Riskcovery

CVE-2026-45962

ublk: Validate SQE128 flag before accessing the cmd

State
Published
Severity
Not scored
Published
May 27, 2026
Updated
May 27, 2026
Reserved
May 13, 2026

Read the record on cve.org

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 71f28f3136aff5890cd56de78abc673f8393cad9 to before 4b4dff498f46e9802f71bc84258bf73065f51c6aAffected
  • 71f28f3136aff5890cd56de78abc673f8393cad9 to before 31cac6acf77ece488f29fb8f79589d9298e969c8Affected
  • 71f28f3136aff5890cd56de78abc673f8393cad9 to before dbe8e81a2ec608f87f79a34f6444cd62f6a243bbAffected
  • 71f28f3136aff5890cd56de78abc673f8393cad9 to before f75a5555e0049e7857eae25b60aee98b80e287ecAffected
  • 71f28f3136aff5890cd56de78abc673f8393cad9 to before 17d33ba7291100008360b5a354962db37ad80684Affected
  • 71f28f3136aff5890cd56de78abc673f8393cad9 to before da7e4b75e50c087d2031a92f6646eb90f7045a67Affected
LinuxLinux
  • 6.0Affected
  • before 6.0Not affected
  • 6.1.165 through 6.1.*Not affected
  • 6.6.128 through 6.6.*Not affected
  • 6.12.75 through 6.12.*Not affected
  • 6.18.14 through 6.18.*Not affected
  • 6.19.4 through 6.19.*Not affected
  • 7.0 and laterNot affected

References

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