smb: server: fix use-after-free in smb2_open()

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commit 1e689a5617 upstream.

The opinfo pointer obtained via rcu_dereference(fp->f_opinfo) is
dereferenced after rcu_read_unlock(), creating a use-after-free
window.

Cc: stable@vger.kernel.org
Signed-off-by: Marios Makassikis <mmakassikis@freebox.fr>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Marios Makassikis 2026-03-03 11:14:32 +01:00 • committed by Greg Kroah-Hartman

parent dbbd328cf5

commit 8f5b1a7cb0

1 changed files with 2 additions and 3 deletions

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fs/smb/server/smb2pdu.c

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