Answer in brief
CVE-2026-23193 records a High severity (CVSS 8.8) vulnerability in scsi: target: iscsi: Fix use-after-free in iscsit_dec_session_usage_count(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=e48354ce078c079996f89d715dfa44814b4eba01 <2b64015550a13bcc72910be0565548d9a754d46d || >=e48354ce078c079996f89d715dfa44814b4eba01 <fd8b0900173307039d3a84644c2fee041a7ed4fb || >=e48354ce078c079996f89d715dfa44814b4eba01 <d8dbdc146e9e9a976931b78715be2e91299049f9 || >=e48354ce078c079996f89d715dfa44814b4eba01 <11ebafffce31efc6abeb28c509017976fc49f1ca || >=e48354ce078c079996f89d715dfa44814b4eba01 <41b86a9ec037bd3435d68dd3692f0891a207e7e7 || >=e48354ce078c079996f89d715dfa44814b4eba01 <4530f4e4d0e6a207110b0ffed0c911bca43531a4 || >=e48354ce078c079996f89d715dfa44814b4eba01 <84dc6037390b8607c5551047d3970336cb51ba9a | 2b64015550a13bcc72910be0565548d9a754d46d, fd8b0900173307039d3a84644c2fee041a7ed4fb, d8dbdc146e9e9a976931b78715be2e91299049f9, 11ebafffce31efc6abeb28c509017976fc49f1ca, 41b86a9ec037bd3435d68dd3692f0891a207e7e7, 4530f4e4d0e6a207110b0ffed0c911bca43531a4, 84dc6037390b8607c5551047d3970336cb51ba9a |
| Linux/Linuxgeneric | 3.1 | Not reported |
Published upstream
Feb 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 19, 2026
In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Fix use-after-free in iscsit_dec_session_usage_count() In iscsit_dec_session_usage_count(), the function calls complete() while holding the sess->session_usage_lock. Similar to the connection usage count logic, the waiter signaled by complete() (e.g., in the session release path) may wake up and free the iscsit_session structure immediately. This creates a race condition where the current thread may attempt to execute spin_unlock_bh() on a session structure that has already been deallocated, resulting in a KASAN slab-use-after-free. To resolve this, release the session_usage_lock before calling complete() to ensure all dereferences of the sess pointer are finished before the waiter is allowed to proceed with deallocation.
Quoted source text, attributed separately from HOL analysis.