cve-2021-47124
Vulnerability from cvelistv5
Published
2024-03-15 20:14
Modified
2024-11-04 11:59
Severity ?
EPSS score ?
Summary
io_uring: fix link timeout refs
References
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[ "x_transferred" ], "url": "https://git.kernel.org/stable/c/ff4a96ba5c8f9b266706280ff8021d2ef3f17e86" }, { "tags": [ "x_transferred" ], "url": "https://git.kernel.org/stable/c/a298232ee6b9a1d5d732aa497ff8be0d45b5bd82" } ], "title": "CVE Program Container" } ], "cna": { "affected": [ { "defaultStatus": "unaffected", "product": "Linux", "programFiles": [ "fs/io_uring.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "lessThan": "0b2a990e5d2f", "status": "affected", "version": "1c20e9040f49", "versionType": "git" }, { "lessThan": "6f5d7a45f58d", "status": "affected", "version": "1c20e9040f49", "versionType": "git" }, { "lessThan": "876808dba2ff", "status": "affected", "version": "9ae1f8dd372e", "versionType": "git" }, { "lessThan": "ff4a96ba5c8f", "status": "affected", "version": "9ae1f8dd372e", "versionType": "git" }, { "lessThan": "a298232ee6b9", "status": "affected", "version": "9ae1f8dd372e", "versionType": "git" } ] }, { "defaultStatus": "affected", "product": "Linux", "programFiles": [ "fs/io_uring.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "status": "affected", "version": "5.12" }, { "lessThan": "5.12", "status": "unaffected", "version": "0", "versionType": "semver" }, { "lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.43", "versionType": "semver" }, { "lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.55", "versionType": "semver" }, { "lessThanOrEqual": "5.12.*", "status": "unaffected", "version": "5.12.10", "versionType": "semver" }, { "lessThanOrEqual": "5.12.*", "status": "unaffected", "version": "5.12.19", "versionType": "semver" }, { "lessThanOrEqual": "*", "status": "unaffected", "version": "5.13", "versionType": "original_commit_for_fix" } ] } ], "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\u0027s completion\nfirst io_req_complete() puts one and then io_put_req_deferred() is\ncalled." } ], "providerMetadata": { "dateUpdated": "2024-11-04T11:59:52.978Z", "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux" }, "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" } } }, "cveMetadata": { "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "assignerShortName": "Linux", "cveId": "CVE-2021-47124", "datePublished": "2024-03-15T20:14:29.605Z", "dateReserved": "2024-03-04T18:12:48.839Z", "dateUpdated": "2024-11-04T11:59:52.978Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2021-47124\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-03-15T21:15:07.260\",\"lastModified\":\"2024-03-17T22:38:29.433\",\"vulnStatus\":\"Awaiting Analysis\",\"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\u0027s 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().\"}],\"metrics\":{},\"references\":[{\"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\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}" } }
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.