CVE-2024-26873

/// Technical description

In the Linux kernel, the following vulnerability has been resolved:

scsi: hisi_sas: Fix a deadlock issue related to automatic dump

If we issue a disabling PHY command, the device attached with it will go

offline, if a 2 bit ECC error occurs at the same time, a hung task may be

found:

[ 4613.652388] INFO: task kworker/u256:0:165233 blocked for more than 120 seconds.

[ 4613.666297] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.

[ 4613.674809] task:kworker/u256:0 state:D stack: 0 pid:165233 ppid: 2 flags:0x00000208

[ 4613.683959] Workqueue: 0000:74:02.0_disco_q sas_revalidate_domain [libsas]

[ 4613.691518] Call trace:

[ 4613.694678] __switch_to+0xf8/0x17c

[ 4613.698872] __schedule+0x660/0xee0

[ 4613.703063] schedule+0xac/0x240

[ 4613.706994] schedule_timeout+0x500/0x610

[ 4613.711705] __down+0x128/0x36c

[ 4613.715548] down+0x240/0x2d0

[ 4613.719221] hisi_sas_internal_abort_timeout+0x1bc/0x260 [hisi_sas_main]

[ 4613.726618] sas_execute_internal

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References