🔴 严重 | CVE-2026-53046 — In the Linux kernel, the following vulnerability has be
🔴 《严重安全漏洞：CVE-2026-53046》
CVSS 评分: 严重（9.8） CVE ID: CVE-2026-53046
漏洞描述
In the Linux kernel, the following vulnerability has been resolved:
ksmbd: fix use-after-free from async crypto on Qualcomm crypto engine
ksmbd_crypt_message() sets a NULL completion callback on AEAD requests
and does not handle the -EINPROGRESS return code from async hardware
crypto engines like the Qualcomm Crypto Engine (QCE). When QCE returns
-EINPROGRESS, ksmbd treats it as an error and immediately frees the
request while the hardware DMA operation is still in flight. The DMA
completion callback then dereferences freed memory, causing a NULL
pointer crash:
pc : qce_skcipher_done+0x24/0x174
lr : vchan_complete+0x230/0x27c
...
el1h_64_irq+0x68/0x6c
ksmbd_free_work_struct+0x20/0x118 [ksmbd]
ksmbd_exit_file_cache+0x694/0xa4c [ksmbd]
Use the standard crypto_wait_req() pattern with crypto_req_done() as
the completion callback, matching the approach used by the SMB client
in fs/smb/client/smb2ops.c. This properly handles both synchronous
engines (immediate return) and async engines (-EINPROGRESS followed
by callback notification).
| 字段 | 值 |
|---|---|
| CVE ID | CVE-2026-53046 |
| CVSS 评分 | 9.8 |
| 严重程度 | 严重 |
| 发布时间 | 2026-06-24 |
| 状态 | Received |
数据来源: NVD | 获取时间: 2026-06-28 18:14