Buffer Overflow The advisory has been revoked - it doesn't affect any version of package kernel-headers (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL10-KERNELHEADERS-15215278
- published5 Feb 2026
- disclosed4 Feb 2026
Introduced: 4 Feb 2026
CVE-2026-23059 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-headers package and not the kernel-headers package as distributed by RHEL.
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.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2436777
- https://access.redhat.com/security/cve/CVE-2026-23059
- https://git.kernel.org/stable/c/1922468a4a80424e5a69f7ba50adcee37f4722e9
- https://git.kernel.org/stable/c/19bc5f2a6962dfaa0e32d0e0bc2271993d85d414
- https://git.kernel.org/stable/c/408bfa8d70f79ac696cec1bdbdfb3bf43a02e6d0
- https://git.kernel.org/stable/c/aa14451fa5d5f2de919384c637e2a8c604e1a1fe