scsi: elx: efct: Fix refcount leak in efct_hw_io_abort()
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
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- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from CNA.
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.15.212, 6.1.178, 6.6.145, 6.12.97, 6.18.40, 7.1.5, 7.2
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 5 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2026-72082
- 2026-10-03 Alias added: GHSA-mfvg-9fxc-6x5q
References
Other 7
- https://git.kernel.org/stable/c/cf97ea7b164a1881c7219f5222219c9d0fac4204
- https://git.kernel.org/stable/c/1c6e186c722cfa9a58ebe841f91ab2ddf8570cc7
- https://git.kernel.org/stable/c/62cf39a9770a6f29df59fd0edb0a05234a8b07f2
- https://git.kernel.org/stable/c/faa59add4808fbf92e7d15bfd8770d2682c2b953
- https://git.kernel.org/stable/c/9b871369cbb4532f6715e044d6b9c4ceb036e5b6
- https://git.kernel.org/stable/c/747eaead2db298abfda2aa505f6d03775b40fe5f
- https://git.kernel.org/stable/c/2c007acf7b31c39c08ce4959451ad00b19be4c1f
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Sources
- CVE-2026-72082 · CVE Program
- CVE-2026-72082 · NVD
- FIRST EPSS
- GHSA-mfvg-9fxc-6x5q · GitHub Advisory Database · CC BY 4.0
- CVE-2026-72082 · Red Hat security data · CC BY 4.0
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