CVE-2026-98387
N/AIn the Linux kernel, the following vulnerability has been resolved: s390/crypto: Fix skcipher_walk return code handling in aes_s390 The return codes from skcipher_walk_virt() were not properly checked before entering the processing loops in ecb_aes_crypt() and ctr_aes_crypt(). If skcipher_walk_virt() fails, the walk structure may be in an undefined state, and attempting to process data could lead to incorrect behavior or accessing uninitialized memory. Add proper return code checking to ensure correct handling of the walk initialization and walk advance and eventually return to the caller with that return code.
No known exploitation, public exploit, or elevated probability at this time. Track for changes.
Exploitation likelihood
0.2%chance of exploitation in 30 days · 10th percentile
Impact if exploited
—CVSS · not scored
- No impact metrics
Proof of concept
No public PoC is currently catalogued.
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References and research data (JSON)
Vendor product assessments
Showing 32 of 277 vendor product statements; 245 omitted. Read the full vendor advisory.
kernel as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-64k-modules-core as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-64k-modules-core
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-doc as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-doc
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-rt-64k-debug-modules-core as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-rt-64k-debug-modules-core
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-rt-debug-modules-extra as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-rt-debug-modules-extra
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-zfcpdump-devel as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-zfcpdump-devel
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-debug as a component of Red Hat Enterprise Linux 6 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-debug
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- no fix planned: Out of support scope
kernel-64k as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-64k
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-64k-modules as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-64k-modules
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-debug-modules-core as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-debug-modules-core
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-modules-internal as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-modules-internal
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-rt-64k-debug-modules-internal as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-rt-64k-debug-modules-internal
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-rt-debug-devel as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-rt-debug-devel
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-rt-modules-extra as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-rt-modules-extra
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-zfcpdump-devel-matched as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-zfcpdump-devel-matched
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4 · known affected
Vendor assessment for this product only.
pkg:oci/ose-rhel-coreos-9?repository_url=registry.redhat.io/openshift/ose-rhel-coreos-9
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
bpftool as a component of Red Hat Enterprise Linux 7 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/bpftool
Red Hat · CVE-2026-98387 · Updated 2026-10-18T08:29:03+00:00kernel-debug-devel as a component of Red Hat Enterprise Linux 7 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-debug-devel
Red Hat · CVE-2026-98387 · Updated 2026-10-18T08:29:03+00:00kernel-kdump-devel as a component of Red Hat Enterprise Linux 7 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-kdump-devel
Red Hat · CVE-2026-98387 · Updated 2026-10-18T08:29:03+00:00kernel-rt-devel as a component of Red Hat Enterprise Linux 7 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-rt-devel
Red Hat · CVE-2026-98387 · Updated 2026-10-18T08:29:03+00:00kernel-rt-trace-kvm as a component of Red Hat Enterprise Linux 7 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-rt-trace-kvm
Red Hat · CVE-2026-98387 · Updated 2026-10-18T08:29:03+00:00kernel.src as a component of Red Hat Enterprise Linux 7 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel?arch=src
Red Hat · CVE-2026-98387 · Updated 2026-10-18T08:29:03+00:00kernel-abi-stablelists as a component of Red Hat Enterprise Linux 8 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-abi-stablelists
Red Hat · CVE-2026-98387 · Updated 2026-10-18T08:29:03+00:00kernel-debug-core as a component of Red Hat Enterprise Linux 8 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-debug-core
Red Hat · CVE-2026-98387 · Updated 2026-10-18T08:29:03+00:00kernel-doc as a component of Red Hat Enterprise Linux 8 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-doc
Red Hat · CVE-2026-98387 · Updated 2026-10-18T08:29:03+00:00kernel-modules-internal as a component of Red Hat Enterprise Linux 8 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-modules-internal
Red Hat · CVE-2026-98387 · Updated 2026-10-18T08:29:03+00:00kernel-rt-debug-devel as a component of Red Hat Enterprise Linux 8 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-rt-debug-devel
Red Hat · CVE-2026-98387 · Updated 2026-10-18T08:29:03+00:00kernel-rt-devel as a component of Red Hat Enterprise Linux 8 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-rt-devel
Red Hat · CVE-2026-98387 · Updated 2026-10-18T08:29:03+00:00kernel-rt-selftests-internal as a component of Red Hat Enterprise Linux 8 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-rt-selftests-internal
Red Hat · CVE-2026-98387 · Updated 2026-10-18T08:29:03+00:00kernel-tools-libs-devel as a component of Red Hat Enterprise Linux 8 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-tools-libs-devel
Red Hat · CVE-2026-98387 · Updated 2026-10-18T08:29:03+00:00kernel-zfcpdump-modules-extra as a component of Red Hat Enterprise Linux 8 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-zfcpdump-modules-extra
Red Hat · CVE-2026-98387 · Updated 2026-10-18T08:29:03+00:00openshift/ose-rhel-coreos-8 as a component of Red Hat OpenShift Container Platform 4 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:oci/ose-rhel-coreos-8?repository_url=registry.redhat.io/openshift/ose-rhel-coreos-8
Red Hat · CVE-2026-98387 · Updated 2026-10-18T08:29:03+00:00
References
Advisories
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98387.json Red Hat · CVE-2026-98387 · Updated 2026-10-18T08:29:03+00:00
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-101036 EUVD · EUVD-2026-101036
Technical & other
- https://git.kernel.org/stable/c/89b58645646d1dac34162cc2597f42266bfbf930CVE record · Linux · Updated 2026-10-19T09:18:38.225Z
NVD · CVE-2026-98387 · Updated 2026-10-19T10:18:42.043 - https://git.kernel.org/stable/c/35c3f97569306050e818fa18e17fa97c358f0f28CVE record · Linux · Updated 2026-10-19T09:18:38.225Z
NVD · CVE-2026-98387 · Updated 2026-10-19T10:18:42.043 - https://git.kernel.org/stable/c/aea3e1588f08e381a7a57b2bf1a60cc2347904cdCVE record · Linux · Updated 2026-10-19T09:18:38.225Z
NVD · CVE-2026-98387 · Updated 2026-10-19T10:18:42.043 - https://git.kernel.org/stable/c/15fa028589c3a2545f0bff355eff06d5844196bfCVE record · Linux · Updated 2026-10-19T09:18:38.225Z
NVD · CVE-2026-98387 · Updated 2026-10-19T10:18:42.043 - https://access.redhat.com/security/cve/CVE-2026-98387 Red Hat · CVE-2026-98387 · Updated 2026-10-18T08:29:03+00:00
- https://bugzilla.redhat.com/show_bug.cgi?id=2552219 Red Hat · CVE-2026-98387 · Updated 2026-10-18T08:29:03+00:00
- https://www.cve.org/CVERecord?id=CVE-2026-98387 Red Hat · CVE-2026-98387 · Updated 2026-10-18T08:29:03+00:00
- https://nvd.nist.gov/vuln/detail/CVE-2026-98387 Red Hat · CVE-2026-98387 · Updated 2026-10-18T08:29:03+00:00
- https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98387.mbox Red Hat · CVE-2026-98387 · Updated 2026-10-18T08:29:03+00:00