CVE-2026-23377 Details
Description
In the Linux kernel, the following vulnerability has been resolved: ice: change XDP RxQ frag_size from DMA write length to xdp.frame_sz The only user of frag_size field in XDP RxQ info is bpf_xdp_frags_increase_tail(). It clearly expects whole buff size instead of DMA write size. Different assumptions in ice driver configuration lead to negative tailroom. This allows to trigger kernel panic, when using XDP_ADJUST_TAIL_GROW_MULTI_BUFF xskxceiver test and changing packet size to 6912 and the requested offset to a huge value, e.g. XSK_UMEM__MAX_FRAME_SIZE * 100. Due to other quirks of the ZC configuration in ice, panic is not observed in ZC mode, but tailroom growing still fails when it should not. Use fill queue buffer truesize instead of DMA write size in XDP RxQ info. Fix ZC mode too by using the new helper.
A vulnerability in the Linux kernel's Intel Ice driver can lead to a kernel panic when using the XDP (eXpress Data Path) feature. The issue arises because the driver incorrectly handles the fragment size for received packets, using the DMA write length instead of the actual buffer size. This discrepancy can cause negative tailroom, which is problematic when certain packet sizes and offsets are used. While the panic does not occur in the driver’s Zero-Copy mode, the tailroom issue persists, indicating a flaw in how the driver manages packet data under specific conditions.
Users can apply the latest patches from the Linux kernel stable tree to address this vulnerability. The patch is included in the commit referenced by the CVE.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/b0f05100e8795aadd1c0606bae9caefbda070d63 | kernel.org | Patch |
| https://git.kernel.org/stable/c/e142dc4ef0f451b7ef99d09aaa84e9389af629d7 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 6.3, < 6.19.7 7.0 rc1 7.0 rc2 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Apr 28, 2026 | Reanalysis | [email protected] |
| Apr 24, 2026 | Initial Analysis | [email protected] |
| Mar 25, 2026 | New CVE Received | kernel.org |