rust_binder: reschedule node refcount update on thread exit
In the Linux kernel, the following vulnerability has been resolved: rust_binder: reschedule node refcount update on thread exit When a thread exits via BINDER_THREAD_EXIT, its pending work items are cancelled. If a thread exits while holding a pending node refcount increment (e.g. pushed as deferred work to that thread), the refcount increment was previously dropped because Node::cancel() and NodeWrapper::cancel() were no-ops. Dropping the refcount update leaves the node's delivery state and count state desynchronized, and userspace will not receive the notification, which can cause the node to never be freed from the process's nodes tree when all external references are dropped. Fix this by implementing DeliverToRead::cancel() for Node and NodeWrapper to move the pending refcount update to the process's work queue on thread exit so another thread can deliver it to userspace.
CVE-2026-99075
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-2026-99075
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": "eafedbc7c050c44744fbdf80bdf3315e860b7513",
"lessThan": "71cbad138969edecef01b28dff87d91b56db538d",
"versionType": "git"
},
{
"status": "affected",
"version": "eafedbc7c050c44744fbdf80bdf3315e860b7513",
"lessThan": "fb0f8dfc5a030ed3d60a1d03acdc99c90ee99fc1",
"versionType": "git"
},
{
"status": "affected",
"version": "eafedbc7c050c44744fbdf80bdf3315e860b7513",
"lessThan": "2a74ccd1bcc170e66525f34e9de8652b57e2cf3d",
"versionType": "git"
}
],
"programFiles": [
"drivers/android/binder/node.rs",
"drivers/android/binder/node/wrapper.rs"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.18"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.18",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.18.57",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.11",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/android/binder/node.rs",
"drivers/android/binder/node/wrapper.rs"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-99075
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #52900 · Revision 1
- Added to Heist Feed
- Publisher date