Medium 5.5Published Jul 19, 2026

CVE-2026-64185sysfs: don't remove existing directory on update failure

Updated under an hour ago (Oct 26, 2026, 7:00 PM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: sysfs: don't remove existing directory on update failure When sysfs_update_group() is called for a named group and create_files() fails (e.g. -ENOMEM), internal_create_group() calls kernfs_remove(kn) on the group directory. In the update path, kn was obtained via kernfs_find_and_get() and refers to a directory that already existed before this call. Removing it silently destroys a sysfs group that the caller did not create. Only remove the directory if we created it ourselves. On update failure the directory remains as it is left empty by remove_files() inside create_files(), but can be repopulated by a retry.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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: Analyzed
Record last updated: Jul 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from c855cf2759d27142f771173d9fd8e7fdf9cf5138 before c5e125c828b701afaf7493b42a14aa89362ff36d; from c855cf2759d27142f771173d9fd8e7fdf9cf5138 before ccadd32cc1263802a5969c9efe0e96225450428c; from c855cf2759d27142f771173d9fd8e7fdf9cf5138 before 14f2c14ae86c4af17a0a9f8ab46dacf2d5fd1d8a; from c855cf2759d27142f771173d9fd8e7fdf9cf5138 before 31527d80234caf83dc96ad478645e57df9de4472; from c855cf2759d27142f771173d9fd8e7fdf9cf5138 before 57b285e0368290aa55f79ba11419b96d0ebdb418; from c855cf2759d27142f771173d9fd8e7fdf9cf5138 before 48fa96538bd2868034d33429e4565fda384d0736; from c855cf2759d27142f771173d9fd8e7fdf9cf5138 before 708f6926f61f71e09b5e9fd668b9882ccd46e69f; from c855cf2759d27142f771173d9fd8e7fdf9cf5138 before 237557b8a81ab948e8332f7c0058e758f081c0a3	CNA record
linux linux_kernel linux:linux_kernel	from 4.19 before 5.10.258; from 5.11 before 5.15.209; from 5.16 before 6.1.175; from 6.2 before 6.6.142; from 6.7 before 6.12.92; from 6.13 before 6.18.34; from 6.19 before 7.0.11; 7.1; and 3 more ranges	NVD

References

References

https://git.kernel.org/stable/c/c5e125c828b701afaf7493b42a14aa89362ff36d	patch
https://git.kernel.org/stable/c/ccadd32cc1263802a5969c9efe0e96225450428c	patch
https://git.kernel.org/stable/c/14f2c14ae86c4af17a0a9f8ab46dacf2d5fd1d8a	patch
https://git.kernel.org/stable/c/31527d80234caf83dc96ad478645e57df9de4472	patch
https://git.kernel.org/stable/c/57b285e0368290aa55f79ba11419b96d0ebdb418	patch
https://git.kernel.org/stable/c/48fa96538bd2868034d33429e4565fda384d0736	patch
https://git.kernel.org/stable/c/708f6926f61f71e09b5e9fd668b9882ccd46e69f	patch
https://git.kernel.org/stable/c/237557b8a81ab948e8332f7c0058e758f081c0a3	patch

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.