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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.68%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.68% probability · 50th percentile
- CISA KEV
- Not listed
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.