ptrace: slightly saner 'get_dumpable()' logic

Summary

CVECVE-2026-46333
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-15 14:16:35 UTC
Updated2026-07-15 02:22:15 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: ptrace: slightly saner 'get_dumpable()' logic The 'dumpability' of a task is fundamentally about the memory image of the task - the concept comes from whether it can core dump or not - and makes no sense when you don't have an associated mm. And almost all users do in fact use it only for the case where the task has a mm pointer. But we have one odd special case: ptrace_may_access() uses 'dumpable' to check various other things entirely independently of the MM (typically explicitly using flags like PTRACE_MODE_READ_FSCREDS). Including for threads that no longer have a VM (and maybe never did, like most kernel threads). It's not what this flag was designed for, but it is what it is. The ptrace code does check that the uid/gid matches, so you do have to be uid-0 to see kernel thread details, but this means that the traditional "drop capabilities" model doesn't make any difference for this all. Make it all make a *bit* more sense by saying that if you don't have a MM pointer, we'll use a cached "last dumpability" flag if the thread ever had a MM (it will be zero for kernel threads since it is never set), and require a proper CAP_SYS_PTRACE capability to override.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from ADP

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.013800000 probability, percentile 0.687970000 (date 2026-07-04)

Problem Types: CWE-269 | CWE-269 CWE-269 Improper Privilege Management | CWE-269 Improper Privilege Management


