CVE-2026-52931
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
batman-adv: tp_meter: avoid use of uninit sender vars
In the Linux kernel, the following vulnerability has been resolved: batman-adv: tp_meter: avoid use of uninit sender vars batadv_tp_recv_ack() and batadv_tp_stop() are only valid for tp_vars in the BATADV_TP_SENDER role. When called with a BATADV_TP_RECEIVER role, it proceeds to read sender-only members that were never initialized, leading to undefined behavior. This can be triggered when a node that is currently acting as a receiver in an ongoing tp_meter session receives a malicious ACK packet. Guard against this by checking tp_vars->role immediately after the lookup and bailing out if it is not BATADV_TP_SENDER, before any of those members are accessed.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 33a3bb4a3345bb511f9c69c913da95d4693e2a4e | affected | git | 0e388af04b3958b178a1b979527f93eb46ea1fee | Unavailable | None listed |
| 33a3bb4a3345bb511f9c69c913da95d4693e2a4e | affected | git | 1a21c055f66e78973712a4a1be2a554f1ee2e4f4 | Unavailable | None listed |
| 33a3bb4a3345bb511f9c69c913da95d4693e2a4e | affected | git | 9884c9c02d3c90e9215db3c5128f59045d20ae91 | Unavailable | None listed |
| 33a3bb4a3345bb511f9c69c913da95d4693e2a4e | affected | git | 53f931e0146ae5bdab4cba302646827d06b3794b | Unavailable | None listed |
| 33a3bb4a3345bb511f9c69c913da95d4693e2a4e | affected | git | ecdaa3e4d91040206afe21bc8a0d1198a0971ff3 | Unavailable | None listed |
| 33a3bb4a3345bb511f9c69c913da95d4693e2a4e | affected | git | dc2ae5fbd2dadc26735092f140b246841d969a11 | Unavailable | None listed |
| 33a3bb4a3345bb511f9c69c913da95d4693e2a4e | affected | git | 85397e48afe6be83ffca5ad3f4792296bfc81d3d | Unavailable | None listed |
| 33a3bb4a3345bb511f9c69c913da95d4693e2a4e | affected | git | 6c65cf23d4c6170fcf5714c32aa64689718cb142 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.8 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.8 | Unavailable | None listed |
| 5.10.258 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.209 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.175 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.142 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.92 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.34 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.0.11 | unaffected | semver | Unavailable | 7.0.* | None listed |
| 7.1 | unaffected | original_commit_for_fix | Unavailable | * | None listed |