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CVE-2026-89577

dm-io: report non-retryable errors separatedly

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 6.18.50, 7.2.4
None on Exploit-DB, Metasploit or GitHub

Summary

In the Linux kernel, the following vulnerability has been resolved: dm-io: report non-retryable errors separatedly The error codes BLK_STS_NOTSUPP and BLK_STS_INVAL should not cause leg failure on dm-raid1. This patch changes the interface to dm-io, so that it reports two error bitmaps - error_bits and unsup_bits. The unsup_bit bitmap tracks BLK_STS_NOTSUPP or BLK_STS_INVAL errors, the error_bits bitmap tracks all the other errors. dm-raid1 is changed so that it won't fail a leg if it receives an error in the unsup_bits bitmap. This patch (with 62dc37a819a5) fixes misbehavior if the user uses unaligned bio vectors on dm-raid1.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    From 5ff3f74e145adc79b49668adb8de276446acf6be · fixed in 49694a363f7ecd5a52d1ea1a13c287ad6d196c35; From 5ff3f74e145adc79b49668adb8de276446acf6be · fixed in 15fc1ec72e1f8089063d298550ada727e18f114a; From 5ff3f74e145adc79b49668adb8de276446acf6be · fixed in 47a5e62f39875f371bded6e34ffb9cf15ccd813d

  • Linux Linux

    6.18

  • KernelLinux

    From 6.18.0 · fixed in 6.18.50; From 6.19.0 · fixed in 7.2.4

References 3

git.kernel.org