Detections
Analytics

Google: sys-kernel/csql-kernel-6_1, sys-kernel/csql-kernel-6_6, sys-kernel/lakitu-kernel-6_1, sys-kernel/lakitu-kernel-6_6, sys-kernel/lakitu-nc-kernel-6_6, sys-kernel/lakitu-vgpu-kernel-6_6, sys-kernel/tpusev-kernel-6_6: security update to 18613.731.2

low Tenable Self-Hosted Container Security Plugin ID 465800

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - In the Linux kernel, the following vulnerability has been resolved: fs: refuse O_TMPFILE creation with an
 unmapped fsuid or fsgid vfs_tmpfile() never checked that the caller's fsuid and fsgid map into the
 filesystem. On an idmapped mount whose idmapping does not cover the caller's fs{u,g}id, the ->tmpfile()
 instance initializes the new inode through inode_init_owner(), where mapped_fsuid()/mapped_fsgid() return
 INVALID_UID/INVALID_GID, and the tmpfile ends up owned by (uid_t)-1. Every other creation path already
 refuses this: may_o_create() (O_CREAT) and may_create_dentry() (mkdir, mknod, symlink, link) bail out with
 -EOVERFLOW via fsuidgid_has_mapping() precisely so that an object cannot be created with an owner the
 filesystem cannot represent. An O_TMPFILE is no exception: it is created I_LINKABLE and linkat(2) can
 splice it into the namespace afterwards, so the same guarantee must hold. Add the missing
 fsuidgid_has_mapping() check to vfs_tmpfile(). On a non-idmapped mount the caller's fs{u,g}id always map
 in the superblock's user namespace, so this is a no-op there and only takes effect on an idmapped mount
 that does not map the caller. It applies to every filesystem that sets FS_ALLOW_IDMAP and implements
 ->tmpfile() (tmpfs, ext4, btrfs, xfs, f2fs, ...), and to overlayfs, whose upper-layer tmpfile creation
 funnels through vfs_tmpfile() via backing_tmpfile_open(). (CVE-2026-72379)

Solution

Update the sys-kernel/csql-kernel-6_1 library and its related packages to version 18613.731.2 or later.

See Also

https://storage.googleapis.com/cos-oval-vulnerability-feed/cos-117.oval.xml.tar.gz

Plugin Details

Severity: Low

ID: 465800

Version: Revision 1.3

Type: Local

Published: 10/2/2026

Updated: 10/3/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

Vendor

Vendor Severity: LOW

CVSS v2

Risk Factor: Low

Base Score: 1.7

Temporal Score: 1.3

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:P/A:N

CVSS Score Source: CVE-2026-72379

CVSS v3

Risk Factor: Low

Base Score: 3.3

Temporal Score: 2.9

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 8/11/2026

Reference Information

CVE: CVE-2026-72379