| Summary: |
VUL-0: CVE-2024-27079: kernel: iommu/vt-d: Fix NULL domain on device release |
| Product: |
[Novell Products] SUSE Security Incidents
|
Reporter: |
SMASH SMASH <smash_bz> |
| Component: |
Incidents | Assignee: |
Karasulli <vasant.karasulli> |
| Status: |
NEW
---
|
QA Contact: |
Security Team bot <security-team> |
| Severity: |
Normal
|
|
|
| Priority: |
P3 - Medium
|
CC: |
carlos.lopez, vasant.karasulli
|
| Version: |
unspecified | |
|
| Target Milestone: |
--- | |
|
| Hardware: |
Other | |
|
| OS: |
Other | |
|
| URL: |
https://smash.suse.de/issue/403870/
|
| Whiteboard: |
CVSSv3.1:SUSE:CVE-2024-27079:5.5:(AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H) |
|
Found By:
|
Security Response Team
|
Services Priority:
|
|
|---|
|
Business Priority:
|
|
Blocker:
|
---
|
|---|
|
Marketing QA Status:
|
---
|
IT Deployment:
|
---
|
|---|
In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fix NULL domain on device release In the kdump kernel, the IOMMU operates in deferred_attach mode. In this mode, info->domain may not yet be assigned by the time the release_device function is called. It leads to the following crash in the crash kernel: BUG: kernel NULL pointer dereference, address: 000000000000003c ... RIP: 0010:do_raw_spin_lock+0xa/0xa0 ... _raw_spin_lock_irqsave+0x1b/0x30 intel_iommu_release_device+0x96/0x170 iommu_deinit_device+0x39/0xf0 __iommu_group_remove_device+0xa0/0xd0 iommu_bus_notifier+0x55/0xb0 notifier_call_chain+0x5a/0xd0 blocking_notifier_call_chain+0x41/0x60 bus_notify+0x34/0x50 device_del+0x269/0x3d0 pci_remove_bus_device+0x77/0x100 p2sb_bar+0xae/0x1d0 ... i801_probe+0x423/0x740 Use the release_domain mechanism to fix it. The scalable mode context entry which is not part of release domain should be cleared in release_device(). References: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-27079 https://www.cve.org/CVERecord?id=CVE-2024-27079 https://git.kernel.org/stable/c/333fe86968482ca701c609af590003bcea450e8f https://git.kernel.org/stable/c/81e921fd321614c2ad8ac333b041aae1da7a1c6d https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-27079.mbox https://bugzilla.redhat.com/show_bug.cgi?id=2278492