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CVE-2023-52626— net/mlx5e: Fix operation precedence bug in port timestamping napi_poll context

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napi_poll中的逻辑将首先按字节地址空间递增指针地址，然后取消引用该值，从而导致越界读取。

AI Predicted 7.8 Difficulty: Moderate EPSS 0.24% · P14

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 11

VendorProduct Version RangeStatus
Linux Linux e5d30f7da35720060299483e65fc372980a82dfb< 40e0d0746390c5b0c31144f4f1688d72f3f8d790 affected
92214be5979c0961a471b7eaaaeacab41bdf456c< 33cdeae8c6fb58cc445f859b67c014dc9f60b4e0 affected
92214be5979c0961a471b7eaaaeacab41bdf456c< 3876638b2c7ebb2c9d181de1191db0de8cac143a affected
42b11d1293e5a0f932c0b6e891b2c7bae57b839d affected
6.6.3< 6.6.15 affected
6.5.13< 6.6 affected
6.7 affected
< 6.7 unaffected
… +3 more rows
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I. Basic Information for CVE-2023-52626

Vulnerability Information
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Vulnerability Title
net/mlx5e: Fix operation precedence bug in port timestamping napi_poll context
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix operation precedence bug in port timestamping napi_poll context Indirection (*) is of lower precedence than postfix increment (++). Logic in napi_poll context would cause an out-of-bound read by first increment the pointer address by byte address space and then dereference the value. Rather, the intended logic was to dereference first and then increment the underlying value.
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napi_poll中的逻辑将首先按字节地址空间递增指针地址，然后取消引用该值，从而导致越界读取。
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 e5d30f7da35720060299483e65fc372980a82dfb ~ 40e0d0746390c5b0c31144f4f1688d72f3f8d790 -
Linux Linux 6.7 -

II. Public POCs for CVE-2023-52626

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III. Intelligence Information for CVE-2023-52626

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Other References for CVE-2023-52626 (3)

Same Patch Batch · Linux · 2024-03-26 · 13 CVEs total

CVE-2023-52623 7.8 HIGH SUNRPC: Fix a suspicious RCU usage warning
CVE-2024-26646 7.8 HIGH thermal: intel: hfi: Add syscore callbacks for system-wide PM
CVE-2024-26644 btrfs: don't abort filesystem when attempting to snapshot deleted subvolume
CVE-2024-26645 tracing: Ensure visibility when inserting an element into tracing_map
CVE-2023-52621 bpf: Check rcu_read_lock_trace_held() before calling bpf map helpers
CVE-2023-52622 ext4: avoid online resizing failures due to oversized flex bg
CVE-2023-52624 drm/amd/display: Wake DMCUB before executing GPINT commands
CVE-2023-52625 drm/amd/display: Refactor DMCUB enter/exit idle interface
CVE-2023-52627 iio: adc: ad7091r: Allow users to configure device events
CVE-2024-26647 drm/amd/display: Fix late derefrence 'dsc' check in 'link_set_dsc_pps_packet()'
CVE-2024-26648 drm/amd/display: Fix variable deferencing before NULL check in edp_setup_replay()
CVE-2024-26649 drm/amdgpu: Fix the null pointer when load rlc firmware

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-52626

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