CVE-2026-80691

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux394f811848827ad23d2b43e94e5d72a24cfbc39f < 3c60a8b4037dc35e365658fcbcb349a5d742ff49affected
LinuxLinux394f811848827ad23d2b43e94e5d72a24cfbc39f < a326b19cfb7775378b50acaa8d836ba44e29b4c2affected
LinuxLinux394f811848827ad23d2b43e94e5d72a24cfbc39f < bdd8a1297ef101bb5ac57e53b4fbe5e364afd8b1affected
LinuxLinux394f811848827ad23d2b43e94e5d72a24cfbc39f < f15bcf9a99b1b2683fcfa005b9b3680b5600581faffected
LinuxLinux394f811848827ad23d2b43e94e5d72a24cfbc39f < 9c33222bd387312874fbe36ca8002e5c945b9653affected
LinuxLinux6.5affected
LinuxLinux0 < 6.5unaffected
LinuxLinux6.6.151 <= 6.6.*unaffected
LinuxLinux6.12.103 <= 6.12.*unaffected
LinuxLinux6.18.44 <= 6.18.*unaffected
LinuxLinux7.1.8 <= 7.1.*unaffected
LinuxLinux7.2 <= *unaffected

Weaknesses

References