EUVD-2026-59040 · Published Aug 15, 2026
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.
References
- https://git.kernel.org/stable/c/1c6e186c722cfa9a58ebe841f91ab2ddf8570cc7
- https://git.kernel.org/stable/c/2c007acf7b31c39c08ce4959451ad00b19be4c1f
- https://git.kernel.org/stable/c/62cf39a9770a6f29df59fd0edb0a05234a8b07f2
- https://git.kernel.org/stable/c/747eaead2db298abfda2aa505f6d03775b40fe5f
- https://git.kernel.org/stable/c/9b871369cbb4532f6715e044d6b9c4ceb036e5b6
- https://git.kernel.org/stable/c/cf97ea7b164a1881c7219f5222219c9d0fac4204
Potentially impacted assets
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