Medium 5.5Published May 8, 2026

CVE-2026-43317most: core: fix leak on early registration failure

Updated under an hour ago (Oct 26, 2026, 12:50 PM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: most: core: fix leak on early registration failure A recent commit fixed a resource leak on early registration failures but for some reason left out the first error path which still leaks the resources associated with the interface. Fix up also the first error path so that the interface is always released on errors.

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: Modified
Record last updated: Oct 21, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 723de0f9171eeb49a3ae98cae82ebbbb992b3a7c before 04474009a2ea7aa27c67d323952a23bb16d5acc5; from 723de0f9171eeb49a3ae98cae82ebbbb992b3a7c before bbfe49ffb892bddf32c34bea95b7ff0fc30affb5; from 723de0f9171eeb49a3ae98cae82ebbbb992b3a7c before f1ba620f9e8d7291f80c0554e4b820f5fb30e819; 723de0f9171eeb49a3ae98cae82ebbbb992b3a7c builds before 5fd4396c2e48e90cc2597a86c18227d56ea845f0; 723de0f9171eeb49a3ae98cae82ebbbb992b3a7c builds before 2c198c272f9c9213b0fdf6b4a879f445c574f416	CNA record
linux linux_kernel linux:linux_kernel	from 5.6 before 6.12.75; from 6.13 before 6.18.16; from 6.19 before 6.19.6; 7.0; 7.0; 7.0; 7.0; 7.0; and 2 more ranges	NVD

References

References

https://git.kernel.org/stable/c/04474009a2ea7aa27c67d323952a23bb16d5acc5
https://git.kernel.org/stable/c/bbfe49ffb892bddf32c34bea95b7ff0fc30affb5	patch
https://git.kernel.org/stable/c/f1ba620f9e8d7291f80c0554e4b820f5fb30e819	patch
https://git.kernel.org/stable/c/5fd4396c2e48e90cc2597a86c18227d56ea845f0	patch
https://git.kernel.org/stable/c/2c198c272f9c9213b0fdf6b4a879f445c574f416	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.