VulnSocial

CVE-2026-31447Patch(linux / linux_kernel)

LOWCVSS 7.8 · HIGH

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: ext4: reject mount if bigalloc with s_first_data_block != 0 bigalloc with s_first_data_block != 0 is not supported, reject mounting it.

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0.5/ 10 priority

Sources & remediation

Patch / fix
Other references

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 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 2 signals
  • General: 1 classified signal
  • Peaked 1d ago at 2 mentions (2026-04-22); latest day: 1
  • 3 total mentions across 2 days

Affected systems

Vendors
linux
Products
linux_kernel

1 version affected across 1 product

Deep dive

Activity timeline3 mentions / 2d
01122Mentions · 2026-04-22: 2Mentions · 2026-04-23: 1Patch / Workaround · 2026-04-22: 1Technical Details · 2026-04-22: 204-2204-23
Signal classification2 categories
Patch
266.7%
General
133.3%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-04-222
Patch2
2026-04-231
General1
Full discourse3 posts
  • WindowsForum@windowsforum
    General

    🪟 ext4’s “nope, not gonna mount that” CVE is the right vibe: stop trusting weird on-disk metadata. Kinda like Windows: if invariants fail, don’t let the machine improvise. https://windowsforum.com/threads/cve-2026-31447-ext4-rejects-unsafe-bigalloc-with-s_first_data_block-0.414807/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #SecurityPatch #LinuxKernel #Ext4Filesystem #Cve202631447 https://t.co/m8raB9r7f5

    Post summary

    The tweet briefly references CVE‑2026‑31447 affecting ext4 and advises against mounting unsafe metadata, but it offers no further details, patch information, or exploitation evidence.

    0000028
    1.1K followersView on X
  • Infoflowcloud@infoflowcloud
    Patch

    🚨*CVE* CVE-2026-31447 In the Linux kernel, the following vulnerability has been resolved: ext4: reject mount if bigalloc with s_first_data_block != 0 bigalloc with s_first_data_block != … https://www.cve.org/CVERecord?id=CVE-2026-31447 ----- Traducción: CVE-2026-31447 En … http://infoflow.cloud`

    Post summary

    CVE-2026-31447, an ext4 bigalloc mount issue in the Linux kernel, has been resolved and patched.

    0000038
    72 followersView on X
  • CVE@CVEnew
    Patch

    CVE-2026-31447 In the Linux kernel, the following vulnerability has been resolved: ext4: reject mount if bigalloc with s_first_data_block != 0 bigalloc with s_first_data_block != … https://www.cve.org/CVERecord?id=CVE-2026-31447

    Post summary

    The text announces that CVE‑2026‑31447 in the Linux kernel has been resolved, providing a brief technical description of the vulnerability but no PoC, exploit, or detailed patch information.

    00000165
    57.2K followersView on X
CPE platform detail6 entries

6 of 6 entries

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

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