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CVE-2024-46829— rtmutex: Drop rt_mutex::wait_lock before scheduling

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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，该漏洞源于在处理死锁时，未释放wait_lock，导致警告。

AI Predicted 3.3 Difficulty: Moderate EPSS 0.20% · P10

Possible ATT&CK Techniques 1 AI

T1059.004 · Unix Shell

Affected Version Matrix 30

VendorProduct Version RangeStatus
Linux Linux 3d5c9340d1949733eb37616abd15db36aef9a57c< 432efdbe7da5ecfcbc0c2180cfdbab1441752a38 affected
3d5c9340d1949733eb37616abd15db36aef9a57c< 6a976e9a47e8e5b326de671811561cab12e6fb1f affected
3d5c9340d1949733eb37616abd15db36aef9a57c< 1401da1486dc1cdbef6025fd74a3977df3a3e5d0 affected
3d5c9340d1949733eb37616abd15db36aef9a57c< 93f44655472d9cd418293d328f9d141ca234ad83 affected
3d5c9340d1949733eb37616abd15db36aef9a57c< a92d81c9efec9280681c27a2c0a963fd0f1338e0 affected
3d5c9340d1949733eb37616abd15db36aef9a57c< 85f03ca98e07cd0786738b56ae73740bce0ac27f affected
3d5c9340d1949733eb37616abd15db36aef9a57c< f13b5afc5c4889569d84c3011ce449f61fccfb28 affected
3d5c9340d1949733eb37616abd15db36aef9a57c< d33d26036a0274b472299d7dcdaa5fb34329f91b affected
… +22 more rows
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I. Basic Information for CVE-2024-46829

Vulnerability Information
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Vulnerability Title
rtmutex: Drop rt_mutex::wait_lock before scheduling
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: rtmutex: Drop rt_mutex::wait_lock before scheduling rt_mutex_handle_deadlock() is called with rt_mutex::wait_lock held. In the good case it returns with the lock held and in the deadlock case it emits a warning and goes into an endless scheduling loop with the lock held, which triggers the 'scheduling in atomic' warning. Unlock rt_mutex::wait_lock in the dead lock case before issuing the warning and dropping into the schedule for ever loop. [ tglx: Moved unlock before the WARN(), removed the pointless comment, massaged changelog, added Fixes tag ]
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
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，该漏洞源于在处理死锁时，未释放wait_lock，导致警告。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 3d5c9340d1949733eb37616abd15db36aef9a57c ~ 432efdbe7da5ecfcbc0c2180cfdbab1441752a38 -
Linux Linux 3.16 -

II. Public POCs for CVE-2024-46829

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III. Intelligence Information for CVE-2024-46829

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Other References for CVE-2024-46829 (7)

Same Patch Batch · Linux · 2024-09-27 · 66 CVEs total

CVE-2024-46865 9.8 CRITICAL fou: fix initialization of grc
CVE-2024-46831 8.4 HIGH net: microchip: vcap: Fix use-after-free error in kunit test
CVE-2024-46823 8.4 HIGH kunit/overflow: Fix UB in overflow_allocation_test
CVE-2024-46858 8.1 HIGH mptcp: pm: Fix uaf in __timer_delete_sync
CVE-2024-46862 8.0 HIGH ASoC: Intel: soc-acpi-intel-mtl-match: add missing empty item
CVE-2024-46842 7.8 HIGH scsi: lpfc: Handle mailbox timeouts in lpfc_get_sfp_info
CVE-2024-46813 7.8 HIGH drm/amd/display: Check link_index before accessing dc->links[]
CVE-2024-46803 7.8 HIGH drm/amdkfd: Check debug trap enable before write dbg_ev_file
CVE-2024-46866 7.8 HIGH drm/xe/client: add missing bo locking in show_meminfo()
CVE-2024-46812 7.8 HIGH drm/amd/display: Skip inactive planes within ModeSupportAndSystemConfiguration
CVE-2024-46816 7.8 HIGH drm/amd/display: Stop amdgpu_dm initialize when link nums greater than max_links
CVE-2024-46818 7.8 HIGH drm/amd/display: Check gpio_id before used as array index
CVE-2024-46859 7.8 HIGH platform/x86: panasonic-laptop: Fix SINF array out of bounds accesses
CVE-2024-46830 7.8 HIGH KVM: x86: Acquire kvm->srcu when handling KVM_SET_VCPU_EVENTS
CVE-2024-46852 7.8 HIGH dma-buf: heaps: Fix off-by-one in CMA heap fault handler
CVE-2024-46834 7.8 HIGH ethtool: fail closed if we can't get max channel used in indirection tables
CVE-2024-46850 7.8 HIGH drm/amd/display: Avoid race between dcn35_set_drr() and dc_state_destruct()
CVE-2024-46847 7.8 HIGH mm: vmalloc: ensure vmap_block is initialised before adding to queue
CVE-2024-46845 7.8 HIGH tracing/timerlat: Only clear timer if a kthread exists
CVE-2024-46855 7.5 HIGH netfilter: nft_socket: fix sk refcount leaks

Showing top 20 of 66 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-46829

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