Medium 5.5Published Jan 31, 2026

CVE-2026-23023idpf: fix memory leak in idpf_vport_rel()

Updated under an hour ago (Oct 27, 2026, 8:50 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: idpf: fix memory leak in idpf_vport_rel() Free vport->rx_ptype_lkup in idpf_vport_rel() to avoid leaking memory during a reset. Reported by kmemleak: unreferenced object 0xff450acac838a000 (size 4096): comm "kworker/u258:5", pid 7732, jiffies 4296830044 hex dump (first 32 bytes): 00 00 00 00 00 10 00 00 00 10 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 10 00 00 00 00 00 00 ................ backtrace (crc 3da81902): __kmalloc_cache_noprof+0x469/0x7a0 idpf_send_get_rx_ptype_msg+0x90/0x570 [idpf] idpf_init_task+0x1ec/0x8d0 [idpf] process_one_work+0x226/0x6d0 worker_thread+0x19e/0x340 kthread+0x10f/0x250 ret_from_fork+0x251/0x2b0 ret_from_fork_asm+0x1a/0x30

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: May 11, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 0fe45467a1041ea3657a7fa3a791c84c104fbd34 before a4212d6732e3f674c6cc7d0b642f276d827e8f94; from 0fe45467a1041ea3657a7fa3a791c84c104fbd34 before ec602a2a4071eb956d656ba968c58fee09f0622d; from 0fe45467a1041ea3657a7fa3a791c84c104fbd34 before f6242b354605faff263ca45882b148200915a3f6	CNA record
linux linux_kernel linux:linux_kernel	from 6.7.1 before 6.12.66; from 6.13 before 6.18.6; 6.7; 6.19; 6.19; 6.19; 6.19; 6.19; and 3 more ranges	NVD

References

References

https://git.kernel.org/stable/c/a4212d6732e3f674c6cc7d0b642f276d827e8f94	patch
https://git.kernel.org/stable/c/ec602a2a4071eb956d656ba968c58fee09f0622d	patch
https://git.kernel.org/stable/c/f6242b354605faff263ca45882b148200915a3f6	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.