Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected e48354ce078c079996f89d715dfa44814b4eba01 before 2b64015550a13bcc72910be0565548d9a754d46d; affected e48354ce078c079996f89d715dfa44814b4eba01 before fd8b0900173307039d3a84644c2fee041a7ed4fb; affected e48354ce078c079996f89d715dfa44814b4eba01 before d8dbdc146e9e9a976931b78715be2e91299049f9; affected e48354ce078c079996f89d715dfa44814b4eba01 before 11ebafffce31efc6abeb28c509017976fc49f1ca; affected e48354ce078c079996f89d715dfa44814b4eba01 before 41b86a9ec037bd3435d68dd3692f0891a207e7e7; affected e48354ce078c079996f89d715dfa44814b4eba01 before 4530f4e4d0e6a207110b0ffed0c911bca43531a4; affected e48354ce078c079996f89d715dfa44814b4eba01 before 84dc6037390b8607c5551047d3970336cb51ba9a |
| Linux / Linux | affected 3.1; unaffected 0 before 3.1; unaffected 5.10.250 through 5.10.*; unaffected 5.15.200 through 5.15.*; unaffected 6.1.163 through 6.1.*; unaffected 6.6.124 through 6.6.*; unaffected 6.12.70 through 6.12.*; unaffected 6.18.10 through 6.18.*; unaffected 6.19 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/2b64015550a13bcc72910be0565548d9a754d46d
- https://git.kernel.org/stable/c/fd8b0900173307039d3a84644c2fee041a7ed4fb
- https://git.kernel.org/stable/c/d8dbdc146e9e9a976931b78715be2e91299049f9
- https://git.kernel.org/stable/c/11ebafffce31efc6abeb28c509017976fc49f1ca
- https://git.kernel.org/stable/c/41b86a9ec037bd3435d68dd3692f0891a207e7e7
- https://git.kernel.org/stable/c/4530f4e4d0e6a207110b0ffed0c911bca43531a4
- https://git.kernel.org/stable/c/84dc6037390b8607c5551047d3970336cb51ba9a
ADP enrichment
No English description supplied.
No references supplied.