CVE-2026-80707

Summary

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]

Affected Software

VendorProductVersion RangeStatus
LinuxLinux9d71dd0c70099914fcd063135da3c580865e924c < 348818277a3646d5b9fa60c9d20c00dc4bc86832affected
LinuxLinux9d71dd0c70099914fcd063135da3c580865e924c < f3e120a34b336079479fa10f706f0636eaa6e751affected
LinuxLinux9d71dd0c70099914fcd063135da3c580865e924c < bbfa49d1e287de44994955b44d19281be3195b44affected
LinuxLinux9d71dd0c70099914fcd063135da3c580865e924c < 194d67e92197eb820f4c2c6605d9721333b3eba0affected
LinuxLinux9d71dd0c70099914fcd063135da3c580865e924c < 038bad8e16c2e28acf31f0b527a816fb23a57269affected
LinuxLinux9d71dd0c70099914fcd063135da3c580865e924c < 8604a3b81b9d0ceaf04fee5f52e701f623a179f9affected
LinuxLinux9d71dd0c70099914fcd063135da3c580865e924c < d5b3613c7d69d8dcb4dd6704f1f463198ce9f6cfaffected
LinuxLinux9d71dd0c70099914fcd063135da3c580865e924c < eb96c58907922546e415e545fe9a14ea63b02719affected
LinuxLinux5.4affected
LinuxLinux0 < 5.4unaffected
LinuxLinux5.10.265 <= 5.10.*unaffected
LinuxLinux5.15.216 <= 5.15.*unaffected
LinuxLinux6.1.183 <= 6.1.*unaffected
LinuxLinux6.6.151 <= 6.6.*unaffected
LinuxLinux6.12.103 <= 6.12.*unaffected
LinuxLinux6.18.44 <= 6.18.*unaffected
LinuxLinux7.1.8 <= 7.1.*unaffected
LinuxLinux7.2 <= *unaffected

Weaknesses

References