can: softing: fw_parse(): validate firmware record spans
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.
CVE-2026-80706
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-80706
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "03fd3cf5a179da12e6bee5e9d74b648aff68dc4c",
"lessThan": "f6d9a6a9512430b395a1940d7b216394fd02d30b",
"versionType": "git"
},
{
"status": "affected",
"version": "03fd3cf5a179da12e6bee5e9d74b648aff68dc4c",
"lessThan": "84c850b08fc0d671c245144b619683129b55690a",
"versionType": "git"
},
{
"status": "affected",
"version": "03fd3cf5a179da12e6bee5e9d74b648aff68dc4c",
"lessThan": "d0eac0ea7cf493e787fd7b4a556e43ef03cb4b50",
"versionType": "git"
},
{
"status": "affected",
"version": "03fd3cf5a179da12e6bee5e9d74b648aff68dc4c",
"lessThan": "ae588e5b9cc268de1aabf30f939f0870717ca164",
"versionType": "git"
},
{
"status": "affected",
"version": "03fd3cf5a179da12e6bee5e9d74b648aff68dc4c",
"lessThan": "ad331e26fd213a19fee0de18cdacd67b7ff5b478",
"versionType": "git"
},
{
"status": "affected",
"version": "03fd3cf5a179da12e6bee5e9d74b648aff68dc4c",
"lessThan": "2ee477e541a6d5e434d6a4041c6b677ab42e1d82",
"versionType": "git"
},
{
"status": "affected",
"version": "03fd3cf5a179da12e6bee5e9d74b648aff68dc4c",
"lessThan": "808ed899dcf8bdef66894fda5eb7ee4bb0eb8dc1",
"versionType": "git"
},
{
"status": "affected",
"version": "03fd3cf5a179da12e6bee5e9d74b648aff68dc4c",
"lessThan": "856d6cb04e5407523566b075841dcd6423757d1c",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/can/softing/softing_fw.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.38"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.38",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.265",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.216",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.183",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.151",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.103",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.44",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.1.8",
"versionType": "semver",
"lessThanOrEqual": "7.1.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/can/softing/softing_fw.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-80706
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #34361 · Revision 1
- Added to Heist Feed
- Publisher date