CVE-2026-23377Patch(linux / linux_kernel)

LOWCVSS 5.5 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch linux linux_kernel systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD 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.

0.5/ 10 priority

Sources & remediation

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • linux_kernel

Threat summary

  • Patch or workaround signal is available
  • 3 mentions across 3 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 2 signals
  • Technical details provided in 2 signals
  • Disclosure: 1 classified signal
  • Peaked 2d ago at 1 mentions (2026-03-25); latest day: 1
  • 3 total mentions across 3 days

Affected systems

Vendors
Products
linux_kernel

1 version affected across 1 product

Deep dive

Activity timeline3 mentions / 3d
00111Mentions · 2026-03-25: 1Mentions · 2026-03-26: 1Mentions · 2026-03-27: 1Patch / Workaround · 2026-03-25: 1Patch / Workaround · 2026-03-26: 1Technical Details · 2026-03-25: 1Technical Details · 2026-03-26: 103-2503-2603-27
Signal classification2 categories
Patch
266.7%
Disclosure
133.3%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-03-251
Patch1
2026-03-261
Patch1
2026-03-271
Disclosure1
Full discourse3 posts
  • CVE@CVEnew
    Patch

    CVE-2026-23377 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 f… https://www.cve.org/CVERecord?id=CVE-2026-23377

    Post summary

    CVE-2026-23377, affecting the Linux kernel's ice XDP driver, has been fixed by altering the frag_size calculation; a patch has been deployed and referenced via the CVE record.

    0001086
    56.8K followersView on X
  • CVEarity@CVEarity
    Disclosure

    ⚡ New CVE Alert: CVE-2026-23377 🚨 Risk Level: Unknown 🧩 Affects: Multiple / Unspecified Products Reference: https://nvd.nist.gov/vuln/detail/CVE-2026-23377 #CVE-2026-23377 #CVE   #CyberSecurity #InfoSec https://t.co/ZSahBKKJ4I

    Post summary

    The tweet announces a new CVE (CVE-2026-23377) with an unknown risk level and unspecified affected products, providing only a reference to the NVD entry.

    0000026
    123 followersView on X
  • WindowsForum@windowsforum
    Patch

    🧊 Microsoft vibes, but Linux kernel: Intel ice used DMA write length instead of xdp.frame_sz. Small “math” mismatch, big packet-path chaos. Your NIC shouldn’t gamble. #WindowsForum https://windowsforum.com/threads/cve-2026-23377-fixing-ice-driver-xdp-frag-size-from-xdp-frame_sz.407465/ #XdpSecurity #IntelIceDriver #Cve202623377 #LinuxKernelNetworking https://t.co/SW6sEsBg4w

    Post summary

    The post highlights a Linux kernel vulnerability (CVE‑2026‑23377) in the Intel Ice NIC driver, explains a technical mismatch causing packet‑path issues, and points to a fix/patch discussion.

    0000029
    1.0K followersView on X
CPE platform detail3 entries

3 of 3 entries

PartVendorProductVersionTarget SWTarget HW
OSlinuxlinux_kernel---
OSlinuxlinux_kernel7.0--
OSlinuxlinux_kernel7.0--

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