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CVE-2026-98447xfs: fix wild memcpy access when formatting ondisk rtrefcount btree roots

Description

In the Linux kernel, the following vulnerability has been resolved: xfs: fix wild memcpy access when formatting ondisk rtrefcount btree roots LOLLM noticed that the inode btree root formatting methods copy too many bytes -- there's only one set of keys in node blocks, not two. This causes memory corruption of whatever's beyond the buffers.

Timeline

  1. ID reserved

    By Linux

  2. · 23 days later

    Published

  3. · 1 day later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.

EPSS (exploitation in 30 days)
0.17% · top 94% of all CVEs (13 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.

Affected products

  • Linux · Linux

    • affected f0415af60f482a2192065be8b334b409495ca8a3 – < d46492fb8018d12d00651b06b9d240e747110b38
    • affected f0415af60f482a2192065be8b334b409495ca8a3 – < 2703b954d306ebfe3b11e33e259759329c11b690
    • affected f0415af60f482a2192065be8b334b409495ca8a3 – < fe2f9135df43db849e74f03956d322ac20b59af7

  • Linux · Linux

    • affected 6.14
    • unaffected < 6.14
    • unaffected 6.18.55 – ≤ 6.18.*
    • unaffected 7.2.9 – ≤ 7.2.*
    • unaffected 7.3 – ≤ *

References

References3

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .