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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-45962

ublk: Validate SQE128 flag before accessing the cmd

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 71f28f3136aff5890cd56de78abc673f8393cad9 to < 4b4dff498f46e9802f71bc84258bf73065f51c6aaffected
  • 71f28f3136aff5890cd56de78abc673f8393cad9 to < 31cac6acf77ece488f29fb8f79589d9298e969c8affected
  • 71f28f3136aff5890cd56de78abc673f8393cad9 to < dbe8e81a2ec608f87f79a34f6444cd62f6a243bbaffected
  • 71f28f3136aff5890cd56de78abc673f8393cad9 to < f75a5555e0049e7857eae25b60aee98b80e287ecaffected
  • 71f28f3136aff5890cd56de78abc673f8393cad9 to < 17d33ba7291100008360b5a354962db37ad80684affected
  • 71f28f3136aff5890cd56de78abc673f8393cad9 to < da7e4b75e50c087d2031a92f6646eb90f7045a67affected

Linux Linux

Default version status: affected

  • 6.0affected
  • 0 to < 6.0unaffected
  • 6.1.165 to ≤ 6.1.*unaffected
  • 6.6.128 to ≤ 6.6.*unaffected
  • 6.12.75 to ≤ 6.12.*unaffected
  • 6.18.14 to ≤ 6.18.*unaffected
  • 6.19.4 to ≤ 6.19.*unaffected
  • 7.0 to ≤ *unaffected

References