Medium severity6.5NVD Advisory· Published Nov 22, 2017· Updated Jun 17, 2026
CVE-2017-12190
CVE-2017-12190
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
61- osv-coords59 versionspkg:rpm/suse/kernel-bigmem&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/kernel-bigmem&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4pkg:rpm/suse/kernel-bigsmp&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-LTSSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-LTSSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/kernel-default&distro=SUSE%20OpenStack%20Cloud%206pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2011%20SP4pkg:rpm/suse/kernel-ec2&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2012pkg:rpm/suse/kernel-ec2&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/kernel-ec2&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-LTSSpkg:rpm/suse/kernel-ec2&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/kernel-ec2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4pkg:rpm/suse/kernel-pae&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/kernel-pae&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-LTSSpkg:rpm/suse/kernel-pae&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/kernel-pae&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4pkg:rpm/suse/kernel-ppc64&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/kernel-ppc64&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2011%20SP4pkg:rpm/suse/kernel-rt_trace&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2011%20SP4pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-LTSSpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSSpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSSpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/kernel-source&distro=SUSE%20OpenStack%20Cloud%206pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2011%20SP4pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-LTSSpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSSpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSSpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/kernel-syms&distro=SUSE%20OpenStack%20Cloud%206pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2011%20SP4pkg:rpm/suse/kernel-trace&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/kernel-trace&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-LTSSpkg:rpm/suse/kernel-trace&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/kernel-trace&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4pkg:rpm/suse/kernel-xen&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/kernel-xen&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-LTSSpkg:rpm/suse/kernel-xen&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/kernel-xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSSpkg:rpm/suse/kernel-xen&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSSpkg:rpm/suse/kernel-xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4pkg:rpm/suse/kernel-xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/kernel-xen&distro=SUSE%20OpenStack%20Cloud%206pkg:rpm/suse/kgraft-patch-SLE12-SP1_Update_26&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSSpkg:rpm/suse/kgraft-patch-SLE12-SP1_Update_26&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/kgraft-patch-SLE12-SP1_Update_26&distro=SUSE%20OpenStack%20Cloud%206pkg:rpm/suse/kgraft-patch-SLE12_Update_33&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS
< 3.0.101-108.38.1+ 58 more
- (no CPE)range: < 3.0.101-108.38.1
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- (no CPE)range: < 3.0.101-0.47.106.22.1
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- (no CPE)range: < 3.0.101-108.38.1
- (no CPE)range: < 3.12.74-60.64.85.1
- (no CPE)range: < 3.12.61-52.125.1
- (no CPE)range: < 3.0.101-108.38.1
- (no CPE)range: < 3.12.74-60.64.85.1
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- (no CPE)range: < 3.0.101-108.38.1
- (no CPE)range: < 3.12.61-52.125.1
- (no CPE)range: < 3.0.101-0.47.106.22.1
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- (no CPE)range: < 3.0.101-108.38.1
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- (no CPE)range: < 3.0.101-0.47.106.22.1
- (no CPE)range: < 3.0.101-0.47.106.22.1
- (no CPE)range: < 3.0.101-108.38.1
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- (no CPE)range: < 3.0.101.rt130-69.24.1
- (no CPE)range: < 3.0.101.rt130-69.24.1
- (no CPE)range: < 3.0.101-0.47.106.22.1
- (no CPE)range: < 3.0.101-0.47.106.22.1
- (no CPE)range: < 3.0.101-108.38.1
- (no CPE)range: < 3.12.74-60.64.85.1
- (no CPE)range: < 3.12.61-52.125.1
- (no CPE)range: < 3.0.101-108.38.1
- (no CPE)range: < 3.12.74-60.64.85.1
- (no CPE)range: < 3.12.74-60.64.85.1
- (no CPE)range: < 3.0.101.rt130-69.24.1
- (no CPE)range: < 3.0.101-0.47.106.22.1
- (no CPE)range: < 3.0.101-0.47.106.22.1
- (no CPE)range: < 3.0.101-108.38.1
- (no CPE)range: < 3.12.74-60.64.85.1
- (no CPE)range: < 3.12.61-52.125.1
- (no CPE)range: < 3.0.101-108.38.1
- (no CPE)range: < 3.12.74-60.64.85.1
- (no CPE)range: < 3.12.74-60.64.85.1
- (no CPE)range: < 3.0.101.rt130-69.24.1
- (no CPE)range: < 3.0.101-0.47.106.22.1
- (no CPE)range: < 3.0.101-0.47.106.22.1
- (no CPE)range: < 3.0.101-108.38.1
- (no CPE)range: < 3.0.101-108.38.1
- (no CPE)range: < 3.0.101-0.47.106.22.1
- (no CPE)range: < 3.0.101-0.47.106.22.1
- (no CPE)range: < 3.0.101-108.38.1
- (no CPE)range: < 3.12.74-60.64.85.1
- (no CPE)range: < 3.12.61-52.125.1
- (no CPE)range: < 3.0.101-108.38.1
- (no CPE)range: < 3.12.74-60.64.85.1
- (no CPE)range: < 3.12.74-60.64.85.1
- (no CPE)range: < 1-2.3.1
- (no CPE)range: < 1-2.3.1
- (no CPE)range: < 1-2.3.1
- (no CPE)range: < 1-1.3.1
Patches
Vulnerability mechanics
References
20- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/nvdIssue TrackingPatchVendor Advisory
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/nvdIssue TrackingPatchVendor Advisory
- bugzilla.redhat.com/show_bug.cginvdIssue TrackingPatchThird Party Advisory
- github.com/torvalds/linux/commit/2b04e8f6bbb196cab4b232af0f8d48ff2c7a8058nvdIssue TrackingPatchThird Party Advisory
- github.com/torvalds/linux/commit/95d78c28b5a85bacbc29b8dba7c04babb9b0d467nvdIssue TrackingPatchThird Party Advisory
- seclists.org/oss-sec/2017/q4/52nvdIssue TrackingMailing ListThird Party Advisory
- www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.8nvdIssue TrackingThird Party Advisory
- www.securityfocus.com/bid/101911nvdIssue TrackingThird Party AdvisoryVDB Entry
- access.redhat.com/errata/RHSA-2018:0654nvd
- access.redhat.com/errata/RHSA-2018:0676nvd
- access.redhat.com/errata/RHSA-2018:1062nvd
- access.redhat.com/errata/RHSA-2018:1854nvd
- access.redhat.com/errata/RHSA-2019:1170nvd
- access.redhat.com/errata/RHSA-2019:1190nvd
- lists.debian.org/debian-lts-announce/2017/12/msg00004.htmlnvd
- support.f5.com/csp/article/K93472064nvd
- usn.ubuntu.com/3582-1/nvd
- usn.ubuntu.com/3582-2/nvd
- usn.ubuntu.com/3583-1/nvd
- usn.ubuntu.com/3583-2/nvd
News mentions
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