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CVE-2024-27058— tmpfs: fix race on handling dquot rbtree

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，该漏洞源于处理dquot rbtree时存在争用问题。

CVSS 7.8 · High EPSS 0.39% · P31

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 10

VendorProduct Version RangeStatus
Linux Linux eafc474e202978ac735c551d5ee1eb8c02e2be54< c7077f43f30d817d10a9f8245e51576ac114b2f0 affected
eafc474e202978ac735c551d5ee1eb8c02e2be54< 617d55b90e73c7b4aa2733ca6cc3f9b72d1124bb affected
eafc474e202978ac735c551d5ee1eb8c02e2be54< f82f184874d2761ebaa60dccf577921a0dbb3810 affected
eafc474e202978ac735c551d5ee1eb8c02e2be54< 0a69b6b3a026543bc215ccc866d0aea5579e6ce2 affected
6.6 affected
< 6.6 unaffected
6.6.24≤ 6.6.* unaffected
6.7.12≤ 6.7.* unaffected
… +2 more rows
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I. Basic Information for CVE-2024-27058

Vulnerability Information
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Vulnerability Title
tmpfs: fix race on handling dquot rbtree
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: tmpfs: fix race on handling dquot rbtree A syzkaller reproducer found a race while attempting to remove dquot information from the rb tree. Fetching the rb_tree root node must also be protected by the dqopt->dqio_sem, otherwise, giving the right timing, shmem_release_dquot() will trigger a warning because it couldn't find a node in the tree, when the real reason was the root node changing before the search starts: Thread 1 Thread 2 - shmem_release_dquot() - shmem_{acquire,release}_dquot() - fetch ROOT - Fetch ROOT - acquire dqio_sem - wait dqio_sem - do something, triger a tree rebalance - release dqio_sem - acquire dqio_sem - start searching for the node, but from the wrong location, missing the node, and triggering a warning.
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，该漏洞源于处理dquot rbtree时存在争用问题。
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 eafc474e202978ac735c551d5ee1eb8c02e2be54 ~ c7077f43f30d817d10a9f8245e51576ac114b2f0 -
Linux Linux 6.6 -

II. Public POCs for CVE-2024-27058

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III. Intelligence Information for CVE-2024-27058

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Other References for CVE-2024-27058 (4)

Same Patch Batch · Linux · 2024-05-01 · 159 CVEs total

CVE-2024-27388 9.8 CRITICAL SUNRPC: fix some memleaks in gssx_dec_option_array
CVE-2024-26953 9.8 CRITICAL net: esp: fix bad handling of pages from page_pool
CVE-2024-26931 8.8 HIGH scsi: qla2xxx: Fix command flush on cable pull
CVE-2024-27053 8.8 HIGH wifi: wilc1000: fix RCU usage in connect path
CVE-2024-26990 8.8 HIGH KVM: x86/mmu: Write-protect L2 SPTEs in TDP MMU when clearing dirty status
CVE-2024-26952 8.3 HIGH ksmbd: fix potencial out-of-bounds when buffer offset is invalid
CVE-2024-27018 8.2 HIGH netfilter: br_netfilter: skip conntrack input hook for promisc packets
CVE-2024-26936 8.2 HIGH ksmbd: validate request buffer size in smb2_allocate_rsp_buf()
CVE-2024-26980 8.2 HIGH ksmbd: fix slab-out-of-bounds in smb2_allocate_rsp_buf
CVE-2024-26954 8.1 HIGH ksmbd: fix slab-out-of-bounds in smb_strndup_from_utf16()
CVE-2024-27050 7.8 HIGH libbpf: Use OPTS_SET() macro in bpf_xdp_query()
CVE-2024-26966 7.8 HIGH clk: qcom: mmcc-apq8084: fix terminating of frequency table arrays
CVE-2024-26974 7.8 HIGH crypto: qat - resolve race condition during AER recovery
CVE-2024-26976 7.8 HIGH KVM: Always flush async #PF workqueue when vCPU is being destroyed
CVE-2024-27062 7.8 HIGH nouveau: lock the client object tree.
CVE-2024-27061 7.8 HIGH crypto: sun8i-ce - Fix use after free in unprepare
CVE-2024-26983 7.8 HIGH bootconfig: use memblock_free_late to free xbc memory to buddy
CVE-2024-27056 7.8 HIGH wifi: iwlwifi: mvm: ensure offloading TID queue exists
CVE-2024-27017 7.8 HIGH netfilter: nft_set_pipapo: walk over current view on netlink dump
CVE-2024-27019 7.8 HIGH netfilter: nf_tables: Fix potential data-race in __nft_obj_type_get()

Showing top 20 of 159 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-27058

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