CVE-2026-93286
N/AIn the Linux kernel, the following vulnerability has been resolved: net: appletalk: fix NULL pointer dereference in aarp_send_ddp() aarp_send_ddp() calls atalk_find_dev_addr(dev) in the LocalTalk fast path without checking for NULL. When the device has no AppleTalk interface configured (dev->atalk_ptr == NULL), this leads to a NULL pointer dereference at the at->s_net access. KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] RIP: 0010:aarp_send_ddp (net/appletalk/aarp.c:552 (discriminator 2)) Call Trace: <TASK> atalk_sendmsg (net/appletalk/ddp.c:1715) __sys_sendto (net/socket.c:2265 (discriminator 1)) __x64_sys_sendto (net/socket.c:2272) do_syscall_64 (arch/x86/entry/syscall_64.c:94) entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) Add a NULL check consistent with the other callers of atalk_find_dev_addr().
No known exploitation, public exploit, or elevated probability at this time. Track for changes.
Exploitation likelihood
0.2%chance of exploitation in 30 days · 7th 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 6 · 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.
- no fix planned: Out of support scope
kernel-abi-whitelists as a component of Red Hat Enterprise Linux 6 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-abi-whitelists
- 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-bootwrapper as a component of Red Hat Enterprise Linux 6 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-bootwrapper
- 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-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-debug-devel as a component of Red Hat Enterprise Linux 6 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-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.
- no fix planned: Out of support scope
kernel-devel as a component of Red Hat Enterprise Linux 6 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-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.
- no fix planned: Out of support scope
kernel-doc as a component of Red Hat Enterprise Linux 6 · 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.
- no fix planned: Out of support scope
kernel-firmware as a component of Red Hat Enterprise Linux 6 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-firmware
- 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-headers as a component of Red Hat Enterprise Linux 6 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-headers
- 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-kdump as a component of Red Hat Enterprise Linux 6 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-kdump
- 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-kdump-devel as a component of Red Hat Enterprise Linux 6 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-kdump-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.
- no fix planned: Out of support scope
kernel.src as a component of Red Hat Enterprise Linux 6 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel?arch=src
- 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
perf as a component of Red Hat Enterprise Linux 6 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/perf
- 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
python-perf as a component of Red Hat Enterprise Linux 6 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/python-perf
- 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 as a component of Red Hat Enterprise Linux 10 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel
Red Hat · CVE-2026-93286 · Updated 2026-10-17T21:46:40+00:00kernel-abi-stablelists as a component of Red Hat Enterprise Linux 10 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-abi-stablelists
Red Hat · CVE-2026-93286 · Updated 2026-10-17T21:46:40+00:00kernel-modules-extra-matched as a component of Red Hat Enterprise Linux 10 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-modules-extra-matched
Red Hat · CVE-2026-93286 · Updated 2026-10-17T21:46:40+00:00kernel-rt-core as a component of Red Hat Enterprise Linux 10 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-rt-core
Red Hat · CVE-2026-93286 · Updated 2026-10-17T21:46:40+00:00kernel-uki-virt as a component of Red Hat Enterprise Linux 10 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-uki-virt
