CVE record · CVE-2026-90049

net: skbuff: don't skb_tx_error() the source skb in skb_zerocopy()

CVSS 9.3 CriticalCriticalEPSS 0.0017 · 6th percentile

Critical, because:

CVSS score 9.3: 9.0 or more.

Published by the CVE Program (CNA: Linux) at 16 Sept 2026, 10:33 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Linux	Linux	affected 36d5fe6a000790f56039afe26834265db0a3ad4c to before 849bdb83123760a865bcb2970127f4c0b9423ba3 git affected 36d5fe6a000790f56039afe26834265db0a3ad4c to before fb10e0e9b220a2eed08931a60dbaad9a2370c908 git affected 36d5fe6a000790f56039afe26834265db0a3ad4c to before 767ec2a65cc022d303b0c9c12811e7db22057341 git affected 36d5fe6a000790f56039afe26834265db0a3ad4c to before 8069643ae64dfdf634b6c78c7f622e5323031436 git affected 36d5fe6a000790f56039afe26834265db0a3ad4c to before 04dd250a78e268af3e7124beb1dc10ec1dd88d60 git affected 36d5fe6a000790f56039afe26834265db0a3ad4c to before a13b1e80e5015cd732440b475c0ef443dc4a2157 git affected 36d5fe6a000790f56039afe26834265db0a3ad4c to before bab5a851e44a3601d31f2aa8043f385bb50ac5d9 git affected 36d5fe6a000790f56039afe26834265db0a3ad4c to before 8ece906150128d5ec2462aabcc978c568433eca4 git affected c5f0c0e7525443add533495e93ba8de6feab2396 git affected 1674b4bf3eea3cac51b70778e89f8025f7cfe695 git affected 3.10.51 to before 3.11 semver affected 3.12.40 to before 3.13 semver Other versions: unaffected
Linux	Linux	affected 3.14 unaffected before 3.14 semver unaffected 5.10.270 to 5.10., inclusive semver unaffected 5.15.221 to 5.15., inclusive semver unaffected 6.1.188 to 6.1., inclusive semver unaffected 6.6.157 to 6.6., inclusive semver unaffected 6.12.110 to 6.12., inclusive semver unaffected 6.18.51 to 6.18., inclusive semver unaffected 7.2.5 to 7.2., inclusive semver unaffected 7.3 to , inclusive original_commit_for_fix Other versions: affected

Identifiers: CVE-2026-90049
CNA: Linux
Tags: Linux kernel
Published: 16 Sept 2026
Updated: 19 Oct 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
9.3	Critical	3.1	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H	CNA (Linux)

CISA KEV Not listed.
EPSS 0.0017, the 6th percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 16 Sept 2026. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.