| 标题 | CVE-2021-3392 - Denial of Service in QEMU virtualisation |
|---|
| 描述 | While processing SCSI i/o requests in mptsas_process_scsi_io_request(),
the Megaraid emulator appends new MPTSASRequest object 'req' to
the 's->pending' queue. In case of an error, this same object gets
dequeued in mptsas_free_request() only if SCSIRequest object
'req->sreq' is initialised. This may lead to a use-after-free issue.
Unconditionally dequeue 'req' object from 's->pending' to avoid it.
Source:
https://bugs.launchpad.net/qemu/+bug/1914236
https://lists.gnu.org/archive/html/qemu-devel/2021-02/msg00488.html |
|---|
| 来源 | ⚠️ https://bugs.launchpad.net/qemu/+bug/1914236 |
|---|
| 用户 | CSieberg (UID 13359) |
|---|
| 提交 | 2021-02-08 11時47分 (5 年前) |
|---|
| 管理 | 2021-02-08 13時08分 (1 hour later) |
|---|
| 状态 | 已接受 |
|---|
| VulDB条目 | 169365 [QEMU 5.2.0 SCSI IO Request mptsas.c mptsas_process_scsi_io_request 内存损坏] |
|---|
| 积分 | 20 |
|---|