CVE-2026-45975
- Source
- https://cve.org/CVERecord?id=CVE-2026-45975
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45975.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-45975
- Downstream
- Published
- 2026-05-27T12:18:33.939Z
- Modified
- 2026-07-08T08:13:32.222338818Z
- Summary
- ublk: use READ_ONCE() to read struct ublksrv_ctrl_cmd
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
ublk: use READONCE() to read struct ublksrvctrl_cmd
struct ublksrvctrlcmd is part of the iouringsqe, which may lie in userspace-mapped memory. It's racy to access its fields with normal loads, as userspace may write to them concurrently. Use READONCE() to copy the ublksrvctrlcmd from the iouringsqe to the stack. Use the local copy in place of the one in the iouring_sqe.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45975.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/stable/c/ce63eda3e6d36e2c253febee1c8421ecbd1a680e
- https://git.kernel.org/stable/c/ed9f54cc1e335096733aed03c2a46de3d58922ed
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45975.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-45975
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git