Vulnerability Details : CVE-2021-47188
In the Linux kernel, the following vulnerability has been resolved:
scsi: ufs: core: Improve SCSI abort handling
The following has been observed on a test setup:
WARNING: CPU: 4 PID: 250 at drivers/scsi/ufs/ufshcd.c:2737 ufshcd_queuecommand+0x468/0x65c
Call trace:
ufshcd_queuecommand+0x468/0x65c
scsi_send_eh_cmnd+0x224/0x6a0
scsi_eh_test_devices+0x248/0x418
scsi_eh_ready_devs+0xc34/0xe58
scsi_error_handler+0x204/0x80c
kthread+0x150/0x1b4
ret_from_fork+0x10/0x30
That warning is triggered by the following statement:
WARN_ON(lrbp->cmd);
Fix this warning by clearing lrbp->cmd from the abort handler.
Products affected by CVE-2021-47188
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Exploit prediction scoring system (EPSS) score for CVE-2021-47188
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 11 %
Percentile, the proportion of vulnerabilities that are scored at or less
References for CVE-2021-47188
-
https://git.kernel.org/stable/c/3ff1f6b6ba6f97f50862aa50e79959cc8ddc2566
scsi: ufs: core: Improve SCSI abort handling - kernel/git/stable/linux.git - Linux kernel stable tree
-
https://git.kernel.org/stable/c/c36baca06efa833adaefba61f45fefdc49b6d070
scsi: ufs: core: Improve SCSI abort handling - kernel/git/stable/linux.git - Linux kernel stable tree
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