Red Hat · CVE-2026-93286 · Updated 2026-10-17T21:46:40+00:00bpftool 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-2026-93286 · Updated 2026-10-17T21:46:40+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-2026-93286 · Updated 2026-10-17T21:46:40+00:00kernel-abi-whitelists 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-whitelists
Red Hat · CVE-2026-93286 · Updated 2026-10-17T21:46:40+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-2026-93286 · Updated 2026-10-17T21:46:40+00:00kernel-rt.src 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?arch=src
Red Hat · CVE-2026-93286 · Updated 2026-10-17T21:46:40+00:00kernel as a component of Red Hat Enterprise Linux 9 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel
Red Hat · CVE-2026-93286 · Updated 2026-10-17T21:46:40+00:00kernel-64k-modules-extra as a component of Red Hat Enterprise Linux 9 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-64k-modules-extra
Red Hat · CVE-2026-93286 · Updated 2026-10-17T21:46:40+00:00kernel-debug-uki-virt as a component of Red Hat Enterprise Linux 9 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-debug-uki-virt
Red Hat · CVE-2026-93286 · Updated 2026-10-17T21:46:40+00:00kernel-rt-64k-debug as a component of Red Hat Enterprise Linux 9 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-rt-64k-debug
Red Hat · CVE-2026-93286 · Updated 2026-10-17T21:46:40+00:00kernel-rt-64k-modules-internal as a component of Red Hat Enterprise Linux 9 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-rt-64k-modules-internal
Red Hat · CVE-2026-93286 · Updated 2026-10-17T21:46:40+00:00kernel-rt-kvm as a component of Red Hat Enterprise Linux 9 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-rt-kvm
Red Hat · CVE-2026-93286 · Updated 2026-10-17T21:46:40+00:00kernel-zfcpdump-devel as a component of Red Hat Enterprise Linux 9 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-zfcpdump-devel
Red Hat · CVE-2026-93286 · Updated 2026-10-17T21:46:40+00:00openshift/ose-rhel-coreos-9 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-9?repository_url=registry.redhat.io/openshift/ose-rhel-coreos-9
Red Hat · CVE-2026-93286 · Updated 2026-10-17T21:46:40+00:00
References
Advisories
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93286.json Red Hat · CVE-2026-93286 · Updated 2026-10-17T21:46:40+00:00
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-86165 EUVD · EUVD-2026-86165
Technical & other
- https://git.kernel.org/stable/c/51cc5e756cec6071ffc620076aebcf5bae936668CVE record · Linux · Updated 2026-10-03T10:57:12.356Z
NVD · CVE-2026-93286 · Updated 2026-10-03T11:17:47.133 - https://git.kernel.org/stable/c/8c4b9ceb1be780588c1c50d573d5ee308e0874d2CVE record · Linux · Updated 2026-10-03T10:57:12.356Z
NVD · CVE-2026-93286 · Updated 2026-10-03T11:17:47.133 - https://git.kernel.org/stable/c/d643fd42ad96f19b5ce5cb11824fefa617191dbeCVE record · Linux · Updated 2026-10-03T10:57:12.356Z
NVD · CVE-2026-93286 · Updated 2026-10-03T11:17:47.133 - https://git.kernel.org/stable/c/542c1dd41e1b0cd1c2c3ba8091c7d882eea0d680CVE record · Linux · Updated 2026-10-03T10:57:12.356Z
NVD · CVE-2026-93286 · Updated 2026-10-03T11:17:47.133 - https://git.kernel.org/stable/c/8fc30f0cdf4207a5aa2341c0a98d0f1713b3ce2cCVE record · Linux · Updated 2026-10-03T10:57:12.356Z
NVD · CVE-2026-93286 · Updated 2026-10-03T11:17:47.133 - https://git.kernel.org/stable/c/83899a056aeb120898a6e3a989971fc63e274e2eCVE record · Linux · Updated 2026-10-03T10:57:12.356Z
NVD · CVE-2026-93286 · Updated 2026-10-03T11:17:47.133 - https://git.kernel.org/stable/c/9e7f36ab5b7bf68463faa5f7b926fea8f35597bbCVE record · Linux · Updated 2026-10-03T10:57:12.356Z
NVD · CVE-2026-93286 · Updated 2026-10-03T11:17:47.133 - https://access.redhat.com/security/cve/CVE-2026-93286 Red Hat · CVE-2026-93286 · Updated 2026-10-17T21:46:40+00:00
- https://bugzilla.redhat.com/show_bug.cgi?id=2540516 Red Hat · CVE-2026-93286 · Updated 2026-10-17T21:46:40+00:00
- https://www.cve.org/CVERecord?id=CVE-2026-93286 Red Hat · CVE-2026-93286 · Updated 2026-10-17T21:46:40+00:00
- https://nvd.nist.gov/vuln/detail/CVE-2026-93286 Red Hat · CVE-2026-93286 · Updated 2026-10-17T21:46:40+00:00
- https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-93286.mbox Red Hat · CVE-2026-93286 · Updated 2026-10-17T21:46:40+00:00