cve-2024-50044
Vulnerability from cvelistv5
Published
2024-10-21 19:39
Modified
2024-12-19 09:31
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: RFCOMM: FIX possible deadlock in rfcomm_sk_state_change rfcomm_sk_state_change attempts to use sock_lock so it must never be called with it locked but rfcomm_sock_ioctl always attempt to lock it causing the following trace: ====================================================== WARNING: possible circular locking dependency detected 6.8.0-syzkaller-08951-gfe46a7dd189e #0 Not tainted ------------------------------------------------------ syz-executor386/5093 is trying to acquire lock: ffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1671 [inline] ffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sk_state_change+0x5b/0x310 net/bluetooth/rfcomm/sock.c:73 but task is already holding lock: ffff88807badfd28 (&d->lock){+.+.}-{3:3}, at: __rfcomm_dlc_close+0x226/0x6a0 net/bluetooth/rfcomm/core.c:491
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/08d1914293dae38350b8088980e59fbc699a72fePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/38b2d5a57d125e1c17661b8308c0240c4a43b534Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/496b2ab0fd10f205e08909a125485fdc98843dbePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4cb9807c9b53bf1e5560420d26f319f528b50268Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/869c6ee62ab8f01bf2419e45326642be5c9b670a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b77b3fb12fd483cae7c28648903b1d8a6b275f01
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ced98072d3511b232ae1d3347945f35f30c0e303Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ef44274dae9b0a90d1a97ce8b242a3b8243a7745Patch
Impacted products
Vendor Product Version
Linux Linux Version: 3241ad820dbb172021e0268b5611031991431626
Version: 3241ad820dbb172021e0268b5611031991431626
Version: 3241ad820dbb172021e0268b5611031991431626
Version: 3241ad820dbb172021e0268b5611031991431626
Version: 3241ad820dbb172021e0268b5611031991431626
Version: 3241ad820dbb172021e0268b5611031991431626
Version: 3241ad820dbb172021e0268b5611031991431626
Version: 3241ad820dbb172021e0268b5611031991431626
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   Linux Linux Version: 2.6.27
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               value: "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: RFCOMM: FIX possible deadlock in rfcomm_sk_state_change\n\nrfcomm_sk_state_change attempts to use sock_lock so it must never be\ncalled with it locked but rfcomm_sock_ioctl always attempt to lock it\ncausing the following trace:\n\n======================================================\nWARNING: possible circular locking dependency detected\n6.8.0-syzkaller-08951-gfe46a7dd189e #0 Not tainted\n------------------------------------------------------\nsyz-executor386/5093 is trying to acquire lock:\nffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1671 [inline]\nffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sk_state_change+0x5b/0x310 net/bluetooth/rfcomm/sock.c:73\n\nbut task is already holding lock:\nffff88807badfd28 (&d->lock){+.+.}-{3:3}, at: __rfcomm_dlc_close+0x226/0x6a0 net/bluetooth/rfcomm/core.c:491",
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      assignerShortName: "Linux",
      cveId: "CVE-2024-50044",
      datePublished: "2024-10-21T19:39:42.430Z",
      dateReserved: "2024-10-21T12:17:06.071Z",
      dateUpdated: "2024-12-19T09:31:59.938Z",
      state: "PUBLISHED",
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[inline]\\nffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sk_state_change+0x5b/0x310 net/bluetooth/rfcomm/sock.c:73\\n\\nbut task is already holding lock:\\nffff88807badfd28 (&d->lock){+.+.}-{3:3}, at: __rfcomm_dlc_close+0x226/0x6a0 net/bluetooth/rfcomm/core.c:491\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: Bluetooth: RFCOMM: CORREGIR posible bloqueo en rfcomm_sk_state_change rfcomm_sk_state_change intenta usar sock_lock, por lo que nunca se debe llamar con él bloqueado, pero rfcomm_sock_ioctl siempre intenta bloquearlo, lo que provoca el siguiente rastro: ======================================================= ADVERTENCIA: se ha detectado una posible dependencia de bloqueo circular 6.8.0-syzkaller-08951-gfe46a7dd189e #0 No contaminado ------------------------------------------------------ syz-executor386/5093 está intentando adquirir el bloqueo: ffff88807c396258 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\"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nBluetooth: RFCOMM: FIX possible deadlock in rfcomm_sk_state_change\\n\\nrfcomm_sk_state_change attempts to use sock_lock so it must never be\\ncalled with it locked but rfcomm_sock_ioctl always attempt to lock it\\ncausing the following trace:\\n\\n======================================================\\nWARNING: possible circular locking dependency detected\\n6.8.0-syzkaller-08951-gfe46a7dd189e #0 Not tainted\\n------------------------------------------------------\\nsyz-executor386/5093 is trying to acquire lock:\\nffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1671 [inline]\\nffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sk_state_change+0x5b/0x310 net/bluetooth/rfcomm/sock.c:73\\n\\nbut task is already holding lock:\\nffff88807badfd28 (&d->lock){+.+.}-{3:3}, at: __rfcomm_dlc_close+0x226/0x6a0 net/bluetooth/rfcomm/core.c:491\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-11-08T15:58:05.945Z\"}}}",
         cveMetadata: "{\"cveId\": \"CVE-2024-50044\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-11-08T15:58:05.945Z\", \"dateReserved\": \"2024-10-21T12:17:06.071Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-10-21T19:39:42.430Z\", \"assignerShortName\": \"Linux\"}",
         dataType: "CVE_RECORD",
         dataVersion: "5.1",
      },
   },
}


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