CVE-2026-23047— Linux kernel 安全漏洞
一分钟漏洞结论
影响对象
Linux Linux
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于calc_target未正确设置暂停状态，可能导致监视请求无法重新建立。
可能的 ATT&CK 技术 1 AI
T1059 · Command and Scripting Interpreter影响版本矩阵 16
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 922dab6134178cae317ae00de86376cba59f3147< 2b3329b3c29d9e188e40d902d5230c2d5989b940 |
affected |
922dab6134178cae317ae00de86376cba59f3147< 5d0dc83cb9a69c1d0bea58f1c430199b05f6b021 |
affected | ||
922dab6134178cae317ae00de86376cba59f3147< 4d3399c52e0e61720ae898f5a0b5b75d4460ae24 |
affected | ||
922dab6134178cae317ae00de86376cba59f3147< 4ebc711b738d139cabe2fc9e7e7749847676a342 |
affected | ||
922dab6134178cae317ae00de86376cba59f3147< 6f468f6ff233c6a81e0e761d9124e982903fe9a5 |
affected | ||
922dab6134178cae317ae00de86376cba59f3147< 5647d42c47b535573b63e073e91164d6a5bb058c |
affected | ||
922dab6134178cae317ae00de86376cba59f3147< c0fe2994f9a9d0a2ec9e42441ea5ba74b6a16176 |
affected | ||
4.7 |
affected | ||
| … +8 条更多 | |||
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一、 漏洞 CVE-2026-23047 基础信息
漏洞信息
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Vulnerability Title
libceph: make calc_target() set t->paused, not just clear it
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
libceph: make calc_target() set t->paused, not just clear it
Currently calc_target() clears t->paused if the request shouldn't be
paused anymore, but doesn't ever set t->paused even though it's able to
determine when the request should be paused. Setting t->paused is left
to __submit_request() which is fine for regular requests but doesn't
work for linger requests -- since __submit_request() doesn't operate
on linger requests, there is nowhere for lreq->t.paused to be set.
One consequence of this is that watches don't get reestablished on
paused -> unpaused transitions in cases where requests have been paused
long enough for the (paused) unwatch request to time out and for the
subsequent (re)watch request to enter the paused state. On top of the
watch not getting reestablished, rbd_reregister_watch() gets stuck with
rbd_dev->watch_mutex held:
rbd_register_watch
__rbd_register_watch
ceph_osdc_watch
linger_reg_commit_wait
It's waiting for lreq->reg_commit_wait to be completed, but for that to
happen the respective request needs to end up on need_resend_linger list
and be kicked when requests are unpaused. There is no chance for that
if the request in question is never marked paused in the first place.
The fact that rbd_dev->watch_mutex remains taken out forever then
prevents the image from getting unmapped -- "rbd unmap" would inevitably
hang in D state on an attempt to grab the mutex.
来源: CVE Program / CVE List V5
CVSS Information
N/A
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于calc_target未正确设置暂停状态，可能导致监视请求无法重新建立。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
二、漏洞 CVE-2026-23047 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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同批安全公告 · Linux · 2026-02-04 · 共 79 条
| CVE-2026-23098 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2026-23066 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2026-23074 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2026-23077 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2026-23105 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2026-23103 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2026-23095 | 7.5 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-71192 | 7.0 HIGH | Linux kernel 安全漏洞 |
| CVE-2026-23064 | Linux kernel 安全漏洞 | |
| CVE-2026-23065 | Linux kernel 安全漏洞 | |
| CVE-2026-23067 | Linux kernel 安全漏洞 | |
| CVE-2026-23042 | Linux kernel 安全漏洞 | |
| CVE-2026-23060 | Linux kernel 安全漏洞 | |
| CVE-2026-23059 | Linux kernel 安全漏洞 | |
| CVE-2026-23058 | Linux kernel 安全漏洞 | |
| CVE-2026-23057 | Linux kernel 安全漏洞 | |
| CVE-2026-23056 | Linux kernel 安全漏洞 | |
| CVE-2025-71199 | Linux kernel 安全漏洞 | |
| CVE-2025-71198 | Linux kernel 安全漏洞 | |
| CVE-2026-23061 | Linux kernel 安全漏洞 |
显示前 20 条，共 79 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2026-23047
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