CVE-2026-98207: linux

CVSS: UnknownReceived
AliasesUBUNTU-CVE-2026-98207DEBIAN-CVE-2026-98207
Published 06-10-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-98207 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 7.6% of scored vulnerabilities.

Overall risk
0/100
0100
Minimal · default modelHow is this calculated?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.18%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2026:12131-1

Timeline

  1. 06-10-2026
    PublishedVulnerability first disclosed.
  2. 19-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: mmc: spi: reset bytes_xfered before retrying CRC failures mmc_spi_data_do() updates data->bytes_xfered after each block has been transferred successfully. If a later block in the same data request fails with a CRC error, data->bytes_xfered may therefore contain the number of bytes completed before the failing block. mmc_spi_request() has a private recovery path for such CRC failures. It sends STOP_TRANSMISSION, clears data->error and jumps back to crc_recover to issue the same command and data request again. However, it does not clear data->bytes_xfered before the retry. If the retry succeeds, the request is completed with the bytes from the failed attempt still included in data->bytes_xfered. For a multi-block request this can make the completed request report more bytes than were transferred by the successful retry, and can even exceed the request size when most blocks completed before the CRC error. This is most likely to be observed on MMC-over-SPI systems where long multi-block transfers occasionally hit a data CRC error but the mmc_spi-internal retry succeeds. The data itself is retried, but the completion accounting is not. Clear data->bytes_xfered together with data->error before repeating the request so the final completion reports only the bytes transferred by the successful attempt.

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.18%

Chance of exploitation in the next 30 days

Percentile

8%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

06-10-202621-10-2026
EPSS score
0.18%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu169 products
  • linuxAll versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linuxAll versions (No fix recorded) | < 6.1.190-1 | < 6.12.113-1 | < 7.2.8-1
Linux1 product
  • linux≥ 061c6c847eeb11743e489a16e907b41c6f9042b6, < 7d2f0ec16b300645f20435a6c3827b15e01419af | ≥ 061c6c847eeb11743e489a16e907b41c6f9042b6, < d1acf4b9f6e9697406ce84ee9acfb92e094d5c7a | ≥ 061c6c847eeb11743e489a16e907b41c6f9042b6, < 0b8c8504593409954ed1a60db4e437d814e04023 | ≥ 061c6c847eeb11743e489a16e907b41c6f9042b6, < da4929ee78ee701c3717543840798fedff66c430 | ≥ 061c6c847eeb11743e489a16e907b41c6f9042b6, < 57f5e29db63f7c80f1805d89234a74dcdbf60231 | ≥ 061c6c847eeb11743e489a16e907b41c6f9042b6, < 4885e587f1afa9e1a573ab66f8c4d94d7b836d86 | ≥ 061c6c847eeb11743e489a16e907b41c6f9042b6, < 3ae80c1fb7de4d3331427a955a44807745ac5a33 | ≥ 061c6c847eeb11743e489a16e907b41c6f9042b6, < 8b0cc8707f65e0f51912e764e1b309b2559db1ec | 2.6.37

3 vendors · 171 products

References

12 links
Show all 12 references