CVE-2026-45962
ublk: Validate SQE128 flag before accessing the cmd
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | May 27, 2026 |
Stay Ahead of the Next One
Get instant alerts for linux linux
Be the first to know when new unknown vulnerabilities affecting linux linux are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
Affected Versions
Linux / Linux
71f28f3136aff5890cd56de78abc673f8393cad9 < 4b4dff498f46e9802f71bc84258bf73065f51c6a 71f28f3136aff5890cd56de78abc673f8393cad9 < 31cac6acf77ece488f29fb8f79589d9298e969c8 71f28f3136aff5890cd56de78abc673f8393cad9 < dbe8e81a2ec608f87f79a34f6444cd62f6a243bb 71f28f3136aff5890cd56de78abc673f8393cad9 < f75a5555e0049e7857eae25b60aee98b80e287ec 71f28f3136aff5890cd56de78abc673f8393cad9 < 17d33ba7291100008360b5a354962db37ad80684 71f28f3136aff5890cd56de78abc673f8393cad9 < da7e4b75e50c087d2031a92f6646eb90f7045a67
Linux / Linux
6.0
References
git.kernel.org: https://git.kernel.org/stable/c/4b4dff498f46e9802f71bc84258bf73065f51c6a git.kernel.org: https://git.kernel.org/stable/c/31cac6acf77ece488f29fb8f79589d9298e969c8 git.kernel.org: https://git.kernel.org/stable/c/dbe8e81a2ec608f87f79a34f6444cd62f6a243bb git.kernel.org: https://git.kernel.org/stable/c/f75a5555e0049e7857eae25b60aee98b80e287ec git.kernel.org: https://git.kernel.org/stable/c/17d33ba7291100008360b5a354962db37ad80684 git.kernel.org: https://git.kernel.org/stable/c/da7e4b75e50c087d2031a92f6646eb90f7045a67