-

CVE-2026-89694

nfsd: check client ownership when cancelling a copy-notify stateid

In the Linux kernel, the following vulnerability has been resolved:

nfsd: check client ownership when cancelling a copy-notify stateid

On the OFFLOAD_CANCEL path (clp != NULL), manage_cpntf_state() freed the
target cpntf state without checking ownership. The lookup key
st->si_opaque.so_id is allocated cyclically (guessable) and the embedded
clientid is the fixed per-net nn->s2s_cp_cl_id, so any authenticated
NFSv4.2 client could cancel and free another client's copy-notify
stateid.

Compare the creating clientid recorded in state->cp_p_clid against the
requesting client's cl_clientid and return nfserr_bad_stateid on a
mismatch instead of freeing the entry.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version ce0887ac96d35c7105090e166bb0807dc0a0e838
Version < 88daaed26e17e1c7e851859b5bbb4f0e1ab6d0e9
Status affected
Version ce0887ac96d35c7105090e166bb0807dc0a0e838
Version < 81b2cfe767943922eca906a2a5af23a0ce5d0f35
Status affected
Version ce0887ac96d35c7105090e166bb0807dc0a0e838
Version < 6bba72b8ee68ad631b94bd439592cba46de54d7d
Status affected
Version ce0887ac96d35c7105090e166bb0807dc0a0e838
Version < 75268f6cfe26b09a7e4d3216367e87fe9e2a26aa
Status affected
Version ce0887ac96d35c7105090e166bb0807dc0a0e838
Version < b1eca07303594ca27f5dc360a6946bd7e1f5b04c
Status affected
Version ce0887ac96d35c7105090e166bb0807dc0a0e838
Version < b42dc26a14b4ad5d6daaada11ec4c70744141c25
Status affected
Version ce0887ac96d35c7105090e166bb0807dc0a0e838
Version < d801906165cb5cc250d5cbe44935594e170be3e2
Status affected
Version ce0887ac96d35c7105090e166bb0807dc0a0e838
Version < 6bdbfab96e0cf25e5f57dac5c09dc1749751a4bf
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 5.6
Status affected
Version 0
Version < 5.6
Status unaffected
Version <= 5.10.*
Version 5.10.270
Status unaffected
Version <= 5.15.*
Version 5.15.221
Status unaffected
Version <= 6.1.*
Version 6.1.188
Status unaffected
Version <= 6.6.*
Version 6.6.157
Status unaffected
Version <= 6.12.*
Version 6.12.109
Status unaffected
Version <= 6.18.*
Version 6.18.50
Status unaffected
Version <= 7.2.*
Version 7.2.4
Status unaffected
Version <= *
Version 7.3-rc1
Status unaffected
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.2% 0.1
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/b1eca07303594ca27f5dc360a6946bd7e1f5b04c
https://git.kernel.org/stable/c/b42dc26a14b4ad5d6daaada11ec4c70744141c25
https://git.kernel.org/stable/c/d801906165cb5cc250d5cbe44935594e170be3e2
https://git.kernel.org/stable/c/6bdbfab96e0cf25e5f57dac5c09dc1749751a4bf
https://git.kernel.org/stable/c/6bba72b8ee68ad631b94bd439592cba46de54d7d
https://git.kernel.org/stable/c/75268f6cfe26b09a7e4d3216367e87fe9e2a26aa
https://git.kernel.org/stable/c/81b2cfe767943922eca906a2a5af23a0ce5d0f35
https://git.kernel.org/stable/c/88daaed26e17e1c7e851859b5bbb4f0e1ab6d0e9