CVE-2026-80707 is a vulnerability in Linux Kernel
Published on August 28, 2026
can: j1939: transport: j1939_session_fresh_new(): initialize receive buffer
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]
Products Associated with CVE-2026-80707
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Affected Versions
Linux:- Version 9d71dd0c70099914fcd063135da3c580865e924c and below 348818277a3646d5b9fa60c9d20c00dc4bc86832 is affected.
- Version 9d71dd0c70099914fcd063135da3c580865e924c and below f3e120a34b336079479fa10f706f0636eaa6e751 is affected.
- Version 9d71dd0c70099914fcd063135da3c580865e924c and below bbfa49d1e287de44994955b44d19281be3195b44 is affected.
- Version 9d71dd0c70099914fcd063135da3c580865e924c and below 194d67e92197eb820f4c2c6605d9721333b3eba0 is affected.
- Version 9d71dd0c70099914fcd063135da3c580865e924c and below 038bad8e16c2e28acf31f0b527a816fb23a57269 is affected.
- Version 9d71dd0c70099914fcd063135da3c580865e924c and below 8604a3b81b9d0ceaf04fee5f52e701f623a179f9 is affected.
- Version 9d71dd0c70099914fcd063135da3c580865e924c and below d5b3613c7d69d8dcb4dd6704f1f463198ce9f6cf is affected.
- Version 9d71dd0c70099914fcd063135da3c580865e924c and below eb96c58907922546e415e545fe9a14ea63b02719 is affected.
- Version 5.4 is affected.
- Before 5.4 is unaffected.
- Version 5.10.265, <= 5.10.* is unaffected.
- Version 5.15.216, <= 5.15.* is unaffected.
- Version 6.1.183, <= 6.1.* is unaffected.
- Version 6.6.151, <= 6.6.* is unaffected.
- Version 6.12.103, <= 6.12.* is unaffected.
- Version 6.18.44, <= 6.18.* is unaffected.
- Version 7.1.8, <= 7.1.* is unaffected.
- Version 7.2, <= * is unaffected.