{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2021-47124", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-03-04T18:12:48.839Z", "datePublished": "2024-03-15T20:14:29.605Z", "dateUpdated": "2024-11-04T11:59:52.978Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-04T11:59:52.978Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring: fix link timeout refs\n\nWARNING: CPU: 0 PID: 10242 at lib/refcount.c:28 refcount_warn_saturate+0x15b/0x1a0 lib/refcount.c:28\nRIP: 0010:refcount_warn_saturate+0x15b/0x1a0 lib/refcount.c:28\nCall Trace:\n __refcount_sub_and_test include/linux/refcount.h:283 [inline]\n __refcount_dec_and_test include/linux/refcount.h:315 [inline]\n refcount_dec_and_test include/linux/refcount.h:333 [inline]\n io_put_req fs/io_uring.c:2140 [inline]\n io_queue_linked_timeout fs/io_uring.c:6300 [inline]\n __io_queue_sqe+0xbef/0xec0 fs/io_uring.c:6354\n io_submit_sqe fs/io_uring.c:6534 [inline]\n io_submit_sqes+0x2bbd/0x7c50 fs/io_uring.c:6660\n __do_sys_io_uring_enter fs/io_uring.c:9240 [inline]\n __se_sys_io_uring_enter+0x256/0x1d60 fs/io_uring.c:9182\n\nio_link_timeout_fn() should put only one reference of the linked timeout\nrequest, however in case of racing with the master request's completion\nfirst io_req_complete() puts one and then io_put_req_deferred() is\ncalled."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/io_uring.c"], "versions": [{"version": "1c20e9040f49", "lessThan": "0b2a990e5d2f", "status": "affected", "versionType": "git"}, {"version": "1c20e9040f49", "lessThan": "6f5d7a45f58d", "status": "affected", "versionType": "git"}, {"version": "9ae1f8dd372e", "lessThan": "876808dba2ff", "status": "affected", "versionType": "git"}, {"version": "9ae1f8dd372e", "lessThan": "ff4a96ba5c8f", "status": "affected", "versionType": "git"}, {"version": "9ae1f8dd372e", "lessThan": "a298232ee6b9", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/io_uring.c"], "versions": [{"version": "5.12", "status": "affected"}, {"version": "0", "lessThan": "5.12", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.43", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.55", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.12.10", "lessThanOrEqual": "5.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.12.19", "lessThanOrEqual": "5.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.13", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/0b2a990e5d2f76d020cb840c456e6ec5f0c27530"}, {"url": "https://git.kernel.org/stable/c/6f5d7a45f58d3abe3a936de1441b8d6318f978ff"}, {"url": "https://git.kernel.org/stable/c/876808dba2ff7509bdd7f230c4f374a0caf4f410"}, {"url": "https://git.kernel.org/stable/c/ff4a96ba5c8f9b266706280ff8021d2ef3f17e86"}, {"url": "https://git.kernel.org/stable/c/a298232ee6b9a1d5d732aa497ff8be0d45b5bd82"}], "title": "io_uring: fix link timeout refs", "x_generator": {"engine": "bippy-9e1c9544281a"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-47124", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-03-18T20:27:15.011125Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-04T17:14:33.416Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:24:39.807Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/0b2a990e5d2f76d020cb840c456e6ec5f0c27530", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/6f5d7a45f58d3abe3a936de1441b8d6318f978ff", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/876808dba2ff7509bdd7f230c4f374a0caf4f410", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/ff4a96ba5c8f9b266706280ff8021d2ef3f17e86", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/a298232ee6b9a1d5d732aa497ff8be0d45b5bd82", "tags": ["x_transferred"]}]}]}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring: fix link timeout refs\n\nWARNING: CPU: 0 PID: 10242 at lib/refcount.c:28 refcount_warn_saturate+0x15b/0x1a0 lib/refcount.c:28\nRIP: 0010:refcount_warn_saturate+0x15b/0x1a0 lib/refcount.c:28\nCall Trace:\n __refcount_sub_and_test include/linux/refcount.h:283 [inline]\n __refcount_dec_and_test include/linux/refcount.h:315 [inline]\n refcount_dec_and_test include/linux/refcount.h:333 [inline]\n io_put_req fs/io_uring.c:2140 [inline]\n io_queue_linked_timeout fs/io_uring.c:6300 [inline]\n __io_queue_sqe+0xbef/0xec0 fs/io_uring.c:6354\n io_submit_sqe fs/io_uring.c:6534 [inline]\n io_submit_sqes+0x2bbd/0x7c50 fs/io_uring.c:6660\n __do_sys_io_uring_enter fs/io_uring.c:9240 [inline]\n __se_sys_io_uring_enter+0x256/0x1d60 fs/io_uring.c:9182\n\nio_link_timeout_fn() should put only one reference of the linked timeout\nrequest, however in case of racing with the master request's completion\nfirst io_req_complete() puts one and then io_put_req_deferred() is\ncalled."