Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') Affecting torvalds/linux package, versions [6.11,6.12.114)[6.13,6.18.40)[6.19,7.1.5)


Severity

Recommended
0.0
critical
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.66% (52nd percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-20794101
  • published11 Oct 2026
  • disclosed15 Aug 2026
  • creditUnknown

Introduced: 15 Aug 2026

CVE-2026-72366  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 6.12.114, 6.18.40, 7.1.5 or higher.

Overview

Affected versions of this package are vulnerable to Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in the netfs_create_write_req process. An attacker can cause kernel heap or folio corruption during local pagecache I/O by manipulating the timing of asynchronous cache object creation and subsequent kernel writeback over the network. This can be achieved by controlling both sides of the race condition through interleaving reads and writes or triggering writeback while the fscache cookie is still in the CREATING or LOOKING_UP state, potentially leading to arbitrary kernel writes, privilege escalation, or system crashes.

Note: The Linux kernel project assigns a CVE to every bug fix it ships, whether or not the bug has been shown to be exploitable. This advisory was generated from that process and has not been individually assessed for exploitability. See the kernel's CVE process documentation: https://github.com/torvalds/linux/blob/master/Documentation/process/cve.rst

CVSS Base Scores

version 4.0
version 3.1