{"id":"DEBIAN-CVE-2025-22025","details":"In the Linux kernel, the following vulnerability has been resolved:  nfsd: put dl_stid if fail to queue dl_recall  Before calling nfsd4_run_cb to queue dl_recall to the callback_wq, we increment the reference count of dl_stid. We expect that after the corresponding work_struct is processed, the reference count of dl_stid will be decremented through the callback function nfsd4_cb_recall_release. However, if the call to nfsd4_run_cb fails, the incremented reference count of dl_stid will not be decremented correspondingly, leading to the following nfs4_stid leak: unreferenced object 0xffff88812067b578 (size 344):   comm \"nfsd\", pid 2761, jiffies 4295044002 (age 5541.241s)   hex dump (first 32 bytes):     01 00 00 00 6b 6b 6b 6b b8 02 c0 e2 81 88 ff ff  ....kkkk........     00 6b 6b 6b 6b 6b 6b 6b 00 00 00 00 ad 4e ad de  .kkkkkkk.....N..   backtrace:     kmem_cache_alloc+0x4b9/0x700     nfsd4_process_open1+0x34/0x300     nfsd4_open+0x2d1/0x9d0     nfsd4_proc_compound+0x7a2/0xe30     nfsd_dispatch+0x241/0x3e0     svc_process_common+0x5d3/0xcc0     svc_process+0x2a3/0x320     nfsd+0x180/0x2e0     kthread+0x199/0x1d0     ret_from_fork+0x30/0x50     ret_from_fork_asm+0x1b/0x30 unreferenced object 0xffff8881499f4d28 (size 368):   comm \"nfsd\", pid 2761, jiffies 4295044005 (age 5541.239s)   hex dump (first 32 bytes):     01 00 00 00 00 00 00 00 30 4d 9f 49 81 88 ff ff  ........0M.I....     30 4d 9f 49 81 88 ff ff 20 00 00 00 01 00 00 00  0M.I.... .......   backtrace:     kmem_cache_alloc+0x4b9/0x700     nfs4_alloc_stid+0x29/0x210     alloc_init_deleg+0x92/0x2e0     nfs4_set_delegation+0x284/0xc00     nfs4_open_delegation+0x216/0x3f0     nfsd4_process_open2+0x2b3/0xee0     nfsd4_open+0x770/0x9d0     nfsd4_proc_compound+0x7a2/0xe30     nfsd_dispatch+0x241/0x3e0     svc_process_common+0x5d3/0xcc0     svc_process+0x2a3/0x320     nfsd+0x180/0x2e0     kthread+0x199/0x1d0     ret_from_fork+0x30/0x50     ret_from_fork_asm+0x1b/0x30 Fix it by checking the result of nfsd4_run_cb and call nfs4_put_stid if fail to queue dl_recall.","modified":"2026-09-01T16:06:10.738938160Z","published":"2025-04-16T15:15:55.127Z","upstream":["CVE-2025-22025"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2025-22025"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.135-1"}]}],"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","6.1.123-1","6.1.124-1","6.1.128-1","6.1.129-1","6.1.133-1","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-2025-22025.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.25-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-22025.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.25-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-22025.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"}]}