CVE-2026-45865
- Source
- https://cve.org/CVERecord?id=CVE-2026-45865
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-45865.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-45865
- Downstream
- Published
- 2026-05-27T12:15:45.082Z
- Modified
- 2026-06-27T11:55:25.096150290Z
- Summary
- mctp i2c: initialise event handler read bytes
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
mctp i2c: initialise event handler read bytes
Set a 0xff value for i2c reads of an mctp-i2c device. Otherwise reads will return "val" from the i2c bus driver. For i2c-aspeed and i2c-npcm7xx that is a stack uninitialised u8.
Tested with "i2ctransfer -y 1 r10@0x34" where 0x34 is a mctp-i2c instance, now it returns all 0xff.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45865.json" }- References
-
- https://git.kernel.org/stable/c/11f83253244060b5de5eac787f61ae3f3e559d01
- https://git.kernel.org/stable/c/1eeedb310229bfee9dd4d992e5bba33fe1378a8f
- https://git.kernel.org/stable/c/2a14e91b6d76639dac70ea170f4384c1ee3cb48d
- https://git.kernel.org/stable/c/6ff2ebfef75fbc57d937d8fbe738b967edf2d331
- https://git.kernel.org/stable/c/93e01e837e105299f1c259ef71f6e1ec4fe806e3
- https://git.kernel.org/stable/c/fa9861e5c8af7651dddfa8d490aaada17ae33b6c
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45865.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-45865
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedf5b8abf9fc3dacd7529d363e26fe8230935d65f8Fixed93e01e837e105299f1c259ef71f6e1ec4fe806e3Fixed11f83253244060b5de5eac787f61ae3f3e559d01Fixedfa9861e5c8af7651dddfa8d490aaada17ae33b6cFixed6ff2ebfef75fbc57d937d8fbe738b967edf2d331Fixed1eeedb310229bfee9dd4d992e5bba33fe1378a8fFixed2a14e91b6d76639dac70ea170f4384c1ee3cb48d