Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix wrong next length validation of ea buffer in smb2_set_ea() There are multiple smb2_ea_info buffers in FILE_FULL_EA_INFORMATION request from client. ksmbd find next smb2_ea_info using ->NextEntryOffset of current smb2_ea_info. ksmbd need to validate buffer length Before accessing the next ea. ksmbd should check buffer length using buf_len, not next variable. next is the start offset of current ea that got from previous ea.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 before aeb974907642be095e38ecb1a400ca583958b2b0; affected e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 before f339d76a3a972601d0738b881b099d49ebbdc3a2; affected e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 before 4bf629262f9118ee91b1c3a518ebf2b3bcb22180; affected e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 before 79ed288cef201f1f212dfb934bcaac75572fb8f6 |
| Linux / Linux | affected 5.15; unaffected 0 before 5.15; unaffected 5.15.127 through 5.15.*; unaffected 6.1.46 through 6.1.*; unaffected 6.4.11 through 6.4.*; unaffected 6.5 through * |
CWE
No CWE identifiers supplied.