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CVE-2026-72231

batman-adv: tt: avoid request storms during pending request

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.261, 5.15.212, 6.1.178, 6.6.145, 6.12.97, and 2 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: partial

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: partial

  3. Record last updated

Affected versions

  • Linux Linux

    From 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 · fixed in 6055695ea40c64a47e00742c12c99b1a33b4daed; From 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 · fixed in 21c44a6895f41df811d1c91d10eea194dda2b345; From 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 · fixed in 5e46c76d9a5062212c4c5f642a5549fd9c057f8a; From 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 · fixed in 067e413eec2e63c2996909ef55214b3a0eda0be7; From 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 · fixed in 716f434eb35869e130424331584a91fbb729b9bd; From 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 · fixed in 6a65ac8a81e903bb4b555c1d13532f5cb0167a4a; From 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 · fixed in aba1cf21954e64c36afb966b754adad2b0b8aa48; From 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 · fixed in 27c7d40008231ae4140d35501b60087a9de2d2c3

  • Linux Linux

    3.13

  • KernelLinux

    From 3.13.0 · fixed in 5.10.261; From 5.11.0 · fixed in 5.15.212; From 5.16.0 · fixed in 6.1.178; From 6.2.0 · fixed in 6.6.145; From 6.7.0 · fixed in 6.12.97; From 6.13.0 · fixed in 6.18.40; From 6.19.0 · fixed in 7.1.5

References 8

git.kernel.org