Detections
Analytics
CVE-2026-80706
high
Description
In the Linux kernel, the following vulnerability has been resolved: can: softing: fw_parse(): validate firmware record spans fw_parse() reads a fixed record header, a firmware-provided payload, and a trailing checksum without knowing the end of the firmware blob. A truncated record can therefore make those reads exceed the blob. The same record also supplies addresses and lengths for writes into DPRAM. The generic loader uses wrap-prone mixed signed arithmetic for its bounds check, while the application loader does not bound the staging copy at all. Pass the firmware end to the parser and validate the full source record. Use a signed wide offset for generic DPRAM records and validate the application staging span against the mapped DPRAM before copying.
References
https://git.kernel.org/stable/c/f6d9a6a9512430b395a1940d7b216394fd02d30b
https://git.kernel.org/stable/c/d0eac0ea7cf493e787fd7b4a556e43ef03cb4b50
https://git.kernel.org/stable/c/ae588e5b9cc268de1aabf30f939f0870717ca164
https://git.kernel.org/stable/c/ad331e26fd213a19fee0de18cdacd67b7ff5b478
https://git.kernel.org/stable/c/856d6cb04e5407523566b075841dcd6423757d1c
https://git.kernel.org/stable/c/84c850b08fc0d671c245144b619683129b55690a
https://git.kernel.org/stable/c/808ed899dcf8bdef66894fda5eb7ee4bb0eb8dc1
https://git.kernel.org/stable/c/2ee477e541a6d5e434d6a4041c6b677ab42e1d82