| Summary: | CVE-2019-16921 kernel: information disclosure in hns_roce_alloc_ucontext in drivers/infiniband/hw/hns/hns_roce_main.c | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | Dhananjay Arunesh <darunesh> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED NOTABUG | QA Contact: | |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | unspecified | CC: | acaringi, airlied, 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, labbott, lgoncalv, linville, masami256, matt, mchehab, mcressma, mjg59, mlangsdo, nmurray, plougher, 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: |
An information disclosure flaw was found in the Linux kernel. The Infiniband driver does not initialize the resp data structure which allows an attacker to obtain sensitive information from kernel stack memory. The highest threat from this vulnerability is to data confidentiality.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2020-01-17 08:09:30 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Bug Depends On: | 1762322 | ||
| Bug Blocks: | 1762323 | ||
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Description
Dhananjay Arunesh
2019-10-16 14:18:14 UTC
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 1762322] This was fixed upstream in the 4.17 kernel, and has not impacted any of the currently supported versions of Fedora. Red Hat Enterprise Linux 8 and 9 ship support for aarm64, which this specific bit of hardware requires.
$ git grep --heading -A 10 "static struct ib_ucontext \*$affected_function" -- '*.[ch]'
drivers/infiniband/hw/hns/hns_roce_main.c
static struct ib_ucontext *hns_roce_alloc_ucontext(struct ib_device *ib_dev,
struct ib_udata *udata)
{
int ret = 0;
struct hns_roce_ucontext *context;
struct hns_roce_ib_alloc_ucontext_resp resp = {};
struct hns_roce_dev *hr_dev = to_hr_dev(ib_dev);
if (!hr_dev->active)
return ERR_PTR(-EAGAIN);
kernel-alt for el7 arm64 has same patch already applied and not affected.
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-2019-16921 |