{"id":"CVE-2026-98755","title":"tty: vcc: zero-initialize control packet in vcc_send_ctl()","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ntty: vcc: zero-initialize control packet in vcc_send_ctl()\n\nThe stack-allocated struct vio_vcc pkt was partially initialized,\nleaving the tag.stype_env field uninitiali…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 6f1a08ef02825b440126c406ea63ef6128888e15","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 4335278d0e75395cbfaf71c84b521df56d69e936","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 399aa38af1d78001612e3130b2056ea392a355ca","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 1f71f565e3585da1098ff19ca3c24687dab59185","Linux < 6.12.113","Linux < 6.18.56","Linux < 7.2.10","Linux (all versions)"],"published":"2026-10-18","updated":"2026-10-18","sourceUpdated":"2026-10-18T15:47:41.106Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98755","references":[{"url":"https://git.kernel.org/stable/c/6f1a08ef02825b440126c406ea63ef6128888e15"},{"url":"https://git.kernel.org/stable/c/4335278d0e75395cbfaf71c84b521df56d69e936"},{"url":"https://git.kernel.org/stable/c/399aa38af1d78001612e3130b2056ea392a355ca"},{"url":"https://git.kernel.org/stable/c/1f71f565e3585da1098ff19ca3c24687dab59185"}],"tags":["cve.org"],"ingestedAt":"2026-10-18T16:47:32.497Z","slug":"CVE-2026-98755","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ntty: vcc: zero-initialize control packet in vcc_send_ctl()\n\nThe stack-allocated struct vio_vcc pkt was partially initialized,\nleaving the tag.stype_env field uninitialized before being sent via\nldc_write(), potentially leaking kernel stack data to the LDC peer.\n\n## Affected\n\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 6f1a08ef02825b440126c406ea63ef6128888e15`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 4335278d0e75395cbfaf71c84b521df56d69e936`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 399aa38af1d78001612e3130b2056ea392a355ca`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 1f71f565e3585da1098ff19ca3c24687dab59185`\n- `Linux < 6.12.113`\n- `Linux < 6.18.56`\n- `Linux < 7.2.10`\n- `Linux (all versions)`\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":[]}