CVE-2026-72082

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

N/A
Published: August 15, 2026 at 05:52 AM UTC
Updated: August 17, 2026 at 06:18 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

5.14 ≤ v < 5.15.2125.14 ≤ v < 6.1.1785.14 ≤ v < 6.12.975.14 ≤ v < 6.18.405.14 ≤ v < 6.6.1455.14 ≤ v < 7.1.55.14 ≤ v < 7.25.1463de51327a64c74e85611a0161eaae71256a3b6d
Vendor states this is fixed in 1c6e186c722cfa9a58ebe841f91ab2ddf8570cc7 (fixed)
Vendor states this is fixed in 2c007acf7b31c39c08ce4959451ad00b19be4c1f (fixed)
Vendor states this is fixed in 62cf39a9770a6f29df59fd0edb0a05234a8b07f2 (fixed)
Vendor states this is fixed in 747eaead2db298abfda2aa505f6d03775b40fe5f (fixed)
Vendor states this is fixed in 9b871369cbb4532f6715e044d6b9c4ceb036e5b6 (fixed)
Vendor states this is fixed in cf97ea7b164a1881c7219f5222219c9d0fac4204 (fixed)
Vendor states this is fixed in faa59add4808fbf92e7d15bfd8770d2682c2b953 (fixed)
Vendor states this is fixed in 5.14 (unaffected)
Vendor states this is fixed in 5.15.212 (unaffected)
Vendor states this is fixed in 6.1.178 (unaffected)
Vendor states this is fixed in 6.12.97 (unaffected)
Vendor states this is fixed in 6.18.40 (unaffected)
Vendor states this is fixed in 6.6.145 (unaffected)
Vendor states this is fixed in 7.1.5 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

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