CentOS Linux 8.5 [TuxCare] 安全性更新：bpftool / kernel / kernel-core / kernel-cross-headers / etc 多個弱點 （CENTOS8.5：CLSA-2024：1725876080）
high Nessus Plugin ID 366947
語言:
概要
CentOS Linux 主機缺少一個或多個安全性更新。說明
CentOS Linux 8.5 主機已安裝的套件會受到 TuxCare CENTOS8.5：CLSA-2024：1725876080 公告中提及的多個弱點影響。- 已解決 Linux 核心中的下列弱點：tracing: Restructure trace_clock_global() to never block It was reported that a fix to the ring buffer recursion detection would cause a hung machine when performing suspend / resume testing. The following backtrace was extracted from debugging that case: Call Trace: trace_clock_global+0x91/0xa0 __rb_reserve_next+0x237/0x460 ring_buffer_lock_reserve+0x12a/0x3f0 trace_buffer_lock_reserve+0x10/0x50 __trace_graph_return+0x1f/0x80 trace_graph_return+0xb7/0xf0 ? trace_clock_global+0x91/0xa0 ftrace_return_to_handler+0x8b/0xf0 ? pv_hash+0xa0/0xa0 return_to_handler+0x15/0x30 ? ftrace_graph_caller+0xa0/0xa0 ? trace_clock_global+0x91/0xa0 ? __rb_reserve_next+0x237/0x460 ? ring_buffer_lock_reserve+0x12a/0x3f0 ? trace_event_buffer_lock_reserve+0x3c/0x120 ? trace_event_buffer_reserve+0x6b/0xc0 ? trace_event_raw_event_device_pm_callback_start+0x125/0x2d0 ? dpm_run_callback+0x3b/0xc0 ? pm_ops_is_empty+0x50/0x50 ? platform_get_irq_byname_optional+0x90/0x90 ? trace_device_pm_callback_start+0x82/0xd0 ? dpm_run_callback+0x49/0xc0 With the following RIP: RIP:
0010:native_queued_spin_lock_slowpath+0x69/0x200 Since the fix to the recursion detection would allow a single recursion to happen while tracing, this lead to the trace_clock_global() taking a spin lock and then trying to take it again: ring_buffer_lock_reserve() { trace_clock_global() { arch_spin_lock() {queued_spin_lock_slowpath() { /* lock taken */ (something else gets traced by function graph tracer) ring_buffer_lock_reserve() { trace_clock_global() { arch_spin_lock() { queued_spin_lock_slowpath() { /* DEAD LOCK! */ Tracing should *never* block, as it can lead to strange lockups like the above. Restructure the trace_clock_global() code to instead of simply taking a lock to update the recorded prev_time simply use it, as two events happening on two different CPUs that calls this at the same time, really doesn't matter which one goes first. Use a trylock to grab the lock for updating the prev_time, and if it fails, simply try again the next time. If it failed to be taken, that means something else is already updating it. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=212761 (CVE-2021-46939)
- 已解決 Linux 核心中的下列弱點：userfaultfd: fix a race between writeprotect and exit_mmap() A race is possible when a process exits, its VMAs are removed by exit_mmap() and at the same time userfaultfd_writeprotect() is called. The race was detected by KASAN on a development kernel, but it appears to be possible on vanilla kernels as well. Use mmget_not_zero() to prevent the race as done in other userfaultfd operations. (CVE-2021-47461)
- 已解決 Linux 核心中的下列弱點：net: amd-xgbe: Fix skb data length underflow There will be BUG_ON() triggered in include/linux/skbuff.h leading to intermittent kernel panic, when the skb length underflow is detected. Fix this by dropping the packet if such length underflows are seen because of inconsistencies in the hardware descriptors. (CVE-2022-48743)
- 已解決 Linux 核心中的下列弱點：nvme-rdma: fix possible use-after-free in transport error_recovery work While nvme_rdma_submit_async_event_work is checking the ctrl and queue state before preparing the AER command and scheduling io_work, in order to fully prevent a race where this check is not reliable the error recovery work must flush async_event_work before continuing to destroy the admin queue after setting the ctrl state to RESETTING such that there is no race .submit_async_event and the error recovery handler itself changing the ctrl state. (CVE-2022-48788)
- 已解決 Linux 核心中的下列弱點：nvme-tcp: fix possible use-after-free in transport error_recovery work While nvme_tcp_submit_async_event_work is checking the ctrl and queue state before preparing the AER command and scheduling io_work, in order to fully prevent a race where this check is not reliable the error recovery work must flush async_event_work before continuing to destroy the admin queue after setting the ctrl state to RESETTING such that there is no race .submit_async_event and the error recovery handler itself changing the ctrl state. (CVE-2022-48789)
請注意，Nessus 並未測試這些問題，而是僅依據應用程式自我報告的版本號碼作出判斷。
解決方案
根據 TuxCare 公告 CENTOS8.5：CLSA-2024：1725876080 中的指引更新受影響的套件。另請參閱
Plugin 詳細資訊
嚴重性: High
ID: 366947
檔案名稱: tuxcare_centos_8.5_CLSA-2024-1725876080.nasl
版本: 1.1
類型: Local
代理程式: unix
已發布: 2026/10/18
已更新: 2026/10/18
支援的感應器: Nessus Agent, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus
風險資訊
VPR
風險因素: High
分數: 7.6
百分位數: 98.48
Vendor
Vendor Severity: Important
CVSS v2
風險因素: Medium
基本分數: 6.8
時間性分數: 5
媒介: CVSS2#AV:A/AC:H/Au:N/C:C/I:C/A:C
CVSS 評分資料來源: CVE-2024-42225
CVSS v3
風險因素: High
基本分數: 7.8
時間性分數: 6.8
媒介: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
時間媒介: CVSS:3.0/E:U/RL:O/RC:C
CVSS 評分資料來源: CVE-2024-41087
弱點資訊
必要的 KB 項目: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list, Host/OS/extended-third-party
可輕鬆利用: No known exploits are available
修補程式發佈日期: 2024/9/9
弱點發布日期: 2021/7/16
參考資訊
CVE: CVE-2021-46939, CVE-2021-47461, CVE-2022-48743, CVE-2022-48757, CVE-2022-48788, CVE-2022-48789, CVE-2022-48790, CVE-2022-48796, CVE-2023-51779, CVE-2023-52340, CVE-2023-52486, CVE-2023-52530, CVE-2023-52619, CVE-2023-52622, CVE-2023-52623, CVE-2023-52707, CVE-2023-52811, CVE-2024-21803, CVE-2024-25739, CVE-2024-25742, CVE-2024-26614, CVE-2024-26668, CVE-2024-26669, CVE-2024-26698, CVE-2024-26704, CVE-2024-26733, CVE-2024-26772, CVE-2024-26773, CVE-2024-26925, CVE-2024-27397, CVE-2024-36883, CVE-2024-36940, CVE-2024-36960, CVE-2024-36978, CVE-2024-38552, CVE-2024-38570, CVE-2024-39471, CVE-2024-40956, CVE-2024-41087, CVE-2024-41090, CVE-2024-41091, CVE-2024-42154, CVE-2024-42161, CVE-2024-42225, CVE-2024-42228
CLSA: 2024:1725876080