USB: c67x00: fix use-after-free in c67x00_add_iso_urb()
In the Linux kernel, the following vulnerability has been resolved: USB: c67x00: fix use-after-free in c67x00_add_iso_urb() When TD creation fails for the last packet of an isochronous URB, c67x00_add_iso_urb() gives the URB back before updating the endpoint scheduling state. c67x00_giveback_urb() frees the URB private data, and the completion callback may release the final URB reference. The following accesses to urbp->ep_data, urb->interval, and urbp->cnt can therefore use freed memory. Update next_frame and cnt before giving back the failed final packet, making the giveback the last operation that uses the URB and its private data.
CVE-2026-80826
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-2026-80826
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": "e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d",
"lessThan": "e4039e9bebb528dd9cd7ac72aeaec529c26c355a",
"versionType": "git"
},
{
"status": "affected",
"version": "e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d",
"lessThan": "ade18b4ce78a16558f4f435aece80082f6f7b64c",
"versionType": "git"
},
{
"status": "affected",
"version": "e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d",
"lessThan": "bb572801290e25ec1c4753d14af35777303f5d6b",
"versionType": "git"
},
{
"status": "affected",
"version": "e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d",
"lessThan": "62cd519ab74cac499036cd88c11692f8f0d53e14",
"versionType": "git"
},
{
"status": "affected",
"version": "e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d",
"lessThan": "ff172092cba7ec990ecc7b610ce703e19570b8f0",
"versionType": "git"
},
{
"status": "affected",
"version": "e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d",
"lessThan": "b4cb8081cf80f82e48fbe9c021a8f6d0fa2ed421",
"versionType": "git"
},
{
"status": "affected",
"version": "e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d",
"lessThan": "7983daa159981fac125db2457437723f38ea1472",
"versionType": "git"
},
{
"status": "affected",
"version": "e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d",
"lessThan": "f24dcc61bd0ecf7639fac5bf700450b398d793a7",
"versionType": "git"
},
{
"status": "affected",
"version": "e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d",
"lessThan": "b1e24de475bf2d66fffc9103f3444b783527d55a",
"versionType": "git"
}
],
"programFiles": [
"drivers/usb/c67x00/c67x00-sched.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.26"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.26",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.269",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.220",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.187",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.156",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.108",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.49",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.1.13",
"versionType": "semver",
"lessThanOrEqual": "7.1.*"
},
{
"status": "unaffected",
"version": "7.2.3",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/usb/c67x00/c67x00-sched.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-80826
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #34842 · Revision 1
- Added to Heist Feed
- Publisher date