fs/eventpoll.c in the Linux kernel before 2.6.38 places epoll file descriptors within…
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Complete
- Fix status
- Partial Red Hat: 6 fixed, 2 without a fix
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-400.
Summary
fs/eventpoll.c in the Linux kernel before 2.6.38 places epoll file descriptors within other epoll data structures without properly checking for (1) closed loops or (2) deep chains, which allows local users to cause a denial of service (deadlock or stack memory consumption) via a crafted application that makes epoll_create and epoll_ctl system calls.
Why it matters now
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-2011:0883 Released 2011-06-21 · Red Hat rating Importantkernel security and bug fix update
- Red Hat Enterprise Linux Server EUS (v. 6.0) kernel-2.6.32-71.31.1.el6, kernel-bootwrapper-2.6.32-71.31.1.el6, kernel-debug-2.6.32-71.31.1.el6 +8
- RHSA-2011:0542 Released 2011-05-19 · Red Hat rating ImportantRed Hat Enterprise Linux 6.1 kernel security, bug fix and enhancement update
- Red Hat Enterprise Linux Desktop (v. 6) kernel-2.6.32-131.0.15.el6, kernel-debug-2.6.32-131.0.15.el6, kernel-debug-devel-2.6.32-131.0.15.el6 +5
- Red Hat Enterprise Linux HPC Node (v. 6) kernel-2.6.32-131.0.15.el6, kernel-debug-2.6.32-131.0.15.el6, kernel-debug-devel-2.6.32-131.0.15.el6 +5
- Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-131.0.15.el6, kernel-bootwrapper-2.6.32-131.0.15.el6, kernel-debug-2.6.32-131.0.15.el6 +8
- Red Hat Enterprise Linux Workstation (v. 6) kernel-2.6.32-131.0.15.el6, kernel-debug-2.6.32-131.0.15.el6, kernel-debug-devel-2.6.32-131.0.15.el6 +5
- RHSA-2011:0500 Released 2011-05-10 · Red Hat rating Importantkernel-rt security and bug fix update
- MRG Realtime for RHEL 5 Server kernel-rt-2.6.33.9-rt31.64.el5rt, kernel-rt-debug-2.6.33.9-rt31.64.el5rt, kernel-rt-debug-devel-2.6.33.9-rt31.64.el5rt +7
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 4 | Affected | No fix yet |
| Red Hat Enterprise Linux 5 | Affected | No fix yet |
| MRG Realtime for RHEL 5 Server | Fixed | RHSA-2011:0500 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2011:0542 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2011:0542 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2011:0542 |
| Red Hat Enterprise Linux Server EUS (v. 6.0) | Fixed | RHSA-2011:0883 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2011:0542 |
Timeline
- 2026-10-02 Threatist record created from CVE-2011-1082
- 2026-10-03 Alias added: GHSA-9r52-fvvv-j5xf
References
Patch 4
More Linux Kernel vulnerabilities
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- 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-2011-1082 · CVE Program
- CVE-2011-1082 · NVD
- FIRST EPSS
- GHSA-9r52-fvvv-j5xf · GitHub Advisory Database · CC BY 4.0
- CVE-2011-1082 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences