CVE-2026-23216

Advisory lineage Upstream: 0 Downstream: 28
Analyzed
Published: 18 Feb 2026, 14:21
Last modified:11 Jun 2026, 17:53

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.8 HIGH
v3.1 (nvd)
EPSS Score
0.12% LOW
0% probability +0.10%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

18 Feb 2026, 14:21
Published
Vulnerability first disclosed
11 Jun 2026, 17:53
Last Modified
Vulnerability information updated

Description

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().

CVSS Metrics

  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Trends

Current EPSS score: 0.12%• Percentile: 2%

Techniques & Countermeasures

  • CWE-416•Use After Free

    The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Affected Systems

  • linux•linux

    ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < ba684191437380a07b27666eb4e72748be1ea201 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 8518f072fc92921418cd9ed4268dd4f3e9a8fd75 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 275016a551ba1a068a3bd6171b18611726b67110 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 73b487d44bf4f92942629d578381f89c326ff77f | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 48fe983e92de2c59d143fe38362ad17ba23ec7f3 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 3835e49e146a4e6e7787b29465f1a23379b6ec44 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 9411a89e9e7135cc459178fa77a3f1d6191ae903 | ≥ e48354ce078c079996f89d715dfa44814b4eba01, < ba684191437380a07b27666eb4e72748be1ea201 | ≥ e48354ce078c079996f89d715dfa44814b4eba01, < 8518f072fc92921418cd9ed4268dd4f3e9a8fd75 | ≥ e48354ce078c079996f89d715dfa44814b4eba01, < 275016a551ba1a068a3bd6171b18611726b67110 | ≥ e48354ce078c079996f89d715dfa44814b4eba01, < 73b487d44bf4f92942629d578381f89c326ff77f | ≥ e48354ce078c079996f89d715dfa44814b4eba01, < 48fe983e92de2c59d143fe38362ad17ba23ec7f3 | ≥ e48354ce078c079996f89d715dfa44814b4eba01, < 3835e49e146a4e6e7787b29465f1a23379b6ec44 | ≥ e48354ce078c079996f89d715dfa44814b4eba01, < 9411a89e9e7135cc459178fa77a3f1d6191ae903 | 3.1

  • linux•linux_kernel

    ≥ 3.1, < 5.10.250 | ≥ 5.11, < 5.15.200 | ≥ 5.16, < 6.1.163 | ≥ 6.2, < 6.6.124 | ≥ 6.7, < 6.12.70 | ≥ 6.13, < 6.18.10 | 6.19:rc1 | 6.19:rc2 | 6.19:rc3 | 6.19:rc4 | 6.19:rc5 | 6.19:rc6

References (7)