CVE-2026-45962
5.5 MEDIUMIn the Linux kernel, the following vulnerability has been resolved: ublk: Validate SQE128 flag before accessing the cmd ublk_ctrl_cmd_d...
Published: 2026-05-27 · Last updated: 2026-06-16
Severity and scoring
- CVSS
- 5.5 MEDIUM
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products
| Vendor | Product |
|---|---|
| linux | linux_kernel |
Description
In the Linux kernel, the following vulnerability has been resolved: ublk: Validate SQE128 flag before accessing the cmd ublk_ctrl_cmd_dump() accesses (header *)sqe->cmd before IO_URING_F_SQE128 flag check. This could cause out of boundary memory access. Move the SQE128 flag check earlier in ublk_ctrl_uring_cmd() to return -EINVAL immediately if the flag is not set.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-45962
- [Patch]https://git.kernel.org/stable/c/17d33ba7291100008360b5a354962db37ad80684
- [Patch]https://git.kernel.org/stable/c/31cac6acf77ece488f29fb8f79589d9298e969c8
- [Patch]https://git.kernel.org/stable/c/4b4dff498f46e9802f71bc84258bf73065f51c6a
- [Patch]https://git.kernel.org/stable/c/da7e4b75e50c087d2031a92f6646eb90f7045a67
- [Patch]https://git.kernel.org/stable/c/dbe8e81a2ec608f87f79a34f6444cd62f6a243bb
- [Patch]https://git.kernel.org/stable/c/f75a5555e0049e7857eae25b60aee98b80e287ec
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