CVE-2026-80707can: j1939: transport: j1939_session_fresh_new(): initialize receive buffer
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: can: j1939: transport: j1939_session_fresh_new(): initialize receive buffer Zero the allocated buffer in j1939_session_fresh_new() to ensure it contains no residual data. While there is a potential performance impact if users allocate maximum sized ETP buffers, most real-world use cases are not noticeably affected since the maximum known buffer size is typically around 65K. [mkl: add Message-ID]
- CVSS
- 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- 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
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 9d71dd0c70099914fcd063135da3c580865e924c before 348818277a3646d5b9fa60c9d20c00dc4bc86832; from 9d71dd0c70099914fcd063135da3c580865e924c before f3e120a34b336079479fa10f706f0636eaa6e751; from 9d71dd0c70099914fcd063135da3c580865e924c before bbfa49d1e287de44994955b44d19281be3195b44; from 9d71dd0c70099914fcd063135da3c580865e924c before 194d67e92197eb820f4c2c6605d9721333b3eba0; from 9d71dd0c70099914fcd063135da3c580865e924c before 038bad8e16c2e28acf31f0b527a816fb23a57269; from 9d71dd0c70099914fcd063135da3c580865e924c before 8604a3b81b9d0ceaf04fee5f52e701f623a179f9; from 9d71dd0c70099914fcd063135da3c580865e924c before d5b3613c7d69d8dcb4dd6704f1f463198ce9f6cf; from 9d71dd0c70099914fcd063135da3c580865e924c before eb96c58907922546e415e545fe9a14ea63b02719 | CNA record |
References
- https://git.kernel.org/stable/c/348818277a3646d5b9fa60c9d20c00dc4bc86832
- https://git.kernel.org/stable/c/f3e120a34b336079479fa10f706f0636eaa6e751
- https://git.kernel.org/stable/c/bbfa49d1e287de44994955b44d19281be3195b44
- https://git.kernel.org/stable/c/194d67e92197eb820f4c2c6605d9721333b3eba0
- https://git.kernel.org/stable/c/038bad8e16c2e28acf31f0b527a816fb23a57269
- https://git.kernel.org/stable/c/8604a3b81b9d0ceaf04fee5f52e701f623a179f9
- https://git.kernel.org/stable/c/d5b3613c7d69d8dcb4dd6704f1f463198ce9f6cf
- https://git.kernel.org/stable/c/eb96c58907922546e415e545fe9a14ea63b02719
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.