{"id":"DEBIAN-CVE-2024-56780","details":"In the Linux kernel, the following vulnerability has been resolved:  quota: flush quota_release_work upon quota writeback  One of the paths quota writeback is called from is:  freeze_super()   sync_filesystem()     ext4_sync_fs()       dquot_writeback_dquots()  Since we currently don't always flush the quota_release_work queue in this path, we can end up with the following race:   1. dquot are added to releasing_dquots list during regular operations.  2. FS Freeze starts, however, this does not flush the quota_release_work queue.  3. Freeze completes.  4. Kernel eventually tries to flush the workqueue while FS is frozen which     hits a WARN_ON since transaction gets started during frozen state:    ext4_journal_check_start+0x28/0x110 [ext4] (unreliable)   __ext4_journal_start_sb+0x64/0x1c0 [ext4]   ext4_release_dquot+0x90/0x1d0 [ext4]   quota_release_workfn+0x43c/0x4d0  Which is the following line:    WARN_ON(sb-\u003es_writers.frozen == SB_FREEZE_COMPLETE);  Which ultimately results in generic/390 failing due to dmesg noise. This was detected on powerpc machine 15 cores.  To avoid this, make sure to flush the workqueue during dquot_writeback_dquots() so we dont have any pending workitems after freeze.","modified":"2026-09-15T09:02:59.959600037Z","published":"2025-01-08T18:15:18.910Z","upstream":["CVE-2024-56780"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2024-56780"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.123-1"}]}],"versions":["6.1.106-1","6.1.106-2","6.1.106-3","6.1.112-1","6.1.115-1","6.1.119-1","6.1.27-1","6.1.37-1","6.1.38-1","6.1.38-2","6.1.38-2~bpo11+1","6.1.38-3","6.1.38-4","6.1.38-4~bpo11+1","6.1.52-1","6.1.55-1","6.1.55-1~bpo11+1","6.1.64-1","6.1.66-1","6.1.67-1","6.1.69-1","6.1.69-1~bpo11+1","6.1.76-1","6.1.76-1~bpo11+1","6.1.82-1","6.1.85-1","6.1.90-1","6.1.90-1~bpo11+1","6.1.94-1","6.1.94-1~bpo11+1","6.1.98-1","6.1.99-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-56780.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.5-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-56780.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.5-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-56780.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}