{"id":"AZL-111254","summary":"CVE-2026-99135 affecting package kernel 6.6.157.1-1","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndm-integrity: fix infinite loop on discard with large tag size\n\nWhen integrity_metadata handles a discard, it fills a buffer with\nDISCARD_FILLER and writes it over the tags, max_blocks blocks at a\ntime. If the kmalloc fails, the buffer is the on-stack array\nchecksums_onstack and max_size is set to HASH_MAX_DIGESTSIZE. So if the\ntag size is larger than HASH_MAX_DIGESTSIZE, max_blocks is zero, bi_size\nis never decremented and the loop never terminates.\n\nFix this by using sizeof(checksums_onstack) as max_size. The array has\nMAX_TAG_SIZE bytes since commit b93b6643e9b5 (\"dm integrity: fix a\ncrash with unusually large tag size\"), so max_blocks is at least 1.","modified":"2026-10-29T14:16:54.083345447Z","published":"2026-10-28T11:17:33Z","upstream":["CVE-2026-99135"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-99135"}],"affected":[{"package":{"name":"kernel","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"6.6.157.1-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-111254.json"}}],"schema_version":"1.9.2"}