CVE-2026-23216 (GCVE-0-2026-23216)
Vulnerability from cvelistv5 – Published: 2026-02-18 14:21 – Updated: 2026-02-18 14:21
VLAI?
Title
scsi: target: iscsi: Fix use-after-free in iscsit_dec_conn_usage_count()
Summary
In the Linux kernel, the following vulnerability has been resolved:
scsi: target: iscsi: Fix use-after-free in iscsit_dec_conn_usage_count()
In iscsit_dec_conn_usage_count(), the function calls complete() while
holding the conn->conn_usage_lock. As soon as complete() is invoked, the
waiter (such as iscsit_close_connection()) may wake up and proceed to free
the iscsit_conn structure.
If the waiter frees the memory before the current thread reaches
spin_unlock_bh(), it results in a KASAN slab-use-after-free as the function
attempts to release a lock within the already-freed connection structure.
Fix this by releasing the spinlock before calling complete().
Severity ?
No CVSS data available.
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Linux | Linux |
Affected:
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ba684191437380a07b27666eb4e72748be1ea201
(git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 8518f072fc92921418cd9ed4268dd4f3e9a8fd75 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 275016a551ba1a068a3bd6171b18611726b67110 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 73b487d44bf4f92942629d578381f89c326ff77f (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 48fe983e92de2c59d143fe38362ad17ba23ec7f3 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 3835e49e146a4e6e7787b29465f1a23379b6ec44 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 9411a89e9e7135cc459178fa77a3f1d6191ae903 (git) |
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"title": "scsi: target: iscsi: Fix use-after-free in iscsit_dec_conn_usage_count()",
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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