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 18613.675.56

medium Tenable Cloud Security Plugin ID 466223

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: xfrm: policy: preallocate inexact bins
 before xfrm_hash_rebuild reinsert xfrm_hash_rebuild()'s first loop preallocates the bins/chains the
 reinsert loop needs, so the reinsert (after hlist_del_rcu()) cannot allocate or fail. But its guard is
 inverted: it skips policies with prefixlen < threshold and preallocates for the rest. prefixlen <
 threshold is exactly when policy_hash_bysel() returns NULL and the reinsert takes the allocating
 xfrm_policy_inexact_insert() path. So the loop preallocates for the exact policies (which never allocate)
 and skips the inexact ones, whose bin/node is then allocated GFP_ATOMIC during reinsert. On failure the
 error path only WARN_ONCE()s and continues, leaving a poisoned bydst node; the next rebuild's
 hlist_del_rcu() dereferences LIST_POISON2 and takes a GPF. Reachable under memory pressure, deterministic
 via failslab. Invert the guard so preallocation covers exactly the reinserted policies; the reinsert then
 allocates nothing and cannot fail. Crash: Oops: general protection fault, probably for non-canonical
 address 0xfbd59c0000000024: 0000 [#1] SMP KASAN NOPTI KASAN: maybe wild-memory-access in range [0xdead...]
 ... Workqueue: events xfrm_hash_rebuild RIP: 0010:xfrm_hash_rebuild+0x5b3/0x1190 RAX: dead000000000122
 (LIST_POISON2 + offset) ... Call Trace: hlist_del_rcu (include/linux/rculist.h:599) xfrm_hash_rebuild
 (net/xfrm/xfrm_policy.c:1365) process_one_work (kernel/workqueue.c:3322) worker_thread
 (kernel/workqueue.c:3486) kthread (kernel/kthread.c:436) ret_from_fork (arch/x86/kernel/process.c:158)
 ret_from_fork_asm (arch/x86/entry/entry_64.S:245) ... Kernel panic - not syncing: Fatal exception in
 interrupt (CVE-2026-64579)

Solution

Update the sys-kernel/csql-kernel-6_1 library and its related packages to version 18613.675.56 or later.

See Also

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

Plugin Details

Severity: Medium

ID: 466223

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.72

Vendor

Vendor Severity: LOW

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2026-64579

CVSS v3

Risk Factor: Medium

Base Score: 4.1

Temporal Score: 3.6

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 8/5/2026

Reference Information

CVE: CVE-2026-64579