The napi_reuse_skb function in net/core/dev.c in the Generic Receive Offload (GRO)…
Priority LOW 28CWE-476Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Complete
- Fix status
- Partial Red Hat: 6 fixed, 1 without a fix
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-476.
Summary
The napi_reuse_skb function in net/core/dev.c in the Generic Receive Offload (GRO) implementation in the Linux kernel before 2.6.38 does not reset the values of certain structure members, which might allow remote attackers to cause a denial of service (NULL pointer dereference) via a malformed VLAN frame.
Why it matters now
EPSS 0.01089 65th percentileScored 2026-11-07
Fix Partial Red Hat: 3 advisoriesRed Hat: 6 fixed, 1 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
Red Hat 3 advisories
- RHSA-2011:1253 Released 2011-09-12 · Red Hat rating Importantkernel-rt security and bug fix update
- Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt-2.6.33.9-rt31.75.el6rt, kernel-rt-debug-2.6.33.9-rt31.75.el6rt, kernel-rt-debug-devel-2.6.33.9-rt31.75.el6rt +7
- RHSA-2011:0429 Released 2011-04-12 · Red Hat rating Importantkernel security and bug fix update
- Red Hat Enterprise Linux (v. 5.6.z server) kernel-2.6.18-238.9.1.el5, kernel-2.6.18-238.9.1.el5.ia64, kernel-PAE-2.6.18-238.9.1.el5 +14
- RHSA-2011:0421 Released 2011-04-08 · Red Hat rating Importantkernel security and bug fix update
- Red Hat Enterprise Linux Desktop (v. 6) kernel-2.6.32-71.24.1.el6, kernel-debug-2.6.32-71.24.1.el6, kernel-debug-devel-2.6.32-71.24.1.el6 +4
- Red Hat Enterprise Linux HPC Node (v. 6) kernel-2.6.32-71.24.1.el6, kernel-debug-2.6.32-71.24.1.el6, kernel-debug-devel-2.6.32-71.24.1.el6 +4
- Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-71.24.1.el6, kernel-bootwrapper-2.6.32-71.24.1.el6, kernel-debug-2.6.32-71.24.1.el6 +7
- Red Hat Enterprise Linux Workstation (v. 6) kernel-2.6.32-71.24.1.el6, kernel-debug-2.6.32-71.24.1.el6, kernel-debug-devel-2.6.32-71.24.1.el6 +4
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise MRG 1 | Affected | No fix yet |
| Red Hat Enterprise Linux (v. 5.6.z server) | Fixed | RHSA-2011:0429 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2011:0421 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2011:0421 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2011:0421 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2011:0421 |
| Red Hat MRG Realtime for RHEL 6 Server v.2 | Fixed | RHSA-2011:1253 |
Timeline
- 2026-10-02 Threatist record created from CVE-2011-1478
- 2026-10-03 Alias added: GHSA-xpmh-v8j6-g4hx
References
Advisory 4
Other 3
- http://mirror.anl.gov/pub/linux/kernel/v2.6/ChangeLog-2.6.38
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6d152e23ad1a7a5b40fef1f42e017d66e6115159
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=66c46d741e2e60f0e8b625b80edb0ab820c46d7a
More Linux Kernel vulnerabilities
- TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2011-1478 · CVE Program
- CVE-2011-1478 · NVD
- FIRST EPSS
- GHSA-xpmh-v8j6-g4hx · GitHub Advisory Database · CC BY 4.0
- CVE-2011-1478 · Red Hat security data · CC BY 4.0
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