CVE-2026-23059
Description
In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Sanitize payload size to prevent member overflow In qla27xx_copy_fpin_pkt() and qla27xx_copy_multiple_pkt(), the frame_size reported by firmware is used to calculate the copy length into item->iocb. However, the iocb member is defined as a fixed-size 64-byte array within struct purex_item. If the reported frame_size exceeds 64 bytes, subsequent memcpy calls will overflow the iocb member boundary. While extra memory might be allocated, this cross-member write is unsafe and triggers warnings under CONFIG_FORTIFY_SOURCE. Fix this by capping total_bytes to the size of the iocb member (64 bytes) before allocation and copying. This ensures all copies remain within the bounds of the destination structure member.
How to fix
- Linux Linux408bfa8d70f79ac696cec1bdbdfb3bf43a02e6d0, 1922468a4a80424e5a69f7ba50adcee37f4722e9, aa14451fa5d5f2de919384c637e2a8c604e1a1fe, 19bc5f2a6962dfaa0e32d0e0bc2271993d85d414 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 875386b98857822b77ac7f95bdf367b70af5b78c ≤ v < 408bfa8d70f79ac696cec1bdbdfb3bf43a02e6d0, 875386b98857822b77ac7f95bdf367b70af5b78c ≤ v < 1922468a4a80424e5a69f7ba50adcee37f4722e9, 875386b98857822b77ac7f95bdf367b70af5b78c ≤ v < aa14451fa5d5f2de919384c637e2a8c604e1a1fe, 875386b98857822b77ac7f95bdf367b70af5b78c ≤ v < 19bc5f2a6962dfaa0e32d0e0bc2271993d85d414, 6.6 | 408bfa8d70f79ac696cec1bdbdfb3bf43a02e6d0, 1922468a4a80424e5a69f7ba50adcee37f4722e9, aa14451fa5d5f2de919384c637e2a8c604e1a1fe, 19bc5f2a6962dfaa0e32d0e0bc2271993d85d414 |
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