linux

Files

Ilia Gavrilov 80702f002b llc: fix data loss when reading from a socket in llc_ui_recvmsg()

commit 239af1970b upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2025-05-29 11:03:20 +02:00

af_llc.c

llc: fix data loss when reading from a socket in llc_ui_recvmsg()

2025-05-29 11:03:20 +02:00

Kconfig

net: remove redundant 'depends on NET'

2021-01-27 17:04:12 -08:00

llc_c_ac.c

llc/snap: constify dev_addr passing

2021-10-13 09:40:46 -07:00

llc_c_ev.c

net: llc: Correct some function names in header