fkie_cve-2021-47124
Vulnerability from fkie_nvd
Published
2024-03-15 21:15
Modified
2024-11-21 06:35
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: io_uring: fix link timeout refs WARNING: CPU: 0 PID: 10242 at lib/refcount.c:28 refcount_warn_saturate+0x15b/0x1a0 lib/refcount.c:28 RIP: 0010:refcount_warn_saturate+0x15b/0x1a0 lib/refcount.c:28 Call Trace: __refcount_sub_and_test include/linux/refcount.h:283 [inline] __refcount_dec_and_test include/linux/refcount.h:315 [inline] refcount_dec_and_test include/linux/refcount.h:333 [inline] io_put_req fs/io_uring.c:2140 [inline] io_queue_linked_timeout fs/io_uring.c:6300 [inline] __io_queue_sqe+0xbef/0xec0 fs/io_uring.c:6354 io_submit_sqe fs/io_uring.c:6534 [inline] io_submit_sqes+0x2bbd/0x7c50 fs/io_uring.c:6660 __do_sys_io_uring_enter fs/io_uring.c:9240 [inline] __se_sys_io_uring_enter+0x256/0x1d60 fs/io_uring.c:9182 io_link_timeout_fn() should put only one reference of the linked timeout request, however in case of racing with the master request's completion first io_req_complete() puts one and then io_put_req_deferred() is called.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0b2a990e5d2f76d020cb840c456e6ec5f0c27530
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6f5d7a45f58d3abe3a936de1441b8d6318f978ff
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/876808dba2ff7509bdd7f230c4f374a0caf4f410
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a298232ee6b9a1d5d732aa497ff8be0d45b5bd82
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ff4a96ba5c8f9b266706280ff8021d2ef3f17e86
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/0b2a990e5d2f76d020cb840c456e6ec5f0c27530
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/6f5d7a45f58d3abe3a936de1441b8d6318f978ff
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/876808dba2ff7509bdd7f230c4f374a0caf4f410
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a298232ee6b9a1d5d732aa497ff8be0d45b5bd82
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/ff4a96ba5c8f9b266706280ff8021d2ef3f17e86
Impacted products
Vendor Product Version


To clipboard 

{
  "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\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()."
    }
  ],
  "id": "CVE-2021-47124",
  "lastModified": "2024-11-21T06:35:26.677",
  "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"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://git.kernel.org/stable/c/0b2a990e5d2f76d020cb840c456e6ec5f0c27530"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://git.kernel.org/stable/c/6f5d7a45f58d3abe3a936de1441b8d6318f978ff"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://git.kernel.org/stable/c/876808dba2ff7509bdd7f230c4f374a0caf4f410"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://git.kernel.org/stable/c/a298232ee6b9a1d5d732aa497ff8be0d45b5bd82"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://git.kernel.org/stable/c/ff4a96ba5c8f9b266706280ff8021d2ef3f17e86"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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