CVE-2026-64088

In the Linux kernel, the following vulnerability has been resolved: batman-adv: tt: fix negative tt_buff_len batadv_orig_node::tt_buff_len was declared as s16, but the field is never intended to hold a negative value. When a value greater than 32767 is assigned, it wraps to a negative signed integer. In batadv_send_other_tt_response(), tt_buff_len is temporarily widened to s32. The incorrectly negative s16 value propagates into the s32, causing batadv_tt_prepare_tvlv_global_data() to allocate a full sized buffer but populates only a small portion of it with the collected changeset. All remaining bits are kept uninitialized. Using an u16 avoids this type confusion and ensures that no (negative) sign extension is performed in batadv_send_other_tt_response().

• https://git.kernel.org/stable/c/32edd2a28e112064020a2f319a8cb8a9e5a09767Patch
• https://git.kernel.org/stable/c/33e5ede7ce6d92e531920d4bbd6d3e18ef1c6430Patch
• https://git.kernel.org/stable/c/3c96dff00998314983b68a3e7caac07a66ebe496Patch
• https://git.kernel.org/stable/c/4c4c2f340f4c27373bfcac8dc5032ce7bb474e47Patch
• https://git.kernel.org/stable/c/4dab98961426d0cf6a1599cda6950b7596ca2fcdPatch
• https://git.kernel.org/stable/c/730de8733dd90f70d7580a9b329b971f8e1474a2Patch
• https://git.kernel.org/stable/c/b64963a2ceeb7529310b6cf253a1e540784422f4Patch
• https://git.kernel.org/stable/c/ed28ead3420c373a7928622f114bc6168075d1e1Patch

Published

Jul 19, 2026

Last Modified

Aug 11, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-64082In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2026-64083In the Linux kernel, the following vulnerability has been re…
• CVE-2026-64084In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2026-64085In the Linux kernel, the following vulnerability has been re…
• CVE-2026-64086In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2026-64087In the Linux kernel, the following vulnerability has been re…
• CVE-2026-64089In the Linux kernel, the following vulnerability has been re…9.8
• CVE-2026-6409A Denial of Service (DoS) vulnerability exists in the Protob…7.1
• CVE-2026-64090In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-64091In the Linux kernel, the following vulnerability has been re…9.8
• CVE-2026-64092In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-64093In the Linux kernel, the following vulnerability has been re…8.8