scsi: ufs: core: Flush exception handling work when RPM level is zero
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: core: Flush exception handling work when RPM level is zero Ensure that the exception event handling work is explicitly flushed during suspend when the runtime power management level is set to UFS_PM_LVL_0. When the RPM level is zero, the device power mode and link state both remain active. Previously, the UFS core driver bypassed flushing exception event handling jobs in this configuration. This created a race condition where the driver could attempt to access the host controller to handle an exception after the system had already entered a deep power-down state, resulting in a system crash. Explicitly flush this work and disable auto BKOPs before the suspend callback proceeds. This guarantees that pending exception tasks complete and prevents illegal hardware access during the power-down sequence.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
3.18
References 7
git.kernel.org
- stable/c/d5c3a1a13f97355c397f9439d79cb04b182958a3
- stable/c/5d186731bc335cc049d4e57ab9f563cfab95593e
- stable/c/aa8d68d97c7f0ef966e51afc17fdbdc372700edf
- stable/c/aac2fee7513dd25042a616f86a1469b4858d2c5c
- stable/c/78d8e2d6352e8317686ee3a44811ac14c415a57d
- stable/c/ab71c146c135f9af1614ef0fc29a0a3b84f1a373
- stable/c/f8ef441811ec413717f188f63d99182f30f0f08e