{"id":"CVE-2026-89577","title":"dm-io: report non-retryable errors separatedly","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ndm-io: report non-retryable errors separatedly\n\nThe error codes BLK_STS_NOTSUPP and BLK_STS_INVAL should not cause leg\nfailure on dm-raid1. This patch changes the inter…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 5ff3f74e145adc79b49668adb8de276446acf6be < 49694a363f7ecd5a52d1ea1a13c287ad6d196c35","Linux >= 5ff3f74e145adc79b49668adb8de276446acf6be < 15fc1ec72e1f8089063d298550ada727e18f114a","Linux >= 5ff3f74e145adc79b49668adb8de276446acf6be < 47a5e62f39875f371bded6e34ffb9cf15ccd813d","Linux 6.18"],"published":"2026-09-11","updated":"2026-09-11","sourceUpdated":"2026-09-11T19:44:44.617Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-89577","references":[{"url":"https://git.kernel.org/stable/c/49694a363f7ecd5a52d1ea1a13c287ad6d196c35"},{"url":"https://git.kernel.org/stable/c/15fc1ec72e1f8089063d298550ada727e18f114a"},{"url":"https://git.kernel.org/stable/c/47a5e62f39875f371bded6e34ffb9cf15ccd813d"}],"tags":["cve.org"],"epss":0.00198,"epssPercentile":0.0983,"ingestedAt":"2026-09-14T11:11:19.886Z","slug":"CVE-2026-89577","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ndm-io: report non-retryable errors separatedly\n\nThe error codes BLK_STS_NOTSUPP and BLK_STS_INVAL should not cause leg\nfailure on dm-raid1. This patch changes the interface to dm-io, so that\nit reports two error bitmaps - error_bits and unsup_bits. The unsup_bit\nbitmap tracks BLK_STS_NOTSUPP or BLK_STS_INVAL errors, the error_bits\nbitmap tracks all the other errors.\n\ndm-raid1 is changed so that it won't fail a leg if it receives an error\nin the unsup_bits bitmap.\n\nThis patch (with 62dc37a819a5) fixes misbehavior if the user uses\nunaligned bio vectors on dm-raid1.\n\n## Affected\n\n- `Linux >= 5ff3f74e145adc79b49668adb8de276446acf6be < 49694a363f7ecd5a52d1ea1a13c287ad6d196c35`\n- `Linux >= 5ff3f74e145adc79b49668adb8de276446acf6be < 15fc1ec72e1f8089063d298550ada727e18f114a`\n- `Linux >= 5ff3f74e145adc79b49668adb8de276446acf6be < 47a5e62f39875f371bded6e34ffb9cf15ccd813d`\n- `Linux 6.18`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}