Answer in brief
CVE-2025-40061 records a High severity (CVSS 7.8) vulnerability in RDMA/rxe: Fix race in do_task() when draining. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=9b4b7c1f9f54120940e243251e2b1407767b3381 <85288bcf7ffe11e7b036edf91937bc62fd384076 || >=9b4b7c1f9f54120940e243251e2b1407767b3381 <52edccfb555142678c836c285bf5b4ec760bd043 || >=9b4b7c1f9f54120940e243251e2b1407767b3381 <660b6959c4170637f5db2279d1f71af33a49e49b || >=9b4b7c1f9f54120940e243251e2b1407767b3381 <8ca7eada62fcfabf6ec1dc7468941e791c1d8729 | 85288bcf7ffe11e7b036edf91937bc62fd384076, 52edccfb555142678c836c285bf5b4ec760bd043, 660b6959c4170637f5db2279d1f71af33a49e49b, 8ca7eada62fcfabf6ec1dc7468941e791c1d8729 |
| Linux/Linuxgeneric | 6.5 | Not reported |
Published upstream
Oct 28, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix race in do_task() when draining When do_task() exhausts its iteration budget (!ret), it sets the state to TASK_STATE_IDLE to reschedule, without a secondary check on the current task->state. This can overwrite the TASK_STATE_DRAINING state set by a concurrent call to rxe_cleanup_task() or rxe_disable_task(). While state changes are protected by a spinlock, both rxe_cleanup_task() and rxe_disable_task() release the lock while waiting for the task to finish draining in the while(!is_done(task)) loop. The race occurs if do_task() hits its iteration limit and acquires the lock in this window. The cleanup logic may then proceed while the task incorrectly reschedules itself, leading to a potential use-after-free. This bug was introduced during the migration from tasklets to workqueues, where the special handling for the draining case was lost. Fix this by restoring the original pre-migration behavior. If the state is TASK_STATE_DRAINING when iterations are exhausted, set cont to 1 to force a new loop iteration. This allows the task to finish its work, so that a subsequent iteration can reach the switch statement and correctly transition the state to TASK_STATE_DRAINED, stopping the task as intended.
Quoted source text, attributed separately from HOL analysis.