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TI-2017-08980 Aliases CVE-2017-12190GHSA-cw63-cpqx-9vx9

Uncontrolled resource consumption in Linux kernel through v4.14-rc5

Priority LOW 29CWE-400Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 25 fixed, 1 without a fix

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-400.

Summary

The bio_map_user_iov and bio_unmap_user functions in block/bio.c in the Linux kernel before 4.13.8 do unbalanced refcounting when a SCSI I/O vector has small consecutive buffers belonging to the same page. The bio_add_pc_page function merges them into one, but the page reference is never dropped. This causes a memory leak and possible system lockup (exploitable against the host OS by a guest OS user, if a SCSI disk is passed through to a virtual machine) due to an out-of-memory condition.

Why it matters now

EPSS 0.00531 45th percentileScored 2026-11-07
Fix Partial Red Hat: 6 advisoriesRed Hat: 25 fixed, 1 without a fix

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
—Linux kernel through v4.14-rc5Linux kernel through v4.14-rc5—No fix listedCNA
  • Linux kernel through v4.14-rc5 Vendor— Affected Linux kernel through v4.14-rc5 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*up to 4.13.7VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions up to 4.13.7 Vulnerable ·Linux

Remediation

Red Hat 6 advisories

  • RHSA-2019:1190 Released 2019-05-14 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt-1:3.10.0-693.47.2.rt56.641.el6rt, kernel-rt-debug-1:3.10.0-693.47.2.rt56.641.el6rt, kernel-rt-debug-devel-1:3.10.0-693.47.2.rt56.641.el6rt +7
  • RHSA-2019:1170 Released 2019-05-14 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux ComputeNode EUS (v. 7.4) kernel-3.10.0-693.47.2.el7, kernel-abi-whitelists-3.10.0-693.47.2.el7, kernel-debug-3.10.0-693.47.2.el7 +7
    • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.4) kernel-tools-libs-devel-3.10.0-693.47.2.el7
    • Red Hat Enterprise Linux Server EUS (v. 7.4) kernel-3.10.0-693.47.2.el7, kernel-abi-whitelists-3.10.0-693.47.2.el7, kernel-bootwrapper-3.10.0-693.47.2.el7 +10
    • Red Hat Enterprise Linux Server Optional EUS (v. 7.4) kernel-debug-devel-3.10.0-693.47.2.el7, kernel-tools-libs-devel-3.10.0-693.47.2.el7
  • RHSA-2018:1854 Released 2018-06-19 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux Desktop (v. 6) kernel-2.6.32-754.el6, kernel-abi-whitelists-2.6.32-754.el6, kernel-debug-2.6.32-754.el6 +6
    • Red Hat Enterprise Linux Desktop Optional (v. 6) python-perf-2.6.32-754.el6
    • Red Hat Enterprise Linux HPC Node (v. 6) kernel-2.6.32-754.el6, kernel-abi-whitelists-2.6.32-754.el6, kernel-debug-2.6.32-754.el6 +6
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) python-perf-2.6.32-754.el6
    • Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-754.el6, kernel-abi-whitelists-2.6.32-754.el6, kernel-bootwrapper-2.6.32-754.el6 +9
    • Red Hat Enterprise Linux Server Optional (v. 6) python-perf-2.6.32-754.el6
    • Red Hat Enterprise Linux Workstation (v. 6) kernel-2.6.32-754.el6, kernel-abi-whitelists-2.6.32-754.el6, kernel-debug-2.6.32-754.el6 +6
    • Red Hat Enterprise Linux Workstation Optional (v. 6) python-perf-2.6.32-754.el6
Show 3 more Red Hat advisories
  • RHSA-2018:1062 Released 2018-04-10 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Client (v. 7) kernel-3.10.0-862.el7, kernel-abi-whitelists-3.10.0-862.el7, kernel-debug-3.10.0-862.el7 +8
    • Red Hat Enterprise Linux Client Optional (v. 7) kernel-tools-libs-devel-3.10.0-862.el7
    • Red Hat Enterprise Linux ComputeNode (v. 7) kernel-3.10.0-862.el7, kernel-abi-whitelists-3.10.0-862.el7, kernel-debug-3.10.0-862.el7 +8
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-tools-libs-devel-3.10.0-862.el7
    • Red Hat Enterprise Linux Server (v. 7) kernel-3.10.0-862.el7, kernel-abi-whitelists-3.10.0-862.el7, kernel-bootwrapper-3.10.0-862.el7 +11
    • Red Hat Enterprise Linux Server Optional (v. 7) kernel-debug-devel-3.10.0-862.el7, kernel-tools-libs-devel-3.10.0-862.el7
    • Red Hat Enterprise Linux Workstation (v. 7) kernel-3.10.0-862.el7, kernel-abi-whitelists-3.10.0-862.el7, kernel-debug-3.10.0-862.el7 +8
    • Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-tools-libs-devel-3.10.0-862.el7
  • RHSA-2018:0676 Released 2018-04-10 · Red Hat rating Important
    kernel-rt security, bug fix, and enhancement update
    • Red Hat Enterprise Linux for Real Time (v. 7) kernel-rt-3.10.0-862.rt56.804.el7, kernel-rt-debug-3.10.0-862.rt56.804.el7, kernel-rt-debug-devel-3.10.0-862.rt56.804.el7 +4
    • Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt-3.10.0-862.rt56.804.el7, kernel-rt-debug-3.10.0-862.rt56.804.el7, kernel-rt-debug-devel-3.10.0-862.rt56.804.el7 +7
  • RHSA-2018:0654 Released 2018-04-10 · Red Hat rating Important
    kernel-alt security, bug fix, and enhancement update
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) kernel-4.14.0-49.el7a, kernel-abi-whitelists-4.14.0-49.el7a, kernel-alt-4.14.0-49.el7a +12
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) kernel-debug-devel-4.14.0-49.el7a, kernel-doc-4.14.0-49.el7a, kernel-tools-libs-devel-4.14.0-49.el7a

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2018:1062
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2018:1062
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2018:1062
Red Hat Enterprise Linux ComputeNode EUS (v. 7.4)Fixed RHSA-2019:1170
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2018:1062
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.4)Fixed RHSA-2019:1170
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2018:1854
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2018:1854
Red Hat Enterprise Linux HPC Node (v. 6)Fixed RHSA-2018:1854
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2018:1854
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2018:1854
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2018:1062
Red Hat Enterprise Linux Server EUS (v. 7.4)Fixed RHSA-2019:1170
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2018:1854
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2018:1062
Red Hat Enterprise Linux Server Optional EUS (v. 7.4)Fixed RHSA-2019:1170
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2018:1854
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2018:1062
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2018:1854
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2018:1062
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7)Fixed RHSA-2018:0654
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7)Fixed RHSA-2018:0654
Red Hat Enterprise Linux for Real Time (v. 7)Fixed RHSA-2018:0676
Red Hat Enterprise Linux for Real Time for NFV (v. 7)Fixed RHSA-2018:0676
Red Hat MRG Realtime for RHEL 6 Server v.2Fixed RHSA-2019:1190

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-12190
  2. 2026-10-03 Alias added: GHSA-cw63-cpqx-9vx9

References

Patch 5

Advisory 12

Other 2

  • 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
See all 15278 →

Sources

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