An issue was discovered in the Linux kernel before 4.20.
An issue was discovered in the Linux kernel before 4.20. There is a race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c, leading to a use-after-free.
- BDU:2019-02826
- DLA-1884-1
- DLA-1885-1
- DSA-4495-1
- DSA-4497-1
- openSUSE-SU-2019:1716-1
- openSUSE-SU-2019:1757-1
- RHSA-2020:4060
- RHSA-2020:4062
- RHSA-2020:5656
- RHSA-2021:0019
- SUSE-SU-2019:14127-1
- SUSE-SU-2019:1823-1
- SUSE-SU-2019:1823-2
- SUSE-SU-2019:1829-1
- SUSE-SU-2019:1851-1
- SUSE-SU-2019:1852-1
- SUSE-SU-2019:1854-1
- SUSE-SU-2019:1855-1
- SUSE-SU-2019:1870-1
- Published
- May 7, 2019
- Updated
- Jun 16, 2026
- EPSS
- 5.1% · 92th percentile
- CWE
- CWE-362
Sign in to follow · You’ll be notified if a followed record enters KEV, gets an exploit or is updated.
Report tools
Action score
34
Monitor
Low priority for now.
- CVSS
- 32 / 40 · 8.1 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 2 / 30 · 5.1%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| linux | linux kernel | cpe:2.3:o:linux:linux_kernel |
| canonical | ubuntu linux | cpe:2.3:o:canonical:ubuntu_linux |
| debian | debian linux | cpe:2.3:o:debian:debian_linux |
| f5 | traffix signaling delivery controller | cpe:2.3:a:f5:traffix_signaling_delivery_controller |
| netapp | active iq unified manager | cpe:2.3:a:netapp:active_iq_unified_manager |
| netapp | snapprotect | cpe:2.3:a:netapp:snapprotect |
| netapp | solidfire \& hci management node | cpe:2.3:a:netapp:solidfire_\&_hci_management_node |
| netapp | solidfire \& hci storage node | cpe:2.3:a:netapp:solidfire_\&_hci_storage_node |
| netapp | storage replication adapter for clustered data ontap | cpe:2.3:a:netapp:storage_replication_adapter_for_clustered_data_ontap |
| netapp | vasa provider for clustered data ontap | cpe:2.3:a:netapp:vasa_provider_for_clustered_data_ontap |
| netapp | virtual storage console | cpe:2.3:a:netapp:virtual_storage_console |
| netapp | hci compute node | cpe:2.3:h:netapp:hci_compute_node |
and 1 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- canonical ubuntu linux16.04
- debian debian linux10.0
- debian debian linux8.0
- debian debian linux9.0
- f5 traffix signaling delivery controller5.0.0
- f5 traffix signaling delivery controller5.1.0
- linux linux kernelbefore 3.16.72
- linux linux kernel3.17 and later · before 3.18.140
- linux linux kernel3.19 and later · before 4.4.180
- linux linux kernel4.5 and later · before 4.9.175
- linux linux kernel4.10 and later · before 4.14.118
- linux linux kernel4.15 and later · before 4.19.42
- netapp active iq unified manager9.5 and later
