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ubuntucveUbuntu.comUB:CVE-2022-48792
HistoryJul 16, 2024 - 12:00 a.m.

CVE-2022-48792

2024-07-1600:00:00
ubuntu.com
ubuntu.com
2
linux kernel
vulnerability
use-after-free

AI Score

7

Confidence

Low

EPSS

0

Percentile

5.0%

In the Linux kernel, the following vulnerability has been resolved:
scsi: pm8001: Fix use-after-free for aborted SSP/STP sas_task
Currently a use-after-free may occur if a sas_task is aborted by the upper
layer before we handle the I/O completion in mpi_ssp_completion() or
mpi_sata_completion().
In this case, the following are the two steps in handling those I/O
completions:

  • Call complete() to inform the upper layer handler of completion of
    the I/O.
  • Release driver resources associated with the sas_task in
    pm8001_ccb_task_free() call.
    When complete() is called, the upper layer may free the sas_task. As such,
    we should not touch the associated sas_task afterwards, but we do so in the
    pm8001_ccb_task_free() call.
    Fix by swapping the complete() and pm8001_ccb_task_free() calls ordering.

AI Score

7

Confidence

Low

EPSS

0

Percentile

5.0%