USB: dwc2: shut down wakeup timer before freeing HCD state
In the Linux kernel, the following vulnerability has been resolved: USB: dwc2: shut down wakeup timer before freeing HCD state dwc2_wakeup_detected() accesses the DWC2 host state and can rearm the wakeup timer. dwc2_hcd_free() currently deletes the timer only after freeing host-owned state, and timer_delete() does not synchronize a callback or prevent it from being queued again. Stop and shut down the timer in dwc2_hcd_release(), before the HCD resources are freed. This covers both the HCD initialization error path and normal HCD removal.
CVE-2026-98762
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-2026-98762
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": "7359d482eb4d3967cc8be354405ae6be6eaf732c",
"lessThan": "82cc242da6d621752718929e6a2fa6f9554ebffe",
"versionType": "git"
},
{
"status": "affected",
"version": "7359d482eb4d3967cc8be354405ae6be6eaf732c",
"lessThan": "441be312fce927443eae2821f502344d953c38bb",
"versionType": "git"
},
{
"status": "affected",
"version": "7359d482eb4d3967cc8be354405ae6be6eaf732c",
"lessThan": "4333174ea52c863a50bb3e0a4726bf9f7cdf7524",
"versionType": "git"
},
{
"status": "affected",
"version": "7359d482eb4d3967cc8be354405ae6be6eaf732c",
"lessThan": "79ba37dd38a321cb32a79332a3e3c68dd334dca9",
"versionType": "git"
},
{
"status": "affected",
"version": "7359d482eb4d3967cc8be354405ae6be6eaf732c",
"lessThan": "fd772af9512cdecb83de34a461801533828e77fd",
"versionType": "git"
}
],
"programFiles": [
"drivers/usb/dwc2/hcd.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.10"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.10",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.113",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.56",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.10",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/usb/dwc2/hcd.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98762
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #48957 · Revision 1
- Added to Heist Feed
- Publisher date