CVE-2026-72363
Received Received - Intake

Linux Kernel Folio State Corruption in Writeback

Publication date: 2026-08-15

Last updated on: 2026-08-15

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: netfs: Fix folio state after ENOMEM whilst under writeback iteration Fix the state of the current folio when ENOMEM occurs during writeback iteration. The folio needs to be redirtied and unlocked before the terminal writeback_iter() is invoked.

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Meta Information

Published
2026-08-15
Last Modified
2026-08-15
Generated
2026-08-15
AI Q&A
2026-08-15
EPSS Evaluated
N/A
NVD
CVE-2026-72363
EUVD
EUVD-2026-59262

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *

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Exploitability

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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability in the Linux kernel involves a flaw in handling memory allocation errors during file write operations. When the system runs out of memory (ENOMEM) while writing data to a file, the kernel fails to properly reset the state of the affected file page (folio). This can leave the page in an inconsistent state, potentially causing data corruption or system instability.

Detection Guidance

This vulnerability is specific to the Linux kernel's netfs component and may not have direct detection commands. Monitor kernel logs for writeback errors or ENOMEM conditions during file operations. Check for system crashes or hangs during heavy I/O operations.

Impact Analysis

This vulnerability may lead to system crashes, data corruption, or unexpected behavior during file write operations. Users could experience application failures, file system errors, or reduced system performance if the kernel mishandles memory allocation during writes.

Mitigation Strategies

Apply the latest Linux kernel patches or updates that address this issue. If immediate patching is not possible, reduce I/O load on affected systems and monitor for writeback failures. Restart services if crashes occur.

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