drm/ttm: Avoid NULL pointer deref for evicted BOs
In the Linux kernel, the following vulnerability has been resolved: drm/ttm: Avoid NULL pointer deref for evicted BOs It is possible for a BO to exist that is not currently associated with a resource, e.g. because it has been evicted. When devcoredump tries to read the contents of all BOs for dumping, we need to expect this as well -- in this case, ENODATA is recorded instead of the buffer contents.
- Published
- Jan 13, 2026
- Updated
- Jun 17, 2026
- EPSS
- 0.1% · 2th percentile
- CWE
- CWE-476
Sign in to follow · You’ll be notified if a followed record enters KEV, gets an exploit or is updated.
Report tools
Action score
22
Monitor
Low priority for now.
- CVSS
- 22 / 40 · 5.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.1%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| linux | linux kernel | cpe:2.3:o:linux:linux_kernel |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- linux linux kernel4.14.1 and later · before 5.15.198
- linux linux kernel5.16 and later · before 6.1.160
- linux linux kernel6.2 and later · before 6.6.120
- linux linux kernel6.7 and later · before 6.12.64
- linux linux kernel6.13 and later · before 6.18.4
- linux linux kernel4.14
- linux linux kernel6.19
Versions reported by the vendor
Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.
Linux Linux
- 4.14affected
- 09ac4fcb3f255e9225967c75f5893325c116cdbe and later · before 47a85604a761005d255ae38115ee630cc6931756affected · git
- 09ac4fcb3f255e9225967c75f5893325c116cdbe and later · before 4b9944493c6d92d7b29cfd83aaf3deb842b8da79affected · git
- 09ac4fcb3f255e9225967c75f5893325c116cdbe and later · before 3d004f7341d4898889801ebb2ef61ffca610dd6faffected · git
- 09ac4fcb3f255e9225967c75f5893325c116cdbe and later · before 5a81095d3e1b521ac7cfe3b14d5f149bace3d6e0affected · git
- 09ac4fcb3f255e9225967c75f5893325c116cdbe and later · before b94182b3d7228aec18d069cba56d5982e9bfe1b1affected · git
- 09ac4fcb3f255e9225967c75f5893325c116cdbe and later · before 491adc6a0f9903c32b05f284df1148de39e8e644affected · git
- before 4.14not affected · semver
- 5.15.198 and later · up to and including 5.15.*not affected · semver
- 6.1.160 and later · up to and including 6.1.*not affected · semver
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | linux | before 6.1.162-1 | 6.1.162-1 |
| Debian:13 | linux | before 6.12.69-1 | 6.12.69-1 |
| Debian:14 | linux | before 6.18.5-1 | 6.18.5-1 |
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 |
|---|---|---|
| Linux Linux | 3d004f7341d4898889801ebb2ef61ffca610dd6f | Vendor (CNA) |
| Linux Linux | 47a85604a761005d255ae38115ee630cc6931756 | Vendor (CNA) |
| Linux Linux | 491adc6a0f9903c32b05f284df1148de39e8e644 | Vendor (CNA) |
| Linux Linux | 4b9944493c6d92d7b29cfd83aaf3deb842b8da79 | Vendor (CNA) |
| Linux Linux | 5a81095d3e1b521ac7cfe3b14d5f149bace3d6e0 | Vendor (CNA) |
| Linux Linux | b94182b3d7228aec18d069cba56d5982e9bfe1b1 | Vendor (CNA) |
| azl3 kernel 6.6.119.3-3 on Azure Linux 3.0 | 6.6.121.1-1 · CBL-Mariner Releases | Microsoft (MSRC) |
| debian:linux | 6.1.162-1 · Debian:12 | Package registry (OSV) |
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.
No commit or PR link among the references.
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
- Someone with local access to the system can trigger it.
- A low-privileged account is enough.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
CWE-476 · NULL Pointer DereferenceCVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
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
- git.kernel.org/stable/c/3d004f7341d4898889801ebb2ef61ffca610dd6f
- git.kernel.org/stable/c/47a85604a761005d255ae38115ee630cc6931756
- git.kernel.org/stable/c/491adc6a0f9903c32b05f284df1148de39e8e644
- git.kernel.org/stable/c/4b9944493c6d92d7b29cfd83aaf3deb842b8da79
- git.kernel.org/stable/c/5a81095d3e1b521ac7cfe3b14d5f149bace3d6e0
- git.kernel.org/stable/c/b94182b3d7228aec18d069cba56d5982e9bfe1b1
Vendor advisories and official records. Exploit/PoC links are deliberately left out.