprintf_const+0x155/0x190 [<ffffffff83bf55bb>] kobject_set_name_vargs+0x5b/0x150 [<ffffffff83bf576b>] kobject_set_name+0xbb/0xf0 [<ffffffff8100204c>] do_one_initcall+0x14c/0x5a0 [<ffffffff8157e380>] do_init_module+0x1f0/0x660 [<ffffffff815857be>] load_module+0x6d7e/0x7590 [<ffffffff8158644f>] __do_sys_finit_module+0x19f/0x230 [<ffffffff815866b3>] __x64_sys_finit_module+0x73/0xb0 [<ffffffff88c98e85>] do_syscall_64+0x35/0x80 [<ffffffff88e00087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd When kset_register() failed, we should call kset_put to cleanup it.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.20-1DEBIAN-CVE-2023-53278
Debian:13linux6.1.20-1DEBIAN-CVE-2023-53278
Debian:14linux6.1.20-1DEBIAN-CVE-2023-53278
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2023-53278
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-53278
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2023-53278
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2023-53278
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-53278
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2023-53278
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2023-53278
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2023-53278
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-53278
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2023-53278
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-53278
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2023-53278
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2023-53278
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2023-53278
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2023-53278
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2023-53278
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2023-53278
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2023-53278
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2023-53278
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2023-53278
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2023-53278
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2023-53278
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2023-53278
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2023-53278
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-53278
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2023-53278
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-53278
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2023-53278
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2023-53278
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2023-53278
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2023-53278
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2023-53278
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2023-53278
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2023-53278
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-53278
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-53278
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-53278
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-53278
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-53278
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2023-53278
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-53278
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2023-53278
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2023-53278

Affected products (as reported)

VendorProductVersions
Linux Linux 2e3cbf425804fb44a005e252f88f93dff108c911 – before 1c5fdf2d4647219d2267ccb08c7f2c7095bf34502e3cbf425804fb44a005e252f88f93dff108c911 – before d42c2b18c42da7378e67b6414aafe93b65de89d12e3cbf425804fb44a005e252f88f93dff108c911 – before 203a55f04f66eea1a1ca7e5a302a7f5c99c62327
Linux Linux 5.17

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

References