Executive Summary

Informations
Name CVE-2025-37896 First vendor Publication 2025-05-20
Vendor Cve Last vendor Modification 2025-05-21

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
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Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

In the Linux kernel, the following vulnerability has been resolved:

spi: spi-mem: Add fix to avoid divide error

For some SPI flash memory operations, dummy bytes are not mandatory. For example, in Winbond SPINAND flash memory devices, the `write_cache` and `update_cache` operation variants have zero dummy bytes. Calculating the duration for SPI memory operations with zero dummy bytes causes a divide error when `ncycles` is calculated in the spi_mem_calc_op_duration().

Add changes to skip the 'ncylcles' calculation for zero dummy bytes.

Following divide error is fixed by this change:

Oops: divide error: 0000 [#1] PREEMPT SMP NOPTI ...

? do_trap+0xdb/0x100
? do_error_trap+0x75/0xb0
? spi_mem_calc_op_duration+0x56/0xb0
? exc_divide_error+0x3b/0x70
? spi_mem_calc_op_duration+0x56/0xb0
? asm_exc_divide_error+0x1b/0x20
? spi_mem_calc_op_duration+0x56/0xb0
? spinand_select_op_variant+0xee/0x190 [spinand]
spinand_match_and_init+0x13e/0x1a0 [spinand]
spinand_manufacturer_match+0x6e/0xa0 [spinand]
spinand_probe+0x357/0x7f0 [spinand]
? kernfs_activate+0x87/0xd0
spi_mem_probe+0x7a/0xb0
spi_probe+0x7d/0x130

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-37896

Sources (Detail)

https://git.kernel.org/stable/c/1915dbd67dadc0bb35670c8e28229baa29368d17
https://git.kernel.org/stable/c/8e4d3d8a5e51e07bd0d6cdd81b5e4af79f796927
Source Url

Alert History

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0
Date Informations
2025-05-26 21:20:41
  • First insertion