CVE-2026-52931 Affecting reiserfs-kmp-default package, versions <6.4.0-150700.53.73.2


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.4% (33rd percentile)

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  • Snyk IDSNYK-SLES157-REISERFSKMPDEFAULT-18209031
  • published22 Jul 2026
  • disclosed21 Jul 2026

Introduced: 21 Jul 2026

NewCVE-2026-52931  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 reiserfs-kmp-default to version 6.4.0-150700.53.73.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream reiserfs-kmp-default package and not the reiserfs-kmp-default package as distributed by SLES. See How to fix? for SLES:15.7 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

batman-adv: tp_meter: avoid use of uninit sender vars

batadv_tp_recv_ack() and batadv_tp_stop() are only valid for tp_vars in the BATADV_TP_SENDER role. When called with a BATADV_TP_RECEIVER role, it proceeds to read sender-only members that were never initialized, leading to undefined behavior.

This can be triggered when a node that is currently acting as a receiver in an ongoing tp_meter session receives a malicious ACK packet.

Guard against this by checking tp_vars->role immediately after the lookup and bailing out if it is not BATADV_TP_SENDER, before any of those members are accessed.

CVSS Base Scores

version 3.1