Detections
Analytics

Google: sys-kernel/csql-kernel-6_6, sys-kernel/lakitu-kernel-6_6, sys-kernel/lakitu-nc-kernel-6_6, sys-kernel/lakitu-vgpu-kernel-6_6: security update to 18867.528.3

high Tenable Cloud Security Plugin ID 467149

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: bpf: Use RCU-safe iteration in
 dev_map_redirect_multi() SKB path The DEVMAP_HASH branch in dev_map_redirect_multi() uses
 hlist_for_each_entry_safe() to iterate hash buckets, but this function runs under RCU protection (called
 from xdp_do_generic_redirect_map() in softirq context). Concurrent writers (__dev_map_hash_update_elem,
 dev_map_hash_delete_elem) modify the list using RCU primitives (hlist_add_head_rcu, hlist_del_rcu).
 hlist_for_each_entry_safe() performs plain pointer dereferences without rcu_dereference(), missing the
 acquire barrier needed to pair with writers' rcu_assign_pointer(). On weakly-ordered architectures (ARM64,
 POWER), a reader can observe a partially-constructed node. It also defeats CONFIG_PROVE_RCU lockdep
 validation and KCSAN data-race detection. Replace with hlist_for_each_entry_rcu() using
 rcu_read_lock_bh_held() as the lockdep condition, consistent with the rcu_dereference_check() used in the
 DEVMAP (non-hash) branch of the same functions. Also fix the same incorrect
 lockdep_is_held(&dtab->index_lock) condition in dev_map_enqueue_multi(), where the lock is not held
 either. (CVE-2026-53096)

Solution

Update the sys-kernel/csql-kernel-6_6 library and its related packages to version 18867.528.3 or later.

See Also

https://storage.googleapis.com/cos-oval-vulnerability-feed/cos-121.oval.xml.tar.gz

Plugin Details

Severity: High

ID: 467149

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 96.56

Vendor

Vendor Severity: HIGH

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2026-53096

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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: 6/3/2026

Reference Information

CVE: CVE-2026-53096