by Kastro
Paper/Archive/CVE-2026-72366

CVE-2026-72366

Linux Linux — netfs: Fix netfs_create_write_req() to handle async cache object creation

EPSS 0.7%CVSS 9.8
critical.is priorityof 100
40
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 51.9.519 × 2010.4No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

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().

Affected

ProductAffectedFixed inSource
Linux7b589a9b45ae32aa9d7bece597490e141198d7a6 – < aee03fbc8803a40d65e20f1af816a7219048a426aee03fbc8803a40d65e20f1af816a7219048a426CNA
Linux7b589a9b45ae32aa9d7bece597490e141198d7a6 – < 8ab75e445c161c4cb504aa98e20ce1dd1ecd8e9a8ab75e445c161c4cb504aa98e20ce1dd1ecd8e9aCNA
Linux7b589a9b45ae32aa9d7bece597490e141198d7a6 – < 1188a9846fadeacf9d1430b528e5217f749d665b1188a9846fadeacf9d1430b528e5217f749d665bCNA
Linux7b589a9b45ae32aa9d7bece597490e141198d7a6 – < dbd6f56d975b23241b7bbb11bb8f562af548a0aadbd6f56d975b23241b7bbb11bb8f562af548a0aaCNA
Linux6.116.12.114CNA

Scores by source

Linux (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

refgit.kernel.org/stable/c/aee03fbc8803a40d65e20f1af816a7219048a426refgit.kernel.org/stable/c/8ab75e445c161c4cb504aa98e20ce1dd1ecd8e9arefgit.kernel.org/stable/c/1188a9846fadeacf9d1430b528e5217f749d665brefgit.kernel.org/stable/c/dbd6f56d975b23241b7bbb11bb8f562af548a0aa