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Chainguard: linux-desktop-7.2-bootc: security update to 7.2.7-r0

high Tenable Cloud Security Plugin ID 474654

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: ntfs: bound $AttrDef table walk to the
 loaded table size ntfs_attr_find_in_attrdef() walks the in-memory $AttrDef table, but the loop condition
 bounds only the start of each entry, not the whole entry: for (ad = vol->attrdef; (u8 *)ad - (u8
 *)vol->attrdef < vol->attrdef_size && ad->type; ++ad) struct attr_def is 160 bytes; the guard reads
 ad->type at offset 128 and the loop body reads further fields. vol->attrdef is kvzalloc(i_size), where
 i_size is the on-disk $AttrDef data size, checked in load_and_init_attrdef() only as 0 < i_size <=
 0x7fffffff. A volume whose $AttrDef data size is smaller than one entry (e.g. 120 bytes) makes the read of
 ad->type run past the allocation. Creating a file reaches this through ntfs_attr_size_bounds_check() and
 reads out of bounds: BUG: KASAN: slab-out-of-bounds in ntfs_attr_find_in_attrdef+0x66/0xa0 Read of size 4
 at addr ffff888005833280 by task init/1 ntfs_attr_find_in_attrdef ntfs_attr_size_bounds_check
 ntfs_attr_can_be_non_resident ntfs_attr_add Require the whole entry to lie within attrdef_size in the loop
 guard, and reject at mount a $AttrDef too small to hold one attr_def entry. (CVE-2026-98136)

Solution

Update the linux-desktop-7.2-bootc library and its related packages to version 7.2.7-r0 or later.

Plugin Details

Severity: High

ID: 474654

Version: Revision 1.1

Type: Local

Published: 10/16/2026

Updated: 10/16/2026

Risk Information

VPR

Risk Factor: High

Score: 7

Percentile: 98.05

CVSS v2

Risk Factor: Medium

Base Score: 6.2

Temporal Score: 4.6

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

CVSS Score Source: CVE-2026-98136

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.2

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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: 9/25/2026

Reference Information

CVE: CVE-2026-98136