Astra Linux – vulnerability in linux-6.1

In the Linux kernel, the following vulnerability has been resolved: batman-adv: bla: reacquire gw address after skb realloc The pskbmaypull function called by batadvblaisbackbonegw may reallocate the buffer behind the skb. Variables referencing the old buffer must be reassigned to prevent...

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Astra Linux – vulnerability in linux-6.1, linux-6.12

In the Linux kernel, the following vulnerability has been resolved: batman-adv: bla: only purge non-released claims When batadvblapurgeclaims processes the list of claims, it only iterates over the hash list using an rcureadlock. Due to a possible parallel batadvclaimput, it is possible that it...

Astra Linux – vulnerability in linux-6.1, linux-6.12

In the Linux kernel, the following vulnerability has been resolved: batman-adv: bla: prevent use-after-free when deleting claims When batadvbladelbackboneclaims removes all claims for a backbone, it does so by removing the link entry from the hash list. This list entry itself was one of the...

Astra Linux – vulnerability in linux-6.1, linux-5.10, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: batman-adv: hold claim backbone gateways by reference batadvblaaddclaim can replace claim-backbonegw and drop the old gateway's last reference while readers still follow the pointer. The netlink claim dump path dereferences...

SUSE CVE-2026-89948

In the Linux kernel, the following vulnerability has been resolved: batman-adv: bla: fix freeing of claims on meshif deletion When the mesh interface is getting deleted, then batadvbladelbackboneclaims via batadvblapurgebackbonegw could make sure that all claims gets removed. But this function is...

Linux Distros Unpatched Vulnerability : CVE-2026-93203

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - batman-adv: bla: avoid CRC corruption due to parallel claim add batadvblaaddclaim is used to add claims and modify the backbone of claims for CLAIM frames from...

CVE-2026-93203 batman-adv: bla: avoid CRC corruption due to parallel claim add

In the Linux kernel, the following vulnerability has been resolved: batman-adv: bla: avoid CRC corruption due to parallel claim add batadvblaaddclaim is used to add claims and modify the backbone of claims for CLAIM frames from remote backbones and local packets. When it handles a claim, it needs...

CVE-2026-93203 batman-adv: bla: avoid CRC corruption due to parallel claim add

In the Linux kernel, the following vulnerability has been resolved: batman-adv: bla: avoid CRC corruption due to parallel claim add batadvblaaddclaim is used to add claims and modify the backbone of claims for CLAIM frames from remote backbones and local packets. When it handles a claim, it needs...

CVE-2026-93203

CVE-2026-93203 is a race condition in the Linux kernel's batman-adv mesh networking module, specifically in the Bridge Loop Avoidance (BLA) subsystem. The function batadv_bla_add_claim() can corrupt the CRC16 of backbone gateway entries when a new claim and a backbone ownership change execute in ...

PT-2026-94999

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the batman-adv module where parallel execution of claim addition and backbone modification can lead to CRC corruption. The batadv bla add claim function handles adding...

DEBIAN-CVE-2026-89948

In the Linux kernel, the following vulnerability has been resolved: batman-adv: bla: fix freeing of claims on meshif deletion When the mesh interface is getting deleted, then batadvbladelbackboneclaims via batadvblapurgebackbonegw could make sure that all claims gets removed. But this function is...

CVE-2026-89948 batman-adv: bla: fix freeing of claims on meshif deletion

In the Linux kernel, the following vulnerability has been resolved: batman-adv: bla: fix freeing of claims on meshif deletion When the mesh interface is getting deleted, then batadvbladelbackboneclaims via batadvblapurgebackbonegw could make sure that all claims gets removed. But this function is...

EUVD-2026-80548

In the Linux kernel, the following vulnerability has been resolved: batman-adv: bla: fix freeing of claims on meshif deletion When the mesh interface is getting deleted, then batadvbladelbackboneclaims via batadvblapurgebackbonegw could make sure that all claims gets removed. But this function is...

CVE-2026-89948

CVE-2026-89948 affects the batman-adv (B.A.T.M.A.N. advanced) module in the Linux kernel , specifically its BLA (Backbone Link Aggregation) subsystem. The root cause is a logic bug: when a mesh interface is deleted, batadv_bla_del_backbone_claims() is never actually executed because bat_priv->...

CVE-2026-89948: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: batman-adv: bla: fix freeing of claims on meshif deletion When the mesh interface is getting deleted, then batadvbladelbackboneclaims via batadvblapurgebackbonegw could make sure that all claims gets removed. But this function is...

PT-2026-93589

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the batman-adv BLA Border Gateway Advertisement component during the deletion of a mesh interface. The function batadv bla del backbone claims called via batadv bla...

Linux Distros Unpatched Vulnerability : CVE-2026-89948

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - batman-adv: bla: fix freeing of claims on meshif deletion When the mesh interface is getting deleted, then batadvbladelbackboneclaims via batadvblapurgebackbone...

SUSE CVE-2026-72233

In the Linux kernel, the following vulnerability has been resolved: batman-adv: bla: reacquire gw address after skb realloc The pskbmaypull called by batadvblaisbackbonegw could reallocate the buffer behind the skb. Variables which were pointing to the old buffer need to be reassigned to avoid an...

CVE-2026-72233

In the Linux kernel, the following vulnerability has been resolved: batman-adv: bla: reacquire gw address after skb realloc The pskbmaypull called by batadvblaisbackbonegw could reallocate the buffer behind the skb. Variables which were pointing to the old buffer need to be reassigned to avoid an...