UBUNTU-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.
02 / AFFECTED SOFTWARE
Affected packages
50 explicit affected versions
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26 explicit affected versions
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120 explicit affected versions
99 explicit affected versions
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43 explicit affected versions
51 explicit affected versions
123 explicit affected versions
143 explicit affected versions
10 explicit affected versions
8 explicit affected versions
14 explicit affected versions
86 explicit affected versions
4 explicit affected versions
75 explicit affected versions
1 explicit affected versions
46 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/3ff1f6b6ba6f97f50862aa50e79959cc8ddc2566
- https://git.kernel.org/stable/c/3ff1f6b6ba6f97f50862aa50e79959cc8ddc2566
- https://git.kernel.org/stable/c/c36baca06efa833adaefba61f45fefdc49b6d070
- https://ubuntu.com/security/CVE-2021-47188
- https://ubuntu.com/security/notices/USN-7022-1
- https://ubuntu.com/security/notices/USN-7022-2
- https://ubuntu.com/security/notices/USN-7022-3
- https://ubuntu.com/security/notices/USN-7028-1
- https://ubuntu.com/security/notices/USN-7028-2
- https://ubuntu.com/security/notices/USN-7039-1
- https://ubuntu.com/security/notices/USN-7119-1
- https://www.cve.org/CVERecord?id=CVE-2021-47188