CVE-2023-54050 | THREATINT

Description

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.

PUBLISHED Reserved 2025-12-24 | Published 2025-12-24 | Updated 2025-12-24 | Assigner Linux

Product status

Default status

unaffected

1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d (git) before cc29c7216d7f057eb0613b97dc38c7e1962a88d2

affected

1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d (git) before 6f2eee5457bc48b0426dedfd78cdbdea241a6edb

affected

1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d (git) before 66e9f2fb3e753f820bec2a98e8c6387029988320

affected

1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d (git) before 3ae75f82c33fa1b4ca2006b55c84f4ef4a428d4d

affected

1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d (git) before ef9aac603659e9ffe7d69ae16e3f0fc0991a965b

affected

1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d (git) before 79079cebbeed624b9d01cfcf1e3254ae1a1f6e14

affected

1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d (git) before a6da0ab9847779e05a7416c7a98148b549de69ef

affected

1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d (git) before b5fda08ef213352ac2df7447611eb4d383cce929

affected

Default status

affected

2.6.27

affected

Any version before 2.6.27

unaffected

4.19.283 (semver)

unaffected

5.4.243 (semver)

unaffected

5.10.180 (semver)

unaffected

5.15.111 (semver)

unaffected

6.1.28 (semver)

unaffected

6.2.15 (semver)

unaffected

6.3.2 (semver)

unaffected

6.4 (original_commit_for_fix)

unaffected

References

git.kernel.org/...c/cc29c7216d7f057eb0613b97dc38c7e1962a88d2

git.kernel.org/...c/6f2eee5457bc48b0426dedfd78cdbdea241a6edb

git.kernel.org/...c/66e9f2fb3e753f820bec2a98e8c6387029988320

git.kernel.org/...c/3ae75f82c33fa1b4ca2006b55c84f4ef4a428d4d

git.kernel.org/...c/ef9aac603659e9ffe7d69ae16e3f0fc0991a965b

git.kernel.org/...c/79079cebbeed624b9d01cfcf1e3254ae1a1f6e14

git.kernel.org/...c/a6da0ab9847779e05a7416c7a98148b549de69ef

git.kernel.org/...c/b5fda08ef213352ac2df7447611eb4d383cce929

cve.org (CVE-2023-54050)

nvd.nist.gov (CVE-2023-54050)

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