{"cve":"CVE-2023-53271","nvd":{"published":"2025-09-16T08:15:35.900","modified":"2026-06-17T06:44:41.960","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nubi: Fix unreferenced object reported by kmemleak in ubi_resize_volume()\n\nThere is a memory leaks problem reported by kmemleak:\n\nunreferenced object 0xffff888102007a00 (size 128):\n  comm \"ubirsvol\", pid 32090, jiffies 4298464136 (age 2361.231s)\n  hex dump (first 32 bytes):\nff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff  ................\nff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff  ................\n  backtrace:\n[<ffffffff8176cecd>] __kmalloc+0x4d/0x150\n[<ffffffffa02a9a36>] ubi_eba_create_table+0x76/0x170 [ubi]\n[<ffffffffa029764e>] ubi_resize_volume+0x1be/0xbc0 [ubi]\n[<ffffffffa02a3321>] ubi_cdev_ioctl+0x701/0x1850 [ubi]\n[<ffffffff81975d2d>] __x64_sys_ioctl+0x11d/0x170\n[<ffffffff83c142a5>] do_syscall_64+0x35/0x80\n[<ffffffff83e0006a>] entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nThis is due to a mismatch between create and destroy interfaces, and\nin detail that \"new_eba_tbl\" created by ubi_eba_create_table() but\ndestroyed by kfree(), while will causing \"new_eba_tbl->entries\" not\nfreed.\n\nFix it by replacing kfree(new_eba_tbl) with\nubi_eba_destroy_table(new_eba_tbl)","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-401"],"references":["https://git.kernel.org/stable/c/07b60f7452d2fa731737552937cb81821919f874","https://git.kernel.org/stable/c/09780a44093b53f9cbca76246af2e4ff0884e512","https://git.kernel.org/stable/c/1e591ea072df7211f64542a09482b5f81cb3ad27","https://git.kernel.org/stable/c/26ec2d66aecab8ff997b912c20247fedba4f5740","https://git.kernel.org/stable/c/27b760b81951d8d5e5c952a696af8574052b0709"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:08:41.295252406+00:00"},"epss":{"cve":"CVE-2023-53271","score":0.0016,"percentile":0.0511,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}