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CVE-2024-35960— net/mlx5: Properly link new fs rules into the tree

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，该漏洞源于创建新的规则不能正确链接到树中。

AI Predicted 6.5 Difficulty: Moderate EPSS 1.40% · P71

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 74491de937125d0c98c9b9c9208b4105717a3caa< de0139719cdda82806a47580ca0df06fc85e0bd2 affected
74491de937125d0c98c9b9c9208b4105717a3caa< 1263b0b26077b1183c3c45a0a2479573a351d423 affected
74491de937125d0c98c9b9c9208b4105717a3caa< 3d90ca9145f6b97b38d0c2b6b30f6ca6af9c1801 affected
74491de937125d0c98c9b9c9208b4105717a3caa< 7aaee12b804c5e0374e7b132b6ec2158ff33dd64 affected
74491de937125d0c98c9b9c9208b4105717a3caa< 2e8dc5cffc844dacfa79f056dea88002312f253f affected
74491de937125d0c98c9b9c9208b4105717a3caa< 5cf5337ef701830f173b4eec00a4f984adeb57a0 affected
74491de937125d0c98c9b9c9208b4105717a3caa< adf67a03af39095f05d82050f15813d6f700159d affected
74491de937125d0c98c9b9c9208b4105717a3caa< 7c6782ad4911cbee874e85630226ed389ff2e453 affected
… +10 more rows
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I. Basic Information for CVE-2024-35960

Vulnerability Information
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Vulnerability Title
net/mlx5: Properly link new fs rules into the tree
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Properly link new fs rules into the tree Previously, add_rule_fg would only add newly created rules from the handle into the tree when they had a refcount of 1. On the other hand, create_flow_handle tries hard to find and reference already existing identical rules instead of creating new ones. These two behaviors can result in a situation where create_flow_handle 1) creates a new rule and references it, then 2) in a subsequent step during the same handle creation references it again, resulting in a rule with a refcount of 2 that is not linked into the tree, will have a NULL parent and root and will result in a crash when the flow group is deleted because del_sw_hw_rule, invoked on rule deletion, assumes node->parent is != NULL. This happened in the wild, due to another bug related to incorrect handling of duplicate pkt_reformat ids, which lead to the code in create_flow_handle incorrectly referencing a just-added rule in the same flow handle, resulting in the problem described above. Full details are at [1]. This patch changes add_rule_fg to add new rules without parents into the tree, properly initializing them and avoiding the crash. This makes it more consistent with how rules are added to an FTE in create_flow_handle.
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，该漏洞源于创建新的规则不能正确链接到树中。
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 74491de937125d0c98c9b9c9208b4105717a3caa ~ de0139719cdda82806a47580ca0df06fc85e0bd2 -
Linux Linux 4.10 -

II. Public POCs for CVE-2024-35960

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III. Intelligence Information for CVE-2024-35960

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Mailing List Discussions for CVE-2024-35960 (2)

Other References for CVE-2024-35960 (6)

Same Patch Batch · Linux · 2024-05-20 · 62 CVEs total

CVE-2024-35969 8.8 HIGH ipv6: fix race condition between ipv6_get_ifaddr and ipv6_del_addr
CVE-2024-35980 8.4 HIGH arm64: tlb: Fix TLBI RANGE operand
CVE-2024-35987 8.4 HIGH riscv: Fix loading 64-bit NOMMU kernels past the start of RAM
CVE-2024-35993 7.8 HIGH mm: turn folio_test_hugetlb into a PageType
CVE-2024-36001 7.8 HIGH netfs: Fix the pre-flush when appending to a file in writethrough mode
CVE-2024-36007 7.8 HIGH mlxsw: spectrum_acl_tcam: Fix warning during rehash
CVE-2024-35954 7.8 HIGH scsi: sg: Avoid sg device teardown race
CVE-2024-35949 7.8 HIGH btrfs: make sure that WRITTEN is set on all metadata blocks
CVE-2024-35950 7.8 HIGH drm/client: Fully protect modes[] with dev->mode_config.mutex
CVE-2024-35951 7.8 HIGH drm/panfrost: Fix the error path in panfrost_mmu_map_fault_addr()
CVE-2024-35948 7.8 HIGH bcachefs: Check for journal entries overruning end of sb clean section
CVE-2024-35994 7.8 HIGH firmware: qcom: uefisecapp: Fix memory related IO errors and crashes
CVE-2024-35990 7.8 HIGH dma: xilinx_dpdma: Fix locking
CVE-2024-35958 7.8 HIGH net: ena: Fix incorrect descriptor free behavior
CVE-2024-35968 7.8 HIGH pds_core: Fix pdsc_check_pci_health function to use work thread
CVE-2024-36009 7.8 HIGH ax25: Fix netdev refcount issue
CVE-2024-35979 7.8 HIGH raid1: fix use-after-free for original bio in raid1_write_request()
CVE-2024-35998 7.5 HIGH smb3: fix lock ordering potential deadlock in cifs_sync_mid_result
CVE-2024-35971 7.5 HIGH net: ks8851: Handle softirqs at the end of IRQ thread to fix hang
CVE-2024-35999 7.5 HIGH smb3: missing lock when picking channel

Showing top 20 of 62 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-35960

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