CVE-2026-72082

Summary

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

scsi: elx: efct: Fix refcount leak in efct_hw_io_abort()

When efct_hw_reqtag_alloc() fails in efct_hw_io_abort(), the error path returns -ENOSPC without releasing the reference obtained via kref_get_unless_zero() earlier in the function. All other error paths correctly drop the reference. This causes a permanent reference leak on the io_to_abort object.

Additionally, the abort_in_progress flag is left set to true on this path, which means future abort attempts for the same I/O will immediately return -EINPROGRESS even though the abort was never submitted, effectively blocking recovery.

Fix this by adding the missing kref_put() call and reset abort_in_progress to false, matching the cleanup done in the efct_hw_wq_write() failure path below.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux63de51327a64c74e85611a0161eaae71256a3b6d < cf97ea7b164a1881c7219f5222219c9d0fac4204affected
LinuxLinux63de51327a64c74e85611a0161eaae71256a3b6d < 1c6e186c722cfa9a58ebe841f91ab2ddf8570cc7affected
LinuxLinux63de51327a64c74e85611a0161eaae71256a3b6d < 62cf39a9770a6f29df59fd0edb0a05234a8b07f2affected
LinuxLinux63de51327a64c74e85611a0161eaae71256a3b6d < faa59add4808fbf92e7d15bfd8770d2682c2b953affected
LinuxLinux63de51327a64c74e85611a0161eaae71256a3b6d < 9b871369cbb4532f6715e044d6b9c4ceb036e5b6affected
LinuxLinux63de51327a64c74e85611a0161eaae71256a3b6d < 747eaead2db298abfda2aa505f6d03775b40fe5faffected
LinuxLinux63de51327a64c74e85611a0161eaae71256a3b6d < 2c007acf7b31c39c08ce4959451ad00b19be4c1faffected
LinuxLinux5.14affected
LinuxLinux0 < 5.14unaffected
LinuxLinux5.15.212 <= 5.15.*unaffected
LinuxLinux6.1.178 <= 6.1.*unaffected
LinuxLinux6.6.145 <= 6.6.*unaffected
LinuxLinux6.12.97 <= 6.12.*unaffected
LinuxLinux6.18.40 <= 6.18.*unaffected
LinuxLinux7.1.5 <= 7.1.*unaffected
LinuxLinux7.2 <= *unaffected

Weaknesses

References