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CVE-2026-90318

Unknown

Last modified

CVE-2026-90318 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: fat: release buffer head after rebuilding parent fat_scan_logstart() leaves the matching directory entry's buffer head in sinfo.bh for the caller to release, just like fat_scan(). fat_rebuild_parent() uses the directory entry to rebuild the parent inode for the nostale_ro NFS export path, but does not release sinfo.bh after a successful scan. Release it once fat_build_inode() has consumed the directory entry data..

Description

In the Linux kernel, the following vulnerability has been resolved: fat: release buffer head after rebuilding parent fat_scan_logstart() leaves the matching directory entry's buffer head in sinfo.bh for the caller to release, just like fat_scan(). fat_rebuild_parent() uses the directory entry to rebuild the parent inode for the nostale_ro NFS export path, but does not release sinfo.bh after a successful scan. Release it once fat_build_inode() has consumed the directory entry data.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= f1e6fb0ab451dae8523fbb8c119a653b2730e938, < 5e44b6944e11fd6647f028219ad0be4e85e9acee; >= f1e6fb0ab451dae8523fbb8c119a653b2730e938, < d2a86329152c69a6200c15b2bf618755f8563826; >= f1e6fb0ab451dae8523fbb8c119a653b2730e938, < 0f18d712ba9c980e05b7e33a27cde4fe3ed2d393; >= f1e6fb0ab451dae8523fbb8c119a653b2730e938, < e38587d98d1ceac608420052c0cdd901d25878f3; >= f1e6fb0ab451dae8523fbb8c119a653b2730e938, < c6a67aa438179cad40f8ae45469e304338d65c0a; >= f1e6fb0ab451dae8523fbb8c119a653b2730e938, < 571ea4263d69df1b48578e4314a828ecd0604755; >= f1e6fb0ab451dae8523fbb8c119a653b2730e938, < 7565e44507634514e3e1899d3acad3de43f7a2c1; >= f1e6fb0ab451dae8523fbb8c119a653b2730e938, < 83e98dbf19ab64e8528e101e20f8d50e1aaa68a8
LinuxLinux3.10

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-90318?
In the Linux kernel, the following vulnerability has been resolved: fat: release buffer head after rebuilding parent fat_scan_logstart() leaves the matching directory entry's buffer head in sinfo.bh for the caller to release, just like fat_scan(). fat_rebuild_parent() uses the directory entry to rebuild the parent inode for the nostale_ro NFS export path, but does not release sinfo.bh after a successful scan. Release it once fat_build_inode() has consumed the directory entry data.
How severe is CVE-2026-90318?
Severity scoring for CVE-2026-90318 is pending analysis.
How do I fix CVE-2026-90318?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST