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CVE-2024-50132— tracing/probes: Fix MAX_TRACE_ARGS limit handling

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tracing/probes模块在创建trace_probe时未能正确处理参数数量超过MAX_TRACE_ARGS的情况，导致无效的内存访问。

CVSS 7.8 · High EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 7

VendorProduct Version RangeStatus
Linux Linux e96b42d22f66982b84e31b6935a59d74d9a2d848< 6bc24db74fe4788cc7c2f30a113fc6aafba225a3 affected
035ba76014c096316fa809a46ce0a1b9af1cde0d< 08ccd1a57c4d3882e9a877eb2dcc66e50a3b0279 affected
035ba76014c096316fa809a46ce0a1b9af1cde0d< 73f35080477e893aa6f4c8d388352b871b288fbc affected
6.9 affected
< 6.9 unaffected
6.11.6≤ 6.11.* unaffected
6.12≤ * unaffected
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I. Basic Information for CVE-2024-50132

Vulnerability Information
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Vulnerability Title
tracing/probes: Fix MAX_TRACE_ARGS limit handling
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: tracing/probes: Fix MAX_TRACE_ARGS limit handling When creating a trace_probe we would set nr_args prior to truncating the arguments to MAX_TRACE_ARGS. However, we would only initialize arguments up to the limit. This caused invalid memory access when attempting to set up probes with more than 128 fetchargs. BUG: kernel NULL pointer dereference, address: 0000000000000020 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: Oops: 0000 [#1] PREEMPT SMP PTI CPU: 0 UID: 0 PID: 1769 Comm: cat Not tainted 6.11.0-rc7+ #8 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-1.fc39 04/01/2014 RIP: 0010:__set_print_fmt+0x134/0x330 Resolve the issue by applying the MAX_TRACE_ARGS limit earlier. Return an error when there are too many arguments instead of silently truncating.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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tracing/probes模块在创建trace_probe时未能正确处理参数数量超过MAX_TRACE_ARGS的情况，导致无效的内存访问。
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 e96b42d22f66982b84e31b6935a59d74d9a2d848 ~ 6bc24db74fe4788cc7c2f30a113fc6aafba225a3 -
Linux Linux 6.9 -

II. Public POCs for CVE-2024-50132

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III. Intelligence Information for CVE-2024-50132

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Patches & Fixes for CVE-2024-50132 (3)

Same Patch Batch · Linux · 2024-11-05 · 50 CVEs total

CVE-2024-50106 9.8 CRITICAL nfsd: fix race between laundromat and free_stateid
CVE-2024-50113 8.8 HIGH firewire: core: fix invalid port index for parent device
CVE-2024-50115 8.4 HIGH KVM: nSVM: Ignore nCR3[4:0] when loading PDPTEs from memory
CVE-2024-50125 8.0 HIGH Bluetooth: SCO: Fix UAF on sco_sock_timeout
CVE-2024-50124 8.0 HIGH Bluetooth: ISO: Fix UAF on iso_sock_timeout
CVE-2024-50130 7.8 HIGH netfilter: bpf: must hold reference on net namespace
CVE-2023-52920 7.8 HIGH bpf: support non-r10 register spill/fill to/from stack in precision tracking
CVE-2024-50091 7.8 HIGH dm vdo: don't refer to dedupe_context after releasing it
CVE-2024-50101 7.8 HIGH iommu/vt-d: Fix incorrect pci_for_each_dma_alias() for non-PCI devices
CVE-2024-50114 7.8 HIGH KVM: arm64: Unregister redistributor for failed vCPU creation
CVE-2024-50127 7.8 HIGH net: sched: fix use-after-free in taprio_change()
CVE-2024-50126 7.8 HIGH net: sched: use RCU read-side critical section in taprio_dump()
CVE-2024-50128 7.8 HIGH net: wwan: fix global oob in wwan_rtnl_policy
CVE-2024-50090 7.8 HIGH drm/xe/oa: Fix overflow in oa batch buffer
CVE-2024-50095 7.5 HIGH RDMA/mad: Improve handling of timed out WRs of mad agent
CVE-2024-50094 7.5 HIGH sfc: Don't invoke xdp_do_flush() from netpoll.
CVE-2024-50117 7.3 HIGH drm/amd: Guard against bad data for ATIF ACPI method
CVE-2024-50096 7.3 HIGH nouveau/dmem: Fix vulnerability in migrate_to_ram upon copy error
CVE-2024-50131 7.3 HIGH tracing: Consider the NULL character when validating the event length
CVE-2024-50099 7.3 HIGH arm64: probes: Remove broken LDR (literal) uprobe support

Showing top 20 of 50 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-50132

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