CVE-2024-26698— Linux kernel 安全漏洞
影响版本矩阵 14
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | ac5047671758ad4be9f93898247b3a8b6dfde4c7< 9ec807e7b6f5fcf9499f3baa69f254bb239a847f | affected |
ac5047671758ad4be9f93898247b3a8b6dfde4c7< 7656372ae190e54e8c8cf1039725a5ea59fdf84a | affected | ||
ac5047671758ad4be9f93898247b3a8b6dfde4c7< 48a8ccccffbae10c91d31fc872db5c31aba07518 | affected | ||
ac5047671758ad4be9f93898247b3a8b6dfde4c7< 22a77c0f5b8233237731df3288d067af51a2fd7b | affected | ||
ac5047671758ad4be9f93898247b3a8b6dfde4c7< 0e8875de9dad12805ff66e92cd5edea6a421f1cd | affected | ||
ac5047671758ad4be9f93898247b3a8b6dfde4c7< e0526ec5360a48ad3ab2e26e802b0532302a7e11 | affected | ||
5.8 | affected | ||
< 5.8 | unaffected | ||
| … +6 条更多 | |||
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一、 漏洞 CVE-2024-26698 基础信息
漏洞信息
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Vulnerability Title
hv_netvsc: Fix race condition between netvsc_probe and netvsc_remove
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: hv_netvsc: Fix race condition between netvsc_probe and netvsc_remove In commit ac5047671758 ("hv_netvsc: Disable NAPI before closing the VMBus channel"), napi_disable was getting called for all channels, including all subchannels without confirming if they are enabled or not. This caused hv_netvsc getting hung at napi_disable, when netvsc_probe() has finished running but nvdev->subchan_work has not started yet. netvsc_subchan_work() -> rndis_set_subchannel() has not created the sub-channels and because of that netvsc_sc_open() is not running. netvsc_remove() calls cancel_work_sync(&nvdev->subchan_work), for which netvsc_subchan_work did not run. netif_napi_add() sets the bit NAPI_STATE_SCHED because it ensures NAPI cannot be scheduled. Then netvsc_sc_open() -> napi_enable will clear the NAPIF_STATE_SCHED bit, so it can be scheduled. napi_disable() does the opposite. Now during netvsc_device_remove(), when napi_disable is called for those subchannels, napi_disable gets stuck on infinite msleep. This fix addresses this problem by ensuring that napi_disable() is not getting called for non-enabled NAPI struct. But netif_napi_del() is still necessary for these non-enabled NAPI struct for cleanup purpose. Call trace: [ 654.559417] task:modprobe state:D stack: 0 pid: 2321 ppid: 1091 flags:0x00004002 [ 654.568030] Call Trace: [ 654.571221] <TASK> [ 654.573790] __schedule+0x2d6/0x960 [ 654.577733] schedule+0x69/0xf0 [ 654.581214] schedule_timeout+0x87/0x140 [ 654.585463] ? __bpf_trace_tick_stop+0x20/0x20 [ 654.590291] msleep+0x2d/0x40 [ 654.593625] napi_disable+0x2b/0x80 [ 654.597437] netvsc_device_remove+0x8a/0x1f0 [hv_netvsc] [ 654.603935] rndis_filter_device_remove+0x194/0x1c0 [hv_netvsc] [ 654.611101] ? do_wait_intr+0xb0/0xb0 [ 654.615753] netvsc_remove+0x7c/0x120 [hv_netvsc] [ 654.621675] vmbus_remove+0x27/0x40 [hv_vmbus]
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，该漏洞源于存在竞争条件。
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-2024-26698 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2024-26698 邮件列表归档 (1)
CVE-2024-26698 其他参考 (5)
同批安全公告 · Linux · 2024-04-03 · 共 94 条
| CVE-2024-26744 | Linux kernel 安全漏洞 | |
| CVE-2024-26741 | Linux kernel 安全漏洞 | |
| CVE-2024-26739 | Linux kernel 安全漏洞 | |
| CVE-2024-26735 | Linux kernel 安全漏洞 | |
| CVE-2024-26734 | Linux kernel 安全漏洞 | |
| CVE-2024-26733 | Linux kernel 安全漏洞 | |
| CVE-2024-26732 | Linux kernel 安全漏洞 | |
| CVE-2024-26731 | Linux kernel 安全漏洞 | |
| CVE-2024-26736 | Linux kernel 安全漏洞 | |
| CVE-2024-26743 | Linux kernel 安全漏洞 | |
| CVE-2024-26742 | Linux kernel 安全漏洞 | |
| CVE-2024-26747 | Linux kernel 安全漏洞 | |
| CVE-2024-26748 | Linux kernel 安全漏洞 | |
| CVE-2024-26749 | Linux kernel 安全漏洞 | |
| CVE-2024-26751 | Linux kernel 安全漏洞 | |
| CVE-2024-26752 | Linux kernel 安全漏洞 | |
| CVE-2024-26753 | Linux kernel 安全漏洞 | |
| CVE-2024-26754 | Linux kernel 安全漏洞 | |
| CVE-2024-26755 | Linux kernel 安全漏洞 | |
| CVE-2024-26756 | Linux kernel 安全漏洞 |
显示前 20 条，共 94 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2024-26698
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