CVE-2026-89540High· 7.0▾ TwilightA flaw was found in the Linux kernel's sunrpc component. A race condition exists where the `gssp_lock` mutex is not initialized before its associated `/proc/net/rpc/use-gss-proxy` entry is published. This allows a local attacker to trigger…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 38.5 · 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%
— → 4.1
none → medium
— → 4.1
none → medium
— → 7.8
none → high
7.8 → 4.1
high → medium
4.1 → 7.8
medium → high
Last analysed / modified upstream
7.8 → 7
A flaw was found in the Linux kernel's sunrpc component. A race condition exists where the gssp_lock mutex is not initialized before its associated /proc/net/rpc/use-gss-proxy entry is published. This allows a local attacker to trigger a scenario where multiple writers can concurrently access the set_gssp_clnt() function, leading to a denial of service for the first writer's client and a resource leak.
kernel: sunrpc: init gssp_lock before publishing proc entry — rated Moderate by Red Hat. Released 2026-09-11, updated 2026-09-15.
Affected:
No fix planned:
Out of support scope
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-80967Medium· 5.5kernel: ALSA: pcxhr: initialize mutexes before requesting threaded IRQ (CVE-2026-80967)
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)