Answer in brief
CVE-2024-35982 records a Medium severity (CVSS 5.1) vulnerability in batman-adv: Avoid infinite loop trying to resize local TT. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), linux/linux_kernel (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), linux/linux_kernel (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=a19d3d85e1b854e4a483a55d740a42458085560d <04720ea2e6c64459a90ca28570ea78335eccd924 || >=a19d3d85e1b854e4a483a55d740a42458085560d <b3ddf6904073990492454b1dd1c10a24be8c74c6 || >=a19d3d85e1b854e4a483a55d740a42458085560d <70a8be9dc2fb65d67f8c1e0c88c587e08e2e575d || >=a19d3d85e1b854e4a483a55d740a42458085560d <87b6af1a7683e021710c08fc0551fc078346032f || >=a19d3d85e1b854e4a483a55d740a42458085560d <3fe79b2c83461edbbf86ed8a6f3924820ff89259 || >=a19d3d85e1b854e4a483a55d740a42458085560d <4ca2a5fb54ea2cc43edea614207fcede562d91c2 || >=a19d3d85e1b854e4a483a55d740a42458085560d <ca54e2671548616ad34885f90d4f26f7adb088f0 || >=a19d3d85e1b854e4a483a55d740a42458085560d <b1f532a3b1e6d2e5559c7ace49322922637a28aa | 04720ea2e6c64459a90ca28570ea78335eccd924, b3ddf6904073990492454b1dd1c10a24be8c74c6, 70a8be9dc2fb65d67f8c1e0c88c587e08e2e575d, 87b6af1a7683e021710c08fc0551fc078346032f, 3fe79b2c83461edbbf86ed8a6f3924820ff89259, 4ca2a5fb54ea2cc43edea614207fcede562d91c2, ca54e2671548616ad34885f90d4f26f7adb088f0, b1f532a3b1e6d2e5559c7ace49322922637a28aa |
| Linux/Linuxgeneric | 3.13 | Not reported |
| linux/linux_kernelgeneric | 3.13 | Not reported |
| Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystemgeneric | >=0 <V1.1.1 | V1.1.1 |
Published upstream
May 20, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 15, 2026
In the Linux kernel, the following vulnerability has been resolved: batman-adv: Avoid infinite loop trying to resize local TT If the MTU of one of an attached interface becomes too small to transmit the local translation table then it must be resized to fit inside all fragments (when enabled) or a single packet. But if the MTU becomes too low to transmit even the header + the VLAN specific part then the resizing of the local TT will never succeed. This can for example happen when the usable space is 110 bytes and 11 VLANs are on top of batman-adv. In this case, at least 116 byte would be needed. There will just be an endless spam of batman_adv: batadv0: Forced to purge local tt entries to fit new maximum fragment MTU (110) in the log but the function will never finish. Problem here is that the timeout will be halved all the time and will then stagnate at 0 and therefore never be able to reduce the table even more. There are other scenarios possible with a similar result. The number of BATADV_TT_CLIENT_NOPURGE entries in the local TT can for example be too high to fit inside a packet. Such a scenario can therefore happen also with only a single VLAN + 7 non-purgable addresses - requiring at least 120 bytes. While this should be handled proactively when: * interface with too low MTU is added * VLAN is added * non-purgeable local mac is added * MTU of an attached interface is reduced * fragmentation setting gets disabled (which most likely requires dropping attached interfaces) not all of these scenarios can be prevented because batman-adv is only consuming events without the the possibility to prevent these actions (non-purgable MAC address added, MTU of an attached interface is reduced). It is therefore necessary to also make sure that the code is able to handle also the situations when there were already incompatible system configuration are present.
Quoted source text, attributed separately from HOL analysis.