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(parent: 6791b57) | patch
ksmbd: check invalid FileOffset and BeyondFinalZero in FSCTL_ZERO_DATA
authorNamjae Jeon <linkinjeon@kernel.org>
Sun, 19 Jun 2022 13:37:17 +0000 (22:37 +0900)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 7 Jul 2022 15:53:23 +0000 (17:53 +0200)
commit9d48194d3e490e62955867a9bad1c32259ac0035
tree29ca7b86ecc66c886aaf89cf07beb8f73b6f1120tree | snapshot
parent6791b57284f59715602e952f6eef8e6303108cf6commit | diff
ksmbd: check invalid FileOffset and BeyondFinalZero in FSCTL_ZERO_DATA

commit b5e5f9dfc915ff05b41dff56181e1dae101712bd upstream.

FileOffset should not be greater than BeyondFinalZero in FSCTL_ZERO_DATA.
And don't call ksmbd_vfs_zero_data() if length is zero.

Cc: stable@vger.kernel.org
Reviewed-by: Hyunchul Lee <hyc.lee@gmail.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
fs/ksmbd/smb2pdu.c diff | blob | history
Domain: System / Kernel;