{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-40061","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-04-16T07:20:57.158Z","datePublished":"2025-10-28T11:48:33.361Z","dateUpdated":"2026-05-11T21:41:43.484Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:41:43.484Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/rxe: Fix race in do_task() when draining\n\nWhen do_task() exhausts its iteration budget (!ret), it sets the state\nto TASK_STATE_IDLE to reschedule, without a secondary check on the\ncurrent task->state. This can overwrite the TASK_STATE_DRAINING state\nset by a concurrent call to rxe_cleanup_task() or rxe_disable_task().\n\nWhile state changes are protected by a spinlock, both rxe_cleanup_task()\nand rxe_disable_task() release the lock while waiting for the task to\nfinish draining in the while(!is_done(task)) loop. The race occurs if\ndo_task() hits its iteration limit and acquires the lock in this window.\nThe cleanup logic may then proceed while the task incorrectly\nreschedules itself, leading to a potential use-after-free.\n\nThis bug was introduced during the migration from tasklets to workqueues,\nwhere the special handling for the draining case was lost.\n\nFix this by restoring the original pre-migration behavior. If the state is\nTASK_STATE_DRAINING when iterations are exhausted, set cont to 1 to\nforce a new loop iteration. This allows the task to finish its work, so\nthat a subsequent iteration can reach the switch statement and correctly\ntransition the state to TASK_STATE_DRAINED, stopping the task as intended."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/infiniband/sw/rxe/rxe_task.c"],"versions":[{"version":"9b4b7c1f9f54120940e243251e2b1407767b3381","lessThan":"85288bcf7ffe11e7b036edf91937bc62fd384076","status":"affected","versionType":"git"},{"version":"9b4b7c1f9f54120940e243251e2b1407767b3381","lessThan":"52edccfb555142678c836c285bf5b4ec760bd043","status":"affected","versionType":"git"},{"version":"9b4b7c1f9f54120940e243251e2b1407767b3381","lessThan":"660b6959c4170637f5db2279d1f71af33a49e49b","status":"affected","versionType":"git"},{"version":"9b4b7c1f9f54120940e243251e2b1407767b3381","lessThan":"8ca7eada62fcfabf6ec1dc7468941e791c1d8729","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/infiniband/sw/rxe/rxe_task.c"],"versions":[{"version":"6.5","status":"affected"},{"version":"0","lessThan":"6.5","status":"unaffected","versionType":"semver"},{"version":"6.6.112","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.53","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.17.3","lessThanOrEqual":"6.17.*","status":"unaffected","versionType":"semver"},{"version":"6.18","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5","versionEndExcluding":"6.6.112"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5","versionEndExcluding":"6.12.53"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5","versionEndExcluding":"6.17.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5","versionEndExcluding":"6.18"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/85288bcf7ffe11e7b036edf91937bc62fd384076"},{"url":"https://git.kernel.org/stable/c/52edccfb555142678c836c285bf5b4ec760bd043"},{"url":"https://git.kernel.org/stable/c/660b6959c4170637f5db2279d1f71af33a49e49b"},{"url":"https://git.kernel.org/stable/c/8ca7eada62fcfabf6ec1dc7468941e791c1d8729"}],"title":"RDMA/rxe: Fix race in do_task() when draining","x_generator":{"engine":"bippy-1.2.0"}}}}