{"id":"CVE-2026-23216","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:\n\nscsi: target: iscsi: Fix use-after-free in iscsit_dec_conn_usage_count()\n\nIn iscsit_dec_conn_usage_count(), the function calls complete() while\nholding the conn->conn_u…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= e48354ce078c079996f89d715dfa44814b4eba01 < ba684191437380a07b27666eb4e72748be1ea201","Linux >= e48354ce078c079996f89d715dfa44814b4eba01 < 8518f072fc92921418cd9ed4268dd4f3e9a8fd75","Linux >= e48354ce078c079996f89d715dfa44814b4eba01 < 275016a551ba1a068a3bd6171b18611726b67110","Linux >= e48354ce078c079996f89d715dfa44814b4eba01 < 73b487d44bf4f92942629d578381f89c326ff77f","Linux >= e48354ce078c079996f89d715dfa44814b4eba01 < 48fe983e92de2c59d143fe38362ad17ba23ec7f3","Linux >= e48354ce078c079996f89d715dfa44814b4eba01 < 3835e49e146a4e6e7787b29465f1a23379b6ec44","Linux >= e48354ce078c079996f89d715dfa44814b4eba01 < 9411a89e9e7135cc459178fa77a3f1d6191ae903","Linux 3.1"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-06-10T20:40:21.955601Z"},"published":"2026-02-18","updated":"2026-10-19","sourceUpdated":"2026-10-19T18:35:39.164Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-23216","references":[{"url":"https://git.kernel.org/stable/c/ba684191437380a07b27666eb4e72748be1ea201"},{"url":"https://git.kernel.org/stable/c/8518f072fc92921418cd9ed4268dd4f3e9a8fd75"},{"url":"https://git.kernel.org/stable/c/275016a551ba1a068a3bd6171b18611726b67110"},{"url":"https://git.kernel.org/stable/c/73b487d44bf4f92942629d578381f89c326ff77f"},{"url":"https://git.kernel.org/stable/c/48fe983e92de2c59d143fe38362ad17ba23ec7f3"},{"url":"https://git.kernel.org/stable/c/3835e49e146a4e6e7787b29465f1a23379b6ec44"},{"url":"https://git.kernel.org/stable/c/9411a89e9e7135cc459178fa77a3f1d6191ae903"}],"tags":["cve.org"],"epss":0.00137,"epssPercentile":0.02781,"ingestedAt":"2026-10-19T19:38:06.500Z","slug":"CVE-2026-23216","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nscsi: target: iscsi: Fix use-after-free in iscsit_dec_conn_usage_count()\n\nIn iscsit_dec_conn_usage_count(), the function calls complete() while\nholding the conn->conn_usage_lock. As soon as complete() is invoked, the\nwaiter (such as iscsit_close_connection()) may wake up and proceed to free\nthe iscsit_conn structure.\n\nIf the waiter frees the memory before the current thread reaches\nspin_unlock_bh(), it results in a KASAN slab-use-after-free as the function\nattempts to release a lock within the already-freed connection structure.\n\nFix this by releasing the spinlock before calling complete().\n\n## Affected\n\n- `Linux >= e48354ce078c079996f89d715dfa44814b4eba01 < ba684191437380a07b27666eb4e72748be1ea201`\n- `Linux >= e48354ce078c079996f89d715dfa44814b4eba01 < 8518f072fc92921418cd9ed4268dd4f3e9a8fd75`\n- `Linux >= e48354ce078c079996f89d715dfa44814b4eba01 < 275016a551ba1a068a3bd6171b18611726b67110`\n- `Linux >= e48354ce078c079996f89d715dfa44814b4eba01 < 73b487d44bf4f92942629d578381f89c326ff77f`\n- `Linux >= e48354ce078c079996f89d715dfa44814b4eba01 < 48fe983e92de2c59d143fe38362ad17ba23ec7f3`\n- `Linux >= e48354ce078c079996f89d715dfa44814b4eba01 < 3835e49e146a4e6e7787b29465f1a23379b6ec44`\n- `Linux >= e48354ce078c079996f89d715dfa44814b4eba01 < 9411a89e9e7135cc459178fa77a3f1d6191ae903`\n- `Linux 3.1`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}