CVE-2026-63835

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-63835
In the Linux kernel, the following vulnerability has been resolved: batman-adv: v: prevent OGM aggregation on disabled hardif When an interface gets disabled, the worker is correctly disabled by batadv_hardif_disable_interface() -> ... -> batadv_v_ogm_iface_disable(). In this process, the skb aggr_list is also freed. But batadv_v_ogm_send_meshif() can still queue new skbs (via batadv_v_ogm_queue_on_if()) to the aggr_list. This will only stop after all cores can no longer find the RCU protected list of hard interfaces. These queued skbs will never be freed or consumed by batadv_v_ogm_aggr_work. The batadv_v_ogm_iface_disable() function must block batadv_v_ogm_queue_on_if() to avoid leak of skbs.

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/3d4548c96d6f21ac1a9b06c5f82f3ef439c87023 Patch
https://git.kernel.org/stable/c/86ab6b6fb5b82163bf6c45780bb72150021d7349 Patch
https://git.kernel.org/stable/c/97644fdaaf6446ffbe182c5eb804fceb5b1a51b7 Patch
https://git.kernel.org/stable/c/d11c00b95b2a3b3934007fc003dccc6fdcc061ad Patch
https://git.kernel.org/stable/c/d3569327fc7395b2b0461a0a0cb77a0bb74786c0 Patch
https://git.kernel.org/stable/c/d462ced79dd430200cf888984e8005da77fc810b Patch
https://git.kernel.org/stable/c/f04dde74399431fb07abbdd9cd5d0ed624771d04 Patch
https://git.kernel.org/stable/c/f79deaaf822ab0ee2424cf28781f9ab91576bea3 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

12 Nov 2026, 19:50

Type Values Removed Values Added
First Time Linux linux Kernel
Linux
CWE CWE-401
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
References () https://git.kernel.org/stable/c/3d4548c96d6f21ac1a9b06c5f82f3ef439c87023 - () https://git.kernel.org/stable/c/3d4548c96d6f21ac1a9b06c5f82f3ef439c87023 - Patch
References () https://git.kernel.org/stable/c/86ab6b6fb5b82163bf6c45780bb72150021d7349 - () https://git.kernel.org/stable/c/86ab6b6fb5b82163bf6c45780bb72150021d7349 - Patch
References () https://git.kernel.org/stable/c/97644fdaaf6446ffbe182c5eb804fceb5b1a51b7 - () https://git.kernel.org/stable/c/97644fdaaf6446ffbe182c5eb804fceb5b1a51b7 - Patch
References () https://git.kernel.org/stable/c/d11c00b95b2a3b3934007fc003dccc6fdcc061ad - () https://git.kernel.org/stable/c/d11c00b95b2a3b3934007fc003dccc6fdcc061ad - Patch
References () https://git.kernel.org/stable/c/d3569327fc7395b2b0461a0a0cb77a0bb74786c0 - () https://git.kernel.org/stable/c/d3569327fc7395b2b0461a0a0cb77a0bb74786c0 - Patch
References () https://git.kernel.org/stable/c/d462ced79dd430200cf888984e8005da77fc810b - () https://git.kernel.org/stable/c/d462ced79dd430200cf888984e8005da77fc810b - Patch
References () https://git.kernel.org/stable/c/f04dde74399431fb07abbdd9cd5d0ed624771d04 - () https://git.kernel.org/stable/c/f04dde74399431fb07abbdd9cd5d0ed624771d04 - Patch
References () https://git.kernel.org/stable/c/f79deaaf822ab0ee2424cf28781f9ab91576bea3 - () https://git.kernel.org/stable/c/f79deaaf822ab0ee2424cf28781f9ab91576bea3 - Patch
Information

Published : 2026-07-19 12:16

Updated : 2026-11-12 19:50

NVD link : CVE-2026-63835

Mitre link : CVE-2026-63835

CVE.ORG link : CVE-2026-63835

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-401

Missing Release of Memory after Effective Lifetime