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Vulnerabilities

Vulnerability · CVE-2026-99284

CVE-2026-99284: net: skbuff: propagate shared-frag marker in skb_zerocopy()

Published Nov 7, 2026 · catalog updated Nov 7, 2026 · Linux Linux Kernel

Last checked Nov 7, 2026. A connected source was read within the last 7 days.

Open the advisory

Exploitation likelihood is not on this record for CVE-2026-99284. A missing EPSS score is not a low risk. Compare Linux Linux Kernel with the linked advisory before you change production.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
  • EPSS is missing. A missing score is not a low risk.

Same product and reporting

Severity
Unknown—
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
Not in the current FIRST EPSS dataset
Remediation
Advisory link
Affected products
Debian:12 linux · Debian:13 linux · Debian:14 linux · linux kernel

From: Greg Kroah-Hartman Description =========== In the Linux kernel, the following vulnerability has been resolved: net: skbuff: propagate shared-frag marker in skb_zerocopy() skb_zerocopy() moves frag descriptors from @from into @to and takes a reference on each frag, but it does not copy skb_shinfo(from)->flags into skb_shinfo(to)->flags. A destination skb holding the same page-cache backed frags as the source therefore reports skb_has_shared_frag() as false. That breaks the invariant relied on by later in-place writers. ESP input checks skb_has_shared_frag() before deci

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • Debian:12 linux6.1.106-1, 6.1.106-2, 6.1.106-3
  • Debian:13 linux0 → 6.12.115-1
  • Debian:14 linux0 → 7.2.14-1
  • linux kernelversion unspecified

How to fix CVE-2026-99284

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

Exploitation likelihood is not on this record for CVE-2026-99284. A missing EPSS score is not a low risk. Compare Linux Linux Kernel with the linked advisory before you change production.

Which versions are affected?

Compare what you have installed with 6.1.106-1, 6.1.106-2, 6.1.106-3, 0 → 6.12.115-1, 0 → 7.2.14-1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS is absent from the current FIRST dataset. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Debian security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Nov 7, 2026 · Linux Kernel CVE

    Detected

    From: Greg Kroah-Hartman Description =========== In the Linux kernel, the following vulnerability has been resolved: net: skbuff: propagate shared-frag marker in skb_zerocopy() skb_zerocopy() moves frag descriptors from @from into @to and takes a reference on each frag, but it does not copy skb_shinfo(from)->flags into skb_shinfo(to)->flags. A destination skb holding the same page-cache backed fra

  2. Nov 7, 2026 · Trivy Vulnerability DB

    Fix available

    linux fixed in 6.12.115-1; linux fixed in 7.2.14-1

  3. Nov 7, 2026 · Trivy Vulnerability DB

    Fix available

    linux fixed in 6.12.115-1

  4. Nov 7, 2026 · Trivy Vulnerability DB

    Fix available

    linux fixed in 7.2.14-1

  5. Nov 7, 2026 · Trivy Vulnerability DB

    Updated

    From: Greg Kroah-Hartman Description =========== In the Linux kernel, the following vulnerability has been resolved: net: skbuff: propagate shared-frag marker in skb_zerocopy() skb_zerocopy() moves frag descriptors from @from into @to and takes a reference on each frag, but it does not copy skb_shinfo(from)->flags into skb_shinfo(to)->flags. A destination skb holding the same page-cache backed fra

Sources

  • Linux Kernel CVEVendor advisoryCVE-2026-99284

    From: Greg Kroah-Hartman Description =========== In the Linux kernel, the following vulnerability has been resolved: net: skbuff: propagate shared-frag marker in skb_zerocopy() skb_zerocopy() moves frag descriptors from @from into @to and takes a reference on each frag, but it do

    git.kernel.org
  • Trivy Vulnerability DBPackage advisoryDEBIAN-CVE-2026-99284
    osv.dev

References

Freshness

Last verified in this catalog Nov 7, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • Trivy Vulnerability DBNov 7, 2026
  • Linux Kernel CVENov 7, 2026