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CVE-2023-53341

of/fdt: run soc memory setup when early_init_dt_scan_memory fails

Medium5.5EPSS 0.21%
Published
Updated
Reserved
Assigned by
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: of/fdt: run soc memory setup when early_init_dt_scan_memory fails If memory has been found early_init_dt_scan_memory now returns 1. If it hasn't found any memory it will return 0, allowing other memory setup mechanisms to carry on. Previously early_init_dt_scan_memory always returned 0 without distinguishing between any kind of memory setup being done or not. Any code path after the early_init_dt_scan memory call in the ramips plat_mem_setup code wouldn't be executed anymore. Making early_init_dt_scan_memory the only way to initialize the memory. Some boards, including my mt7621 based Cudy X6 board, depend on memory initialization being done via the soc_info.mem_detect function pointer. Those wouldn't be able to obtain memory and panic the kernel during early bootup with the message "early_init_dt_alloc_memory_arch: Failed to allocate 12416 bytes align=0x40".

Scores

CVSS scores of CVE-2023-53341, by who scored it
Scored byCVSSScoreVector
CISA-ADPADP (enrichment)3.1Medium5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVDNVD · Modified3.1Medium5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
0.21% · top 89% of all CVEs (6 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.

Weakness

Affected products

  • Linux · Linux

    • affected 1f012283e9360fb4007308f04cfaeb205e34b684 – < 04836fc5b720dfa32ff781383d84f63019abf9b9
    • affected 1f012283e9360fb4007308f04cfaeb205e34b684 – < c4849f18185fd4e93b04cd45552f8d68c0240e21
    • affected 1f012283e9360fb4007308f04cfaeb205e34b684 – < 2a12187d5853d9fd5102278cecef7dac7c8ce7ea

  • Linux · Linux

    • affected 5.17
    • unaffected < 5.17
    • unaffected 6.0.19 – ≤ 6.0.*
    • unaffected 6.1.5 – ≤ 6.1.*
    • unaffected 6.2 – ≤ *

References (3)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .