{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-90416","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-11T19:38:34.813Z","datePublished":"2026-09-17T16:09:41.372Z","dateUpdated":"2026-09-17T16:09:41.372Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-17T16:09:41.372Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/mlx5: Fix stack out-of-bounds read in cc_params debugfs\n\nget_param() reads a congestion parameter as a u32 but formats it with the\nsigned \"%d\" into an 11-byte stack buffer. A value with bit 31 set, such as\n0x80000000, renders as \"-2147483648\\n\" whose full length is 12. snprintf()\nstores only 11 bytes yet returns 12, so simple_read_from_buffer() treats 12\nbytes as valid and reads one byte past lbuf[].\n\nSize the buffer for the widest unsigned decimal, format with \"%u\" to match\nthe u32, and use scnprintf() so the length passed to\nsimple_read_from_buffer() reflects the bytes actually stored."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/infiniband/hw/mlx5/cong.c"],"versions":[{"version":"4a2da0b8c0782816f3ae6846ae7942fcbb0f8172","lessThan":"1c5b4f76cd73372c5a8a4c91c95d5a31f141e091","status":"affected","versionType":"git"},{"version":"4a2da0b8c0782816f3ae6846ae7942fcbb0f8172","lessThan":"06b62758f81e27ca4c81201c22e3436c6d9ac894","status":"affected","versionType":"git"},{"version":"4a2da0b8c0782816f3ae6846ae7942fcbb0f8172","lessThan":"d809cf3f0ed9255abfc73c4730bcf187151422af","status":"affected","versionType":"git"},{"version":"4a2da0b8c0782816f3ae6846ae7942fcbb0f8172","lessThan":"0b0122fcc923a0271130f5fb71af2cd7e20434d9","status":"affected","versionType":"git"},{"version":"4a2da0b8c0782816f3ae6846ae7942fcbb0f8172","lessThan":"ce8dfd32a33b578c3abf178f67b4c8d36854f041","status":"affected","versionType":"git"},{"version":"4a2da0b8c0782816f3ae6846ae7942fcbb0f8172","lessThan":"4599311e78e88c893ad551aca622de2bfdf1c31f","status":"affected","versionType":"git"},{"version":"4a2da0b8c0782816f3ae6846ae7942fcbb0f8172","lessThan":"c75ee076fa09778a2f9602a972dade4a0b0785f7","status":"affected","versionType":"git"},{"version":"4a2da0b8c0782816f3ae6846ae7942fcbb0f8172","lessThan":"03826bc1fa6c90405bf05831f2b501a8368dcd27","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/infiniband/hw/mlx5/cong.c"],"versions":[{"version":"4.14","status":"affected"},{"version":"0","lessThan":"4.14","status":"unaffected","versionType":"semver"},{"version":"5.10.270","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.221","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.188","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.157","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.110","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.52","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.6","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3-rc1","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"5.10.270"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"5.15.221"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"6.1.188"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"6.6.157"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"6.18.52"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"7.3-rc1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/1c5b4f76cd73372c5a8a4c91c95d5a31f141e091"},{"url":"https://git.kernel.org/stable/c/06b62758f81e27ca4c81201c22e3436c6d9ac894"},{"url":"https://git.kernel.org/stable/c/d809cf3f0ed9255abfc73c4730bcf187151422af"},{"url":"https://git.kernel.org/stable/c/0b0122fcc923a0271130f5fb71af2cd7e20434d9"},{"url":"https://git.kernel.org/stable/c/ce8dfd32a33b578c3abf178f67b4c8d36854f041"},{"url":"https://git.kernel.org/stable/c/4599311e78e88c893ad551aca622de2bfdf1c31f"},{"url":"https://git.kernel.org/stable/c/c75ee076fa09778a2f9602a972dade4a0b0785f7"},{"url":"https://git.kernel.org/stable/c/03826bc1fa6c90405bf05831f2b501a8368dcd27"}],"title":"RDMA/mlx5: Fix stack out-of-bounds read in cc_params debugfs","x_generator":{"engine":"bippy-1.2.0"}}}}