Security readout for executives and security teams
Plain-English summary
CVE-2024-53090 is a Linux kernel availability flaw in AFS/RXRPC handling. Under specific local conditions, a low-privileged user could trigger a kernel spinlock recursion and crash-like failure. The sources show no confidentiality or integrity impact and no KEV-listed exploitation.
Executive priority
Treat as a scheduled but important kernel maintenance item. It is not evidenced as actively exploited, but it can affect availability on shared Linux systems. Prioritize exposed multi-user servers and align remediation with normal kernel patch cycles unless local risk is elevated.
Technical view
The flaw is lock recursion in afs_wake_up_async_call(). It can be called while AF_RXRPC holds notify_lock, then release an extra afs_call reference through afs_put_call(), which may re-enter rxrpc_kernel_shutdown_call() and try to take notify_lock again. The reported failure is a spinlock recursion oops. CWE-674 applies.
Likely exposure
Exposure is most relevant to Linux systems running affected kernel versions where AFS/RXRPC code is present and reachable. The provided data lists Linux kernel versions including 4.15 through 6.12 and 6.11.9 as affected, but does not map distributions or package versions.
Exploitation context
The CVSS vector is local, low complexity, low privileges, no user interaction, with high availability impact only. The bundle does not cite active exploitation, public exploit availability, or remote attack paths. KEV status is false.
Researcher notes
Evidence is limited to the CVE description, CVSS data, affected version metadata, and Linux stable commit references. The source bundle does not provide exploit proofs, distro package mappings, operational workarounds, or evidence of in-the-wild exploitation.
Mitigation direction
- Apply Linux kernel or distribution updates containing the referenced stable fixes.
- Prioritize multi-user Linux systems where local users can access affected kernel functionality.
- Check vendor guidance if immediate patching is not possible.
- Reboot into the fixed kernel after updating.
- Track distribution advisories for backported fixes and package-specific version mapping.
Validation and detection
- Inventory Linux kernel versions across affected systems.
- Verify the running kernel includes a vendor fix or referenced stable commit.
- Confirm whether AFS/RXRPC kernel support is present, loaded, or operationally required.
- Review kernel logs for spinlock recursion or oops entries mentioning afs or rxrpc.
- After patching, confirm systems booted into the updated kernel.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-674: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2024-53090 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H1.83.6CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
5.5MediumVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://git.kernel.org/stable/c/d7cbf81df996b1eae2dee8deb6df08e2eba78661CVE reference, Linux
- https://git.kernel.org/stable/c/610a79ffea02102899a1373fe226d949944a7ed6CVE reference, Linux
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Uncontrolled Recursion
Uncontrolled Recursion represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.