CVE-2023-53271
ubi: Fix unreferenced object reported by kmemleak in ubi_resize_volume()
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: ubi: Fix unreferenced object reported by kmemleak in ubi_resize_volume() There is a memory leaks problem reported by kmemleak: unreferenced object 0xffff888102007a00 (size 128): comm "ubirsvol", pid 32090, jiffies 4298464136 (age 2361.231s) hex dump (first 32 bytes): ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ backtrace: [<ffffffff8176cecd>] __kmalloc+0x4d/0x150 [<ffffffffa02a9a36>] ubi_eba_create_table+0x76/0x170 [ubi] [<ffffffffa029764e>] ubi_resize_volume+0x1be/0xbc0 [ubi] [<ffffffffa02a3321>] ubi_cdev_ioctl+0x701/0x1850 [ubi] [<ffffffff81975d2d>] __x64_sys_ioctl+0x11d/0x170 [<ffffffff83c142a5>] do_syscall_64+0x35/0x80 [<ffffffff83e0006a>] entry_SYSCALL_64_after_hwframe+0x46/0xb0 This is due to a mismatch between create and destroy interfaces, and in detail that "new_eba_tbl" created by ubi_eba_create_table() but destroyed by kfree(), while will causing "new_eba_tbl->entries" not freed. Fix it by replacing kfree(new_eba_tbl) with ubi_eba_destroy_table(new_eba_tbl)
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.16% · top 95% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
- affected 799dca34ac543485f581bd8464ec9b1c4f0f852a – < 09780a44093b53f9cbca76246af2e4ff0884e512
- affected 799dca34ac543485f581bd8464ec9b1c4f0f852a – < 26ec2d66aecab8ff997b912c20247fedba4f5740
- affected 799dca34ac543485f581bd8464ec9b1c4f0f852a – < 07b60f7452d2fa731737552937cb81821919f874
- affected 799dca34ac543485f581bd8464ec9b1c4f0f852a – < 31d60afe2cc2b712dbefcaab6b7d6a47036f844e
- affected 799dca34ac543485f581bd8464ec9b1c4f0f852a – < 95a72417dd13ebcdcb1bd0c5d4d15f7c5bfbb288
- affected 799dca34ac543485f581bd8464ec9b1c4f0f852a – < 27b760b81951d8d5e5c952a696af8574052b0709
- affected 799dca34ac543485f581bd8464ec9b1c4f0f852a – < 5c0c81a313492b83bd0c038b8839b0e04eb87563
- affected 799dca34ac543485f581bd8464ec9b1c4f0f852a – < 1e591ea072df7211f64542a09482b5f81cb3ad27
- affected 4.9
- unaffected < 4.9
- unaffected 4.14.308 – ≤ 4.14.*
- unaffected 4.19.276 – ≤ 4.19.*
- unaffected 5.4.235 – ≤ 5.4.*
- unaffected 5.10.173 – ≤ 5.10.*
- unaffected 5.15.100 – ≤ 5.15.*
- unaffected 6.1.18 – ≤ 6.1.*
- unaffected 6.2.5 – ≤ 6.2.*
- unaffected 6.3 – ≤ *
References (8)
- https://git.kernel.org/stable/c/09780a44093b53f9cbca76246af2e4ff0884e512 (opens in a new tab)
- https://git.kernel.org/stable/c/26ec2d66aecab8ff997b912c20247fedba4f5740 (opens in a new tab)
- https://git.kernel.org/stable/c/07b60f7452d2fa731737552937cb81821919f874 (opens in a new tab)
- https://git.kernel.org/stable/c/31d60afe2cc2b712dbefcaab6b7d6a47036f844e (opens in a new tab)
- https://git.kernel.org/stable/c/95a72417dd13ebcdcb1bd0c5d4d15f7c5bfbb288 (opens in a new tab)
- https://git.kernel.org/stable/c/27b760b81951d8d5e5c952a696af8574052b0709 (opens in a new tab)
- https://git.kernel.org/stable/c/5c0c81a313492b83bd0c038b8839b0e04eb87563 (opens in a new tab)
- https://git.kernel.org/stable/c/1e591ea072df7211f64542a09482b5f81cb3ad27 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2023-53271)Record last updated .