CVE-2026-53042
- Source
- https://cve.org/CVERecord?id=CVE-2026-53042
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53042.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-53042
- Downstream
- Published
- 2026-06-24T16:29:48.273Z
- Modified
- 2026-07-16T03:30:49.844732458Z
- Summary
- fwctl: Fix class init ordering to avoid NULL pointer dereference on device removal
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
fwctl: Fix class init ordering to avoid NULL pointer dereference on device removal
CXL is linked before fwctl in drivers/Makefile. Both use
module_init, socxlpcidriverinit()runs first. Whencxlpciprobe()callsfwctlregister()and thendeviceadd(), fwctl_class is not yet registered because fwctl_init() hasn't run, causingclasstosubsys()` to return NULL and skip knodeclass initialization.On device removal,
class_to_subsys()returns non-NULL, anddevice_del()callsklist_del()on the uninitialized knode, triggering a NULL pointer dereference. - Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53042.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/stable/c/1075f2f590fdac147f8b8010c35b606564b5c7d7
- https://git.kernel.org/stable/c/a28f56988c8e5bb9375806a5cfb0bf54d662ae3f
- https://git.kernel.org/stable/c/a55f80233f384dc89ef3425b2e1dd0e6d44bcf29
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53042.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-53042
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git