CVE-2026-90009
- Source
- https://cve.org/CVERecord?id=CVE-2026-90009
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90009.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-90009
- Downstream
- Published
- 2026-09-16T10:33:17Z
- Modified
- 2026-09-18T03:48:34Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- scsi: bsg: Fix TOCTOU in io_uring passthrough command setup
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
scsi: bsg: Fix TOCTOU in io_uring passthrough command setup
scsi_bsg_uring_cmd() reads bsg_uring_cmd from the shared mmap'd SQE. Userspace can change a field after we check it and before we use it. request_len is the sharp case: it can grow past sizeof(scmd->cmnd) after the bound check and overflow scmd->cmnd in copy_from_user().
READ_ONCE() the SQE fields we check or use into locals before use.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90009.json" }- References
-
- https://git.kernel.org/stable/c/4b3c5965fca99f62d31c963294bd5b23cc488e97
- https://git.kernel.org/stable/c/f033530105aa73d82c121d54b57f358e4865d2f4
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90009.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-90009
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git