{"id":"CVE-2026-53150","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nthunderbolt: Reject zero-length property entries in validator\n\ntb_property_entry_valid() accepts entries with length == 0 for\nDIRECTORY, DATA, and TEXT types","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nthunderbolt: Reject zero-length property entries in validator\n\ntb_property_entry_valid() accepts entries with length == 0 for\nDIRECTORY, DATA, and TEXT types.  A zero-l…","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-191"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 4.15, < 5.10.259","linux_kernel >= 5.11, < 5.15.210","linux_kernel >= 5.16, < 6.1.176","linux_kernel >= 6.2, < 6.6.143","linux_kernel >= 6.7, < 6.12.94","linux_kernel >= 6.13, < 6.18.36","linux_kernel >= 6.19, < 7.0.13","linux_kernel = 7.1"],"patched":["linux_kernel 7.0.13"],"published":"2026-06-25","updated":"2026-07-06","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-53150","references":[{"url":"https://git.kernel.org/stable/c/2e0ddac549ebd713eb9f4a15b6496e3440a17d8b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/35d6c9252a152e756768a26dbf216b9dd9dd8e92","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/3b6e68cb97f725385010264a873e14a3921b6b8a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/581c2053ab4dbe27e83c9e62deb4c73aa8dc0c3a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5f56bc6bddffe8710ba0ba8844023b5a44ca90e4","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/99d9dbad1463afb510d42c9714f846361d1b726d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ca11e7da4fba4b394f69e16448f4463c44c84de6","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/cff8eb65d1eafe7793e54b4d0cf6bf831644630b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd"],"epss":0.00123,"epssPercentile":0.02356,"ingestedAt":"2026-07-06T18:45:21.305Z","slug":"CVE-2026-53150","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nthunderbolt: Reject zero-length property entries in validator\n\ntb_property_entry_valid() accepts entries with length == 0 for\nDIRECTORY, DATA, and TEXT types.  A zero-length TEXT entry passes\nvalidation but causes an underflow in the null-termination logic:\n\n  property->value.text[property->length * 4 - 1] = '\\0';\n\nWhen property->length is 0 this writes to offset -1 relative to\nthe allocation.\n\nReject zero-length entries early in the validator since they have no\nvalid representation in the XDomain property protocol.\n\n## Affected\n\n- `linux_kernel >= 4.15, < 5.10.259`\n- `linux_kernel >= 5.11, < 5.15.210`\n- `linux_kernel >= 5.16, < 6.1.176`\n- `linux_kernel >= 6.2, < 6.6.143`\n- `linux_kernel >= 6.7, < 6.12.94`\n- `linux_kernel >= 6.13, < 6.18.36`\n- `linux_kernel >= 6.19, < 7.0.13`\n- `linux_kernel = 7.1`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 7.0.13`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}