High 7.8Published Dec 24, 2025

CVE-2023-54050ubifs: Fix memleak when insert_old_idx() failed

Updated under an hour ago (Oct 26, 2026, 4:40 PM ET)

Does this affect you?

It affects Linux. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Linux

Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: ubifs: Fix memleak when insert_old_idx() failed Following process will cause a memleak for copied up znode: dirty_cow_znode zn = copy_znode(c, znode); err = insert_old_idx(c, zbr->lnum, zbr->offs); if (unlikely(err)) return ERR_PTR(err); // No one refers to zn. Fetch a reproducer in [Link]. Function copy_znode() is split into 2 parts: resource allocation and znode replacement, insert_old_idx() is split in similar way, so resource cleanup could be done in error handling path without corrupting metadata(mem & disk). It's okay that old index inserting is put behind of add_idx_dirt(), old index is used in layout_leb_in_gaps(), so the two processes do not depend on each other.

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Deferred
Record last updated: Aug 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d before cc29c7216d7f057eb0613b97dc38c7e1962a88d2; from 1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d before 6f2eee5457bc48b0426dedfd78cdbdea241a6edb; from 1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d before 66e9f2fb3e753f820bec2a98e8c6387029988320; from 1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d before 3ae75f82c33fa1b4ca2006b55c84f4ef4a428d4d; from 1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d before ef9aac603659e9ffe7d69ae16e3f0fc0991a965b; from 1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d before 79079cebbeed624b9d01cfcf1e3254ae1a1f6e14; from 1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d before a6da0ab9847779e05a7416c7a98148b549de69ef; from 1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d before b5fda08ef213352ac2df7447611eb4d383cce929	CNA record

References

References

https://git.kernel.org/stable/c/cc29c7216d7f057eb0613b97dc38c7e1962a88d2
https://git.kernel.org/stable/c/6f2eee5457bc48b0426dedfd78cdbdea241a6edb
https://git.kernel.org/stable/c/66e9f2fb3e753f820bec2a98e8c6387029988320
https://git.kernel.org/stable/c/3ae75f82c33fa1b4ca2006b55c84f4ef4a428d4d
https://git.kernel.org/stable/c/ef9aac603659e9ffe7d69ae16e3f0fc0991a965b
https://git.kernel.org/stable/c/79079cebbeed624b9d01cfcf1e3254ae1a1f6e14
https://git.kernel.org/stable/c/a6da0ab9847779e05a7416c7a98148b549de69ef
https://git.kernel.org/stable/c/b5fda08ef213352ac2df7447611eb4d383cce929

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.