CVE-2025-40089
- Source
- https://cve.org/CVERecord?id=CVE-2025-40089
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-40089.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2025-40089
- Downstream
- Related
- Published
- 2025-10-30T09:47:57Z
- Modified
- 2026-08-12T03:30:35Z
- Summary
- cxl/features: Add check for no entries in cxl_feature_info
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
cxl/features: Add check for no entries in cxl_feature_info
cxl EDAC calls cxl_feature_info() to get the feature information and if the hardware has no Features support, cxlfs may be passed in as NULL.
[ 51.957498] BUG: kernel NULL pointer dereference, address: 0000000000000008 [ 51.965571] #PF: supervisor read access in kernel mode [ 51.971559] #PF: error_code(0x0000) - not-present page [ 51.977542] PGD 17e4f6067 P4D 0 [ 51.981384] Oops: Oops: 0000 [#1] SMP NOPTI [ 51.986300] CPU: 49 UID: 0 PID: 3782 Comm: systemd-udevd Not tainted 6.17.0dj test+ #64 PREEMPT(voluntary) [ 51.997355] Hardware name: [ 52.009790] RIP: 0010:cxl_feature_info+0xa/0x80 [cxl_core]
Add a check for cxlfs before dereferencing it and return -EOPNOTSUPP if there is no cxlfs created due to no hardware support.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/40xxx/CVE-2025-40089.json" }- References
-
- https://git.kernel.org/stable/c/a375246fcf2bbdaeb1df7fa7ee5a8b884a89085e
- https://git.kernel.org/stable/c/b8a69e3b1a460bf5d96dd53cbd121aa2cd346886
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/40xxx/CVE-2025-40089.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-40089
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git