Bug 1795624 (CVE-2020-7053)
| Summary: | CVE-2020-7053 kernel: use-after-free in i915_ppgtt_close in drivers/gpu/drm/i915/i915_gem_gtt.c | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | Guilherme de Almeida Suckevicz <gsuckevi> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | acaringi, airlied, allarkin, bhu, blc, brdeoliv, bskeggs, dhoward, dvlasenk, esammons, fhrbata, hdegoede, hkrzesin, iboverma, ichavero, itamar, jarodwilson, jeremy, jforbes, jglisse, jlelli, john.j5live, jonathan, josef, jross, jshortt, jstancek, jwboyer, kernel-maint, kernel-mgr, lgoncalv, linville, lyude, masami256, matt, mchehab, mcressma, mjg59, mlangsdo, nmurray, qzhao, rt-maint, rvrbovsk, steved, williams, yozone |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: |
A use-after-free flaw was found in the Linux kernel’s GPU driver functionality when destroying GEM context. A local user could use this flaw to crash the system or potentially escalate their privileges.
|
Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2021-03-16 19:18:52 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 1795626, 1814731, 1814732, 1814733, 1814734, 1814735 | ||
| Bug Blocks: | 1795627 | ||
|
Description
Guilherme de Almeida Suckevicz
2020-01-28 13:53:28 UTC
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 1795626] This was fixed for Fedora with the 5.2.x kernel rebases. Mitigation: In case of dedicated graphic card presence and i915 GPU is not being used, you can prevent module i915 from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically. Statement: The impact of this issue is Moderate, because attack is specific for certain Intel hardware and could be triggered only by local user with write access to the device. This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2021:0856 https://access.redhat.com/errata/RHSA-2021:0856 This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2021:0857 https://access.redhat.com/errata/RHSA-2021:0857 This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2020-7053 |