Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: RDMA/srpt: Fix a use-after-free Change the LIO port members inside struct srpt_port from regular members into pointers. Allocate the LIO port data structures from inside srpt_make_tport() and free these from inside srpt_make_tport(). Keep struct srpt_device as long as either an RDMA port or a LIO target port is associated with it. This patch decouples the lifetime of struct srpt_port (controlled by the RDMA core) and struct srpt_port_id (controlled by LIO). This patch fixes the following KASAN complaint: BUG: KASAN: use-after-free in srpt_enable_tpg+0x31/0x70 [ib_srpt] Read of size 8 at addr ffff888141cc34b8 by task check/5093 Call Trace: <TASK> show_stack+0x4e/0x53 dump_stack_lvl+0x51/0x66 print_address_description.constprop.0.cold+0xea/0x41e print_report.cold+0x90/0x205 kasan_report+0xb9/0xf0 __asan_load8+0x69/0x90 srpt_enable_tpg+0x31/0x70 [ib_srpt] target_fabric_tpg_base_enable_store+0xe2/0x140 [target_core_mod] configfs_write_iter+0x18b/0x210 new_sync_write+0x1f2/0x2f0 vfs_write+0x3e3/0x540 ksys_write+0xbb/0x140 __x64_sys_write+0x42/0x50 do_syscall_64+0x34/0x80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 </TASK>
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected a42d985bd5b234da8b61347a78dc3057bf7bb94d before de95b52d9aabc979166aba81ccbe623aaf9c16a1; affected a42d985bd5b234da8b61347a78dc3057bf7bb94d before e60d7e2462bf57273563c4e00dbfa79ee973b9e2; affected a42d985bd5b234da8b61347a78dc3057bf7bb94d before 4ee8c39968a648d58b273582d4b021044a41ee5e; affected a42d985bd5b234da8b61347a78dc3057bf7bb94d before 388326bb1c32fcd09371c1d494af71471ef3a04b; affected a42d985bd5b234da8b61347a78dc3057bf7bb94d before b5605148e6ce36bb21020d49010b617693933128 |
| Linux / Linux | affected 3.3; unaffected 0 before 3.3; unaffected 5.10.137 through 5.10.*; unaffected 5.15.61 through 5.15.*; unaffected 5.18.18 through 5.18.*; unaffected 5.19.2 through 5.19.*; unaffected 6.0 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/de95b52d9aabc979166aba81ccbe623aaf9c16a1
- https://git.kernel.org/stable/c/e60d7e2462bf57273563c4e00dbfa79ee973b9e2
- https://git.kernel.org/stable/c/4ee8c39968a648d58b273582d4b021044a41ee5e
- https://git.kernel.org/stable/c/388326bb1c32fcd09371c1d494af71471ef3a04b
- https://git.kernel.org/stable/c/b5605148e6ce36bb21020d49010b617693933128