| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring/eventfd: ensure io_eventfd_signal() defers another RCU period\n\nio_eventfd_do_signal() is invoked from an RCU callback, but when\ndropping the reference to the io_ev_fd, it calls io_eventfd_free()\ndirectly if the refcount drops to zero. This isn't correct, as any\npotential freeing of the io_ev_fd should be deferred another RCU grace\nperiod.\n\nJust call io_eventfd_put() rather than open-code the dec-and-test and\nfree, which will correctly defer it another RCU grace period." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "io_uring/eventfd.c" |
| ], |
| "versions": [ |
| { |
| "version": "21a091b970cdbcf3e8ff829234b51be6f9192766", |
| "lessThan": "6b63308c28987c6010b1180c72a6db4df6c68033", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "21a091b970cdbcf3e8ff829234b51be6f9192766", |
| "lessThan": "8efff2aa2d95dc437ab67c5b4a9f1d3f367baa10", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "21a091b970cdbcf3e8ff829234b51be6f9192766", |
| "lessThan": "a7085c3ae43b86d4b3d1b8275e6a67f14257e3b7", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "21a091b970cdbcf3e8ff829234b51be6f9192766", |
| "lessThan": "c9a40292a44e78f71258b8522655bffaf5753bdb", |
| "status": "affected", |
| "versionType": "git" |
| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "io_uring/eventfd.c" |
| ], |
| "versions": [ |
| { |
| "version": "6.1", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "6.1", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.1.125", |
| "lessThanOrEqual": "6.1.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6.72", |
| "lessThanOrEqual": "6.6.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.12.10", |
| "lessThanOrEqual": "6.12.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.13", |
| "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": "6.1", |
| "versionEndExcluding": "6.1.125" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.1", |
| "versionEndExcluding": "6.6.72" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.1", |
| "versionEndExcluding": "6.12.10" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.1", |
| "versionEndExcluding": "6.13" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/6b63308c28987c6010b1180c72a6db4df6c68033" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/8efff2aa2d95dc437ab67c5b4a9f1d3f367baa10" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/a7085c3ae43b86d4b3d1b8275e6a67f14257e3b7" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/c9a40292a44e78f71258b8522655bffaf5753bdb" |
| }, |
| { |
| "url": "https://project-zero.issues.chromium.org/issues/388499293" |
| } |
| ], |
| "title": "io_uring/eventfd: ensure io_eventfd_signal() defers another RCU period", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2025-21655", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
