CVE-2026-80791
2026-09-04
16h18 +00:00
16h18 +00:00
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Mô tả CVE
In the Linux kernel, the following vulnerability has been resolved:
nvmet-auth: zero the AUTH_RECEIVE response buffer
nvmet_execute_auth_receive() allocates the response buffer with kmalloc()
sized by the host-supplied AUTH_RECEIVE allocation length, but the
DH-HMAC-CHAP builders write only a fixed-size message into it. The full
allocation length is then copied to the wire by nvmet_copy_to_sgl(), so a
remote initiator receives the bytes past the built message -- up to nearly
a page of uninitialized slab -- during the pre-authentication handshake.
Allocate the buffer with kzalloc() so the unwritten tail is zeroed before
it is sent; conforming responses are unaffected.
