Out-of-bounds Read Affecting kernel-livepatch-6_4_0-150700_7_22-rt package, versions <1-150700.1.3.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.26% (17th percentile)

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  • Snyk IDSNYK-SLES157-KERNELLIVEPATCH640150700722RT-14068771
  • published20 Nov 2025
  • disclosed19 Nov 2025

Introduced: 19 Nov 2025

CVE-2025-39839  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 kernel-livepatch-6_4_0-150700_7_22-rt to version 1-150700.1.3.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-6_4_0-150700_7_22-rt package and not the kernel-livepatch-6_4_0-150700_7_22-rt 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: fix OOB read/write in network-coding decode

batadv_nc_skb_decode_packet() trusts coded_len and checks only against skb->len. XOR starts at sizeof(struct batadv_unicast_packet), reducing payload headroom, and the source skb length is not verified, allowing an out-of-bounds read and a small out-of-bounds write.

Validate that coded_len fits within the payload area of both destination and source sk_buffs before XORing.

CVSS Base Scores

version 3.1