DEBIAN-CVE-2024-56621
- Source
- https://security-tracker.debian.org/tracker/CVE-2024-56621
- Import Source
- https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-56621.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2024-56621
- Upstream
- Published
- 2024-12-27T15:15:21.637Z
- Modified
- 2026-04-28T20:30:42.521110Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: core: Cancel RTC work during ufshcd_remove() Currently, RTC work is only cancelled during _ufshcdwlsuspend(). When ufshcd is removed in ufshcdremove(), RTC work is not cancelled. Due to this, any further trigger of the RTC work after ufshcdremove() would result in a NULL pointer dereference as below: Unable to handle kernel NULL pointer dereference at virtual address 00000000000002a4 Workqueue: events ufshcdrtcwork Call trace: rawspinlockirqsave+0x34/0x8c pmruntimegetifactive+0x24/0xb4 ufshcdrtcwork+0x124/0x19c processscheduledworks+0x18c/0x2d8 workerthread+0x144/0x280 kthread+0x11c/0x128 retfromfork+0x10/0x20 Since RTC work accesses the ufshcd internal structures, it should be cancelled when ufshcd is removed. So do that in ufshcdremove(), as per the order in ufshcdinit().
- References
Affected packages
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:14 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source