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: io_uring: corrige las referencias de tiempo de espera del enlace ADVERTENCIA: CPU: 0 PID: 10242 en lib/refcount.c:28 refcount_warn_saturate+0x15b/0x1a0 lib/refcount.c:28 RIP: 0010: refcount_warn_saturate+0x15b/0x1a0 lib/refcount.c:28 Seguimiento de llamadas: __refcount_sub_and_test include/linux/refcount.h:283 [en l\u00ednea] __refcount_dec_and_test include/linux/refcount.h:315 [en l\u00ednea] refcount_dec_and_test include/linux/refcount.h: 333 [en l\u00ednea] io_put_req fs/io_uring.c:2140 [en l\u00ednea] io_queue_linked_timeout fs/io_uring.c:6300 [en l\u00ednea] __io_queue_sqe+0xbef/0xec0 fs/io_uring.c:6354 io_submit_sqe fs/io_uring.c:6534 [en l\u00ednea] io_submit _sqes +0x2bbd/0x7c50 fs/io_uring.c:6660 __do_sys_io_uring_enter fs/io_uring.c:9240 [en l\u00ednea] __se_sys_io_uring_enter+0x256/0x1d60 fs/io_uring.c:9182 io_link_timeout_fn() debe poner solo una referencia de la solicitud de tiempo de espera vinculada, sin embargo en En el caso de competir con la finalizaci\u00f3n de la solicitud maestra, primero io_req_complete() coloca uno y luego se llama a io_put_req_deferred()."}], "id": "CVE-2021-47124", "lastModified": "2024-03-17T22:38:29.433", "metrics": {}, "published": "2024-03-15T21:15:07.260", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0b2a990e5d2f76d020cb840c456e6ec5f0c27530"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6f5d7a45f58d3abe3a936de1441b8d6318f978ff"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/876808dba2ff7509bdd7f230c4f374a0caf4f410"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a298232ee6b9a1d5d732aa497ff8be0d45b5bd82"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ff4a96ba5c8f9b266706280ff8021d2ef3f17e86"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: io_uring: fix link timeout refs", "id": "2269841", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2269841"}, "csaw": false, "cvss3": {"cvss3_base_score": "0.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:N", "status": "draft"}, "cwe": "CWE-20", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nio_uring: fix link timeout refs\nWARNING: CPU: 0 PID: 10242 at lib/refcount.c:28 refcount_warn_saturate+0x15b/0x1a0 lib/refcount.c:28\nRIP: 0010:refcount_warn_saturate+0x15b/0x1a0 lib/refcount.c:28\nCall Trace:\n__refcount_sub_and_test include/linux/refcount.h:283 [inline]\n__refcount_dec_and_test include/linux/refcount.h:315 [inline]\nrefcount_dec_and_test include/linux/refcount.h:333 [inline]\nio_put_req fs/io_uring.c:2140 [inline]\nio_queue_linked_timeout fs/io_uring.c:6300 [inline]\n__io_queue_sqe+0xbef/0xec0 fs/io_uring.c:6354\nio_submit_sqe fs/io_uring.c:6534 [inline]\nio_submit_sqes+0x2bbd/0x7c50 fs/io_uring.c:6660\n__do_sys_io_uring_enter fs/io_uring.c:9240 [inline]\n__se_sys_io_uring_enter+0x256/0x1d60 fs/io_uring.c:9182\nio_link_timeout_fn() should put only one reference of the linked timeout\nrequest, however in case of racing with the master request's completion\nfirst io_req_complete() puts one and then io_put_req_deferred() is\ncalled."], "name": "CVE-2021-47124", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-03-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-47124\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-47124\nhttps://lore.kernel.org/linux-cve-announce/2024031511-CVE-2021-47124-42c9@gregkh/T/#u"], "threat_severity": "Low", "upstream_fix": "kernel 5.10.43, kernel 5.10.55, kernel 5.12.10, kernel 5.12.19, kernel 5.13"}