Description
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().
Metrics
CVSS 3.1 7.0/10
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 24ab724f8a4661b2dc8e696b41df93bdc108f7a1, < 77611cab5bdfff7a070ae574bbfba20a1de99d1b; >= 24ab724f8a4661b2dc8e696b41df93bdc108f7a1, < 34b56c16efd61325d80bf1d780d0e176be662f59; >= 24ab724f8a4661b2dc8e696b41df93bdc108f7a1, < f89e33c9c37f0001b730e23b3b05ab7b1ecface2; >= 24ab724f8a4661b2dc8e696b41df93bdc108f7a1, < 2447edc367800ba914acf7ddd5d250416b45fb31; >= 24ab724f8a4661b2dc8e696b41df93bdc108f7a1, < 1b381a638e1851d8cfdfe08ed9cdbec5295b18c9; >= 24ab724f8a4661b2dc8e696b41df93bdc108f7a1, < 31a7a0bbeb006bac2d9c81a2874825025214b6d8 |
| Linux | Linux | 5.15 |
References
- https://git.kernel.org/stable/c/1b381a638e1851d8cfdfe08ed9cdbec5295b18c9
- https://git.kernel.org/stable/c/2447edc367800ba914acf7ddd5d250416b45fb31
- https://git.kernel.org/stable/c/31a7a0bbeb006bac2d9c81a2874825025214b6d8
- https://git.kernel.org/stable/c/34b56c16efd61325d80bf1d780d0e176be662f59
- https://git.kernel.org/stable/c/77611cab5bdfff7a070ae574bbfba20a1de99d1b
- https://git.kernel.org/stable/c/f89e33c9c37f0001b730e23b3b05ab7b1ecface2
Timeline
- Published
- Feb 14, 2026
- Last modified
- Oct 19, 2026
- NVD status
- Deferred