batman-adv: fix integer overflow on buff_pos

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Summary

CVECVE-2026-46198
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-28 10:16:35 UTC
Updated2026-05-30 11:17:26 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: batman-adv: fix integer overflow on buff_pos Fixing an integer overflow present in batadv_iv_ogm_send_to_if. The size check is done using the int type in batadv_iv_ogm_aggr_packet whereas the buff_pos variable uses the s16 type. This could lead to an out-of-bound read.

Risk And Classification

Primary CVSS: v3.1 8.8 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.000180000 probability, percentile 0.051640000 (date 2026-05-29)

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary8.8HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED8.8HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected c6c8fea29769d998d94fcec9b9f14d4b52b349d3 f61499359fa529f0d45a53bf7c573a49eb6322e6 git Not specified
CNA Linux Linux affected c6c8fea29769d998d94fcec9b9f14d4b52b349d3 974542d1efc48b7e9fe16184e647615cba39969b git Not specified
CNA Linux Linux affected c6c8fea29769d998d94fcec9b9f14d4b52b349d3 bf872db54f91ffe70104b98c20068b2d5910e018 git Not specified
CNA Linux Linux affected c6c8fea29769d998d94fcec9b9f14d4b52b349d3 b252797bfced986d6d92ec2f4cfcca842ce8aa78 git Not specified
CNA Linux Linux affected c6c8fea29769d998d94fcec9b9f14d4b52b349d3 0799e5943611006b346b8813c7daf7dd5aa26bfd git Not specified
CNA Linux Linux affected 2.6.38 Not specified
CNA Linux Linux unaffected 2.6.38 semver Not specified
CNA Linux Linux unaffected 6.6.140 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.90 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.32 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.9 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1-rc4 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/f61499359fa529f0d45a53bf7c573a49eb6322e6 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/b252797bfced986d6d92ec2f4cfcca842ce8aa78 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/974542d1efc48b7e9fe16184e647615cba39969b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/0799e5943611006b346b8813c7daf7dd5aa26bfd 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/bf872db54f91ffe70104b98c20068b2d5910e018 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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