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CVE-2024-26646— thermal: intel: hfi: Add syscore callbacks for system-wide PM

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，该漏洞源于内存发生损坏。

CVSS 7.8 · High EPSS 0.24% · P14

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 10

VendorProduct Version RangeStatus
Linux Linux 1cb19cabeb0e187b6c244d0da73d27f7432c40dc< 28f010dc50df0f7987c04112114fcfa7e0803566 affected
1cb19cabeb0e187b6c244d0da73d27f7432c40dc< 019ccc66d56a696a4dfee3bfa2f04d0a7c3d89ee affected
1cb19cabeb0e187b6c244d0da73d27f7432c40dc< c9d6d63b6c03afaa6f185df249af693a7939577c affected
1cb19cabeb0e187b6c244d0da73d27f7432c40dc< 97566d09fd02d2ab329774bb89a2cdf2267e86d9 affected
5.18 affected
< 5.18 unaffected
6.1.76≤ 6.1.* unaffected
6.6.15≤ 6.6.* unaffected
… +2 more rows
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I. Basic Information for CVE-2024-26646

Vulnerability Information
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Vulnerability Title
thermal: intel: hfi: Add syscore callbacks for system-wide PM
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: thermal: intel: hfi: Add syscore callbacks for system-wide PM The kernel allocates a memory buffer and provides its location to the hardware, which uses it to update the HFI table. This allocation occurs during boot and remains constant throughout runtime. When resuming from hibernation, the restore kernel allocates a second memory buffer and reprograms the HFI hardware with the new location as part of a normal boot. The location of the second memory buffer may differ from the one allocated by the image kernel. When the restore kernel transfers control to the image kernel, its HFI buffer becomes invalid, potentially leading to memory corruption if the hardware writes to it (the hardware continues to use the buffer from the restore kernel). It is also possible that the hardware "forgets" the address of the memory buffer when resuming from "deep" suspend. Memory corruption may also occur in such a scenario. To prevent the described memory corruption, disable HFI when preparing to suspend or hibernate. Enable it when resuming. Add syscore callbacks to handle the package of the boot CPU (packages of non-boot CPUs are handled via CPU offline). Syscore ops always run on the boot CPU. Additionally, HFI only needs to be disabled during "deep" suspend and hibernation. Syscore ops only run in these cases. [ rjw: Comment adjustment, subject and changelog edits ]
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，该漏洞源于内存发生损坏。
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 1cb19cabeb0e187b6c244d0da73d27f7432c40dc ~ 28f010dc50df0f7987c04112114fcfa7e0803566 -
Linux Linux 5.18 -

II. Public POCs for CVE-2024-26646

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III. Intelligence Information for CVE-2024-26646

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Other References for CVE-2024-26646 (4)

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

CVE-2023-52623 7.8 HIGH SUNRPC: Fix a suspicious RCU usage warning
CVE-2024-26644 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-2023-52626 net/mlx5e: Fix operation precedence bug in port timestamping napi_poll context
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-2024-26646

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