{"id":"CVE-2024-26910","summary":"netfilter: ipset: fix performance regression in swap operation","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: ipset: fix performance regression in swap operation\n\nThe patch \"netfilter: ipset: fix race condition between swap/destroy\nand kernel side add/del/test\", commit 28628fa9 fixes a race condition.\nBut the synchronize_rcu() added to the swap function unnecessarily slows\nit down: it can safely be moved to destroy and use call_rcu() instead.\n\nEric Dumazet pointed out that simply calling the destroy functions as\nrcu callback does not work: sets with timeout use garbage collectors\nwhich need cancelling at destroy which can wait. Therefore the destroy\nfunctions are split into two: cancelling garbage collectors safely at\nexecuting the command received by netlink and moving the remaining\npart only into the rcu callback.","modified":"2026-05-18T05:58:49.120594085Z","published":"2024-04-17T15:59:21.967Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26910.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/653bc5e6d9995d7d5f497c665b321875a626161c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/970709a67696b100a57b33af1a3d75fc34b747eb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/97f7cf1cd80eeed3b7c808b7c12463295c751001"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a24d5f2ac8ef702a58e55ec276aad29b4bd97e05"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b93a6756a01f4fd2f329a39216f9824c56a66397"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c2dc077d8f722a1c73a24e674f925602ee5ece49"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c7f2733e5011bfd136f1ca93497394d43aa76225"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26910.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-26910"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"427deb5ba5661c4ae1cfb35955d2e01bd5f3090a"},{"fixed":"c7f2733e5011bfd136f1ca93497394d43aa76225"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"e7152a138a5ac77439ff4e7a7533448a7d4c260d"},{"fixed":"a24d5f2ac8ef702a58e55ec276aad29b4bd97e05"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"8bb930c3a1eacec1b14817f565ff81667c7c5dfa"},{"fixed":"c2dc077d8f722a1c73a24e674f925602ee5ece49"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"875ee3a09e27b7adb7006ca6d16faf7f33415aa5"},{"fixed":"653bc5e6d9995d7d5f497c665b321875a626161c"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"23c31036f862582f98386120aee55c9ae23d7899"},{"fixed":"b93a6756a01f4fd2f329a39216f9824c56a66397"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"28628fa952fefc7f2072ce6e8016968cc452b1ba"},{"fixed":"970709a67696b100a57b33af1a3d75fc34b747eb"},{"fixed":"97f7cf1cd80eeed3b7c808b7c12463295c751001"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0"},{"last_affected":"a12606e5ad0cee8f4ba3ec68561c4d6275d2df57"}]}],"versions":["v5.4.268","v5.4.267","v5.4.266","v5.4.265","v5.4.264","v5.10.209","v5.10.208","v5.10.207","v5.10.206","v5.10.205","v5.10.204","v5.15.148","v5.15.147","v5.15.146","v5.15.145","v5.15.144","v5.15.143","v6.1.78","v6.1.77","v6.1.76","v6.1.75","v6.1.74","v6.1.73","v6.1.72","v6.1.71","v6.1.70","v6.1.69","v6.1.68","v6.6.17","v6.6.16","v6.6.15","v6.6.14","v6.6.13","v6.6.12","v6.6.11","v6.6.10","v6.6.9","v6.6.8","v6.6.7","v4.19.301","v4.19.300","v4.19.299","v4.19.298","v4.19.297","v4.19.296","v4.19.295","v4.19.294","v4.19.293","v4.19.292","v4.19.291","v4.19.290","v4.19.289","v4.19.288","v4.19.287","v4.19.286","v4.19.285","v4.19.284","v4.19.283","v4.19.282","v4.19.281","v4.19.280","v4.19.279","v4.19.278","v4.19.277","v4.19.276","v4.19.275","v4.19.274","v4.19.273","v4.19.272","v4.19.271","v4.19.270","v4.19.269","v4.19.268","v4.19.267","v4.19.266","v4.19.265","v4.19.264","v4.19.263","v4.19.262","v4.19.261","v4.19.260","v4.19.259","v4.19.258","v4.19.257","v4.19.256","v4.19.255","v4.19.254","v4.19.253","v4.19.252","v4.19.251","v4.19.250","v4.19.249","v4.19.248","v4.19.247","v4.19.246","v4.19.245","v4.19.244","v4.19.243","v4.19.242","v4.19.241","v4.19.240","v4.19.239","v4.19.238","v4.19.237","v4.19.236","v4.19.235","v4.19.234","v4.19.233","v4.19.232","v4.19.231","v4.19.230","v4.19.229","v4.19.228","v4.19.227","v4.19.226","v4.19.225","v4.19.224","v4.19.223","v4.19.222","v4.19.221","v4.19.220","v4.19.219","v4.19.218","v4.19.217","v4.19.216","v4.19.215","v4.19.214","v4.19.213","v4.19.212","v4.19.211","v4.19.210","v4.19.209","v4.19.208","v4.19.207","v4.19.206","v4.19.205","v4.19.204","v4.19.203","v4.19.202","v4.19.201","v4.19.200","v4.19.199","v4.19.198","v4.19.197","v4.19.196","v4.19.195","v4.19.194","v4.19.193","v4.19.192","v4.19.191","v4.19.190","v4.19.189","v4.19.188","v4.19.187","v4.19.186","v4.19.185","v4.19.184","v4.19.183","v4.19.182","v4.19.181","v4.19.180","v4.19.179","v4.19.178","v4.19.177","v4.19.176","v4.19.175","v4.19.174","v4.19.173","v4.19.172","v4.19.171","v4.19.170","v4.19.169","v4.19.168","v4.19.167","v4.19.166","v4.19.165","v4.19.164","v4.19.163","v4.19.162","v4.19.161","v4.19.160","v4.19.159","v4.19.158","v4.19.157","v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