High 7.5Published Aug 15, 2026

CVE-2026-72231batman-adv: tt: avoid request storms during pending request

Updated under an hour ago (Oct 28, 2026, 3:40 AM ET)

Does this affect you?

It affects Linux. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Linux

Exploited in the last 30 days

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: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Oct 16, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 before 6055695ea40c64a47e00742c12c99b1a33b4daed; 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 builds before 21c44a6895f41df811d1c91d10eea194dda2b345; 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 builds before 5e46c76d9a5062212c4c5f642a5549fd9c057f8a; 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 builds before 067e413eec2e63c2996909ef55214b3a0eda0be7; from 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 before 716f434eb35869e130424331584a91fbb729b9bd; 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 builds before 6a65ac8a81e903bb4b555c1d13532f5cb0167a4a; from 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 before aba1cf21954e64c36afb966b754adad2b0b8aa48; 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 builds before 27c7d40008231ae4140d35501b60087a9de2d2c3	CNA record

References

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.