scsi: core: Run queues for all non-SDEV_DEL devices from scsi_run_host_queues
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Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 7.5epss 0.2%
probabilidade de exploração
0.2%top 94% das CVEs
exploração observada
nãonenhuma fonte reporta
In the Linux kernel, the following vulnerability has been resolved:
scsi: core: Run queues for all non-SDEV_DEL devices from scsi_run_host_queues
While a SCSI host is in a recovery state, scsi_mq_requeue_cmd() will not
set the requeue list for a requeued command to be kicked in the future.
The expectation is a call to scsi_run_host_queues() will kick all SCSI
devices once the recovery state is cleared.
However, scsi_run_host_queues() uses shost_for_each_device() which uses
scsi_device_get() and so will ignore devices in a partially removed
state like SDEV_CANCEL. But these devices may also have requeued
requests, leaving their requests stuck from not being kicked and causing
the removal process of the device to hang.
scsi_run_host_queues() needs to run against more devices than the macro
shost_for_each_device() allows. Instead of using the too limiting
scsi_device_get() state checks, only ignore devices in SDEV_DEL state or
when unable to acquire a reference. Attempt to run the queues for all
other devices when scsi_run_host_queues() is called.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Produtos afetados
Linux · LinuxReferências
https://git.kernel.org/stable/c/15fb19af49f2073ed77fad16aaabc648b0ca6800https://git.kernel.org/stable/c/475f2b37a78f4c698967a7f14f325f04e24c9175https://git.kernel.org/stable/c/7205b58702273baf21d6ba7992e6ba15852325f7https://git.kernel.org/stable/c/c740e13e7fe32d8e4d9a1699f65b8daf6709895ahttps://git.kernel.org/stable/c/d4dddfecdbb5467bef158d4e1486459808357fef