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 18867.624.2

critical Tenable Cloud Security Plugin ID 472612

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: isofs: fix out-of-bounds page array
 access on empty zisofs block zisofs_uncompress_block()'s empty-block fast path returns pcount <<
 PAGE_SHIFT, ignoring the incoming poffset, unlike the decompression path which returns bytes produced
 relative to poffset. zisofs_fill_pages() uses that return to advance its page cursor, so when the zisofs
 block size is below PAGE_SIZE and a sub-page block leaves poffset partway into a page, a following empty
 block over-counts and advances pages[] one element past its end, after which "if (poffset && *pages)"
 reads pages[1] out of bounds. rock.c only rejects a block-size shift > 17, so a crafted "ZF" Rock Ridge
 record can set it below PAGE_SHIFT; the bug is reached by an ordinary read() of a compressed file on such
 a mounted ISO9660 image. Return the byte count relative to poffset and zero only [poffset, PAGE_SIZE) of
 the first page, matching the decompression path. The page-aligned case (poffset == 0) is unaffected. BUG:
 KASAN: slab-out-of-bounds in zisofs_read_folio (fs/isofs/compress.c:290) Read of size 8 at addr
 ffff88800f5eac48 by task exploit/142 zisofs_read_folio (fs/isofs/compress.c:290) read_pages
 (mm/readahead.c:184) ... filemap_read (mm/filemap.c:2814) vfs_read (fs/read_write.c:574) __x64_sys_pread64
 (fs/read_write.c:769) do_syscall_64 (arch/x86/entry/syscall_64.c:94) entry_SYSCALL_64_after_hwframe
 (arch/x86/entry/entry_64.S:121) The buggy address is located 0 bytes to the right of the allocated 8-byte
 region in the kmalloc-8 cache (CVE-2026-89778)

Solution

Update the sys-kernel/csql-kernel-6_6 library and its related packages to version 18867.624.2 or later.

See Also

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

Plugin Details

Severity: Critical

ID: 472612

Version: Revision 1.1

Type: Local

Published: 10/5/2026

Updated: 10/5/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.25

Vendor

Vendor Severity: HIGH

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-89778

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/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: 9/16/2026

Reference Information

CVE: CVE-2026-89778