CVE-2026-52914Critical· 9.8▾ MidnightIn the Linux kernel, the following vulnerability has been resolved: batman-adv: fix fragment reassembly length accounting batman-adv keeps a running payload length for queued fragments and uses it to validate a fragment chain before re…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 53.9 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Oct 16.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.5%
Last analysed / modified upstream
0.5% → 0.6%
In the Linux kernel, the following vulnerability has been resolved:
batman-adv: fix fragment reassembly length accounting
batman-adv keeps a running payload length for queued fragments and uses it to validate a fragment chain before reassembly.
That accounting currently allows the accumulated fragment length to be truncated during updates. As a result, malformed fragment chains can bypass the intended validation and drive reassembly with inconsistent length state, leading to a local denial of service.
Fix the accounting by storing the accumulated length in a length-typed field and rejecting update overflows before the existing validation logic runs.
The fix was verified against the original reproducer and against valid fragment reassembly paths.
Linux >= 610bfc6bc99bc83680d190ebc69359a05fc7f605 < e4f3f6b818aa6a678bc54a2d4e0bece2303c6a64Linux >= 610bfc6bc99bc83680d190ebc69359a05fc7f605 < 37be61825b15534a16ff9cfc9546de155b6df982Linux >= 610bfc6bc99bc83680d190ebc69359a05fc7f605 < 975563c5de1123dde1ec7946bf5556d20c89d74eLinux >= 610bfc6bc99bc83680d190ebc69359a05fc7f605 < f653b040dad1af70fa5cd4fe085e4758925480c9Linux >= 610bfc6bc99bc83680d190ebc69359a05fc7f605 < e910dbf509125fe51ad68e4fa74dc8ab0a8e787aLinux >= 610bfc6bc99bc83680d190ebc69359a05fc7f605 < 3eb8bcb823391bd58997831b3c9c152a4ba8e255Linux >= 610bfc6bc99bc83680d190ebc69359a05fc7f605 < fdb2c96efb2baeb3725e9ce3ede8f1e36f5490f0Linux >= 610bfc6bc99bc83680d190ebc69359a05fc7f605 < 9cd3f16c320bfdadd4509358122368deb56a5741Linux 3.13Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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