{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-09-20T08:57:13.921","vulnerabilities":[{"cve":{"id":"CVE-2026-80844","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2026-09-04T16:18:13.023","lastModified":"2026-09-04T16:18:13.023","vulnStatus":"Received","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nxfrm: ah6: validate routing header segments_left\n\nAH6 rearranges routing-header addresses before computing or verifying the\nICV. ipv6_rearrange_rthdr() assumes that segments_left is not larger than\nthe number of addresses described by the routing header's hdrlen field.\n\nThat assumption does not hold for raw IPv6 HDRINCL packets. A packet with\nhdrlen equal to 2 describes one address, but can carry an arbitrary\nsegments_left value. With segments_left equal to 255, the function moves\nits address pointer 4,064 bytes backwards and passes a 4,064-byte length to\nmemmove(), resulting in an out-of-bounds access.\n\nValidate the invariant locally before modifying the routing header or\nperforming any address-pointer arithmetic, and propagate malformed-header\nerrors to the existing AH6 input and output error paths."}],"affected":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","affectedData":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["net/ipv6/ah6.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"2dc650956e4e163b879b3fb1027f9557abc5c985","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"48b0e36cf54358276ee7aa897034c973097d2bc9","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"1b7e066eabcc7d6d8f476c34739b45932f2f4c31","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"f00df8500e5a36ba70d336fd34bd2152ea074e5f","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"1516e31ac458a738be485620579d8f7fb2700fcb","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"6733ae71268a27d598cfb3f3339a3c950b9b656d","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"0bf11081ad3753938a2b48723ce6298dbac743a1","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"46640c814f25f096b0b0045ca50e1b7030cd8a30","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"7bad4bda74dc4713f398d3b7624ff05478e3a568","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["net/ipv6/ah6.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"2.6.12","status":"affected"},{"version":"0","lessThan":"2.6.12","versionType":"semver","status":"unaffected"},{"version":"5.10.269","lessThanOrEqual":"5.10.*","versionType":"semver","status":"unaffected"},{"version":"5.15.220","lessThanOrEqual":"5.15.*","versionType":"semver","status":"unaffected"},{"version":"6.1.187","lessThanOrEqual":"6.1.*","versionType":"semver","status":"unaffected"},{"version":"6.6.156","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.108","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.49","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.13","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2.3","lessThanOrEqual":"7.2.*","versionType":"semver","status":"unaffected"},{"version":"7.3-rc1","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]}],"metrics":{},"references":[{"url":"https://git.kernel.org/stable/c/0bf11081ad3753938a2b48723ce6298dbac743a1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/1516e31ac458a738be485620579d8f7fb2700fcb","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/1b7e066eabcc7d6d8f476c34739b45932f2f4c31","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/2dc650956e4e163b879b3fb1027f9557abc5c985","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/46640c814f25f096b0b0045ca50e1b7030cd8a30","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/48b0e36cf54358276ee7aa897034c973097d2bc9","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6733ae71268a27d598cfb3f3339a3c950b9b656d","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7bad4bda74dc4713f398d3b7624ff05478e3a568","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f00df8500e5a36ba70d336fd34bd2152ea074e5f","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}]}}]}