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CVE-2026-43117

critical

In the Linux kernel, the following vulnerability has been resolved: btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file() If over…

Vendor / product: Linux — linux kernel

In the Linux kernel, the following vulnerability has been resolved: btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file() If overlay is used on top of btrfs, dentry->d_sb translates to overlay's super block and fsid assignment will lead to a crash. Use file_inode(file)->i_sb to always get btrfs_sb.

CVSS
9.1
9.1 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Severity source: NVD CVSS v3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
Timeline (UTC)
Published: 2026-05-06 10:16
Modified: 2026-11-11 21:10
NVD status: Modified
Last synced 5 hours ago
Verified against the source API 2026-11-11 21:11 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

linux / linux_kernel ≥4.8 <6.6.136, ≥6.7 <6.12.83, ≥6.13 <6.18.24, ≥6.19 <6.19.14, 7.0

Weakness classification (CWE)

NVD-CWE-noinfo CWE-476

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

Patch / mitigation: https://git.kernel.org/stable/c/2e4adfaec97ee053ad1bdfb5036845e66f7e0d8a
Patch / mitigation: https://git.kernel.org/stable/c/32372781d664a9b03c40343e96c29d0a6139f97d
Patch / mitigation: https://git.kernel.org/stable/c/a85b46db143fda5869e7d8df8f258ccef5fa1719
Patch / mitigation: https://git.kernel.org/stable/c/c09a7446aab5773f38d6abb25fce99b8e1dfbc97
Patch / mitigation: https://git.kernel.org/stable/c/d110d7cdb045715c0b45b0dfd974525bb38f653d

References

Data sources

NVD CVE API 2.0 — fetched 2026-11-11 21:11 UTC · record ↗

Learn the basics

Understanding CVEs and CVSS Scores

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