VersionSourceTypeScoreSeverityVector
3.1ADPCVSS7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary7.1HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
3.10b0ca135-0b70-47e7-9f44-1890c2a1c46cSecondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED7.1HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected bfedb589252c01fa505ac9f6f2a3d5d68d707ef4 93d4ba49d18e3d7fb41a9927c2d0cca5e9dfefd6 git Not specified
CNA Linux Linux affected bfedb589252c01fa505ac9f6f2a3d5d68d707ef4 15b828a46f305ae9f05a7c16914b3ce273474205 git Not specified
CNA Linux Linux affected bfedb589252c01fa505ac9f6f2a3d5d68d707ef4 4709234fd1b95136ceb789f639b1e7ea5de1b181 git Not specified
CNA Linux Linux affected bfedb589252c01fa505ac9f6f2a3d5d68d707ef4 8f907d345bae8f4b3f004c5abc56bf2dfb851ea7 git Not specified
CNA Linux Linux affected bfedb589252c01fa505ac9f6f2a3d5d68d707ef4 6e5b51e74a40d377bcd3081dd33fbaa0e1aa7e3d git Not specified
CNA Linux Linux affected bfedb589252c01fa505ac9f6f2a3d5d68d707ef4 2a93a4fac7b6051d3be7cd1b015fe7320cd0404d git Not specified
CNA Linux Linux affected bfedb589252c01fa505ac9f6f2a3d5d68d707ef4 01363cb3fbd0238ffdeb09f53e9039c9edf8a730 git Not specified
CNA Linux Linux affected bfedb589252c01fa505ac9f6f2a3d5d68d707ef4 31e62c2ebbfdc3fe3dbdf5e02c92a9dc67087a3a git Not specified
CNA Linux Linux affected d5b3e840dbf6dd2c0f30b5982b6f5ecd49e46b12 git Not specified
CNA Linux Linux affected 03eed7afbc09e061f66b448daf7863174c3dc3f3 git Not specified
CNA Linux Linux affected e45692fa1aea06676449b63ef3c2b6e1e72b7578 git Not specified
CNA Linux Linux affected 694a95fa6dae4991f16cda333d897ea063021fed git Not specified
CNA Linux Linux affected 3.16.52 3.17 semver Not specified
CNA Linux Linux affected 4.4.40 4.5 semver Not specified
CNA Linux Linux affected 4.8.16 4.9 semver Not specified
CNA Linux Linux affected 4.9.1 4.10 semver Not specified
CNA Linux Linux affected 4.10 Not specified
CNA Linux Linux unaffected 4.10 semver Not specified
CNA Linux Linux unaffected 5.10.256 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.207 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.173 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.139 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.89 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.31 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.8 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1 * original_commit_for_fix Not specified
ADP Red Hat NVIDIA For RHEL 10 unaffected 0:6.12.0-211.8.el10nv * rpm Not specified
ADP Red Hat NVIDIA For RHEL 10 unaffected 0:6.12.0-231.12.el10nv * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 10 unaffected 0:6.12.0-211.16.1.el10_2 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support unaffected 0:6.12.0-55.75.1.el10_0 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8 unaffected 0:4.18.0-553.125.1.rt7.466.el8_10 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8 unaffected 0:4.18.0-553.125.1.el8_10 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8 Not specified Not specified
ADP Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support unaffected 0:4.18.0-305.192.1.el8_4 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On unaffected 0:4.18.0-305.192.1.el8_4 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support unaffected 0:4.18.0-372.193.1.el8_6 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service unaffected 0:4.18.0-372.193.1.el8_6 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8.6 Update Services For SAP Solutions unaffected 0:4.18.0-372.193.1.el8_6 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service unaffected 0:4.18.0-477.143.1.el8_8 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8.8 Update Services For SAP Solutions unaffected 0:4.18.0-477.143.1.el8_8 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8.8 Update Services For SAP Solutions Not specified Not specified
ADP Red Hat Red Hat Enterprise Linux 9 unaffected 0:5.14.0-687.10.1.el9_8 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 9.0 Update Services For SAP Solutions unaffected 0:5.14.0-70.180.1.el9_0 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 9.0 Update Services For SAP Solutions unaffected 0:5.14.0-70.180.1.rt21.252.el9_0 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 9.2 Update Services For SAP Solutions unaffected 0:5.14.0-284.172.1.el9_2 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 9.2 Update Services For SAP Solutions unaffected 0:5.14.0-284.172.1.rt14.457.el9_2 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 9.2 Update Services For SAP Solutions Not specified Not specified
ADP Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support unaffected 0:5.14.0-427.126.1.el9_4 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 9.4 Update Services For SAP Solutions Not specified Not specified
ADP Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support unaffected 0:5.14.0-570.116.1.el9_6 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Not specified Not specified
ADP Red Hat Red Hat OpenShift Container Platform 4.20 unaffected 0:1.33.12-3.rhaos4.20.git64c6a00.el9 * rpm Not specified
ADP Red Hat Red Hat OpenShift Container Platform 4.20 unaffected 0:5.14.0-570.117.1.el9_6 * rpm Not specified
ADP Red Hat Red Hat OpenShift Container Platform 4.20 unaffected 0:4.20.0-202605141748.p2.g2a0461f.assembly.stream.el8 * rpm Not specified
ADP Red Hat Red Hat OpenShift Container Platform 4.20 unaffected 0:4.20.0-202605211651.p2.g02b0b2d.assembly.stream.el8 * rpm Not specified
ADP Red Hat Red Hat OpenShift Container Platform 4.20 unaffected 4.20.9.6.202605270908-0 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 6 Not specified Not specified
ADP Red Hat Red Hat Enterprise Linux 7 Not specified Not specified
ADP Red Hat Red Hat Enterprise Linux 7 Not specified Not specified
ADP Red Hat Red Hat OpenShift Container Platform 4 Not specified Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.6 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.6 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.6 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.6 * custom Not specified
ADP Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.6 * custom Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/01363cb3fbd0238ffdeb09f53e9039c9edf8a730 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
access.redhat.com/errata/RHSA-2026:20299 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com Third Party Advisory
www.openwall.com/lists/oss-security/2026/05/20/14 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List
www.openwall.com/lists/oss-security/2026/05/15/9 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List
git.kernel.org/stable/c/2a93a4fac7b6051d3be7cd1b015fe7320cd0404d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
access.redhat.com/errata/RHSA-2026:19568 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com Third Party Advisory
www.openwall.com/lists/oss-security/2026/05/20/16 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List
access.redhat.com/errata/RHSA-2026:19664 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com Third Party Advisory
access.redhat.com/errata/RHSA-2026:21701 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com Third Party Advisory
access.redhat.com/errata/RHSA-2026:23469 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com Third Party Advisory
access.redhat.com/security/cve/CVE-2026-46333 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com Third Party Advisory
access.redhat.com/errata/RHSA-2026:19666 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com Third Party Advisory
access.redhat.com/errata/RHSA-2026:20054 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com Third Party Advisory
git.kernel.org/stable/c/8f907d345bae8f4b3f004c5abc56bf2dfb851ea7 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
access.redhat.com/errata/RHSA-2026:20051 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com Third Party Advisory
access.redhat.com/errata/RHSA-2026:23471 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com Third Party Advisory
access.redhat.com/errata/RHSA-2026:19711 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com Third Party Advisory
git.kernel.org/stable/c/31e62c2ebbfdc3fe3dbdf5e02c92a9dc67087a3a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
access.redhat.com/errata/RHSA-2026:20129 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com Third Party Advisory
access.redhat.com/errata/RHSA-2026:19521 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com Third Party Advisory
lists.debian.org/debian-lts-announce/2026/05/msg00032.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Third Party Advisory
git.kernel.org/stable/c/15b828a46f305ae9f05a7c16914b3ce273474205 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
cert-portal.siemens.com/productcert/html/ssa-019113.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/6e5b51e74a40d377bcd3081dd33fbaa0e1aa7e3d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
access.redhat.com/errata/RHSA-2026:23468 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com Third Party Advisory
access.redhat.com/errata/RHSA-2026:24814 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com Third Party Advisory
access.redhat.com/errata/RHSA-2026:20130 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com Third Party Advisory
git.kernel.org/stable/c/93d4ba49d18e3d7fb41a9927c2d0cca5e9dfefd6 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
bugzilla.redhat.com/show_bug.cgi 0b0ca135-0b70-47e7-9f44-1890c2a1c46c bugzilla.redhat.com Third Party Advisory
access.redhat.com/errata/RHSA-2026:19875 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com Third Party Advisory
access.redhat.com/errata/RHSA-2026:23470 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com Third Party Advisory
access.redhat.com/errata/RHSA-2026:19540 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com Third Party Advisory
lists.debian.org/debian-lts-announce/2026/05/msg00035.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Third Party Advisory
access.redhat.com/errata/RHSA-2026:33486 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:20593 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com Third Party Advisory
github.com/0xdeadbeefnetwork/ssh-keysign-pwn 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com Exploit, Third Party Advisory
security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46333.json 0b0ca135-0b70-47e7-9f44-1890c2a1c46c security.access.redhat.com Product, Third Party Advisory
access.redhat.com/errata/RHSA-2026:19569 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com Third Party Advisory
git.kernel.org/stable/c/4709234fd1b95136ceb789f639b1e7ea5de1b181 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
access.redhat.com/errata/RHSA-2026:19705 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com Third Party Advisory
access.redhat.com/errata/RHSA-2026:21702 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

