Riskcovery

CVE-2026-80691

scsi: target: iblock: Fix wrong PR ops NULL check for PREEMPT/RELEASE

State
Published
Severity
7.5 High
Published
Aug 28, 2026
Updated
Oct 16, 2026
Reserved
Aug 26, 2026

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

scsi: target: iblock: Fix wrong PR ops NULL check for PREEMPT/RELEASE

In the iblock_execute_pr_out() function, PRO_PREEMPT, PRO_PREEMPT_AND_ABORT, and PRO_RELEASE all perform callback capability checks through ops->pr_clear. The error check allows unimplemented hooks to pass through the gate, resulting dereferencing a NULL function pointer.

Check whether the hooks that need to be called are supported.

Scores

CVSSScoreVectorSource
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HLinux

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 394f811848827ad23d2b43e94e5d72a24cfbc39f to before 3c60a8b4037dc35e365658fcbcb349a5d742ff49Affected
  • 394f811848827ad23d2b43e94e5d72a24cfbc39f to before a326b19cfb7775378b50acaa8d836ba44e29b4c2Affected
  • 394f811848827ad23d2b43e94e5d72a24cfbc39f to before bdd8a1297ef101bb5ac57e53b4fbe5e364afd8b1Affected
  • 394f811848827ad23d2b43e94e5d72a24cfbc39f to before f15bcf9a99b1b2683fcfa005b9b3680b5600581fAffected
  • 394f811848827ad23d2b43e94e5d72a24cfbc39f to before 9c33222bd387312874fbe36ca8002e5c945b9653Affected
LinuxLinux
  • 6.5Affected
  • before 6.5Not affected
  • 6.6.151 through 6.6.*Not affected
  • 6.12.103 through 6.12.*Not affected
  • 6.18.44 through 6.18.*Not affected
  • 7.1.8 through 7.1.*Not affected
  • 7.2 and laterNot affected

References

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