CVE-2026-89753Medium· 5.5▾ SunlitA flaw was found in the Linux kernel's memory management subsystem. The `shrink_lruvec()` function, responsible for memory reclaim, fails to properly report Read-Copy-Update (RCU) task quiescent states on systems with preemption enabled. T…
▾ 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%
— → 4.7
none → medium
— → 4.7
none → medium
Last analysed / modified upstream
0.2% → 0.2%
— → 4.7
none → medium
4.7 → 5.5
A flaw was found in the Linux kernel's memory management subsystem. The shrink_lruvec() function, responsible for memory reclaim, fails to properly report Read-Copy-Update (RCU) task quiescent states on systems with preemption enabled. This can lead to RCU task stalls, causing system unresponsiveness or a denial of service.
kernel: mm/vmscan: report RCU-tasks quiescent states in shrink_lruvec() — rated Low by Red Hat. Released 2026-09-11, updated 2026-09-15.
Affected:
No fix planned:
Not affected:
Out of support scope
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-80977High· 7.0kernel: net: skbuff: don't touch shared zerocopy state in skb_tx_error() (CVE-2026-80977)
CVE-2026-80948Medium· 5.5kernel: wifi: iwlwifi: dvm: fix memory leak in iwl_op_mode_dvm_start() (CVE-2026-80948)
CVE-2026-80936Medium· 5.5kernel: wifi: mt76: mt7925: cancel mlo_pm_work on stop (CVE-2026-80936)
CVE-2026-80947High· 7.0kernel: wifi: rtl8xxxu: fix use-after-free from rx_urb_wq on stop (CVE-2026-80947)
CVE-2026-80980Medium· 5.5kernel: net/smc: stop killed, freed and out_of_sync sharing a byte (CVE-2026-80980)
CVE-2026-80981High· 7.0kernel: net/smc: fix use-after-free of the LLC qentry in smc_llc_srv_add_link() (CVE-2026-80981)