CVE-2026-46238In the Linux kernel, the following vulnerability has been resolved: batman-adv: stop caching unowned originator pointers in BAT IV BAT IV keeps the last-hop neighbor address in each neigh_node, but s…
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In the Linux kernel, the following vulnerability has been resolved: batman-adv: stop caching unowned originator pointers in BAT IV BAT IV keeps the last-hop neighbor address in each neigh_node, but some paths also cache an originator pointer derived from a temporary lookup. That pointer is not owned by the neigh_node and may no longer refer to a live originator entry after purge handling runs. Stop storing the auxiliary originator pointer in the BAT IV neighbor state. When BAT IV needs the neighbor originator data, resolve it from the stored neighbor address and drop the reference again after use. [sven: avoid bonding logic for outgoing OGM]
- CVSS
- 8.8 HIGH (v3.1, NVD)CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/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
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
linux linux_kernel linux:linux_kernel | from 2.6.38 before 5.10.258; from 5.11 before 5.15.209; from 5.16 before 6.1.175; from 6.2 before 6.6.140; from 6.7 before 6.12.90; from 6.13 before 6.18.32; from 6.19 before 7.0.9; 7.1; and 2 more ranges | NVD |
References
- https://git.kernel.org/stable/c/09dc0d1a12222ffca6481916eab3cfea477b9620patch
- https://git.kernel.org/stable/c/384e3050a42be9085d50507b4d5f8266a588d742patch
- https://git.kernel.org/stable/c/67bceeb22207f1f5a402973a3a0809e5f2698f38patch
- https://git.kernel.org/stable/c/6e20700f8c524ac379ba8274ff5d453023b7c006patch
- https://git.kernel.org/stable/c/86b2b58d7c228d850c8c78e4144e6123e8ed2718patch
- https://git.kernel.org/stable/c/8c16c68fdbb69778f8d04f650340c3f4d1518f8epatch
- https://git.kernel.org/stable/c/aafcbaf1159ea224528ca4075d0ba8c10ef374afpatch
- https://git.kernel.org/stable/c/f03e8583532941b07761c5429de7d50766fa3110patch
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.