CVE-2026-72366
kernel: netfs: Fix netfs_create_write_req() to handle async cache object creation
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · August 15, 2026
Updated · October 7, 2026
Description
In the Linux kernel, the following vulnerability has been resolved:
netfs: Fix netfs_create_write_req() to handle async cache object creation
netfs_create_write_req() will skip caching if the fscache cookie is disabled, but this is a problem because async cache object creation might not have got far enough yet that has been enabled - thereby causing the call to fscache_begin_write_operation() to be skipped.
Fix this by removing the checks on the cookie and delegating this to fscache_begin_write_operation().
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-367 · Time-of-check Time-of-use (TOCTOU) Race Condition