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TI-2015-07274 Aliases CVE-2015-8839GHSA-jx35-8v43-xcjq

Multiple race conditions in the ext4 filesystem implementation in the Linux kernel before…

Priority LOW 23CWE-362Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

Summary

Multiple race conditions in the ext4 filesystem implementation in the Linux kernel before 4.5 allow local users to cause a denial of service (disk corruption) by writing to a page that is associated with a different user's file after unsynchronized hole punching and page-fault handling.

Why it matters now

EPSS 0.00351 28th percentileScored 2026-11-07
Fix Fixed Red Hat: 3 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 10

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*up to 4.4.221VulnerableLinux
cpe:2.3:o:linux:linux_kernel:4.5:rc1:*:*:*:*:*:*4.5 rc1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:4.5:rc2:*:*:*:*:*:*4.5 rc2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:4.5:rc3:*:*:*:*:*:*4.5 rc3VulnerableLinux
cpe:2.3:o:linux:linux_kernel:4.5:rc4:*:*:*:*:*:*4.5 rc4VulnerableLinux
cpe:2.3:o:linux:linux_kernel:4.5:rc5:*:*:*:*:*:*4.5 rc5VulnerableLinux
cpe:2.3:o:linux:linux_kernel:4.5:rc6:*:*:*:*:*:*4.5 rc6VulnerableLinux
cpe:2.3:o:linux:linux_kernel:4.5:rc7:*:*:*:*:*:*4.5 rc7VulnerableLinux
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*14.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*16.04VulnerableCanonical
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions up to 4.4.221 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:4.5:rc1:*:*:*:*:*:* Versions 4.5 rc1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:4.5:rc2:*:*:*:*:*:* Versions 4.5 rc2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:4.5:rc3:*:*:*:*:*:* Versions 4.5 rc3 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:4.5:rc4:*:*:*:*:*:* Versions 4.5 rc4 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:4.5:rc5:*:*:*:*:*:* Versions 4.5 rc5 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:4.5:rc6:*:*:*:*:*:* Versions 4.5 rc6 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:4.5:rc7:*:*:*:*:*:* Versions 4.5 rc7 Vulnerable ·Linux
  • cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* Versions 14.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* Versions 16.04 Vulnerable ·Canonical

Remediation

Red Hat 3 advisories

  • RHSA-2017:2669 Released 2017-09-06 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt-1:3.10.0-693.2.1.rt56.585.el6rt, kernel-rt-debug-1:3.10.0-693.2.1.rt56.585.el6rt, kernel-rt-debug-devel-1:3.10.0-693.2.1.rt56.585.el6rt +7
  • RHSA-2017:1842 Released 2017-08-01 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Client (v. 7) kernel-3.10.0-693.el7, kernel-abi-whitelists-3.10.0-693.el7, kernel-debug-3.10.0-693.el7 +7
    • Red Hat Enterprise Linux Client Optional (v. 7) kernel-tools-libs-devel-3.10.0-693.el7
    • Red Hat Enterprise Linux ComputeNode (v. 7) kernel-3.10.0-693.el7, kernel-abi-whitelists-3.10.0-693.el7, kernel-debug-3.10.0-693.el7 +7
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-tools-libs-devel-3.10.0-693.el7
    • Red Hat Enterprise Linux Server (v. 7) kernel-3.10.0-693.el7, kernel-abi-whitelists-3.10.0-693.el7, kernel-bootwrapper-3.10.0-693.el7 +10
    • Red Hat Enterprise Linux Server Optional (v. 7) kernel-debug-devel-3.10.0-693.el7, kernel-doc-3.10.0-693.el7, kernel-tools-libs-devel-3.10.0-693.el7
    • Red Hat Enterprise Linux Workstation (v. 7) kernel-3.10.0-693.el7, kernel-abi-whitelists-3.10.0-693.el7, kernel-debug-3.10.0-693.el7 +7
    • Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-tools-libs-devel-3.10.0-693.el7
  • RHSA-2017:2077 Released 2017-08-01 · Red Hat rating Important
    kernel-rt security, bug fix, and enhancement update
    • Red Hat Enterprise Linux for Real Time (v. 7) kernel-rt-3.10.0-693.rt56.617.el7, kernel-rt-debug-3.10.0-693.rt56.617.el7, kernel-rt-debug-devel-3.10.0-693.rt56.617.el7 +4
    • Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt-3.10.0-693.rt56.617.el7, kernel-rt-debug-3.10.0-693.rt56.617.el7, kernel-rt-debug-devel-3.10.0-693.rt56.617.el7 +7

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2017:1842
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2017:1842
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2017:1842
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2017:1842
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2017:1842
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2017:1842
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2017:1842
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2017:1842
Red Hat Enterprise Linux for Real Time (v. 7)Fixed RHSA-2017:2077
Red Hat Enterprise Linux for Real Time for NFV (v. 7)Fixed RHSA-2017:2077
Red Hat MRG Realtime for RHEL 6 Server v.2Fixed RHSA-2017:2669
Not affected: 7 products
  • Red Hat Enterprise Linux 4
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux Client (v. 7)
  • Red Hat Enterprise Linux ComputeNode (v. 7)
  • Red Hat Enterprise Linux Server (v. 7)
  • Red Hat Enterprise Linux Workstation (v. 7)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2015-8839
  2. 2026-10-03 Alias added: GHSA-jx35-8v43-xcjq

References

Advisory 12

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences