EUVD-2026-32246
GHSA-6w6r-q9pw-cwq6
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2DescriptionNVD
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.
Analysis
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. …
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