- netapp hci compute nodeall versions
- netapp snapprotectall versions
- netapp solidfire & hci management nodeall versions
- netapp solidfire & hci storage nodeall versions
- netapp storage replication adapter for clustered data ontapall versions
- netapp vasa provider for clustered data ontap7.2 and later
- netapp virtual storage console7.2 and later
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:10 | linux | before 4.19.37-5+deb10u2 | 4.19.37-5+deb10u2 |
| Debian:12 | linux | before 5.2.6-1 | 5.2.6-1 |
| Debian:8 | linux | before 3.16.72-1 | 3.16.72-1 |
| Debian:8 | linux-4.9 | before 4.9.168-1+deb9u5~deb8u1 | 4.9.168-1+deb9u5~deb8u1 |
| Debian:9 | linux | before 4.9.168-1+deb9u5 | 4.9.168-1+deb9u5 |
| openSUSE:Leap 15.0 | kernel-debug | before 4.12.14-lp150.12.67.1 | 4.12.14-lp150.12.67.1 |
| openSUSE:Leap 15.0 | kernel-default | before 4.12.14-lp150.12.67.1 | 4.12.14-lp150.12.67.1 |
| openSUSE:Leap 15.0 | kernel-docs | before 4.12.14-lp150.12.67.1 | 4.12.14-lp150.12.67.1 |
| openSUSE:Leap 15.0 | kernel-kvmsmall | before 4.12.14-lp150.12.67.1 | 4.12.14-lp150.12.67.1 |
| openSUSE:Leap 15.0 | kernel-obs-build | before 4.12.14-lp150.12.67.1 | 4.12.14-lp150.12.67.1 |
| openSUSE:Leap 15.0 | kernel-obs-qa | before 4.12.14-lp150.12.67.1 | 4.12.14-lp150.12.67.1 |
| openSUSE:Leap 15.0 | kernel-source | before 4.12.14-lp150.12.67.1 | 4.12.14-lp150.12.67.1 |
| openSUSE:Leap 15.0 | kernel-syms | before 4.12.14-lp150.12.67.1 | 4.12.14-lp150.12.67.1 |
| openSUSE:Leap 15.0 | kernel-vanilla | before 4.12.14-lp150.12.67.1 | 4.12.14-lp150.12.67.1 |
| openSUSE:Leap 15.1 | kernel-debug | before 4.12.14-lp151.28.10.1 | 4.12.14-lp151.28.10.1 |
| openSUSE:Leap 15.1 | kernel-default | before 4.12.14-lp151.28.10.1 | 4.12.14-lp151.28.10.1 |
| openSUSE:Leap 15.1 | kernel-docs | before 4.12.14-lp151.28.10.1 | 4.12.14-lp151.28.10.1 |
| openSUSE:Leap 15.1 | kernel-kvmsmall | before 4.12.14-lp151.28.10.1 | 4.12.14-lp151.28.10.1 |
| openSUSE:Leap 15.1 | kernel-obs-build | before 4.12.14-lp151.28.10.1 | 4.12.14-lp151.28.10.1 |
| openSUSE:Leap 15.1 | kernel-obs-qa | before 4.12.14-lp151.28.10.1 | 4.12.14-lp151.28.10.1 |
| openSUSE:Leap 15.1 | kernel-source | before 4.12.14-lp151.28.10.1 | 4.12.14-lp151.28.10.1 |
| openSUSE:Leap 15.1 | kernel-syms | before 4.12.14-lp151.28.10.1 | 4.12.14-lp151.28.10.1 |
| openSUSE:Leap 15.1 | kernel-vanilla | before 4.12.14-lp151.28.10.1 | 4.12.14-lp151.28.10.1 |
| Red Hat:enterprise_linux:7::client | bpftool | before 0:3.10.0-1160.el7 | 0:3.10.0-1160.el7 |
+96
Same product
linux: all recordsOther highest-scoring records for the same primary product.
- CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV89Now
- CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV85Now
- CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV83Now
- CVE-2019-13272In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to creKEV77This week
- CVE-2013-6282The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addKEV77This week
- CVE-2013-2094The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9 uses an incorrect integer data type, which allows loKEV77This week
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:linux | 5.2.6-1 · Debian:12 | Package registry (OSV) |
| debian:linux-4.9 | 4.9.168-1+deb9u5~deb8u1 · Debian:8 | Package registry (OSV) |
| opensuse:kernel-debug | 4.12.14-lp150.12.67.1 · openSUSE:Leap 15.0 | Package registry (OSV) |
| opensuse:kernel-default | 4.12.14-lp150.12.67.1 · openSUSE:Leap 15.0 | Package registry (OSV) |
| opensuse:kernel-docs | 4.12.14-lp150.12.67.1 · openSUSE:Leap 15.0 | Package registry (OSV) |
| opensuse:kernel-kvmsmall | 4.12.14-lp150.12.67.1 · openSUSE:Leap 15.0 | Package registry (OSV) |
| opensuse:kernel-obs-build | 4.12.14-lp150.12.67.1 · openSUSE:Leap 15.0 | Package registry (OSV) |
| opensuse:kernel-obs-qa | 4.12.14-lp150.12.67.1 · openSUSE:Leap 15.0 | Package registry (OSV) |
| opensuse:kernel-source | 4.12.14-lp150.12.67.1 · openSUSE:Leap 15.0 | Package registry (OSV) |
| opensuse:kernel-syms | 4.12.14-lp150.12.67.1 · openSUSE:Leap 15.0 | Package registry (OSV) |
| opensuse:kernel-vanilla | 4.12.14-lp150.12.67.1 · openSUSE:Leap 15.0 | Package registry (OSV) |
| red hat:bpftool | 0:3.10.0-1160.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:bpftool-debuginfo | 0:3.10.0-1160.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:kernel | 0:3.10.0-1160.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:kernel-abi-whitelists | 0:3.10.0-1160.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:kernel-debug | 0:3.10.0-1160.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:kernel-debug-debuginfo | 0:3.10.0-1160.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:kernel-debug-devel | 0:3.10.0-1160.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:kernel-debuginfo | 0:3.10.0-1160.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:kernel-debuginfo-common-x86_64 | 0:3.10.0-1160.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:kernel-devel | 0:3.10.0-1160.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:kernel-doc | 0:3.10.0-1160.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:kernel-tools | 0:3.10.0-1160.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| suse:kernel-azure | 4.12.14-5.33.1 · SUSE:Linux Enterprise Module for Public Cloud 15 | Package registry (OSV) |
| suse:kernel-bigmem | 3.0.101-108.98.1 · SUSE:Linux Enterprise Server 11 SP4-LTSS | Package registry (OSV) |
| suse:kernel-default | 3.0.101-108.98.1 · SUSE:Linux Enterprise Server 11 SP4-LTSS | Package registry (OSV) |
| suse:kernel-ec2 | 3.0.101-108.98.1 · SUSE:Linux Enterprise Server 11 SP4-LTSS | Package registry (OSV) |
| suse:kernel-pae | 3.0.101-108.98.1 · SUSE:Linux Enterprise Server 11 SP4-LTSS | Package registry (OSV) |
| suse:kernel-ppc64 | 3.0.101-108.98.1 · SUSE:Linux Enterprise Server 11 SP4-LTSS | Package registry (OSV) |
| suse:kernel-source | 3.0.101-108.98.1 · SUSE:Linux Enterprise Server 11 SP4-LTSS | Package registry (OSV) |
+5
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- Special conditions such as timing or configuration are required.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- High
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
ATT&CK techniques
—
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- lists.opensuse.org/opensuse-security-announce/2019-07/msg00014.html
- lists.opensuse.org/opensuse-security-announce/2019-07/msg00025.html
- www.securityfocus.com/bid/108196
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b90cd6f2b905905fb42671009dc0e27c310a16ae
- github.com/torvalds/linux/commit/b90cd6f2b905905fb42671009dc0e27c310a16ae
- lists.debian.org/debian-lts-announce/2019/08/msg00016.html
- lists.debian.org/debian-lts-announce/2019/08/msg00017.html
- seclists.org/bugtraq/2019/Aug/13
- seclists.org/bugtraq/2019/Aug/18
- security.netapp.com/advisory/ntap-20190719-0003/
- support.f5.com/csp/article/K11225249
- usn.ubuntu.com/4076-1/
- www.debian.org/security/2019/dsa-4495
- www.debian.org/security/2019/dsa-4497
Vendor advisories and official records. Exploit/PoC links are deliberately left out.