In the Linux kernel, the following vulnerability has been resolved: NFSD: fix hang in nfsd4_shutdown_callback If nfs4_client is in courtesy state then there is no point to send the callback. This causes nfsd4_shutdown_callback to hang since cl_cb_inflight is not 0. This hang lasts about 15 minutes until TCP notifies NFSD that the connection was dropped. This patch modifies nfsd4_run_cb_work to skip the RPC call if nfs4_client is in courtesy state.
En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: NFSD: se corrige el bloqueo en nfsd4_shutdown_callback Si nfs4_client está en estado de cortesía, no tiene sentido enviar la devolución de llamada. Esto hace que nfsd4_shutdown_callback se bloquee ya que cl_cb_inflight no es 0. Este bloqueo dura unos 15 minutos hasta que TCP notifica a NFSD que se interrumpió la conexión. Este parche modifica nfsd4_run_cb_work para omitir la llamada RPC si nfs4_client está en estado de cortesía.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
| Attack Vector | LOCAL |
|---|---|
| Attack Complexity | LOW |
| Privileges Required | LOW |
| User Interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality Impact | NONE |
| Integrity Impact | NONE |
| Availability Impact | HIGH |
| Source | Type | Description |
|---|---|---|
| [email protected] | Primary |
en
NVD-CWE-noinfo
|
| Vendor | Product | Version | Update | Type |
|---|---|---|---|---|
| linux | linux_kernel | * | <built-in method update of dict object at 0x7d23a52f78c0> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7d24246e6cc0> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7d2424624600> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7d2424627e40> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7d23a52f5c80> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7d23a52f5f80> | Operating System |
| linux | linux_kernel | 6.14 | <built-in method update of dict object at 0x7d24246e6f40> | Operating System |
| linux | linux_kernel | 6.14 | <built-in method update of dict object at 0x7d24246e5580> | Operating System |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:* |