{"id":"CVE-2026-72298","title":"net: qrtr: fix 32-bit integer overflow in qrtr_endpoint_post()","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: qrtr: fix 32-bit integer overflow in qrtr_endpoint_post()\n\nqrtr_endpoint_post() validates an incoming packet with\n\n\tif (!size || len != ALIGN(size, 4) + hdrlen)\n\t\t…","severity":"high","cvss":8.4,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= 960b08dd36de1e341e3eb43d1c547513e338f4f8 < 3665e644ea081c4624a1637023b0de3b29f4ae04","Linux >= ad9d24c9429e2159d1e279dc3a83191ccb4daf1d < b609f7f46916c6b05585ca82455077198a23770f","Linux >= ad9d24c9429e2159d1e279dc3a83191ccb4daf1d < 242408b5b763c01288adf3113cbce84378a76e1a","Linux >= ad9d24c9429e2159d1e279dc3a83191ccb4daf1d < d0597074e99731fdad5593e4f6d056a3866f2cab","Linux >= ad9d24c9429e2159d1e279dc3a83191ccb4daf1d < 689b7267f8632b4661879dc323e26ebb60978afb","Linux >= ad9d24c9429e2159d1e279dc3a83191ccb4daf1d < 22100a8f73d4ae4f17697dae93d4e2e1d283a6ec","Linux >= ad9d24c9429e2159d1e279dc3a83191ccb4daf1d < 7f72c285f6d3bf63968a0344beee8ab1b370198b","Linux >= ad9d24c9429e2159d1e279dc3a83191ccb4daf1d < 20054869770c7df060c5ecee3e8bbf9029c47191","Linux f8111c0d7ed42ede41a3d0d393b104de0730a8a6","Linux 26b8d10703a9be45d6097946b2b4011f7dd2c56f","Linux 19892ab9c9d838e2e5a7744d36e4bb8b7c3292fe","Linux >= 5.10.46 < 5.10.261","Linux >= 4.19.196 < 4.20","Linux >= 5.4.128 < 5.5","Linux >= 5.12.13 < 5.13","Linux 5.13"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T18:46:01.998827Z"},"published":"2026-08-15","updated":"2026-10-16","sourceUpdated":"2026-10-16T18:55:15.699Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-72298","references":[{"url":"https://git.kernel.org/stable/c/3665e644ea081c4624a1637023b0de3b29f4ae04"},{"url":"https://git.kernel.org/stable/c/b609f7f46916c6b05585ca82455077198a23770f"},{"url":"https://git.kernel.org/stable/c/242408b5b763c01288adf3113cbce84378a76e1a"},{"url":"https://git.kernel.org/stable/c/d0597074e99731fdad5593e4f6d056a3866f2cab"},{"url":"https://git.kernel.org/stable/c/689b7267f8632b4661879dc323e26ebb60978afb"},{"url":"https://git.kernel.org/stable/c/22100a8f73d4ae4f17697dae93d4e2e1d283a6ec"},{"url":"https://git.kernel.org/stable/c/7f72c285f6d3bf63968a0344beee8ab1b370198b"},{"url":"https://git.kernel.org/stable/c/20054869770c7df060c5ecee3e8bbf9029c47191"}],"tags":["cve.org"],"epss":0.00185,"epssPercentile":0.07563,"ingestedAt":"2026-10-16T19:46:24.411Z","slug":"CVE-2026-72298","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnet: qrtr: fix 32-bit integer overflow in qrtr_endpoint_post()\n\nqrtr_endpoint_post() validates an incoming packet with\n\n\tif (!size || len != ALIGN(size, 4) + hdrlen)\n\t\tgoto err;\n\nwhere size comes from the wire. On 32-bit, size_t is 32 bits and\nALIGN(size, 4) wraps to 0 for size >= 0xfffffffd, so the check\npasses and skb_put_data(skb, data + hdrlen, size) writes past the\nhdrlen-sized skb and oopses the kernel. 64-bit is unaffected.\n\nThis is the 32-bit residual of ad9d24c9429e2 (\"net: qrtr: fix OOB\nRead in qrtr_endpoint_post\"), which fixed only the 64-bit case.\n\nReject any size that cannot fit the buffer before the ALIGN.\n\n## Affected\n\n- `Linux >= 960b08dd36de1e341e3eb43d1c547513e338f4f8 < 3665e644ea081c4624a1637023b0de3b29f4ae04`\n- `Linux >= ad9d24c9429e2159d1e279dc3a83191ccb4daf1d < b609f7f46916c6b05585ca82455077198a23770f`\n- `Linux >= ad9d24c9429e2159d1e279dc3a83191ccb4daf1d < 242408b5b763c01288adf3113cbce84378a76e1a`\n- `Linux >= ad9d24c9429e2159d1e279dc3a83191ccb4daf1d < d0597074e99731fdad5593e4f6d056a3866f2cab`\n- `Linux >= ad9d24c9429e2159d1e279dc3a83191ccb4daf1d < 689b7267f8632b4661879dc323e26ebb60978afb`\n- `Linux >= ad9d24c9429e2159d1e279dc3a83191ccb4daf1d < 22100a8f73d4ae4f17697dae93d4e2e1d283a6ec`\n- `Linux >= ad9d24c9429e2159d1e279dc3a83191ccb4daf1d < 7f72c285f6d3bf63968a0344beee8ab1b370198b`\n- `Linux >= ad9d24c9429e2159d1e279dc3a83191ccb4daf1d < 20054869770c7df060c5ecee3e8bbf9029c47191`\n- `Linux f8111c0d7ed42ede41a3d0d393b104de0730a8a6`\n- `Linux 26b8d10703a9be45d6097946b2b4011f7dd2c56f`\n- `Linux 19892ab9c9d838e2e5a7744d36e4bb8b7c3292fe`\n- `Linux >= 5.10.46 < 5.10.261`\n- `Linux >= 4.19.196 < 4.20`\n- `Linux >= 5.4.128 < 5.5`\n- `Linux >= 5.12.13 < 5.13`\n- `Linux 5.13`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":46,"depthScoreParts":{"impact":46.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}