{"id":"CVE-2024-46745","state":"PUBLISHED","title":"Input: uinput - reject requests with unreasonable number of slots","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nInput: uinput - reject requests with unreasonable number of slots\n\n\nWhen exercising uinput interface syzkaller may try setting up device\nwith a really large number of slots, which causes memory allocation\nfailure in input_mt_init_slots(). While this allocation failure is\nhandled properly and request is rejected, it results in syzkaller\nreports. Additionally, such request may put undue burden on the\nsystem which will try to free a lot of memory for a bogus request.\n\nFix it by limiting allowed number of slots to 100. This can easily\nbe extended if we see devices that can track more than 100 contacts.","publishedAt":"2024-09-18T07:12:05.798Z","updatedAt":"2026-10-15T00:50:34.565Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"38e7afe96c7c0ad900824911c61fdb04078033dc","status":"affected","lessThan":"9c6d189f0c1c59ba9a32326ec82a0b367a3cd47b","versionType":"git"},{"version":"38e7afe96c7c0ad900824911c61fdb04078033dc","status":"affected","lessThan":"597ff930296c4c8fc6b6a536884d4f1a7187ec70","versionType":"git"},{"version":"38e7afe96c7c0ad900824911c61fdb04078033dc","status":"affected","lessThan":"51fa08edd80003db700bdaa099385c5900d27f4b","versionType":"git"},{"version":"38e7afe96c7c0ad900824911c61fdb04078033dc","status":"affected","lessThan":"9719687398dea8a6a12a10321a54dd75eec7ab2d","versionType":"git"},{"version":"38e7afe96c7c0ad900824911c61fdb04078033dc","status":"affected","lessThan":"61df76619e270a46fd427fbdeb670ad491c42de2","versionType":"git"},{"version":"38e7afe96c7c0ad900824911c61fdb04078033dc","status":"affected","lessThan":"a4858b00a1ec57043697fb935565fe267f161833","versionType":"git"},{"version":"38e7afe96c7c0ad900824911c61fdb04078033dc","status":"affected","lessThan":"d76fc0f0b18d49b7e721c9e4975ef4bffde2f3e7","versionType":"git"},{"version":"38e7afe96c7c0ad900824911c61fdb04078033dc","status":"affected","lessThan":"206f533a0a7c683982af473079c4111f4a0f9f5e","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/input/misc/uinput.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.36","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.36","versionType":"semver"},{"version":"4.19.322","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.284","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.226","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.167","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.110","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.51","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.10.10","status":"unaffected","lessThanOrEqual":"6.10.*","versionType":"semver"},{"version":"6.11","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/input/misc/uinput.c"]}],"references":["https://git.kernel.org/stable/c/9c6d189f0c1c59ba9a32326ec82a0b367a3cd47b","https://git.kernel.org/stable/c/597ff930296c4c8fc6b6a536884d4f1a7187ec70","https://git.kernel.org/stable/c/51fa08edd80003db700bdaa099385c5900d27f4b","https://git.kernel.org/stable/c/9719687398dea8a6a12a10321a54dd75eec7ab2d","https://git.kernel.org/stable/c/61df76619e270a46fd427fbdeb670ad491c42de2","https://git.kernel.org/stable/c/a4858b00a1ec57043697fb935565fe267f161833","https://git.kernel.org/stable/c/d76fc0f0b18d49b7e721c9e4975ef4bffde2f3e7","https://git.kernel.org/stable/c/206f533a0a7c683982af473079c4111f4a0f9f5e","https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html","https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html","https://cert-portal.siemens.com/productcert/html/ssa-398330.html","https://cert-portal.siemens.com/productcert/html/ssa-265688.html","https://cert-portal.siemens.com/productcert/html/ssa-355557.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:07:47.831Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/46xxx/CVE-2024-46745.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-46745","state":"PUBLISHED","datePublished":"2024-09-18T07:12:05.798Z","dateUpdated":"2026-10-15T00:50:34.565Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-09-11T15:12:18.266Z"},"containers":{"cna":{"title":"Input: uinput - reject requests with unreasonable number of slots","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nInput: uinput - reject requests with unreasonable number of slots\n\n\nWhen exercising uinput interface syzkaller may try setting up device\nwith a really large number of slots, which causes memory allocation\nfailure in input_mt_init_slots(). 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