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CVE-2024-41032— mm: vmalloc: check if a hash-index is in cpu_possible_mask

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，该漏洞源于在某些系统中，如SPARC，cpu_possible_mask有间隔，这可能导致访问不可达和未设置的CPU区域。

CVSS 7.8 · High EPSS 0.30% · P21

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 8

VendorProduct Version RangeStatus
Linux Linux 062eacf57ad91b5c272f89dc964fd6dd9715ea7d< 28acd531c9a365dac01b32e6bc54aed8c1429bcb affected
062eacf57ad91b5c272f89dc964fd6dd9715ea7d< 47f9b6e49b422392fb0e348a65eb925103ba1882 affected
062eacf57ad91b5c272f89dc964fd6dd9715ea7d< a34acf30b19bc4ee3ba2f1082756ea2604c19138 affected
6.4 affected
< 6.4 unaffected
6.6.41≤ 6.6.* unaffected
6.9.10≤ 6.9.* unaffected
6.10≤ * unaffected
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I. Basic Information for CVE-2024-41032

Vulnerability Information
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Vulnerability Title
mm: vmalloc: check if a hash-index is in cpu_possible_mask
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: mm: vmalloc: check if a hash-index is in cpu_possible_mask The problem is that there are systems where cpu_possible_mask has gaps between set CPUs, for example SPARC. In this scenario addr_to_vb_xa() hash function can return an index which accesses to not-possible and not setup CPU area using per_cpu() macro. This results in an oops on SPARC. A per-cpu vmap_block_queue is also used as hash table, incorrectly assuming the cpu_possible_mask has no gaps. Fix it by adjusting an index to a next possible CPU.
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，该漏洞源于在某些系统中，如SPARC，cpu_possible_mask有间隔，这可能导致访问不可达和未设置的CPU区域。
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 062eacf57ad91b5c272f89dc964fd6dd9715ea7d ~ 28acd531c9a365dac01b32e6bc54aed8c1429bcb -
Linux Linux 6.4 -

II. Public POCs for CVE-2024-41032

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III. Intelligence Information for CVE-2024-41032

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Other References for CVE-2024-41032 (3)

Same Patch Batch · Linux · 2024-07-29 · 121 CVEs total

CVE-2024-41040 9.8 CRITICAL net/sched: Fix UAF when resolving a clash
CVE-2024-41081 9.8 CRITICAL ila: block BH in ila_output()
CVE-2024-41073 9.8 CRITICAL nvme: avoid double free special payload
CVE-2024-41091 8.8 HIGH tun: add missing verification for short frame
CVE-2024-41090 8.8 HIGH tap: add missing verification for short frame
CVE-2024-41046 8.8 HIGH net: ethernet: lantiq_etop: fix double free in detach
CVE-2024-42083 8.8 HIGH ionic: fix kernel panic due to multi-buffer handling
CVE-2024-41062 8.8 HIGH bluetooth/l2cap: sync sock recv cb and release
CVE-2024-41045 7.8 HIGH bpf: Defer work in bpf_timer_cancel_and_free
CVE-2024-41051 7.8 HIGH cachefiles: wait for ondemand_object_worker to finish when dropping object
CVE-2024-41049 7.8 HIGH filelock: fix potential use-after-free in posix_lock_inode
CVE-2024-41057 7.8 HIGH cachefiles: fix slab-use-after-free in cachefiles_withdraw_cookie()
CVE-2024-41060 7.8 HIGH drm/radeon: check bo_va->bo is non-NULL before using it
CVE-2024-41059 7.8 HIGH hfsplus: fix uninit-value in copy_name
CVE-2024-42075 7.8 HIGH bpf: Fix remap of arena.
CVE-2024-41064 7.8 HIGH powerpc/eeh: avoid possible crash when edev->pdev changes
CVE-2024-42072 7.8 HIGH bpf: Fix may_goto with negative offset.
CVE-2024-42064 7.8 HIGH drm/amd/display: Skip pipe if the pipe idx not set properly
CVE-2024-41086 7.8 HIGH bcachefs: Fix sb_field_downgrade validation
CVE-2024-41087 7.8 HIGH ata: libata-core: Fix double free on error

Showing top 20 of 121 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-41032

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