CVE-2026-72082
scsi: elx: efct: Fix refcount leak in efct_hw_io_abort()
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.
INFO
Published Date :
Aug. 15, 2026, 6:21 a.m.
Last Modified :
Aug. 17, 2026, 6:18 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
- Apply the provided patch for the Linux kernel.
- Update the SCSI efct driver in the Linux kernel.
- Ensure reference counts are managed correctly.
- Reset abort flags on error paths.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-72082.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-72082 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-72082
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-72082 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-72082 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 17, 2026
Action Type Old Value New Value Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '63de51327a64c74e85611a0161eaae71256a3b6d', 'lessThan': 'cf97ea7b164a1881c7219f5222219c9d0fac4204', 'versionType': 'git'}, {'status': 'affected', 'version': '63de51327a64c74e85611a0161eaae71256a3b6d', 'lessThan': '1c6e186c722cfa9a58ebe841f91ab2ddf8570cc7', 'versionType': 'git'}, {'status': 'affected', 'version': '63de51327a64c74e85611a0161eaae71256a3b6d', 'lessThan': '62cf39a9770a6f29df59fd0edb0a05234a8b07f2', 'versionType': 'git'}, {'status': 'affected', 'version': '63de51327a64c74e85611a0161eaae71256a3b6d', 'lessThan': 'faa59add4808fbf92e7d15bfd8770d2682c2b953', 'versionType': 'git'}, {'status': 'affected', 'version': '63de51327a64c74e85611a0161eaae71256a3b6d', 'lessThan': '9b871369cbb4532f6715e044d6b9c4ceb036e5b6', 'versionType': 'git'}, {'status': 'affected', 'version': '63de51327a64c74e85611a0161eaae71256a3b6d', 'lessThan': '747eaead2db298abfda2aa505f6d03775b40fe5f', 'versionType': 'git'}, {'status': 'affected', 'version': '63de51327a64c74e85611a0161eaae71256a3b6d', 'lessThan': '2c007acf7b31c39c08ce4959451ad00b19be4c1f', 'versionType': 'git'}], 'programFiles': ['drivers/scsi/elx/efct/efct_hw.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.14'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.14', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc4', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/scsi/elx/efct/efct_hw.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '63de51327a64c74e85611a0161eaae71256a3b6d', 'lessThan': 'cf97ea7b164a1881c7219f5222219c9d0fac4204', 'versionType': 'git'}, {'status': 'affected', 'version': '63de51327a64c74e85611a0161eaae71256a3b6d', 'lessThan': '1c6e186c722cfa9a58ebe841f91ab2ddf8570cc7', 'versionType': 'git'}, {'status': 'affected', 'version': '63de51327a64c74e85611a0161eaae71256a3b6d', 'lessThan': '62cf39a9770a6f29df59fd0edb0a05234a8b07f2', 'versionType': 'git'}, {'status': 'affected', 'version': '63de51327a64c74e85611a0161eaae71256a3b6d', 'lessThan': 'faa59add4808fbf92e7d15bfd8770d2682c2b953', 'versionType': 'git'}, {'status': 'affected', 'version': '63de51327a64c74e85611a0161eaae71256a3b6d', 'lessThan': '9b871369cbb4532f6715e044d6b9c4ceb036e5b6', 'versionType': 'git'}, {'status': 'affected', 'version': '63de51327a64c74e85611a0161eaae71256a3b6d', 'lessThan': '747eaead2db298abfda2aa505f6d03775b40fe5f', 'versionType': 'git'}, {'status': 'affected', 'version': '63de51327a64c74e85611a0161eaae71256a3b6d', 'lessThan': '2c007acf7b31c39c08ce4959451ad00b19be4c1f', 'versionType': 'git'}], 'programFiles': ['drivers/scsi/elx/efct/efct_hw.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.14'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.14', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/scsi/elx/efct/efct_hw.c'], 'defaultStatus': 'affected'}] -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 15, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '63de51327a64c74e85611a0161eaae71256a3b6d', 'lessThan': 'cf97ea7b164a1881c7219f5222219c9d0fac4204', 'versionType': 'git'}, {'status': 'affected', 'version': '63de51327a64c74e85611a0161eaae71256a3b6d', 'lessThan': '1c6e186c722cfa9a58ebe841f91ab2ddf8570cc7', 'versionType': 'git'}, {'status': 'affected', 'version': '63de51327a64c74e85611a0161eaae71256a3b6d', 'lessThan': '62cf39a9770a6f29df59fd0edb0a05234a8b07f2', 'versionType': 'git'}, {'status': 'affected', 'version': '63de51327a64c74e85611a0161eaae71256a3b6d', 'lessThan': 'faa59add4808fbf92e7d15bfd8770d2682c2b953', 'versionType': 'git'}, {'status': 'affected', 'version': '63de51327a64c74e85611a0161eaae71256a3b6d', 'lessThan': '9b871369cbb4532f6715e044d6b9c4ceb036e5b6', 'versionType': 'git'}, {'status': 'affected', 'version': '63de51327a64c74e85611a0161eaae71256a3b6d', 'lessThan': '747eaead2db298abfda2aa505f6d03775b40fe5f', 'versionType': 'git'}, {'status': 'affected', 'version': '63de51327a64c74e85611a0161eaae71256a3b6d', 'lessThan': '2c007acf7b31c39c08ce4959451ad00b19be4c1f', 'versionType': 'git'}], 'programFiles': ['drivers/scsi/elx/efct/efct_hw.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.14'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.14', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc4', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/scsi/elx/efct/efct_hw.c'], 'defaultStatus': 'affected'}] Added 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. Added Reference https://git.kernel.org/stable/c/1c6e186c722cfa9a58ebe841f91ab2ddf8570cc7 Added Reference https://git.kernel.org/stable/c/2c007acf7b31c39c08ce4959451ad00b19be4c1f Added Reference https://git.kernel.org/stable/c/62cf39a9770a6f29df59fd0edb0a05234a8b07f2 Added Reference https://git.kernel.org/stable/c/747eaead2db298abfda2aa505f6d03775b40fe5f Added Reference https://git.kernel.org/stable/c/9b871369cbb4532f6715e044d6b9c4ceb036e5b6 Added Reference https://git.kernel.org/stable/c/cf97ea7b164a1881c7219f5222219c9d0fac4204 Added Reference https://git.kernel.org/stable/c/faa59add4808fbf92e7d15bfd8770d2682c2b953