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CVE-2023-54184

scsi: target: iscsit: Free cmds before session free PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsit: Free cmds before session free Commands from recovery entries are freed after session has been closed. That leads to use-after-free at command free or NPE with such call trace: Time2Retain timer expired for SID: 1, cleaning up iSCSI session. BUG: kernel NULL pointer dereference, address: 0000000000000140 RIP: 0010:sbitmap_queue_clear+0x3a/0xa0 Call Trace: target_release_cmd_kref+0xd1/0x1f0 [target_core_mod] transport_generic_free_cmd+0xd1/0x180 [target_core_mod] iscsit_free_cmd+0x53/0xd0 [iscsi_target_mod] iscsit_free_connection_recovery_entries+0x29d/0x320 [iscsi_target_mod] iscsit_close_session+0x13a/0x140 [iscsi_target_mod] iscsit_check_post_dataout+0x440/0x440 [iscsi_target_mod] call_timer_fn+0x24/0x140 Move cleanup of recovery enrties to before session freeing.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 988e3a85463d9b6dabc681df3f8f131b23c19953 before 89f5055f9b0b57c7e7f02e32df95ef401f809b71; affected 988e3a85463d9b6dabc681df3f8f131b23c19953 before 4621e24c9257c6379343bf0c11b473817cf7edcd; affected 988e3a85463d9b6dabc681df3f8f131b23c19953 before 1911cca5916b6e106de7afa3ec0a38447158216c; affected 988e3a85463d9b6dabc681df3f8f131b23c19953 before a7a4def6c7046e090bb10c6d550fdeb487db98ba; affected 988e3a85463d9b6dabc681df3f8f131b23c19953 before 4ce221d295f53e6c6b835ab33181e735482c9aac; affected 988e3a85463d9b6dabc681df3f8f131b23c19953 before d8990b5a4d065f38f35d69bcd627ec5a7f8330ca
Linux / Linuxaffected 3.12; unaffected 0 before 3.12; unaffected 5.4.244 through 5.4.*; unaffected 5.10.181 through 5.10.*; unaffected 5.15.113 through 5.15.*; unaffected 6.1.30 through 6.1.*; unaffected 6.3.4 through 6.3.*; unaffected 6.4 through *

CWE

No CWE identifiers supplied.

References