kernel: gro: reset dev and skb_iff on skb reuse
Published Oct 23, 2011
5.7
MEDIUMCVSS 2.0
EPSS 1.09%
Description
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.
Affected products
No data.
- < 2.6.38
No data.
Red Hat Enterprise Linux 5
kernel-0:2.6.18-238.9.1.el5
Fixed · RHSA-2011:0429
Red Hat Enterprise Linux 6
kernel-0:2.6.32-71.24.1.el6
Fixed · RHSA-2011:0421
Red Hat Enterprise MRG 2
kernel-rt-0:2.6.33.9-rt31.75.el6rt
Fixed · RHSA-2011:1253
Red Hat Enterprise MRG 1
kernel-rt
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel-0:2.6.18-238.9.1.el5 | Fixed | RHSA-2011:0429 |
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-71.24.1.el6 | Fixed | RHSA-2011:0421 |
| Red Hat Enterprise MRG 2 | kernel-rt-0:2.6.33.9-rt31.75.el6rt | Fixed | RHSA-2011:1253 |
| Red Hat Enterprise MRG 1 | kernel-rt | Affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the version of Linux kernel as shipped with Red Hat Enterprise Linux 4 as it did not support Generic Receive Offload (GRO). It has been addressed in Red Hat Enterprise Linux 5, 6, and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-0429.html, https://rhn.redhat.com/errata/RHSA-2011-0421.html and https://rhn.redhat.com/errata/RHSA-2011-1253.html.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:A/AC:M/Au:N/C:N/I:N/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.09% (0.01089) | 64.10th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.09% (0.01089) | 60.89th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.91% (0.00911) | 74.19th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.69% (0.00691) | 80.83th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.69% (0.00691) | 79.52th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.69% (0.00691) | 77.05th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.97% (0.01974) | 78.97th | v2 (v2022.01.01) |
| Feb 13, 2023 | 1.97% (0.01974) | 78.46th | v2 (v2022.01.01) |
| Feb 3, 2023 | 3.78% (0.03779) | 85.12th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.97% (0.01974) | 77.12th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.97% (0.01974) | 56.20th | v2 (v2022.01.01) |
References (12)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=66c46d741e2e60f0e8b625b80edb0ab820c46d7a x_refsource_CONFIRM
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6d152e23ad1a7a5b40fef1f42e017d66e6115159 x_refsource_CONFIRM
- http://mirror.anl.gov/pub/linux/kernel/v2.6/ChangeLog-2.6.38 x_refsource_CONFIRMBroken Link
- http://openwall.com/lists/oss-security/2011/03/28/1 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://secunia.com/advisories/46397 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://securityreason.com/securityalert/8480 third-party-advisoryx_refsource_SREASONThird Party Advisory
- http://www.securityfocus.com/archive/1/520102/100/0/threaded mailing-listx_refsource_BUGTRAQThird Party AdvisoryVDB Entry
- http://www.vmware.com/security/advisories/VMSA-2011-0012.html x_refsource_CONFIRMThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2011-1478 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=691270 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2011-1478
- https://www.cve.org/CVERecord?id=CVE-2011-1478
Change history (0)
No recorded changes yet.