{"schema_version":"1.9.0","id":"CVE-2024-56780","published":"2025-01-08T17:49:17.889Z","modified":"2026-08-12T03:51:35.064837383Z","related":["SUSE-SU-2025:0289-1","SUSE-SU-2025:0428-1","SUSE-SU-2025:0499-1","SUSE-SU-2025:0557-1","SUSE-SU-2025:20165-1","SUSE-SU-2025:20166-1","SUSE-SU-2025:20248-1","SUSE-SU-2025:20249-1","USN-7379-2","USN-7380-1"],"summary":"quota: flush quota_release_work upon quota writeback","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nquota: flush quota_release_work upon quota writeback\n\nOne of the paths quota writeback is called from is:\n\nfreeze_super()\n  sync_filesystem()\n    ext4_sync_fs()\n      dquot_writeback_dquots()\n\nSince we currently don't always flush the quota_release_work queue in\nthis path, we can end up with the following race:\n\n 1. dquot are added to releasing_dquots list during regular operations.\n 2. FS Freeze starts, however, this does not flush the quota_release_work queue.\n 3. Freeze completes.\n 4. Kernel eventually tries to flush the workqueue while FS is frozen which\n    hits a WARN_ON since transaction gets started during frozen state:\n\n  ext4_journal_check_start+0x28/0x110 [ext4] (unreliable)\n  __ext4_journal_start_sb+0x64/0x1c0 [ext4]\n  ext4_release_dquot+0x90/0x1d0 [ext4]\n  quota_release_workfn+0x43c/0x4d0\n\nWhich is the following line:\n\n  WARN_ON(sb->s_writers.frozen == SB_FREEZE_COMPLETE);\n\nWhich ultimately results in generic/390 failing due to dmesg\nnoise. This was detected on powerpc machine 15 cores.\n\nTo avoid this, make sure to flush the workqueue during\ndquot_writeback_dquots() so we dont have any pending workitems after\nfreeze.","affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"d40c192e119892799dd4ddf94f5cea6fa93775ef"},{"fixed":"a5abba5e0e586e258ded3e798fe5f69c66fec198"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"86d89987f0998c98f57d641e308b40452a994045"},{"fixed":"6f3821acd7c3143145999248087de5fb4b48cf26"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"89602de9a2d7080b7a4029d5c1bf8f78d295ff5f"},{"fixed":"ab6cfcf8ed2c7496f55d020b65b1d8cd55d9a2cb"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"3027e200dd58d5b437f16634dbbd355b29ffe0a6"},{"fixed":"3e6ff207cd5bd924ad94cd1a7c633bcdac0ba1cb"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"dabc8b20756601b9e1cc85a81d47d3f98ed4d13a"},{"fixed":"bcacb52a985f1b6d280f698a470b873dfe52728a"},{"fixed":"8ea87e34792258825d290f4dc5216276e91cb224"},{"fixed":"ac6f420291b3fee1113f21d612fa88b628afab5b"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0"},{"last_affected":"f3e9a2bbdeb8987508dd6bb2b701dea911d4daec"},{"last_affected":"903fc5d8cb48b0d2de7095ef40e39fd32bb27bd0"},{"last_affected":"31bed65eecbc5ce57592cfe31947eaa64e3d678e"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"5.4.257"},{"fixed":"5.4.287"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"5.10.195"},{"fixed":"5.10.231"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"5.15.132"},{"fixed":"5.15.174"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.1.53"},{"fixed":"6.1.120"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"4.19.295"},{"fixed":"4.20"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.4.16"},{"fixed":"6.5"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.5.3"},{"fixed":"6.6"}]}],"versions":["v5.4.286","v5.4.285","v5.4.284","v5.4.283","v5.4.282","v5.4.281","v5.4.280","v5.4.279","v5.4.278","v5.4.277","v5.4.276","v5.4.275","v5.4.274","v5.4.273","v5.4.272","v5.4.271","v5.4.270","v5.4.269","v5.4.268","v5.4.267","v5.4.266","v5.4.265","v5.4.264","v5.4.263","v5.4.262","v5.4.261","v5.4.260","v5.4.259","v5.4.258","v5.4.257","v5.10.230","v5.10.229","v5.10.228","v5.10.227","v5.10.226","v5.10.225","v5.10.224","v5.10.223","v5.10.222","v5.10.221","v5.10.220","v5.10.219","v5.10.218","v5.10.217","v5.10.216","v5.10.215","v5.10.214","v5.10.213","v5.10.212","v5.10.211","v5.10.210","v5.10.209","v5.10.208","v5.10.207","v5.10.206","v5.10.205","v5.10.204","v5.10.203","v5.10.202","v5.10.201","v5.10.200","v5.10.199","v5.10.198","v5.10.197","v5.10.196","v5.10.195","v5.15.173","v5.15.172","v5.15.171","v5.15.170","v5.15.169","v5.15.168","v5.15.167","v5.15.166","v5.15.165","v5.15.164","v5.15.163","v5.15.162","v5.15.161","v5.15.160","v5.15.159","v5.15.158","v5.15.157","v5.15.156","v5.15.155","v5.15.154","v5.15.153","v5.15.152","v5.15.151","v5.15.150","v5.15.149","v5.15.148","v5.15.147","v5.15.146","v5.15.145","v5.15.144","v5.15.143","v5.15.142","v5.15.141","v5.15.140","v5.15.139","v5.15.138","v5.15.137","v5.15.136","v5.15.135","v5.15.134","v5.15.133","v5.15.132","v6.1.119","v6.1.118","v6.1.117","v6.1.116","v6.1.115","v6.1.114","v6.1.113","v6.1.112","v6.1.111","v6.1.110","v6.1.109","v6.1.108","v6.1.107","v6.1.106","v6.1.105","v6.1.104","v6.1.103","v6.1.102","v6.1.101","v6.1.100","v6.1.99","v6.1.98","v6.1.97","v6.1.96","v6.1.95","v6.1.94","v6.1.93","v6.1.92","v6.1.91","v6.1.90","v6.1.89","v6.1.88","v6.1.87","v6.1.86","v6.1.85","v6.1.84","v6.1.83","v6.1.82","v6.1.81","v6.1.80","v6.1.79","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","v6.1.67","v6.1.66","v6.1.65","v6.1.64","v6.1.63","v6.1.62","v6.1.61","v6.1.60","v6.1.59","v6.1.58","v6.1.57","v6.1.56","v6.1.55","v6.1.54","v6.1.53","v6.5","v4.19.294","v6.5-rc1","v6.5.2","v6.4.15","v6.5-rc2","v6.4.14","v6.5.1","v6.5-rc7","v4.19.293","v6.4.13","v4.19.292","v6.4.12","v6.5-rc4","v6.5-rc3","v6.4.11","v6.5-rc6","v6.4.10","v4.19.291","v6.5-rc5","v6.4.9","v4.19.290","v6.4.8","v4.19.289","v6.4.7","v6.4.6","v4.19.288","v6.4.5","v6.4.4","v6.4.3","v6.4","v6.4.2","v6.4-rc7","v6.4-rc1","v6.4.1","v6.4-rc6","v4.19.287","v6.4-rc5","v6.4-rc3","v4.19.286","v6.4-rc4","v6.4-rc2","v4.19.285","v4.19.284","v4.19.283","v4.19.282","v6.3","v6.3-rc1","v4.19.281","v6.3-rc7",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