SourceTimeEvent
ADP2026-05-15T08:27:21.590ZReported to Red Hat.
ADP2026-05-15T05:55:00.000ZMade public.

Solutions

ADP: RHSA-2026:19540: NVIDIA for RHEL 10

ADP: RHSA-2026:33486: NVIDIA for RHEL 10

ADP: RHSA-2026:21701: Red Hat OpenShift Container Platform 4.20

ADP: RHSA-2026:21702: Red Hat OpenShift Container Platform 4.20

ADP: RHSA-2026:20299: Red Hat Enterprise Linux AppStream EUS (v. 10.0), Red Hat Enterprise Linux BaseOS EUS (v. 10.0), Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0), Red Hat Enterprise Linux Real Time EUS (v. 10.0), Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0)

ADP: RHSA-2026:19569: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux BaseOS (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10), Red Hat Enterprise Linux Real Time (v. 10), Red Hat Enterprise Linux Real Time for NFV (v. 10)

ADP: RHSA-2026:19705: Red Hat Enterprise Linux AppStream E4S (v.9.0), Red Hat Enterprise Linux BaseOS E4S (v.9.0)

ADP: RHSA-2026:20593: Red Hat Enterprise Linux AppStream E4S (v.9.2), Red Hat Enterprise Linux BaseOS E4S (v.9.2)

ADP: RHSA-2026:20054: Red Hat CodeReady Linux Builder EUS (v.9.4), Red Hat Enterprise Linux AppStream EUS (v.9.4), Red Hat Enterprise Linux BaseOS EUS (v.9.4), Red Hat Enterprise Linux Real Time EUS (v.9.4), Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4)

ADP: RHSA-2026:20129: Red Hat CodeReady Linux Builder EUS (v.9.6), Red Hat Enterprise Linux AppStream EUS (v.9.6), Red Hat Enterprise Linux BaseOS EUS (v.9.6), Red Hat Enterprise Linux Real Time EUS (v.9.6), Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6)

ADP: RHSA-2026:19568: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux BaseOS (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9), Red Hat Enterprise Linux Real Time (v. 9), Red Hat Enterprise Linux Real Time for NFV (v. 9)

ADP: RHSA-2026:19666: Red Hat Enterprise Linux BaseOS (v. 8), Red Hat Enterprise Linux CRB (v. 8)

ADP: RHSA-2026:23470: Red Hat Enterprise Linux BaseOS (v. 8)

ADP: RHSA-2026:20130: Red Hat Enterprise Linux BaseOS AUS (v.8.4), Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)

ADP: RHSA-2026:20051: Red Hat Enterprise Linux BaseOS AUS (v.8.6), Red Hat Enterprise Linux BaseOS E4S (v.8.6), Red Hat Enterprise Linux BaseOS TUS (v.8.6)

ADP: RHSA-2026:19521: Red Hat Enterprise Linux BaseOS E4S (v.8.8), Red Hat Enterprise Linux BaseOS TUS (v.8.8)

ADP: RHSA-2026:23471: Red Hat Enterprise Linux BaseOS E4S (v.8.8)

ADP: RHSA-2026:23469: Red Hat Enterprise Linux BaseOS E4S (v.9.2)

ADP: RHSA-2026:24814: Red Hat Enterprise Linux BaseOS E4S (v.9.4)

ADP: RHSA-2026:23468: Red Hat Enterprise Linux BaseOS EUS (v.9.6)

ADP: RHSA-2026:19664: Red Hat Enterprise Linux NFV (v. 8), Red Hat Enterprise Linux RT (v. 8)

ADP: RHSA-2026:19711: Red Hat Enterprise Linux NFV E4S (v.9.0), Red Hat Enterprise Linux Real Time E4S (v.9.0)

ADP: RHSA-2026:19875: Red Hat Enterprise Linux Real Time E4S (v.9.2), Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)

Workarounds

ADP: See the security bulletin for a detailed mitigation procedure.

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