High 7.0Published Feb 14, 2026

CVE-2026-23180dpaa2-switch: add bounds check for if_id in IRQ handler

Updated under an hour ago (Oct 27, 2026, 4:20 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: dpaa2-switch: add bounds check for if_id in IRQ handler The IRQ handler extracts if_id from the upper 16 bits of the hardware status register and uses it to index into ethsw->ports[] without validation. Since if_id can be any 16-bit value (0-65535) but the ports array is only allocated with sw_attr.num_ifs elements, this can lead to an out-of-bounds read potentially. Add a bounds check before accessing the array, consistent with the existing validation in dpaa2_switch_rx().

CVSS: 7.0 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-125
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: Oct 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 24ab724f8a4661b2dc8e696b41df93bdc108f7a1 before 77611cab5bdfff7a070ae574bbfba20a1de99d1b; from 24ab724f8a4661b2dc8e696b41df93bdc108f7a1 before 34b56c16efd61325d80bf1d780d0e176be662f59; from 24ab724f8a4661b2dc8e696b41df93bdc108f7a1 before f89e33c9c37f0001b730e23b3b05ab7b1ecface2; from 24ab724f8a4661b2dc8e696b41df93bdc108f7a1 before 2447edc367800ba914acf7ddd5d250416b45fb31; 24ab724f8a4661b2dc8e696b41df93bdc108f7a1 builds before 1b381a638e1851d8cfdfe08ed9cdbec5295b18c9; from 24ab724f8a4661b2dc8e696b41df93bdc108f7a1 before 31a7a0bbeb006bac2d9c81a2874825025214b6d8	CNA record

References

References

https://git.kernel.org/stable/c/77611cab5bdfff7a070ae574bbfba20a1de99d1b
https://git.kernel.org/stable/c/34b56c16efd61325d80bf1d780d0e176be662f59
https://git.kernel.org/stable/c/f89e33c9c37f0001b730e23b3b05ab7b1ecface2
https://git.kernel.org/stable/c/2447edc367800ba914acf7ddd5d250416b45fb31
https://git.kernel.org/stable/c/1b381a638e1851d8cfdfe08ed9cdbec5295b18c9
https://git.kernel.org/stable/c/31a7a0bbeb006bac2d9c81a2874825025214b6d8

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.