{"id":"CVE-2026-23335","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/irdma: Fix kernel stack leak in irdma_create_user_ah()\n\nstruct irdma_create_ah_resp {  // 8 bytes, no padding\n    __u32 ah_id;               // offset 0 - SET (ure…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/irdma: Fix kernel stack leak in irdma_create_user_ah()\n\nstruct irdma_create_ah_resp {  // 8 bytes, no padding\n    __u32 ah_id;               // offset 0 - SET (ure…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-401"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 5.14.1, < 5.15.203","linux_kernel >= 5.16, < 6.1.167","linux_kernel >= 6.2, < 6.6.130","linux_kernel >= 6.7, < 6.12.77","linux_kernel >= 6.13, < 6.18.17","linux_kernel >= 6.19, < 6.19.7","linux_kernel = 5.14","linux_kernel = 7.0"],"patched":["linux_kernel 6.19.7"],"published":"2026-03-25","updated":"2026-10-15","sourceUpdated":"2026-10-15T02:18:50.010","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-23335","references":[{"url":"https://git.kernel.org/stable/c/14b47c07c69930254f549a17ee245c80a65b1609","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/1b1fac4c7a3ab7f52e9cfb91e5c91216646ca4d8","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/1f70df004fdd944653013ccc2e1dfd472a693b46","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/2fd37450d271d74b3847baed284f9cfdf198c6f8","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/74586c6da9ea222a61c98394f2fc0a604748438c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/c9bd0007c4bdb7806bbd323287e50f9cf467c51a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/cfe962216c164fe2b1c1fb6ac925a7413f5abc84","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-019113.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-082556.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-457936.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org"],"epss":0.00134,"epssPercentile":0.02866,"ingestedAt":"2026-09-08T15:33:26.993Z","slug":"CVE-2026-23335","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/irdma: Fix kernel stack leak in irdma_create_user_ah()\n\nstruct irdma_create_ah_resp {  // 8 bytes, no padding\n    __u32 ah_id;               // offset 0 - SET (uresp.ah_id = ah->sc_ah.ah_info.ah_idx)\n    __u8  rsvd[4];             // offset 4 - NEVER SET <- LEAK\n};\n\nrsvd[4]: 4 bytes of stack memory leaked unconditionally. Only ah_id is assigned before ib_respond_udata().\n\nThe reserved members of the structure were not zeroed.\n\n## Affected\n\n- `linux_kernel >= 5.14.1, < 5.15.203`\n- `linux_kernel >= 5.16, < 6.1.167`\n- `linux_kernel >= 6.2, < 6.6.130`\n- `linux_kernel >= 6.7, < 6.12.77`\n- `linux_kernel >= 6.13, < 6.18.17`\n- `linux_kernel >= 6.19, < 6.19.7`\n- `linux_kernel = 5.14`\n- `linux_kernel = 7.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.19.7`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":221661,"id":"CVE-2026-23335","ts":1792035309655,"field":"cvss","old":null,"new":"5.5"},{"seq":221660,"id":"CVE-2026-23335","ts":1792035309655,"field":"severity","old":"none","new":"medium"}]}