CVE-2026-23180dpaa2-switch: add bounds check for if_id in IRQ handler
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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)
- 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
- Deferred
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
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
- 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.