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CVE-2026-98907

btrfs: protect sb_write_pointer() with invalidate lock

No known exploitation. No EPSS score yet. Fixed versions are out.

CVSS —Not scoredEPSS percentile—No score yetCISA KEVNot listedNo confirmed exploitation
No public exploit knownFix1 product4 fixed builds listed below

Published Updated Sources: CVE.org

NVD CVE.org

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  • LinuxAffected: ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < c9b38f2eab5a9bd74087390318d93ccdd8d2deffUpgrade to: c9b38f2eab5a9bd74087390318d93ccdd8d2deffAffected: ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < a0dc28359a8a26f970ccd250b126a2e0bd4118a5Upgrade to: a0dc28359a8a26f970ccd250b126a2e0bd4118a5Affected: ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 1a6c92aa7242a04e4349c0ea213dbf703a1c9891Upgrade to: 1a6c92aa7242a04e4349c0ea213dbf703a1c9891Affected: ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < a58cab4535f085adc0f93d7efd7952ef437371daUpgrade to: a58cab4535f085adc0f93d7efd7952ef437371da + 7 more branchesStated by: CVE record

Versions as the sources state them. Full version matrix after sign-in

What it is

From the CVE record

In the Linux kernel, the following vulnerability has been resolved: btrfs: protect sb_write_pointer() with invalidate lock sb_write_pointer() reads the super block from the block device page cache using read_cache_page_gfp(). This has the same race with BLKBSZSET as the one fixed by commit 3f29d661e568 ("btrfs: sync read disk super and set block size"). Take the mapping invalidate lock around read_cache_page_gfp() to serialize the read against block size changes.

In plain language

No plain-language summary for this CVE yet.

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

CISA KEV

Not in the catalog. CISA has not confirmed exploitation.

Public exploits

No public exploit or proof of concept found in the sources we track.

EPSS

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Affected products

Sources

References in the record

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