Ilia Gavrilov 239af1970b llc: fix data loss when reading from a socket in llc_ui_recvmsg()
For SOCK_STREAM sockets, if user buffer size (len) is less
than skb size (skb->len), the remaining data from skb
will be lost after calling kfree_skb().

To fix this, move the statement for partial reading
above skb deletion.

Found by InfoTeCS on behalf of Linux Verification Center (linuxtesting.org)

Fixes: 30a584d944 ("[LLX]: SOCK_DGRAM interface fixes")
Cc: stable@vger.kernel.org
Signed-off-by: Ilia Gavrilov <Ilia.Gavrilov@infotecs.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
2025-05-19 12:12:54 +01:00
2024-09-01 20:43:24 -07:00
2025-02-19 14:53:27 -07:00
2024-03-18 03:36:32 -06:00

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