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Linux KernelOperating system · Linux

CVE-2024-46896

MEDIUM · 5.5 CVSS v3.1 Published 2025-01-11
Fix available
A fix is available. Upgrade to 6.1.122 / 6.6.68 or later.
See remediation →
57/100
Remediation priority · Elevated
Zero-click Patch available

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: don't access invalid sched Since 2320c9e6a768 ("drm/sched: memset() 'job' in drm_sched_job_init()") accessing job->base.sched can produce unexpected results as the initialisation of (*job)->base.sched done in amdgpu_job_alloc is overwritten by the memset. This commit fixes an issue when a CS would fail validation and would be rejected after job->num_ibs is incremented. In this case, amdgpu_ib_free(ring->adev, ...) will be called, which would crash the machine because the ring value is bogus. To fix this, pass a NULL pointer to amdgpu_ib_free(): we can do this because the device is actually not used in this function. The next commit will remove the ring argument completely. (cherry picked from commit 2ae520cb12831d264ceb97c61f72c59d33c0dbd7)

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis
How this class of weakness works · CWE-476

The code follows a pointer that is null, crashing the process. An attacker who can reliably trigger it turns the crash into a denial of service. The fix is checking for null before use and handling the failure path gracefully.

General guidance for the null pointer dereference class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Linux KernelOperating system
Affected:>= 6.1.120, < 6.1.122>= 6.6.66, < 6.6.68>= 6.12.5, < 6.12.7= 6.13

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 6.1.122 / 6.6.68 / 6.12.7 or later
Fixed in 6.1.1226.6.686.12.7
Vendor patch git.kernel.org →
Recommended fix High confidence

6.1.122 (for 6.1.x) or 6.6.68 (for 6.6.x) or 6.12.7 (for 6.12.x) or latest stable after 6.13

  1. Identify the currently running kernel version using 'uname -r'
  2. Determine which version range your current kernel falls into (6.1.120-6.1.121, 6.6.66-6.6.67, 6.12.5-6.12.6, or 6.13)
  3. Update the system package repository metadata
  4. Upgrade the Linux kernel package to the fixed version: For 6.1.x systems: upgrade to 6.1.122; For 6.6.x systems: upgrade to 6.6.68; For 6.12.x systems: upgrade to 6.12.7; For 6.13 systems: upgrade to a version after 6.13 (or the latest stable 6.13.x release)
  5. Reboot the system to load the new kernel
  6. Verify the new kernel version is running with 'uname -r'
  7. Confirm the fix is applied by checking that the patch commit 65501a4fd84ecdc0af863dbb37759242aab9f2dd is included
Caveat Standard kernel upgrade风险较低，但建议在非生产环境测试后再部署到生产环境

Generated from the published advisory — verify against the referenced sources before acting.

We can perform the upgrade in your staging environment and verify nothing breaks — typical engagement from $2,850. Get the upgrade done

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-46896 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
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  • Version or environment caveats, and links to real fixes
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