CVE-2026-89646Medium· 5.5▾ SunlitA flaw was found in the Ceph filesystem component of the Linux kernel. When a writeback operation is aborted during an unmount process, a reference to an inode (a data structure describing a filesystem object) is not properly released. Thi…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 30.3 · likelihood 0 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
Exploit-prediction probability, daily snapshots since Sep 12.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
0.2%
— → 4.4
none → medium
— → 7.8
none → high
7.8 → 4.4
high → medium
4.4 → 7.8
medium → high
7.8 → 4.4
high → medium
Last analysed / modified upstream
4.4 → 5.5
A flaw was found in the Ceph filesystem component of the Linux kernel. When a writeback operation is aborted during an unmount process, a reference to an inode (a data structure describing a filesystem object) is not properly released. This prevents the inode from being evicted, potentially leading to a kernel bug and a denial of service (DoS) condition, where the system becomes unresponsive or crashes.
kernel: ceph: fix leaked inode reference on writeback abort at umount — rated Low by Red Hat. Released 2026-09-11, updated 2026-09-15.
Affected:
No fix planned:
Not affected:
Fix deferred
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-89692Medium· 5.5kernel: nfsd: clear CALLBACK_RUNNING on failed delegation recall queue (CVE-2026-89692)
CVE-2026-89664High· 7.0kernel: nfsd: release OPEN-decoded posix ACLs via op_release (CVE-2026-89664)
CVE-2026-89645Medium· 5.5kernel: btrfs: drop recovered reloc root refs on recovery failure (CVE-2026-89645)
CVE-2026-89683High· 7.0kernel: nfsd: fix dentry ref leak on V4ROOT export filehandle lookup (CVE-2026-89683)
CVE-2026-80997Medium· 5.5kernel: net: ipa: fix stalled modem TX queue after runtime resume (CVE-2026-80997)
CVE-2026-89500High· 7.0kernel: ring-buffer: Make cpu_buffer::free_page a buffer_data_read_page (CVE-2026-89500)