CVE-2026-72231

In the Linux kernel, the following vulnerability has been resolved: batman-adv: tt: avoid request storms during pending request batadv_send_tt_request() allocates a tt_req_node when none exists for the destination originator node. This should prevent that a multiple TT requests are send at the same time to an originator. But if allocation of the send buffer failed, this request must be cleaned up again. But indicator for such a failure is "ret == false". But the actual implementation is checking for "ret == true". The check must be inverted to not loose the information about the TT request directly after it was attempted to be sent out. This should avoid potential request storms.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/067e413eec2e63c2996909ef55214b3a0eda0be7
https://git.kernel.org/stable/c/21c44a6895f41df811d1c91d10eea194dda2b345
https://git.kernel.org/stable/c/27c7d40008231ae4140d35501b60087a9de2d2c3
https://git.kernel.org/stable/c/5e46c76d9a5062212c4c5f642a5549fd9c057f8a
https://git.kernel.org/stable/c/6055695ea40c64a47e00742c12c99b1a33b4daed
https://git.kernel.org/stable/c/6a65ac8a81e903bb4b555c1d13532f5cb0167a4a
https://git.kernel.org/stable/c/716f434eb35869e130424331584a91fbb729b9bd
https://git.kernel.org/stable/c/aba1cf21954e64c36afb966b754adad2b0b8aa48

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-15 06:21

Updated : 2026-08-17 06:18

NVD link : CVE-2026-72231

Mitre link : CVE-2026-72231

CVE.ORG link : CVE-2026-72231

JSON object : View

Products Affected

No product.

CWE

No CWE.

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This should prevent that a multiple TT\nrequests are send at the same time to an originator.\n\nBut if allocation of the send buffer failed, this request must be cleaned\nup again. But indicator for such a failure is \"ret == false\". But the\nactual implementation is checking for \"ret == true\".\n\nThe check must be inverted to not loose the information about the TT\nrequest directly after it was attempted to be sent out. This should avoid\npotential request storms."}], "lastModified": "2026-08-17T06:18:24.377", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}